How to Adjust Notebook Screen Color

There are many parameters that affect the display effect of notebook screen, such as resolution, refresh rate and color gamut. Generally speaking, the notebook with better screen quality will be more expensive. If you are not satisfied with the display effect of the new laptop screen, you might as well try to manually adjust and optimize it through the system and driver settings.Many notebook screens feel uncomfortable, either yellow or blue, or the white display is not pure enough, and the details in the dark background picture can not be seen clearly.In this case, we can alleviate it by calibrating the display (note that it is only mitigation, which is strongly related to the quality of the panel). Enter "color management" in the search box of windows 10, switch to the "advanced" tab in the color management window, and click "calibrate display".

How to Adjust Notebook Screen Color 1

In the display color calibration window, click "next" continuously according to the prompt to enter the interface for adjusting gamma value. Gamma defines the mathematical relationship between the red, green and blue values of the display and the final amount of light emitted by the screen, which can alleviate some display problems mentioned above to a great extent.The problem is that when adjusting gamma, you need to use the button on the front of the display panel to fine tune it through the OSD setting interface. However, there is no setting button on the notebook screen. At this time, how to accurately adjust parameters such as brightness and contrast?For notebooks equipped with intel core processors, right-click on the desktop to find and enter Intel graphics card settings; For notebooks equipped with AMD processor, you can use the same method to find and enter the "amd graphics card control panel", where you can set more advanced screen parameters.

Taking Intel platform notebook as an example, enter the control panel of Intel super core graphics card, and you can adjust parameters such as brightness and contrast in "display color setting".Arrange the windows 10 system display color calibration window and the Intel graphics card control panel side by side. According to the instructions of the former interface, continuously fine tune the brightness and contrast on the latter interface until the best display state prompted by the interface is found.Next, the display color calibration of windows 10 system will enter the "color balance" window, and fine tune the red, green and blue sliders according to the interface prompts, which can make up for the color deviation of the notebook screen panel to a certain extent.

So far, the manual color correction of the notebook is over. We can switch between the previous state and the current state with one button. If you are more satisfied with the display effect after correction, click OK. If you are not satisfied, you can repeat the above process until you find the most comfortable point for your eyes.

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The Display Screen of a Typical Stop-start Control Chip and Matters Needing Attention
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Panasonic's vision for the future of autonomous driving is complete with surface-top 4K tablet displays, smart materials, and augmented reality.The firm revealed its Autonomous Cabin Concept at CES in Las Vegas, showing how driverless cars could soon allow your vehicle to be just like your living room.The concept not only aims to make the passengers' experience more enjoyable, but they say it could also make mobility much safer.Scroll down for video Exhibitors from Panasonic Europe at CES told Dailymail.com that the futuristic technology on display could be integrated into any autonomous car.Inside of the sleek model showing off the Cabin Concept, the exhibitors demonstrated the large, four-tablet table that could sit in the middle of a vehicle.Each display screen is roughly 20 inches wide.This would act as the main interface, exhibitor Roberto Vecciu told Dailymail.com, and would be 'where all the information flows.' The system combines 'infotainment' with connectivity, and each individual panel can be used on its own - or, a family on a road trip could open up a four-player game and all play at once.As it would work in a fully autonomous system, the 'driver's seat' is turned around to face the back of the car, as is the front passenger's seat.With this design, four passengers can sit around the large table in the center.On a long trip, kids could use individual screens to stream videos or music, while parents could check emails and do work, he explained.But, it has safety purposes as well.The screens would display any incoming alerts detected by the outside sensors, allowing the passengers to be aware of any potential hazards on the road.Along the side, the concept car also featured a stunning LED display, which the exhibitor explained could be fine-tuned to meet the needs of the passengers.A smart disk placed on one of the screens works like a knob, and when turned, it could be used to change the LED lights and brightness level or adjust the interior temperature, for example.The car even comes with a smart metal cup in the cup-holder, which can reveal different properties - like calorie count - about what's inside of it, when placed on one of the display screens.All of the technology inside is essentially ready to go, the exhibitors explained, and now only waits on a fully autonomous vehicle that could host it.According to Panasonic Europe, the design could one day make 'traveling in the autonomous car of the future as fun and as important to everyday life as a smartphone is today.'
