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Apple 3D Vision Report: 3D Vision Depth Disassembly and Analysis (Part One)

Editor’s Note: This article comes from WeChat WeChat official account "Haitong Electronics Research" (ID: htzqdz) and is written by Haitong Securities Electronics Team.
Analysis of Apple 3D Visual Structured Light Scheme
Analysis of PrimeSense (Apple Acquisition) Scheme of Structured Light Pioneer
PrimeSense, an Israeli company, was founded in 2005. In 2006, it developed a 3D sensor, and established contact with Microsoft at the E3 exhibition that year. At the E3 exhibition in 2009, Microsoft released the Kinect generation with a built-in PrimeSense 3D sensor. At the end of 2010, PrimeSense cooperated with ASUS to develop Xtion Pro, which used the same 3D sensor as Kinect. In 2012, PrimeSense introduced Capri, the world’s smallest 3D sensor at that time. Since Primesense was acquired by Apple in 2013 and no longer exported technology, Microsoft began to use its own 3D sensor on Kinect 2.0 in 2014.
The core technology of Primesense is Light Coding optical coding technology, which belongs to one kind of structured light technology and is the most representative structured light technology at present. Structured light technology is to code the space to be measured with light source illumination, project a one-dimensional or two-dimensional specific image onto the measured object, and judge the surface shape and depth information of the measured object according to the deformation of the image. Different from the general structured light scheme (such as Intel Realsense structured light scheme), the light source of Light Coding is called "laser speckle", which is a diffraction spot formed after the laser irradiates the DOE diffraction grating. As long as such structured light speckle is put in the space, the whole space will be marked. If an object is put into this space, the position information of the object can be known by analyzing the speckle pattern on the object, so that the depth information can be collected and captured very quickly.
Primesense’s Light Coding is to emit laser with infrared rays, form laser spots through the DOE (Diffraction Grating) in front of the lens, and then evenly distribute and project them in the measurement space, and then record each speckle in the space through the infrared camera to obtain the original data, and then calculate it into an image with 3D depth through the chip.
Therefore, disassembling the first generation of Microsoft Kinect1 products, we can see that its main components include: infrared emitter, infrared CIS sensor, visible light sensor and core data processing chip (PS1080).
The workflow of the Primesense structured light scheme is as follows: an infrared laser emits near-infrared light, which is encoded by optical devices such as DOE to form laser speckle, and then projected onto space objects; After the laser spot is projected on the object, the displacement changes. Infrared CIS collects the deformed spot information and transmits the information to the PS1080 chip. The Z-axis depth information of the object can be obtained through the calculation of the algorithm in the chip. Visible light CIS collects the XY-axis plane image information of the object, and also transmits it to the PS1080 chip. The three-dimensional information of the object in space can be obtained by comprehensive processing of the plane information and depth information.
On the chip side, the PS1080 system-level SOC chip made by Primesense is adopted, which can provide images with 640*480 resolution, with an x/y plane resolution of 3 mm (at a distance of 2 m) and a depth accuracy of 1cm. PS1080 chip has superior parallel computing logic ability, which can control near-infrared light source, encode images and actively project near-infrared spectrum. At the same time, the projected Light Coding infrared spectrum is received by a standard infrared CMOS image sensor and the encoded reflected speckle image is transmitted to PS1080, which processes it and generates a depth image.
Overall Structure Analysis of 3D Visual Structured Light Scheme Products
By disassembling the product structure of Primesense, a pioneer of structured light, it can be seen that the whole structured light product scheme mainly consists of four parts: TX projector (mainly infrared light emitter IR LD), RX receiver (mainly infrared light image sensor IR CIS), RGB visible light image sensor (Vis CIS) and special data Processor Chip.
The product structure of 3D visual structured light scheme can also be confirmed in Intel Realsense short-range structured light scheme. Intel Realsense close-range 3D vision scheme is mainly based on the principle of structured light, which consists of an infrared emitter, an infrared sensor, a visible light color sensor and a real-world image processing chip. The infrared emitter emits near infrared light to the surface of the object, and the infrared sensor and the color sensor collect the depth image and the plane image of the object respectively, and finally get the three-dimensional position information through the processing of the real sensor chip.
Therefore, we can conclude that the working principle of a typical structured light 3D vision system is as follows: firstly, an infrared laser emitter (IR LD) emits a specific pattern of near infrared light (such as laser speckle), and after being reflected by an object (such as a human hand or a human face), the deformed pattern is received by an infrared image sensor (IR CIS), and the position (Z axis) of the human hand/face is calculated by an algorithm; At the same time, the visible light image sensor collects the hand/face information (Vislight) in two dimensions (X and Y axes). The information of two image sensors is collected into a special image processing chip, so as to obtain three-dimensional data and realize spatial positioning.
Deep Disassembly and Supply Chain Analysis of 3D Visual Structured Light Scheme
3D Visual Structured Light Scheme ——TX Infrared Emitting Part
TX infrared light emitting part is one of the important components of the whole 3D vision, which provides the core near-infrared light source, and the quality of the emitted image is very important to the whole recognition effect. Compared with TOF scheme, 3D vision with structured light scheme is much more complicated, mainly because the structured light scheme needs pattern images (such as laser speckle, etc.) for spatial identification, so customized DOE (diffraction grating) and WLO (wafer-level optical lens, including beam expander, collimator and projection lens, etc.) are needed.
The working principle of the whole TX transmitting part is as follows:
1) First, the laser transmitter VCSEL emits near-infrared light with a specific wavelength (generally 880nm/910nm/940nm), a Gaussian beam with good collimation and narrow cross-sectional area.
2) firstly, a Beam Shaper beam shaper beam is used to form a uniform collimated beam with a large cross-sectional area. Beam Shaper mainly includes a Beam Homogenizer and a Collection Lens. The beam expander is used to enlarge the cross-sectional area of the laser beam, so that the cross-sectional area of the laser beam can cover the diffraction elements behind it. The collimator is used to re-adjust the expanded laser beam into parallel light.
3) The laser beam passing through Beam Shaper then passes through DOE diffractive optical elements to form a specific optical pattern.
4) The optical pattern formed by DOE passes through the final Projection Lens, and then it can be emitted from the TX transmitter.
4.1.1VCSEL is the best scheme for near infrared light source.
At present, there are three kinds of near-infrared light sources that can provide 800-1000nm band: infrared LED, infrared LD-EEL (edge emitting laser diode) and VCSEL (vertical cavity surface emitting laser).
VCSEL can be said to be a kind of infrared laser LD, and its full name is vertical cavity surface emitting laser. As the name implies, it adopts vertical emission mode, which is different from other infrared LD side emission modes. The vertical structure of VCSEL is more suitable for wafer-level manufacturing and packaging testing. Compared with edge-emitting LD, VCSEL has advantages in cost after mass production and high reliability, and there is no failure mode of traditional laser structure such as dark line defect. Compared with LED, VCSEL has higher spectral quality, smaller temperature drift of central wavelength, faster response speed and obvious advantages.
Based on the comprehensive analysis of the three schemes, although the cost of LED is low, the angle of emitting light is large, so it is necessary to output more power to overcome the loss. In addition, LED can’t be modulated quickly, which limits the resolution and needs to increase the flash duration. Edge-emitting LD is also an alternative scheme for gesture recognition, but the output power is fixed, and the mode of edge-emitting is not compatible in manufacturing technology; Compared with LD-EEL, VCSEL has the advantages of low driving voltage and current, low power consumption and higher tunable frequency of light source (up to several GHz), which is compatible with compound semiconductor technology and suitable for large-scale integrated manufacturing. Especially, VCSEL has the advantages of low power consumption, high adjustable frequency and vertical emission, which makes it more suitable for consumer electronic intelligent terminals than LD-EEL.
Because the manufacturing process of VCSEL is difficult and the product cost is relatively high, with the attention of major manufacturers, especially the rapid development of high-speed optical communication, the VCSEL process has gradually matured. In recent years, VCSEL has been widely used as a laser source in the field of high-speed optical network transmission, and the current product price is very close to LD-EEL.
The manufacture of VCSEL depends on MBE (Molecular Beam Epitaxy) or MOCVD (Metal Organic Vapor Deposition) process. Multi-layer reflection and emission layers are grown on GaAs (about 80% share) or InP (about 15% share) wafers. A typical VCSEL structure includes a laser cavity, top and bottom distributed Bragg reflectors (DBR), electrodes, etc. The main parts of the laser cavity are quantum wells and optical confinement structure. Because VCSEL maInly uses group III and III compound semiconductor materials GaAs or InP (containing in, Al and other dopants), the industrial chain of mobile VCSEL is similar to that of compound semiconductor.
At present, the main VCSEL suppliers in the world include Finsar, Lumentum, Princeton Optronics, Ⅱ ⅵ and other companies, which are in the forefront of research and development of mobile VCSELs. The specific production can be divided into IDM and OEM. Under the OEM mode, companies such as IQE, Quanxin and Lianya Optoelectronics provide EPI epitaxial wafers of group III and III compounds, and then companies such as Hongjieke and Wenmao manufacture wafers, and then they become independent VCSEL devices after being sealed and tested by companies such as Lianjun, Silicon Products and Tongxin (substrate).
At present, the companies that are committed to the design of miniaturized VCSEL for mobile terminals mainly include foreign optical communication device companies such as Finsar, Lumentum, Princeton Optronics (acquired by AMS) and II VI. At home, Guangxun Technology and Huaxin Semiconductor have the design and production capacity of low-end VCSELs, and Changchun Institute of Optics and Mechanics has certain competitiveness in VCSEL technology research and development. But on the whole, there is a big gap between domestic companies and overseas giants.
In recent years, excellent entrepreneurial companies have begun to appear in VCSEL in China. For example, Zonghui Optoelectronics, which was founded in Silicon Valley in January 2016, has made high-efficiency and high-performance VCSEL chip products, covering the two bands of 850 nm and 940 nm, and is expected to be applied to the 3D visual consumer market.
According to Lumentum’s financial report briefing in the second quarter of 2017, its orders for consumer-grade VCSEL products jumped sharply from $5 million in the last quarter to $200 million. According to the analysis of industrial chains in the United States and Taiwan Province (such as BI, Science and Technology Times, etc.), the orders mainly came from Apple. We judge that Lumentum will provide VCSEL devices in 3D cameras for Apple’s next-generation iPhone8, and it is the main supplier. In addition to Lumentum, II-VI is also in Apple’s supply chain, and Finisa is also expected to join.
4.1.2DOE is very important for the structured light scheme.
In the structured light scheme of 3D vision, the depth information must be measured by using a specific pattern optical pattern (such as laser speckle), so DOE is one of the most important core components for the structured light scheme.
DOE Diffractive Optical Elements are a kind of optical elements based on the diffraction principle of light, using computer-aided design, and through the semiconductor chip manufacturing process, etching on the substrate (or the surface of traditional optical devices) to produce a stepped or continuous relief structure (usually grating structure), forming a coaxial reproduction and having high diffraction efficiency.
The basic principle of DOE is to prepare a step (grating) with a certain depth on the surface of the element by using the diffraction principle. When the light beam passes through, it produces different optical path differences, which meets the Bragg diffraction conditions. Through different designs, the divergence angle of the light beam and the shape of the light spot are controlled, and the function of forming a specific pattern of the light beam is realized. DOE is a single optical element, which can disperse the incident beam into countless beams and then emit them. Each beam emitted after dispersion has the same optical characteristics as the original incident beam, including polarization, phase and so on. DOE can generate 1D(1xN) or 2D(MxN) beam matrix, depending on the surface microstructure of DOE.
In the 3D visual structured light scheme, the function of DOE is to transform the point light source of the laser into a speckle pattern by using the diffraction principle of light. Firstly, according to the optical requirements of a specific diffraction image, a three-dimensional master mold is designed and made, and then a DOE grating is made according to the master mold. The grating surface has three-dimensional microstructure patterns, all of which are in the micron level. The linear laser emitted by the laser diffracts when it passes through the DOE. The angle and quantity of diffracted light are controlled by the pattern on the DOE, and the diffracted light spot has the information of lighting code.
DOE will also play an important role in Apple’s structured light scheme. We can analyze the patent of structured light of Apple Primesense, as shown in the figure on the right below, and the DOE diffraction grating in the transmitter assembly is the key to realize laser speckle.
The industrial chain structure of DOE diffractive optical elements mainly includes DOE optical pattern design, DOE manufacturing and processing, and optical element module packaging. In addition, it also needs two supporting auxiliary links: raw materials (mainly special Shi Ying glass, photosensitive glass, etc.) and precision optical processing equipment (such as mask aligner, etc.).
As for Apple, according to the information of Taiwan Province’s industrial chain (Zhongshi Electronic News and Digitimes, etc.), the DOE for Apple’s 3D visual structural light will be designed by Primesense, micro-nano processing of the pattern will be provided by TSMC, ITO materials will be provided by Caiyu, and device packaging will be provided by Jingcai Technology.
At present, there are not many companies with advanced DOE design and manufacturing, and the main suppliers in the world are CDA in Germany, Silios in France, Holoeye in Germany, etc., especially in the field of mobile terminal micro-DOE devices, no related products have been seen. According to the analysis of Taiwan Province Science and Technology Media Zhongshi Electronic News, Qualcomm is currently actively developing a 3D visual structured light scheme, and in DOE and WLO, it will adopt the scheme of Himax Qijing Optoelectronics. Domestically, there is no company with DOE design and processing capabilities.
4.1.3 Wafer-level optical element WLO is the core component.
According to our previous analysis of the TX part of structured light, the near-infrared light emitted by VCSEL first passes through a Beam Shaper (mainly including beam expander and collimating element Collection Lens) to form a uniform collimated beam with a large cross-sectional area. Then the optical pattern formed by DOE passes through the final Projection Lens before it can be emitted from the TX transmitting part.
At present, when 3D visual structured light scheme is used in somatosensory interactive products, the requirements for the device size are not high. For example, Intel Realsense front structured light products use ordinary optical lenses and DOE devices, and the device size is large.
In order to apply the structured light scheme to mobile consumer electronic products, the emitter device needs to be compressed in volume and size, so the Beam Shaper beam shaper and the Projection Lens are both fabricated by WLO (wafer-level optical device) process.
WLO wafer-level optical devices refer to wafer-level lens manufacturing technology and process. Different from the processing technology of traditional optical devices, WLO process is characterized by small size, low height and good consistency by copying and processing lenses in batches on a whole glass wafer with semiconductor technology, and pressing multiple lens wafers together and then cutting them into a single lens. The position accuracy between optical lenses reaches nm level, which is the best choice for standardized optical lens combination in the future.
Different from traditional optical lens processing, WLO process is more suitable for mobile consumer electronic devices. Especially in the case of complex structure of 3D vision transmitter, the optical device adopts WLO technology, which can effectively reduce the volume and space, at the same time, the device has good consistency and high beam quality, and the semiconductor technology has cost advantage after mass production.
Different from the simple process and technology commonly used in the design and processing of traditional optical lenses, WLO process is more complicated because it uses semiconductor technology and design ideas to manufacture optical devices. Both the design process and the processing link need more advanced design ideas and more precise processing, so the corresponding processing has high added value.
According to the information of American industrial chain (such as TechCrunch, etc.), Heptagon (acquired by AMS Austria Microelectronics) will provide WLO wafer-level optical lens for TX emitter, which is mainly because Heptagon has accumulated many patents in the field of WLO design and has strong technical strength. In addition, according to TechCrunch’s analysis, Himax Qijing Optoelectronics from Taiwan Province is also a potential supplier in the future.
Domestically, semiconductor packaging and testing plants Huatian Technology and Jingfang Technology laid out earlier in WLO, mainly providing post-WLO processing technology, especially Huatian Technology, which has mature processing technology and is expected to benefit in the future.
3-D Visual Structured Light Scheme ——RX Infrared Receiving Part
In the 3D structured light scheme, the infrared receiving part of RX is mainly an infrared camera, which is used to receive infrared light reflected by objects and collect spatial information. The infrared camera mainly includes three parts: infrared CMOS sensor, optical lens and infrared narrow-band interference filter. It is similar to the mainstream visible camera in basic structure, but there are differences in specific parts: 1) Visible CMOS sensor needs to identify RGB three colors, which requires high resolution, while infrared CMOS only needs to identify near infrared light, which requires low resolution; 2) The visible light camera needs an infrared cut-off filter to cut off the infrared light and only pass the visible light, while the infrared camera only passes the near-infrared light of a specific wave band and cuts off the visible light, so it needs a narrow-band filter; 3) Because the visible camera requires high image resolution, the design of optical lens is very complicated, and the infrared camera does not require high optical lens.
4.2.1 infrared CMOS sensor needs to be specially made.
Infrared CMOS image sensor (IR CIS) is used to receive infrared light reflected by hands or faces, which is a mature device in technology. IR CIS appears in Samsung Note7 and Fujitsu ARROWS NX F-04G phones equipped with iris recognition function.
In the 3D vision scheme, infrared CMOS sensor is used to receive infrared images reflected by objects, which is consistent with visible CMOS in principle. The difference is that visible CMOS sensor needs to identify RGB three colors and present high-definition images, so it requires high resolution, while infrared CMOS only needs to identify near-infrared light in a specific band corresponding to emitted light, and its function is to obtain depth information. In the structured light scheme, it only needs to collect images after infrared pattern is reflected by objects, so it requires low resolution. At present, 2M pixel infrared CMOS can meet general 3D vision requirements (such as gesture recognition, face recognition, etc.).
Because 3D vision has just started, different manufacturers adopt different image recognition schemes and have different requirements for infrared CMOS (such as resolution, response speed, etc.), so the infrared CMOS needed in 3D vision scheme needs to be customized.