Teach You How to Choose the LED Display Screen of the Hotel
Teach You How to Choose the LED Display Screen of the Hotel
What should we pay attention to in the selection of LED display in hotel banquet hall? Generally, in the indoor environment, the screen area will exceed 3 m2. Therefore, in this case, there are three options: ordinary rear projection, DLP (digital liquid crystal rear projection) and LED display.The advantages of ordinary rear projection display screen are small pixels and high definition. The disadvantages are low brightness, small viewing angle and short lens lamp life (only a few thousand hours). DLP has the advantages of small pixel points and high definition. The disadvantage is that it has seam. At present, the minimum seam can reach 1mm. Rear projection and plasma display screens are suitable for close viewing. For Maipu Guangcai indoor LED display, the advantages are high brightness and no seam, while the disadvantages are coarse pixel particles and low definition. At present, the economic model of commercialized indoor full-color LED screen is p5p6, and other models include p3p4p7.62p8. LED display screen is suitable for indoor places with long viewing distance.When selecting LED display in banquet hall, the following aspects can be considered:1. Die. Like the outdoor full-color LED screen, it is generally recommended that the LED of the indoor full-color display screen adopt the LED encapsulated by Maipu brilliance, and the tube cores of Japan Riya and Cree of the United States are recommended for high-end products.2. Packaging form. The advantages of surface mount packaging are large viewing angle, good luminous consistency and easy automatic welding processing. It is the mainstream product of full-color screen.3. Density. Due to the large heating capacity of indoor full-color LED chip and high density of control circuit, the point density of commercial full-color screen can not be very high. Hotel Maipu Guangcai LED display manufacturer4. Drive mode. The driving mode of indoor Maipu Guangcai full-color LED screen is constant current driving and adopts dynamic scanning mode (mainly 1 / 4, 1 / 81 / 16 and other scanning modes).5. Refresh rate. Improve the refresh rate, and there is no flicker and tailing when shooting with the camera.Other considerations include the scale and brand, price, purpose, installation location and environment of LED display manufacturers. The above are some suggestions on the selection of LED display in hotel banquet hall.fqj
Various Specifications and Parameters of LED Electronic Display Screen
Various Specifications and Parameters of LED Electronic Display Screen
key word:LED, parameter, display screenNote: the video screen can display video signals in real time, such as pictures, animation, video, TV programs, etc., but it cannot be displayed offline; Select different LED lamps according to different environments, with different viewing angles and brightness; The calculated display surface and brightness are different. f --- indoor screen; P --- outdoor panel; S --- monochrome picture and text screen; D --- dual color screen; V --- two color video screen; T --- full color video screen; T * * chip --- full color video screen for surface pasting; H --- super highlight.No Product code Pixel diameter Pixel spacing point Pixel composition Colour Unit composition Brightness Horizontal perspective one vp20 16.0mm 20.0mm 2500 points / m2 2R4YG Bicolor 48x32 points 4500nit 60 two vp20 19.0mm 22.0mm 2066 points / m2 3R6YG Bicolor 24X32 points * 48x64 4000nit 60 three VP31.25 26.0mm 31.25mm 1024 points / m2 4R12YG Bicolor 24X32 points 4000nit 60 four TP14 12.0mm 14.0mm 5102 points / m2 2R1G1B Full color 48x64 points 6000nit 60 five TP16 14.0mm 16.0mm 3906 points / m2 2R1G1B Full color 48x64 points 6000nit 60 six TP20 16.0mm 20.0mm 2500 points / m2 2R1G1B Full color 48x64 points 5500nit 60 seven TP22 19.0mm 22.0mm 2066 points / m2 2R1G1B Full color 48x64 points 5000nit 60 eight TP22 19.0mm 22.0mm 2066 points / m2 3R2G1B Full color 48x64 points 7400nit 60 nine TP25 22.0mm 25.0mm 1600 points / m2 2R1G1B Full color 24X32 points * 48x64 5500nit 60 ten TP31.25 26.0mm 31.25mm 1024 points / m2 4R2G1B Full color 24X32 points 5000nit 60 Indicator parameters of LED Expressway display screenNo Product code Pixel Spacing Density Pixel composition Colour Unit composition Brightness Horizontal perspective one hwp20 16.0mm 20.0mm 2500 points / m2 2R1G1B2R1G Full colorBicolor 24X32 points 7000nit 45 two hwp20 19.0mm 22.0mm 2066 points / m2 2R1G1B Full color 24X32 points 6500nit 45 Main index parameters of LED graphic screenNo Product code Pixel Spacing Density Pixel composition Colour Unit composition Brightness Horizontal perspective one SE3.7 DF3.7 3.7mm 4.75mm 44444 points / m2 R/1R1G Single / two color 24X48 points24x72 points32x80 points 150/110nit 80 two SF5 5.0mm 7.62mm 17241 points / m2 R Monochrome 16x80 points32x80 points 130nit 80 three SHF5 5.0mm 7.62mm 17241 points / m2 R Monochrome super bright 32x80 points 800nit 80 four SP10 DP10 8.0mm 10.0mm 10000 points / m2 4R2R2YG monochromeBicolor * 2200nit 60 five SP16 DP16 15.0mm 16.0mm 3906 points / m2 4R2R2YG monochromeBicolor * 3400nit 60 Note: the graphic display screen features that one computer can control several screens, which can be networked and displayed offline.Main indicators and parameters of LED indoor video screenNo Product code Pixel Spacing Density Pixel composition Colour Unit composition Brightness Horizontal perspective onetwo VF3 VF3.7 3.0mm3.7mm 4.0mm 62500 points / m2 1R1G Bicolor 64x64 points 160nit 80 4.75mm 44444 points / m2 1R1G Bicolor 32x64 points 120nit 80 three VF5 5.0mm 7.62mm 17241 points / m2 1R1G Bicolor 32x64 points 80nit 80 four VF8 8.0mm 10.0mm 10000 points / m2 1R3YG Bicolor 48x64 points 1900nit 60 five VF10 10.0mm 12.0mm 6944 points / m2 1R3YG Bicolor 48x64 points 2400nit 60 six T**chipF5 5.0mm 7.625mm 17212 points / m2 Table paste 3 in 1 Full color 48x64 points* 3000nit 80 seven TF8 8.0mm 10.0mm 10000 points / m2 2R1G1B Full color 48x64 points* 2500nit 60 eight T**chipF8 8.0mm 10.0mm 10000 points / m2 Table paste 3 in 1 Full color 48x64 points* Riya: 3500nitSiemens: 2200nit 80 nine TF10 10.0mm 12.0mm 6944 points / m2 2R1G1B Full color full color 48x64 points* 2200nit 60 ten T**chipF10 10.0mm 12.0mm 6944 points / m2 Table paste 3 in 1 48x64 points* Riya: 2430nitSiemens: 1530nit 80
Do You Know the Ten Factors That Affect the Display Effect of Notebook Screen
Do You Know the Ten Factors That Affect the Display Effect of Notebook Screen
In the process of using notebook, whether the screen looks "comfortable" is very important, and there are many factors affecting the screen display effect. In this paper, we will comb them one by one.Screen sizeAt present, the common sizes of notebook screens include 11.6 inches, 13.3 inches, 14 inches, 15.6 inches, 16 inches and 17.3 inches. If you often go out with a notebook, please give priority to the notebook with a size of 14 inches or less; If you usually put your notebook in a fixed place such as home, office or dormitory, products with a size of 15.6 inches or larger can make you see better.display scaleThe display ratio of notebook screen is mainly 16:9 and 3:2, both of which are 14 inch notebooks. The screen with 16:9 display ratio can make the fuselage thinner and more suitable for watching video; The screen with 3:2 display ratio can shorten the length of the fuselage, reduce the width of the upper and lower borders of the screen and improve the proportion of the screen. This display ratio is also more suitable for office, and one screen can display more content.resolving powerThe higher the resolution of the notebook screen, the finer the picture will be displayed, but it will also bring problems such as too small text and icons. You need to use the "zoom" function of windows 10 display settings to zoom in to 125% 150% to see clearly. For the vast majority of ordinary users, the resolution of FHD level is sufficient, and