At present, infrared CMOS image sensor suppliers mainly include stmicroelectronics, Wonderland Optoelectronics, Samsung Electronics, Fujitsu, Toshiba and other companies. According to Yole’s analysis, stmicroelectronics has developed a 3D imaging infrared sensor that may be used for iPhone 8, and will start to provide infrared CMOS image sensors for Apple on a large scale in the second half of 17 years. The chip will be designed by stmicroelectronics, manufactured by TSMC, and provided by Tongxin Electric with wafer recombination (RW).
At home, there are not many companies involved in infrared CMOS sensors at present, and the layout of Sibike Company is earlier. According to the company’s public information, a special team has been set up to research and develop 2 million and 5 million CMOS image sensors with high infrared sensitivity, and three products, namely SP9250, SP9550 and SP9260, have been launched, which have improved the infrared response by about 50% compared with the traditional image sensors for camera shooting.
There is another scheme for infrared sensor, namely SPAD (Single Photon Avalanche Diode) which has been used in the distance sensor for mobile phones, and can realize the same function as infrared CMOS, and detect infrared light, such as SPAD sensor provided by stmicroelectronics used in iPhone 7.
At present, the infrared CMOS sensor has a big problem that it is difficult to dissipate heat, which makes the whole chip need to add additional metal heat sinks. Compared with infrared camera, SPAD has the advantages of simple structure, small size, low cost and good heat dissipation, but its function is limited, and the resolution is difficult to improve. SPAD can only track a small amount of infrared light, which is more than enough in distance sensors. If high-quality 3D imaging is to be realized, the effect of SPAD is not as good as that of infrared CMOS, and the existing SPAD needs technical upgrading. According to the analysis of YOLE, the upgraded SPAD can also be used as an "imager" in 3D vision as an infrared detector, thus reducing the cost and solving the heat dissipation problem.
4.2.2 Near-infrared narrow-band interference filter value enhancement
For 3D vision, there is a big difference between IR camera and RGB camera in color filter. Filters can be divided into band-pass filters, short-wave cut-off filters and long-wave cut-off filters according to their spectral characteristics. Band-pass filter means that the light in the selected specific band passes through, and the light outside the passband is cut off. According to the bandwidth, it is divided into narrow band and wide band, usually according to the value of bandwidth compared with the central wavelength. Less than 5% is narrow band and more than 5% is wide band. In 3D vision products, in order to reduce the interference of visible light, narrow-band interference filters are widely used.
The traditional RGB visible camera needs to use infrared cut-off filter to filter out unnecessary low-frequency near-infrared light, so as to avoid the influence of infrared light on the visible part and produce false colors or ripples, and at the same time, it can improve the effective resolution and color reduction. However, in order not to be disturbed by ambient light, infrared cameras need to use narrow-band filters, which only allow near-infrared light in a specific band (such as the band corresponding to the light source at the emitting end) to pass through.
At present, the near-infrared narrow-band filter mainly adopts the interference principle, which requires dozens of optical coatings, which has high technical difficulty, so it is more valuable than the traditional cut-off filter. The thin film of narrow-band filter is generally composed of two kinds of films with low refractive index and high refractive index. After superposition, the number of layers reaches dozens, and the parameter drift of each film may affect the final performance. Moreover, the transmittance of narrow-band filters is very sensitive to the loss of thin films, so it is very difficult to prepare filters with high peak transmittance and narrow half bandwidth. There are many methods to prepare thin films, including chemical vapor deposition, thermal oxidation, anodic oxidation, sol-gel method, atomic layer deposition (ALD), atomic layer epitaxy (ALE), magnetron sputtering, etc. However, the properties of thin films prepared by different methods are very different. At present, advanced narrow-band color filters are mainly made by chemical vapor deposition.
According to Barron’s Weekly, VIAVI will provide near-infrared narrow-band interference filters for Apple’s next-generation Iphone 8, and both parties have signed an order intention agreement. Apple will purchase 150 million optical filters from VIAVI for 3D vision of iPhone series. At present, in addition to VIAVI, the suppliers of near-infrared narrow-band interference filters are Buhler, Materion and Wavelength.
Domestically, Crystal Optoelectronics has strong technical strength and international competitiveness in the field of color filters, and is one of the important suppliers of color filters worldwide.
4.2.3 The requirements of optical lens used in infrared camera are not high.
Because the visible light camera requires high image resolution, the design of optical lens is very complicated. Photographing quality is not only related to the number and size of pixels in CIS, but also related to the quality and number of optical lenses. The better the quality and number of lenses, the better the imaging quality, but the number of lenses determines the height of the camera module. At present, the optical lenses of smart phones are generally composed of 5P or 6P lenses. More lenses can be used to increase the light transmittance and improve the image quality, but it also makes the lens design more complicated.
Infrared cameras have lower requirements for optical lenses than visible cameras, and have higher tolerance for light flux, distortion correction and other indicators. At present, most 3D vision products use mature ordinary lenses. Foreign optical lens suppliers include Daliguang, Yujing Optoelectronics, Kanto Chenmei, etc., and domestic companies such as Shunyu Optics, Lianchuang Electronics, Xuye and Chuanhetian can provide them.
Special Image Processing Chip-High Technical Barriers
The image processing chip needs to process the position information collected by infrared CIS and the object plane information collected by visible CIS into a three-dimensional image with depth information in a single pixel to complete 3D modeling, and its data processing and calculation complexity is higher than that of the general traditional ISP image processing chip. Therefore, most 3D vision solution manufacturers design their own solutions or cooperate with traditional ISP giants for research and development.
The chip has high technical barriers, especially the requirements on algorithm level, and needs to process depth information according to 3D vision scheme. At present, there are only a few chip giants in the world that can provide such products, including stmicroelectronics, Texas Instruments, Infineon and so on.
The first generation product of Microsoft Kinect is analyzed, and its core image processing chip is PS1080 system-level SOC chip made by Primesense. We judge that the core 3D image processing chip in Apple’s 3D vision solution will still be designed and provided by Primesense, and will be manufactured by foundries such as TSMC.
In addition to the core image processing chip, the whole 3D vision scheme also needs many auxiliary chips, such as audio processing, video processing, storage, simulation, common camera control, etc. These chips are very mature and widely used in consumer electronics products. At the same time, smart phones have been equipped with many auxiliary chips, so 3D vision can directly use the existing chips.
Visible light camera-non-new service
In 3D vision system, whether it is structured light scheme or TOF scheme, the function of infrared ray is to collect the depth Z-axis information, so as to determine the depth of field information of the object, while the plane XY-axis information of the object needs to be collected by ordinary visible light camera, so visible light camera is indispensable for 3D vision.
However, at present, smart phones are generally equipped with at least two visible light cameras (one front and one rear), so after the smart phone is equipped with 3D vision, there is no need to add additional visible light cameras, so the existing cameras on the mobile phone can be directly used. Therefore, 3D vision has not brought new increments to the visible light cameras.
System module manufacturing and assembly-difficult and high value
Because the 3D vision scheme involves many hardware parts, it needs the cooperation of four parts: infrared emitting laser, infrared receiving camera, visible light camera and image processing chip. Especially, the matching between infrared light emission and reception is very important to the recognition effect and accuracy of the whole 3D vision scheme, so the packaging and integration of the whole system module is very critical.
At present, 3D vision has been successfully applied to somatosensory interactive devices like Microsoft Kinect, but this kind of devices are bulky and have low requirements for the assembly of the whole system. With the application of 3D vision in consumer electronic products such as smart phones, the manufacture and assembly of its system modules become very important.
It is difficult to manufacture the 3D vision module of the mobile terminal, which is mainly reflected in the following aspects: 1) The precise optical elements such as DOE and WLO contained in the 1)TX transmitter need very high accuracy in assembly, and difficult coaxiality adjustment is adopted; 2) The VCSEL laser contained in the transmitter needs spectral detection and calibration; 3)TX transmitter, RX receiver and visible camera are independent of each other, and their accuracy and stability in spatial position are very critical to the final 3D imaging effect, which requires difficult matching and calibration.
According to the report of Taiwan Province Science and Technology Times, the assembly of Apple’s 3D vision module (including TX transmitter assembly, RX receiver assembly and system assembly) will be undertaken by Foxconn (system assembly and RX receiver assembly), LG Innotek(TX transmitter assembly), Sharp(RX receiver assembly) and other companies.
In Lenovo Phab2 Pro mobile phone, the module packaging and integration of 3D depth camera is completed by Shunyu Optics. Domestically, besides Shunyu Optics, camera module companies such as Shenzhen O-film Tech Co.,lt and Qiu Ti Technology also have strong technical strength.
Risk warning: the process of mobile terminal of 3D vision technology is too slow; Domestic related companies lack competitiveness.
Extended Reading: Apple 3D Visual Report: Leading the Industry Trend (Part I)
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Chief Investment Officer of BlackRock Jianxin Wealth Management: Deeply cultivate CCB’s channel investment and research capabilities, focusing on equity and multi-assets.