the resolution of more than 2K is more suitable for professional design and graphics workers.Refresh rateThe standard refresh rate of notebook screen is 60Hz, and a few game books will be equipped with screens with refresh rates of 120Hz, 144hz or even 240Hz. These ultra-high refresh rate screens are often called "E-sports screens" by game players, which can effectively reduce the problems such as blurring and tearing of dynamic pictures, and make the game experience more smooth and smooth. If you like playing large 3D games, it is necessary to choose a game book with 144hz refresh rate screen and gtx1660ti or higher independent graphics card.Screen materialNotebook screen can be divided into LCD and OLED according to material. Among them, the LCD screen includes TN panel and IPS panel. The former has the lowest cost and has the problem of low visual angle (mainly in the vertical direction). When the angle is large, the screen will be color biased and white. The advantage of IPS panel is that the viewing angle is higher, ranging from 170 degrees to 180 degrees. At present, most of the screens of notebooks with a price of more than 4000 yuan are equipped with IPS panel.TN screenIPS screenOLED material screen has the advantages of rich colors and higher contrast. It hardly consumes power when displaying pure black pictures. The combination of black desktop and dark background is conducive to prolonging the battery life of notebook. However, the cost of OLED screen is very high. In the notebook field, only a few products with more than 10000 yuan have hunting clothes, which belongs to the patent of top equipped notebook.GamutColor gamut affects the restoration of color on the screen. The higher the color gamut means that the screen color display is more accurate and more comfortable. At present, the color gamut of notebook screen is generally dominated by 45% NTSC, 72% NTSC and 100% sRGB. Among them, 45% NTSC has the highest popularity and the worst color performance. Both 72% NTSC and 100% sRGB belong to "high color gamut". They have the same theoretical effect, but 100% sRGB is more suitable for people engaged in professional image design.High color gamut screen is just needed by users engaged in design workFog screenEarly notebook screens had "fog screen" and "mirror screen", both of which were directly "exposed", but the "mirror screen" added a layer of coating on the surface of the screen panel, forming a mirror like effect, which looked very high-grade. However, this mirror effect has serious reflection problems. Both sunlight and light will affect the normal viewing of the screen. Therefore, almost all new notebook products listed in recent years are "fog screen".Glass coverIn addition to notebooks that support touch operation, there are many lightweight notebooks that are covered with a layer of glass cover on the surface of the screen panel, which can protect the screen and make the machine look more high-grade. However, the protective glass will increase the weight of the whole machine and bring some reflection problems. It belongs to the advanced version of the "mirror screen" in the past.Anti glare coatingEven the "fog screen" also has a certain degree of reflection. Therefore, many notebooks now add an anti glare coating on the surface of the screen panel (or protective glass), which can further reduce the refraction of light and maximize the sensory experience of using notebooks outdoors (under lights).Replace screenMost laptop screens are removable. If you are not satisfied with the screen color or resolution, you can buy the screen panel on Taobao, and then replace and upgrade it yourself.Nowadays, most of the new notebook screen panels use EDP interface, but the interface has the difference between single channel and dual channel. The latter has 30pins and can support higher resolution signals. If you need to upgrade the screen in the future, be sure to confirm in advance whether the notebook is compatible with the (New) screen panel.
Analysis of Market Development Trend of Small Spacing LED Display Screen
Analysis of Market Development Trend of Small Spacing LED Display Screen
In recent years, small spacing LED display screen has developed rapidly, which has the trend of sweeping the whole LED display industry. After the indoor small spacing, outdoor small spacing has gradually become a market hot spot for many LED display manufacturers. Previously, the industry predicted that the market scale of outdoor small spacing LED display screen may reach 100 billion in the future. This assertion is like thunder on the ground, which makes people excited and nervous.From the new product release trends of major industry exhibitions and LED display manufacturers in the industry, the point spacing record of outdoor applications has been refreshed again and again, and all enterprises have tried their best to seize a place in the blue ocean market of outdoor small spacing. It is understood that at present, the small outdoor spacing of jrcld Jingrui Chuangxian has exceeded p2.6, and there have been corresponding application cases. At the same time, many leading screen enterprises in the industry also began to develop in the direction of small outdoor spacing. The person in charge of an industry enterprise once said that the outdoor small spacing will reopen the outdoor and semi outdoor digital Notice market that the LCD splicing screen has failed to start effectively, and will create an emerging market of nearly 20 billion yuan in the domestic outdoor / semi outdoor small advertising screen market. This shows how attractive the outdoor small spacing LED display market is!The development of small outdoor spacing to p2.5 and even P1.2 is an inevitable trend in the future. With the advent of the new retail era, the outdoor commercial display market is constantly exploding. For example, advertising machines, bus stop boards, advertising windows and other display platforms in close contact with people. If we want to achieve good interaction between the content information of LED display screen and the audience, whether P8, P6, P4 and P3 can not be satisfied, the intervention of J small spacing is inevitable.Driven by the market demand of outdoor commercial display, outdoor small spacing LED display has a considerable market development space. At the same time, with the superposition and use of screen interaction technologies such as infrared induction, face recognition, touch, 3D and VR / AR, the outdoor small spacing LED display becomes more vivid. With the support of these interaction technologies, Jingrui Chuang shows that the development prospect of outdoor small spacing LED display is very promising.Of course, there are still some technical difficulties in outdoor small spacing. For example, it is difficult to solve the problems of glue filling and plastic parts kit, and the cost of using metal kit is too high... In the second half of 2017, screen enterprises represented by a company made significant progress in cob packaging technology, Cob packaging has also become the best solution to various questionable problems in the outdoor small spacing industry. It is believed that in 2018, with the further stability and promotion of cob packaging technology, it can well help jrcld Jingrui create an outdoor small spacing market.fqj
The Market Demand for LED Display Screen Is Improving, and the Production Capacity Demand of Mini / Micro Breaks Out
The Market Demand for LED Display Screen Is Improving, and the Production Capacity Demand of Mini / Micro Breaks Out
Since the end of the year, we have obviously felt the recovery of market demand. As the LED display industry enters the traditional peak season, coupled with the continuous release of demand for high-definition video display equipment in the terminal market, especially after new display products such as mini / micro began to enable the market, the production capacity began to become the focus of upstream and downstream enterprises in the industrial chain.As we all know, China's LED display industry has been in a dominant position in the global field, and after leading for several years, China's LED display industry is further opening up its leading distance. Statistics show that with the development of high definition display market such as small spacing and Mini/Micro LED, it is estimated that the total capacity of Chinese mainland's panel will reach 55% in 2020. In addition, since this year, almost all international giants such as Europe, America and South Korea have stopped work and reduced production due to the great impact of the epidemic. Thanks to the advantages of domestic epidemic prevention and control, Chinese LED screen enterprises have seized the opportunity to expand production capacity, reduce costs and expand their leading advantages. In particular, the production capacity of mini / micro LED has become an urgent task for many led enterprises.Leyard Earlier, lyade publicly stated that the micro LED display mass production base was officially put into operation. It established a joint venture with Taiwan Jingyuan optoelectronics to set up Lijing microelectronics, the world's first micro LED display mass production base, which was also officially put into operation on October 29.ZhoumingOn November 3, Zhouming technology released information related to investor research, revealing that the industry began to pick up from Q3 and that the market continued to pick up. At the same time, on the production capacity layout of mini led, Zhouming technology disclosed that it is successively investing a large amount of funds for the upgrading of Huizhou Daya Bay industrial base as planned, and adding several Mini LED display intelligent production lines. In addition to the existing Mini LED production line, nearly 50% of the funds raised in the company's fixed growth plan will be invested in equipment in the field of mini ledTable sectionRecently, taibiao also publicly said that there are currently 9 factories in China and India, with a total of 200 SMT lines. In the mini led part, mass production is expected to start in January next year. Taibiao also invested large capital expenditure and R & D personnel.Hongli ZhihuiRecently, Hongli Zhihui announced a number of mini led investment projects. According to rough calculation, the total investment in the expansion projects announced by Hongli Zhihui this year will reach 3.65 billion yuan, and the planned annual output value will exceed 5.8 billion yuan. "As industry experts said, in the face of mini / micro led, the future display technology, China, as the most active region in the global display industry, is essential for new investment, various integration and mass production climbing of new production lines to maintain its global leading position. It is believed that with the further release of the HD display market, the investment of relevant enterprises in the mainland and Taiwan will continue to increase.Facing the upcoming Mini / micro led new display era, although China's LED display industry has leading advantages, we must also recognize our own shortcomings. Firstly, the current distribution of China's LED display industry is mainly concentrated in the southeast coastal areas. From the perspective of regional distribution, it is not conducive to the overall balanced development of the industry. Secondly, from the perspective of the overall brand pattern of the global industry, although China is in a leading position in terms of production capacity and market share, the brand influence of Chinese LED screen enterprises in the global market is still weak. Finally, there are still some weaknesses in China's LED display industry, such as relatively single technical structure and insufficient competitiveness of the whole industrial chain. In the future, we must learn from each other's strengths to make up for our weaknesses and give full play to the Industrial Synergy to continue to maintain our leading edge.Original title: [abison headlines] Mini / micro capacity demand broke out, and China's LED industry continued to leadThe source of the article: WeChat official account: LED display channel] welcome to add attention! Please indicate the source of the article.