Source: 21st century business herald.

  21 Interview with Chief Investment Officer of BlackRock Jianxin Finance: Deeply cultivate CCB channels, and focus on equity and multi-assets in investment and research capabilities.

  21st century business herald reporter Fang Haiping and intern reporter Xinyu Chen reported that with the appearance of the first product, the joint venture financial management company gradually unveiled its veil to the market. As a product of the dual background of the net-worth transformation of China Bank’s wealth management market and the financial opening to the outside world, the positioning and business direction of joint venture wealth management companies have attracted the attention of the asset management market since its establishment.

  In particular, BlackRock Public Offering of Fund was approved to be established, becoming the first foreign-controlled Public Offering of Fund in China market. In the process of deepening financial management transformation, the form of bank financial management is getting closer and closer to that of Public Offering of Fund. What is the differentiated positioning between BlackRock CCB Financial Management and CCB Financial Management, BlackRock CCB Financial Management and BlackRock Fund? What is the long-term development strategy of BlackRock Jianxin Finance? 21st century business herald recently interviewed Zhu Guoqiao, deputy general manager and chief investment officer of BlackRock Jianxin Finance, and he responded to the concerns of these markets.

  In May of this year, BlackRock Jianxin Wealth Management was approved to start business, becoming the second joint venture wealth management company to start business. Three months later, its first wealth management product, BlackRock Beiying A-share New Opportunity, privately owned equity wealth management products. It is understood that it is currently in the fundraising period.

  21st century: What is the orientation and development direction of BlackRock CCB Financial Management? What are the differences and relationships between BlackRock CCB Financial Management and other Chinese-funded financial management salaries, and BlackRock Fund?

  Zhu Guoqiao: The relationship between BlackRock CCB Financial Joint Venture and CCB Financial, a wholly-owned financial subsidiary of CCB, is very clear. In the process of preparation, we have full communication. The joint venture financial company will fully understand the needs of CCB’s customers and products with the help of partners’ resources, meet the different needs of investors through CCB channels, encourage more people to convert their savings into investment, and help them achieve wealth and happiness.

  The relationship between BlackRock CCB Financial and BlackRock Fund is also very clear. Blackrock CCB Financial mainly serves the customers of CCB, and understands and meets the needs of CCB customers. BlackRock Fund is a market-wide and omni-channel business. The dual-track layout of the two meets the needs of customers with different risk preferences through different distribution channels.

  21st century: What is the setup of your investment and research team and the construction of your investment and research ability? What kind of ability will you pay more attention to in the future?

  Zhu Guoqiao: Our company’s big strategic principle is to give full play to the advantages of all shareholders, and the investment and research team setting is also consistent with this. At present, the investment and research team members include overseas personnel from BlackRock, personnel from China Construction Bank/CCB Financial Management, and investment and research talents hired by other external asset management institutions in China’s state-owned assets management market.

  At present, the capacity building of investment and research is mainly based on equity investment, and the future development direction mainly takes into account the investment direction of multi-assets, and also fully considers the factors when recruiting externally. Many investment and research personnel, including myself, have rich experience in multi-assets investment.

  I think joint venture financial companies have a good prospect in multi-asset investment in the future. Doing multi-asset investment requires various investment capabilities, including equity investment and bond investment. Therefore, from the aspect of building investment capabilities, we must definitely develop in multiple directions. As for the specific products to be launched, it depends on the demand of channel customers.

  21st century: Your first product is an equity product. What is the decision-making process and what are the considerations?

  Zhu Guoqiao: This is also a decision made on the basis of full consideration and research. Three factors are mainly considered:

  First, when we studied the customer demand of CCB in the early stage, we found that the concept of asset allocation was emphasized one by one throughout CCB. This concept has been widely used in private bank customers and private bank channels. In this process, different types of assets and different risk levels are needed, and there is a great demand for equity products.

  Second, there are few equity products in bank wealth management products. At present, this part of customers’ demand is met by Public Offering of Fund or private equity funds. We think there are great opportunities here, and we also have this ability and advantage to fill a big gap in the market.

  Thirdly, it is also a great demand for supervising the introduction of foreign capital to participate in China’s wealth management market, hoping to introduce some international investment ideas and ways to enrich the product types of China’s wealth management market.

  21st century: What is the future product line layout?

  I wish to cross the bridge: we will do in-depth research after the first equity product, and then we will launch corresponding investment strategies and launch corresponding products for other needs. In fact, we very much believe that multi-assets will have a relatively large application space in the future. Multi-assets can be applied in different ways from different dimensions.

  Customers can allocate assets in a multi-asset way, and asset allocation itself has different applications. For example, investment consultants of private banks can provide advice to investors in a multi-asset way. In addition to asset allocation, other products such as fixed income+are an application of multi-assets to some extent, but at present, many stick to+in the market are based on fixed income and then add some other products. In fact, there may be a better way to achieve the investment purpose of fixed income+want to achieve. Starting from the investment goal, we can meet this investment strategy to the greatest extent by using various strategies, which is more flexible and easier to meet the demands of investors than adding something from the fixed income.

  21st century: How is the channel considered and planned?

  I wish to cross the bridge: in the early stage, we mainly studied and served the channel customers of CCB. In the final analysis, we hope to become the most respected and trusted wealth management company in the market. To achieve this, it is very important to fully understand the needs of customers and meet them in different ways. Instead of casting a net throughout the market, we hope to deepen the channel of CCB.

  As for whether there will be other expansion in the future, we will judge when it is appropriate. In fact, there are many things to do here for a long time.

  21st century: There are many levels and types of customers of CCB. Do you cover all or focus on a certain customer group?

  Zhu Guoqiao: Full coverage. In fact, there is a very obvious feeling in the previous research process that there are many unmet needs of both private bank customers and gold customers. We hope to use BlackRock’s experience to supplement and meet the needs of these customers.

  21st century: How do you view the current market situation, investment opportunities and asset allocation strategies?

  Zhu Guoqiao: At present, China has shown the world its long-term investment value. In July this year, BlackRock think tank released the global market outlook for the second half of the year. In this outlook, we singled out China from emerging markets for the first time and appealed to global investors to increase the allocation of China. Facing the numerous investment opportunities in China, we will make use of the breadth and depth of BlackRock’s global investment, especially its characteristics and advantages in stock and asset allocation, and strive to bring BlackRock’s unique strategies and products to China investors. Our first product, Beiying A-share, is a new opportunity. On the basis of long-term market returns in China, we strive to provide investors with sustained and stable excess returns, which is a very good long-term asset allocation tool.

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The Xingrui L compact car has arrived, with a price of 126,700.

If you don’t consider the cost of using the car later when you buy a car, you will regret it afterwards. For example, today’s performance in this respect is worth talking about. Let’s take a look at it together.

Let’s take a look at the appearance of Xingrui L. The front of Xingrui L gives people a very domineering feeling and looks very deep. With headlights, the visual effect is not bad. The car is equipped with LED daytime running lights, automatic opening and closing, adaptive far and near light, delayed closing and so on. Coming to the side of the car, the body size of the car is 4825MM*1880MM*1469MM. The car adopts domineering and stylish lines, and the side circumference gives people a very simple feeling. With large-sized thick-walled tires, it gives people a very sharp feeling. Looking back, the overall shape of the rear of the car echoes the front face, and the taillights show a soft design style. Together with the unique exhaust pipe, the whole looks very dynamic.

Sitting in the car, the interior looks very dynamic and lively, and the overall shape is remarkable. The steering wheel of the car is well designed and made of leather, which gives a good grip experience. From the central control point of view, with the 13.2-inch central control screen, the interior design is quite layered, which meets the aesthetic standards of most consumers. The interior feels good, let’s take a look at the dashboard and seats. The car is equipped with a spiritual dashboard and its shape has taken the sports route. The car adopts leather seats, which are wide and thick, and improve the riding experience of drivers and passengers.

The car is equipped with car networking, driving mode selection, remote control key, Bluetooth key, interior atmosphere light, traction control (ASR/TCS, etc.) and other configurations, and the configuration has reached the mainstream level of the same level.

The model class introduced today is the most considered class when many people buy their first car, mainly because the size of this class is moderate and the price is reasonable. Today, you can go to the 4S shop to experience this car.

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Shanghai: Grasp the prevention and control work carefully and resolutely block the spread of the epidemic.

  Cctv news(News Network): Shanghai adheres to the general policy of "dynamic zero clearing", takes many measures and pays close attention to the prevention and control work to speed up the blocking of the spread of the epidemic.

  At present, Shanghai has built more than 100 shelter hospitals with more than 160,000 beds. As the largest shelter hospital in Shanghai, the National Convention and Exhibition Center (Shanghai) shelter hospital welcomed the first batch of patients today (April 9), and other venues in this shelter hospital are also racing against time to construct and accept and deliver in batches.

  Since the outbreak, according to the principle of classified treatment, Shanghai has strengthened the medical treatment of COVID-19 patients. The special patients such as severe patients, children and pregnant women have been admitted to designated hospitals, while other light and asymptomatic infected people have been admitted to Fangcang Hospital. Today, the first batch of 16 people in Shanghai Putuo Cross-mining Center Fangcang Hospital have been verified to meet the discharge conditions. Since March, Shanghai has cured and discharged more than 10,000 people.

  In terms of living material security, Shanghai has strengthened its contact with major vegetable and pork producing areas, locked in local sources of goods, and allowed courier and other security personnel who were locked up in the community for non-epidemic reasons to return to their posts. In order to effectively curb the spread of the epidemic, Shanghai plans to carry out another full-scale nucleic acid test, analyze and judge according to the test results, and implement differentiated prevention and control by district and grade.

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How pure is love in movies?

"Meng Hua Lu" made the double-clean entry hanging on the hot search list out of the circle again.

 

As the most popular online drama in the first half of this year, Meng Hua Lu is also the work of "Fairy Sister" Liu Yifei, who has violated the small screen for many years, and has attracted much attention as early as the initial stage of the file. However, with the development of the plot, while the audience was screaming for candy, a line that Zhao Paner and Gu Qian Fan exchanged their hearts in the play caused controversy on the Internet.

 

In fact, in the context of ancient dolls, this line has no drama. In the play, when Qian Fan, the male customer, and Zhao Paner, the female host, confide in each other, the man mentioned that although he passed away, "he never had any little lady"; The woman also responded that with her predecessor, she was also "paying attention to the ceremony."

 

Drama marketing: Both parties care about each other, and they are innocent, which is a good match. However, as a film and television work adapted from Guan Hanqing’s Wind and Moon Saving the Dust, Dream of China Record has added a brand-new concept of "double cleanliness" after abandoning the core of the original story itself, which makes the whole work look like it has white suspended in the ideal.

 

Shuangjie is not necessarily a retrogression in love, but it also brings strict moral judgment standards. In the past, film and television dramas did not avoid mentioning the colorful past of the protagonist, but now these complexities have become a thing of the past. At the moment when the word "Shuang Jie" was widely known with film and television dramas, more viewers began to express their concerns. "Why are even film and television dramas beginning to reject complexity now?"

one

                          

fromPure love to double purity

The word "Shuang Jie" did not appear in recent years, nor did it become popular in recent years. It was only with the marketing and fermentation of film and television dramas that this word had a more well-known meaning. Literally speaking, "double purity" means that both men and women should maintain an innocent chastity standard in their feelings, which means that no matter how many predecessors they have talked about, they should be absolutely perfect when they meet the "the only thrill".

This constraint makes the audience who are used to watching relationships with men and women on TV a little uncomfortable, especially in front of a hot costume idol drama. The heat has brought controversy and split views. Judging from the public opinion on the Internet, the audience of Meng Hua Lu is clearly divided into two factions in dealing with the marketing of Shuangjie. One faction thinks that this is just a trend of the plot. The hero and heroine in the idol drama have never experienced the complexity of others, which is in line with the nature of sweet love. As for those voices that are not recognized, they are all water troops sent to discredit their families.

The other group of disapproving voices did not aim at the structure and direction of the story, but expressed their concern that the plot was too suspended today. Zhao Paner’s romantic rescue was originally a story about Guan Hanqing’s description of prostitutes at the bottom helping each other. Now, he has lost the word romantic and looked down on the prostitute. On the basis of Guan Hanqing, he turned the prostitute’s setting into a pure virgin musician who was forced to fall into the dusty family, but has been rehabilitated, abandoning the complexity of the characters and turning innocence into the biggest attraction of the whole drama.

Netizens’ Views on "Double Cleanliness" in Meng Hua Lu

As a fan of Liu Yifei for many years, Liuliu spent money to watch the whole drama as early as the official pre-order finale. In her opinion, "this play is not as bad as others say, but I still like it very much." However, she also recognizes that there are also cognitive defects in the direction of drama promotion. "In this age, it is definitely not appropriate to use Shuangjie for marketing. After all, two people will not see each other because they are clean. Besides, women are self-reliant, but it’s a bit ridiculous to say that in their thirties. Anyway, I personally am not satisfied with the drama party’s marketing with Shuangjie. "

Then why is it that although both sides are audiences, there is still an irreconcilable gap in the concept of double cleanliness?

As we all know, film and television drama is a profitable industry in the final analysis. How to get a higher audience rating, the first consideration of the drama side is what the current target audience wants to see most. In the past, the audience had the opportunity to see all kinds of stories on the TV screen, because at that time, the society was not dominated by conservatism, but by the openness transmitted by reform and opening up and western film and television. The audience can see the uncut Titanic in the cinema, and the Legend of Lv Buwei, which teaches women to fall in love, at home. And even Zhao Paner, who caused a heated discussion today, had a book of love that didn’t change its settings at that time.

With the development of the times, the young people’s views on love have changed greatly. Because of market preferences, a large number of double-clean novels have been born, which also breeds a soil full of topic enthusiasm for film and television dramas.