Guangxiang Technology Rushes to the Gem and Plans to Raise 630 Million Yuan to Expand the Production Capacity of LED Display Screen
Guangxiang Technology Rushes to the Gem and Plans to Raise 630 Million Yuan to Expand the Production Capacity of LED Display Screen
Following xinruida, recently, two related enterprises in the LED industry plan to be listed on the gem. According to the CSRC, the gem IPO of Shenzhen Guangxiang Technology Co., Ltd. (hereinafter referred to as "Guangxiang technology") has entered the sprint stage, and the listing guidance of Shenzhen Ming Microelectronics Co., Ltd. (hereinafter referred to as "Ming microelectronics") has been completed.Founded in 2006, Guangxiang technology is headquartered in Shenzhen and has offices in Beijing, Shanghai and other cities. It is mainly engaged in indoor and outdoor full-color LED display screens and rental screens. At present, Guangxiang technology has a wholly-owned subsidiary, HK gloss limited , Guangxiang Hong Kong wholly controls glossine USA Inc and glossine B.V. the prospectus shows that Guangxiang technology plans to issue no more than 16.0875 million shares to the public, and no less than 25% of the total share capital of the company after this offering. This offering will raise 631 million yuan to invest in LED display expansion and other projects. In 2017, 2018 and 2019, Guangxiang technology achieved revenue of 589 million yuan and 7.7 million yuan respectively The net profit was 39.45 million yuan, 42.47 million yuan and 108 million yuan respectively. The revenue and net profit increased year by year. Among them, the sales revenue of LED display screen accounted for more than 98% in each year. In addition, the proportion of overseas sales in the company's main business revenue in each year was 37.20%, 43.36% and 44.49% respectively.According to the different pixel spacing of LED display screen, Guangxiang technology divides the display screen products into four categories: below P3, P3-P4, p4-p5 and above P5. At present, the company has built 6 LED display screen assembly lines.The raised funds will be used for 80000 square meters of mobile LED display expansion project, R & D and experimental center construction project, mobile LED display marketing network construction project and supplementary working capital project. Among them, 80000 square meters of mobile LED display production capacity will be added after the 80000 square meters of mobile LED display expansion project is completed. In addition, through the mobile LED display marketing network For the project, Guangxiang technology will establish media operation centers integrating office, exhibition, storage and after-sales in overseas countries or regions such as the East Bank of the United States, the West Bank of the United States, Italy, the Netherlands, the Middle East, South Korea, India and South Africa, as well as domestic cities such as Beijing, Shanghai, Wuhan and Chongqing.According to Guangxiang technology, all the investment projects of the raised funds belong to or serve the company's main business. The main purpose of the implementation of the raised investment project is to consolidate and expand the company's current main business, further expand the company's market share in the field of LED display screen and consolidate the advantageous position in the industry. Guangxiang technology said that in the future, the company will further break through small spacing, mini / micro led and different technologies For technical difficulties such as screen, expand production capacity, improve the automation and intelligence level of the production base, further optimize the production process and consolidate the advantageous position of the industry. At the same time, the company will expand the business model by virtue of the accumulated industry reputation and customer resource channel advantages. On the one hand, the company will horizontally broaden the product lines such as lighting and sound, and provide one-stop performance equipment and technical services; on the other hand We will vertically extend the industrial chain, carry out leasing services, establish regional media operation centers at home and abroad, promote and shape brand image, and reserve mobile LED display resources. On this basis, we will further meet the needs of customers in the field of culture and media, and establish a service network covering areas with intensive cultural and sports activities all over the world.Ming microelectronics has made a three-time sprint to the capital market, and the listing guidance has been completedMing microelectronics was founded in 2003, focusing on the research and development of power management, LED lighting and LED display driver chips. According to the counseling filing report, CSC securities and Ming