Strictly speaking, the appearance of double cleanliness has its inevitable historical causes. Mainland readers first came into contact with this word in the comment area of various female frequency novels (female channels) on the platform. As the mainstream type of love women’s works, the content of female frequency novels is mainly composed of different themes that describe romantic love, such as romance and beauty.

Different from the trend that women are often regarded as prey and resources in male frequency novels (male channels), female frequency novels usually carry the yearning and longing of female readers for their own love because they are oriented to women, so the change of love relationship in the works reflects the changes of readers’ mentality to some extent.

From the perspective of context, from the late 1990s to the early 20th century, popular novels once again occupied the commercial market. At that time, the domestic cultural industry was not yet mature, and most of the popular romantic novels in the market were imported from Hong Kong, Taiwan and Japan through piracy. In these novels, men usually appear in the image of rich experience and resources, while women are required to be innocent, fragile and innocent, waiting for salvation in order to get a happy love.

This disparity in social status and resources between men and women was often labeled as pure love and sweet pet in the early years, and the type of love that the overbearing president spoiled his wife once occupied the list of female frequency novels.

However, with the rise of feminism and the disillusionment of love myth, the concept of unilaterally demanding women’s chastity was quickly criticized by the new generation of readers. "Why should women be good?" At one time, it became the hottest topic in the novel criticism area, and then the same moral standards were added to the hero’s body. From novel criticism to early warning (note: explain the direction of the story in a brief copy and warn readers of possible problems in advance), and then it swept from the novel platform to film and television creation, becoming a hot topic among the whole people.

Guide to "Demining" in the Introduction of Jinjiang Novels

"The subtlety of Shuangjie is that it does have some progress, but not all." As a senior fan of online novels, Tata dabbles in male frequency and female frequency; No matter from comics, novels to beauty, everything is fine. She witnessed the changes of the internet atmosphere in the past 20 years, and also witnessed the whole process of the story of female frequency novels from complexity to purity.

In Tata’s memory, in early romantic novels, although there are hidden rules unilaterally demanding women’s innocence, they are not clear. As the story progresses, female characters will also have complicated experiences. The author doesn’t deliberately set characters for the sake of chastity, but it is more like "a selling point of the story, like the suffering of a virgin, because there were all kinds of stories at that time."

However, in the past decade, readers have become increasingly demanding on the requirement of chastity, but pure love seems to be not enough. "So there are many strange phenomena. In the past, when we read the rebirth article (a type in which the protagonist crossed back to his own life after death), there were often women who were miserable in previous lives and married by another man after rebirth, but now the author will directly emphasize that the’ past lives is clean in both places’ is a fake marriage, and the man is not married at all, waiting for his whole life.

Although it sounds outrageous, Tata admits that, as an irresistible trend in female-frequency novels, Shuangjie is occupying all kinds of creations on a large scale. For example, the most popular comedy film king of comedy in the past told the story of prostitutes getting love, but now the works with such complex characters are very difficult to judge, and the "clean society" composed of creators, audiences and censors can also be seen from Dream of China.

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From deviant to mainstream

There was a golden period of "deviant" in the domestic female frequency novel creation environment. While romance and beauty blossomed, the creators also deconstructed the traditional romantic love form to some extent.

 

In many love women discussions, it is often considered that as a literary genre, beauty-seeking can make female creators more free to expand their preferences after replacing the role of women with that of men. Especially, Taiwan Province and Japan, which were introduced into China as early pirates, were not domestic readers and did not take the commercial route. The author was more concerned about how to write his own ideas.

 

However, with the appearance of the business journal (publication) of Tanmei and the large-scale purchase of IP for film and television dramas, as more and more people pay attention to Tanmei, a sub-cultural group, the intensity of supervision and censorship has also increased simultaneously.

 

Unlike romance, which is more easily accepted by the mainstream public, the love story of Tanmei, as a double man, has its own boldness in challenging secular ethics. For the sake of better commercial development and being accepted and understood by the public, Tanmei has gone through a stage from "letting a hundred flowers blossom" to being close to mainstream values, which requires the sexual singleness of both parties to gradually form a trend, and thus 1v1 and Shuangjie are produced.

 

"I like Shuang Jie very much. I read the article and see if the author has marked it. I think it’s okay. Isn’t Shuang Jie a personal preference? The author can also mark it as not double-clean, then I won’t click in to see it, which is good for everyone. " Reader Niki has read female frequency novels for many years. In her impression, in the past Jinjiang (Jinjiang Literature City) gold list novels, the greatest passion of men and the single-mindedness and fragility of women are the favorite descriptions. This contrast sometimes makes her feel uncomfortable. "I don’t quite understand what people who want to attack Shuangjie think. Is it worthy of pride to like a person who engages in seven tricks?" What I want to see is just pure love, and two people can be one person for life. "

  Discussion on "Double Cleanliness" by Netizens

In Niki’s view, Shuangjie has created a vacuum but pure emotional space. "Being faithful to one’s heart" is no longer a rigid requirement for women/recipients, but a moral code that both parties in love must abide by. For women who are still at the bottom of emotional relationship in real life, it is not only a spiritual sustenance, but also a great progress.

 

On the other hand, readers who don’t approve of double cleanliness, such as conch, think that "this is a great retrogression. After all, the word’ cleanliness’ will be used to describe sexual behavior, which in itself is considered unclean, which runs counter to the meaning of women’s liberation. Who wouldn’t fall in love with a few scum in this world? If you have the luck to meet true love as soon as you fall in love, the probability is very small, but in the context of double cleanliness, you can prove that you are unclean, which is unreasonable. "

 

However, the incomprehension between the two sides still only stays in the stage of online debate, and the scope involved is only between women. "After all, many female-frequency novels are women, and men really read double essays?" Conch asked, "isn’t that what women are imagining for men’s chastity?"

three

                                        

Will struggle with the audience of Shuangjie,

Not the core audience of ancient dolls

However, no matter how the pros and cons understand Shuangjie, it is undeniable that the environment has made its own choice. From the content of radio and television that "polygamy is not allowed" to the overwhelming reminder of "Shuang Jie" in female frequency novels, it has been shown that "Shuang Jie" has occupied a place in mainstream values.

 

Lucy, as a drama propaganda for many years, is also deeply touched by this. Today’s drama propaganda can’t bring negative effects, and it needs to be healthy and upward. As a colleague, she commented that the publication of Meng Hua Lu is smart, "it caters to the awakening of feminism at present, for example, using the slogan’ Women are more independent’ to talk about how the eldest woman gained love, money and social status through her own efforts."

 

In her view, whether it is the popular "Big Lady" in previous years or "Shuang Jie" who is arguing now, it is actually interpreted from the perspective of women’s power. "The former may be that women have obtained various resources through men and achieved themselves, just like all kinds of male cool routines, men can, why can’t women? As for the latter, women have the confidence to ask men to keep their virginity, and they can only ask each other when they are strong, so many people eat this set. "

 Discussion on "Double Cleanliness" by Netizens

People who will struggle about whether Shuangjie has brought about retrogression, most of them are not the audience of costume idol dramas, especially a drama with the love of handsome men and beautiful women as its core selling point. "Because in my opinion, no matter what this drama is about, we will extract a core that the public will love when we promote it. That may be a key slogan for the propaganda team of Dream of China, and whether Shuangjie has brought controversy to the market.

 

We can’t expect popular cultural products to carry too much ideological education, just like the conspiracy to promote the convergence of creative types is not just to see a clean audience. Xiaobai, a net writer for many years, is deeply touched by this. "In fact, in the early years, everyone wrote about beauty for love and power generation, which was purely their own love, but later the whole environment became more and more commercialized. Some people sell IP to earn money ashore, and some authors who used to write beautiful stories ran to write romances. Coupled with the emergence of platform VIP subscriptions, readers and authors have interests, so it is inevitable to make some compromises. "

 

"In the past, authors didn’t really care too much about readers’ feedback to change the plot settings, but now they can’t. Readers will directly ask if you are clean. Sometimes, if there is no target, readers may get angry and feel cheated when there is a link in the subscription chapter." Speaking of this, Xiaobai also said with a wry smile: "No way, sometimes it is reported, so it may be difficult for the work to be locked and rectified."

 

"In fact, double purity can also be regarded as the rise of conservatism," Tata said. "In a conservative environment, chastity is beneficial to women. In common online writing routines, women married single-minded Gao Fushuai through their purity, kindness, beauty and virtue, and got a class promotion. But for them, everything else is dispensable, and only chastity is the easiest to achieve. This is also a psychological comfort zone. "

 

Stills of "Love Collection"

Whether double cleanliness brings progress or retrogression is an issue that is difficult to clarify in the current environment. It seems to have brought some awakening, but on closer examination, "in the past, people were allowed to love the wrong person or do something wrong, but now these spaces have all disappeared, as if more shackles were put on each other."

 

But only one thing is certain. Under the influence of the consumer market, the topics that can bring topics and heat will not disappear quickly, regardless of whether the deconstructionism that the creators thought in the past still exists, it will gradually disappear with the process of commercialization. Love is still being praised, and double purity is just another narrative technique under the romantic framework.

Written by: Teacher Yan

                                        

— THE

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Today’s Film Review | Why is it difficult for the "Twist" actors to take over Shen Teng?


Special feature of 1905 film network From stage plays to movies, the label Mahua FunAge has become the first choice for many audiences’ comedies, and the representative figure among them has now been upgraded to "box office koi fish", and all films in which he plays can get quite good box office results. In addition to Shen Teng, other actors who came out of Mahua FunAge also began to emerge. They are called "Twist" actors, and recent and upcoming films are all performed by "Twist" actors.



Comedy is a very challenging type. Whether it is the creation of comedy atmosphere, the polishing of punchline and proper limit’s handling, it takes a lot of effort. Shen Teng has a profound skill in this respect. He is the flag bearer of Mahua FunAge and a well-deserved synonym for the "Twist" actor. At present, the other representatives of the "Twist School" are "Wei Chang Ai Cai", who are four people. At present, they have not yet become the Mesozoic standard-bearers of domestic comedies. Why is it difficult for "Twist" actors to take over Shen Teng?



From the strength point of view, Wei Xiang, Chang Yuan, Allen and Huang Cailun are all actors with eighteen kinds of martial arts. They can control stage plays, movies and sketches, and there is no problem in their strength, but their current performance is still difficult to satisfy the audience. Tan Fei, a film critic, said: "There are various reasons, some are luck, some are works, and some are unclear in style." The specific situation of several actors should be treated separately.



The first is Wei Xiang, who starred in a more important comedy film "The Killer is Not Too Cold" in the Spring Festival file. In previous works, he always showed people with his ugly little image, usually as a supporting role. Wei Xiang’s performance is very grounded, with the texture of life, but if he wants to play the leading role, his performance needs to be more penetrating and have his own style. Before he can prove his resume, the audience will be worried and unconvinced about his performance.



Chang Yuan has been learning crosstalk since he was a child, and he has a certain skill in Quyi. However, it is actually difficult for a crosstalk performer to transform into a comedy film actor, because crosstalk performances are usually performed in one place, and film performances need to be integrated into the scene. The training of cross talk performance brings a sense of orderliness to Chang Yuan’s performance, which is more obvious in Warm Hug. After Mahua FunAge’s training, Chang Yuan has made some progress in this respect, and its relaxation can be seen in Li Mao’s performance as a prince. From Chang Yuan, we can see more possibilities and greater explosive power.



Allen usually appears on the screen as a simple and honest man. In popular words, he mostly plays "Iron Handy", such as Da Chun in the movie. His gender exchange in the film is eye-catching, which is one of his few self-challenges. After that, most of the films he starred in returned to the image of honest people he is good at and returned to the comfort zone. The image of an honest man is usually difficult to create more, and his performance is still in a changing process from blunt to completely relaxed. More audiences still hope that he can "upgrade" and make different attempts.



Huang Cailun’s performance in the stage play was excellent, and his performance was also impressive in the previous stage. However, there is a certain difference between stage play and film. After Huang Cailun came to the big screen, he still had the habit of stage play performance, which was too exaggerated compared with the film performance, making it difficult for the audience to enter the play. In addition, Huang Cailun took on too many plays and lacked certain screening, so the quality of the films performed was not good, which left a certain negative impression on the audience.



The current coffee spot of Wei Chang Ai Cai is not enough to obtain better resources. There are opportunities and their own reasons. Compared with other twist actors, Shen Teng has several important advantages. First, in terms of performance skills, Shen Teng is quite confident and exudes a sense of relaxation at any time and place; In terms of creativity, Shen Teng has been challenging himself. In the trailer that has not yet been released, we can also see a different Shen Teng; Most importantly, Shen Teng has a strong empathy ability. He can fully understand the joys and sorrows of the role, which is a rare talent for any actor.



Comedian is a very challenging profession. Only by performing naturally from the inside out can the audience in front of the screen smile. Comedians need to understand and love life very much, and the road to improvement is quite long. How many books they have read, how many roads they have traveled and how many people they know will be transformed into nutrients for comedy performances and add to the charm of comedians. I hope that in the big screen in the future, we can see more independent "Twist" actors.


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Egypt will not accept Palestinian refugees. WHO warns that the situation in Gaza is getting out of control.

  King Abdullah II of Jordan said during his visit to Germany on October 17th that Jordan and Egypt would not accept Palestinian refugees from Gaza. Egyptian President Seyce also said a few days ago that Egypt does not agree to transfer Palestinian refugees to Sinai Peninsula.

  At a news conference with visiting German Chancellor Angela Scholz, Sethi said that the Israeli action of cutting off electricity and water in the Gaza is "a means to forcibly transfer Palestinians to Sinai Peninsula", which Egypt firmly opposes. Sethi stressed that all parties should make every effort to advance the Palestinian-Israeli peace process and come up with a "feasible" solution.

  King Abdullah II of Jordan also stressed earlier that the conflict between Hamas and Israel must not be borne by others, and it is necessary to find a political prospect that can bring Palestinians and Israelis together and enable Arabs and Israelis to work together, otherwise the cycle of violence will continue.

  Tedros Adhanom Ghebreyesus, Director-General of the World Health Organization (WHO), posted a warning on the social platform "X" (formerly Twitter) on October 18th that the situation in Gaza is "out of control" and WHO supplies have been stranded in the border area for four days. Tan Desai called on all parties to immediately stop the violence and allow relief supplies to enter Gaza.

  At present, Rafah Port, which is located at the junction of the southern Gaza Strip and the Egyptian Sinai Peninsula, has not been opened, and it is also the only land passage in the Gaza Strip that is not controlled by Israel. Egyptian sources and witnesses revealed on October 17th that hundreds of trucks loaded with medical supplies, food, blankets and other humanitarian aid materials are waiting in line at the Egyptian side of Rafah Port in Gaza.

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Talk about "cultural differences"

  Generally speaking, Swiss people will wait patiently if they need to wait in line to buy things or do things. The people in front ask endless questions and dally, and the people in the queue behind are used to it. Everyone slowly comes one by one. For example, at the front desk of a hotel, the person behind the queue can’t think that the front desk staff is slow, because he must first meet all the requirements of the guest in front of him. When someone cuts in line or asks the person in front to hurry up, the hotel service staff may be unhappy and even criticize you and refuse your request. There is another difference. In hotels in China, service personnel always ask their superiors for instructions when making decisions, but not here, especially the front desk staff, who have great autonomy, so they are confident, sometimes a little arrogant and even self-righteous.

  Bao Ximeng, who is in charge of the China market in the Swiss National Tourism Administration and has lived in China for eight years and speaks fluent Beijing dialect, said that the difference between the Swiss service staff and the service staff in China is that he will tell the guests bluntly if he has any dissatisfaction, including his dissatisfaction with the guests. His psychology is that I am in charge here! The status of service personnel in Switzerland may be different from that in China. They will never consider themselves inferior, bow and scrape, and feel inferior. So, if the consumer doesn’t respect him, he will fight you back! Instead of "the customer is always right" (or at least verbally), as the service staff in some countries do, I have nothing to do with myself.

  Of course, there is another reason. Because of the high labor cost, most of the tourist service agencies in Switzerland have limited manpower, and the ratio of service personnel to guests cannot be exactly the same as that in other countries.

  A general manager of a Swiss Chinese travel agency who has received many tourists from China also mentioned that China tourists call the waiter to come and serve as soon as they sit down in a Swiss restaurant. This is "different" in Switzerland, where guests are usually waiting for the waiter to come over and ask for various requirements. This may not be right or wrong, but without understanding this background, contradictions and even conflicts will easily occur. Also, China tourists generally speak louder, which has been criticized. Frankly speaking, this is mainly due to our strong spirit of self-criticism. Bao Simon said, in fact, this is not a big problem. He said, I have my own Mrs. China, and I have become louder. In addition, some Europeans speak louder, such as the Dutch.

  Perhaps these misunderstandings and estrangements caused by China tourists’ inadaptability and unaccustomed in Switzerland are the so-called "cultural differences". However, if we look beyond this "cultural difference" and look at these trivial "contradictions and conflicts" that are often encountered in travel life, perhaps we should also mention another concept, which might as well be called "education".

  For example, an "educated" person in a restaurant accustomed to "guests greet waiters", waiting for the waiters to take the initiative to serve, then he may really wait for a long time. Similarly, a guest who thinks this is just a "cultural difference" and uses it as an excuse to yell at the waiter in a restaurant will only be considered uneducated. In fact, the "when in Rome, do as the Romans do" summarized by our ancestors is really "educated". If you don’t know what to do,-then you can quietly see what others do! Don’t shout until you understand it. This is "education".

  Ms Paula, general manager of Lekrone Hotel, a high-class hotel in Valais, said with tolerance and grace that China tourists’ learning and adaptability should be encouraged. She said that when China guests came to her hotel to stay and eat, they used to have to eat Chinese food, but now they are gradually accepting western food. But it is generally hoped that all the dishes, such as the first dish and the main course, will be served together, and the speed will be fast. "But they are also observing, quietly watching what others do, and then following suit."

  Mr. Remo, who is in charge of marketing and sales in Interlaken Tourism Bureau, the most visited Swiss city in Chinese, said that China market is the largest international tourist market in this famous tourist city at the foot of Girl Peak. In order to meet the needs of these guests, they consider the needs of China tourists in every aspect of tourist reception, such as hotel facilities, restaurants’ catering and Chinese menus, Chinese shopping guides at shopping spots and so on. And the various tourism products they have launched are also trying to meet the needs of this market from all angles. But even so, there are still some problems that can’t satisfy China tourists. For example, unlike its neighboring countries, Switzerland uses the euro, but here it uses the Swiss franc. This may cause a lot of inconvenience to tourists who travel in many countries in Europe. Mr. Steven, who is responsible for the sales of Swiss-largest infant milk powder "Yarui Milk Powder" in European duty-free shops, is trying to conduct an all-round investigation on the needs of China tourists, hoping to meet their needs as much as possible and avoid misunderstanding due to ignorance.

  Of course, from another perspective, "cultural differences" should not be an ostentatious excuse to ignore or attach importance to "education", a shield to muddy the water or a fig leaf of ostrich policy, and vice versa. The concept of "customer is God" should have been deeply rooted in people’s hearts long ago, and it should be acceptable regardless of whether it is educated or not, no matter how different cultures are. If his "education" conflicts with this concept, it doesn’t matter. Market, sales, supply and demand, cost performance and so on will definitely teach him in the end.

  Bao Simon said that no country’s government has educated its citizens to travel so seriously and earnestly. Can you imagine the French government asking French tourists not to travel abroad in this way or that way? According to the tradition of the French people, they will definitely oppose the government: I will do what you don’t want to do! Bao Simon said that it is rare for China tourists to spit everywhere now. This is of course related to the continuing education of the China government. Bao Simon also said that from another angle, isn’t it cultural differences that tourists are looking for when they travel abroad? No difference, no attraction. It is normal and good to have differences.

  That is to say, we should experience, understand, respect and finally tolerate "cultured", consciously and actively, instead of always trying to change "differences". That’s a summary, right? (He Nong)

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"Star Project" blooms with spring flowers in Yuhang Wuchang to create a "district-oriented" industrial community model

In the spring of March, Yuhang is full of flowers, and the "Star Project" of Haihui Community in Wuchang Street also blooms with the spring flowers. Following the successful construction of the industrial community of Beida DreamWorks last year, recently, Haihui Community of Wuchang Street has managed all the 19 industrial parks covered by its jurisdiction as industrial communities, and the "industrial community model" has blossomed, transforming the party’s organizational advantages into the effectiveness of good governance in the park, and fully promoting the high-quality development of regional economy and market players.
Wuchang Street Park, located in the Science and Technology Innovation Corridor in the west of the city, has many enterprises and countless young talents. The "Star Project" is a further attempt by Wuchang Street to build an industrial community from point to surface.
Talent activities
The plan centers on the four parks of Beida DreamWorks, Huiyin Center, Future park and Party School of the Provincial Party Committee in Haihui Community, and is divided into four industrial areas such as Huimeng Galaxy, Huiyun Galaxy, Huizhi Galaxy and Huicube according to the four industrial themes of scientific and technological innovation, technical innovation, anchor industry and academic research. Each area will be equipped with an industrial community service center and a regional group organization structure.
With Party building as the axis, the industrial communities in each district will implement the rotation mechanism of Party building activities, open a public welfare market in party member, and set up a "party member Talent Pool" according to party member’s specialty to develop all kinds of talent resources. At the same time, using digital means, the industrial community focuses on the growth needs of small and medium-sized enterprises, covers the whole community with the enterprise code Wuchang area, and actively and accurately matches and pushes various policies, subsidies, and early warning tips for abnormal risks of enterprises. In addition, the industrial community has also opened up an exclusive space for the industrial community in the park, established a one-stop "enterprise help desk", and built a highly viscous and dynamic "activity network" in the park by relying on the online service system of Wuchang "Little Neighborhood" residents.
Enterprise service
"Our goal is to achieve full coverage of the industrial community model in Wuchang and become a demonstration benchmark for the construction of industrial communities in streets and even Yuhang District." Hu Ping, member of the Party Working Committee of Wuchang Street, said. In the next step, Wuchang Street will further empower the industrial community, strengthen digital means, and integrate service positions, so that the industrial community model will go deeper and deeper, and continue to explore new paths for party building to lead park governance.
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United states secret service found suspicious powder in the White House, which was initially identified as cocaine.

  On the evening of July 2, local time, US Secret Service officials found unknown white powder in the work area of the West Wing of the White House, which led to the short-term closure of the White House. Law enforcement agencies in the United States said that preliminary field tests on the powder found in the White House showed that cocaine was positive. After that, the White House reopened soon and the powder was sent away for further testing.

  According to Washington Post’s report on July 3rd and 4th, after testing the unknown powder found in the West Wing of the White House, a fireman of the Hazardous Materials Group in Washington, D.C. broadcasted the test results by radio, saying that the identification results showed that the powder was cocaine.

  美国缉毒局表示,本名为苯甲酰芽子碱甲酯的可卡因,是美国《管制物质法》(The Controlled Substance Act) 中的二类药物,它是一种强烈的兴奋剂,且具有很高强度的成瘾潜力。

  发现粉末的白宫西翼工作区域与美国总统拜登居住的行政官邸相连。 每日,数百人在西翼出入工作。区域内设有椭圆形办公室、新闻区、总统工作人员办公室等工作场所。

  特勤局发言人安东尼·古列尔米(Anthony Guglielmi)称,他们正在“调查该物质进入白宫的原因和方式”。他说,华盛顿消防部门十分确定,此物质如不吸食,不会产生致命危险,也不会构成威胁。

  另据《卫报》7月4日报道,此次并非毒品第一次进入白宫。历史上有许多歌手、演员也私自携带违禁物品进入白宫。

  据半岛电视台7月4日报道,事件发生期间,拜登 (Joe Biden) 以及家人并不在场。拜登和家人于6月30日前往位于美国马里兰州总统休假地的戴维营度假。同一周末,拜登向全国教师工会发表讲话,并准备烧烤活动以纪念美国独立日。

  报道称,拜登已于7月4日回到白宫。