microelectronics signed an agreement on January 15, 2020 Guidance agreement between Shenzhen Ming Microelectronics Co., Ltd. and CSC Securities Co., Ltd. on the initial public offering and listing of Shenzhen Ming Microelectronics Co., Ltd , submitted the counseling filing materials to Shenzhen regulatory bureau on January 17, 2020. On January 21, 2020, Shenzhen Regulatory Bureau officially accepted the counseling filing application. Up to now, the scheduled work plan has been completed. According to ledinside's previous reports, Ming microelectronics has sprint into the capital market twice, this is the third time. On January 12, 2011, Ming microelectronics officially accepted Guoxin Guidance on the listing of securities; on February 16, 2012, the CSRC announced that Ming microelectronics had terminated the review. The reason given by Ming microelectronics was that the performance in 2011 did not meet expectations and the market was not optimistic, so the company voluntarily withdrew its listing application. In June 2017, Ming microelectronics launched an IPO for the second time and planned to raise 457 million yuan to invest in the R & D and industrialization of a new generation of LED display driver chips , intelligent lighting processor R & D, industrialization and integrated circuit packaging projects. However, in February 2018, Ming microelectronics was approved for the second IPO.Ledinside viewLedinside believes that the new display is one of the main development directions of LED in the future. At present, it is only in its infancy. Guangxiang technology and Ming microelectronics are related enterprises. Guangxiang technology directly produces LED display products, while Ming microelectronics has also worked in the field of display driven IC for a long time and has a certain market position, which is one of the key development directions in the future. From the perspective of the industry, the two are The development directions of the companies are more in line with the development trend of the industry, and the market prospect is expected.
LED Dot Matrix Writing Display Screen
LED Dot Matrix Writing Display Screen
The single chip microcomputer STC89C58 has 1KB off chip ram, which can meet the requirements of saving four screen display information. The single chip microcomputer has high cost performance. The system schematic diagram is shown in Figure 2.In this system, light pen is a very important link. In order to work better and stably, appropriate anti-interference measures must be added. In terms of signal transmission, shielded soft coaxial copper wire is adopted, and a black heat shrinkable tube is sleeved around the infrared photoelectric triode. The diameter of the infrared photoelectric triode is smaller than that of a single LED lamp, so as to ensure less interference from external infrared rays.2.3 led dual color dot matrix display and driving circuit There are many types of LED two-color (red and green) dot matrix, of which 4 are most commonly used 48 816 16 type module, this design needs a 32 32. The display brightness and volume are defined by the designer. Considering the factors of procurement, it is selected from 16 to 8 8 composition of two-color dot matrix module 32 The 32 dot matrix display uses 74hc154 and 74HC595 chips to drive the display, and the serial port works in mode 0 (fast speed) to quickly send the display information to 74HC595. LED is a nonlinear component. When the voltage at both ends reaches a certain value, the current passing through it will rise sharply. Consider 32 32 dot matrix is composed of 1024 light-emitting diodes. When they are lit at the same time, the current is very large, and the power supply capacity must be considered. Generally, the current value of LED is 5 20 mA, the maximum value is 20 mA, and two lines are lit at the same time, including: I = 20 64= 1 280mA2.4 external light detection circuit The external light detection circuit is shown in Figure 4. The circuit uses a photosensitive resistor RP in series with a fixed resistor R9 to convert the light change into voltage change. After the analog-to-digital conversion (A / D) of the voltage signal is carried out through the chip ad833, it is sent to the single chip microcomputer for processing by 5 pins to control the adjustment of brightness.According to the partial pressure principle, there are: It can be seen that selecting different resistance values of R9 can change the size of VIN and make the input signal within an appropriate range. The resistance value of photosensitive resistance RP changes with illumination is 3 4 K . According to the above formula, R9 is 3 4 K , and R9 = 4 K .2.5 timeout low power design The timeout low-power design is realized by software. The time constant is set by using the key. When the light pen does not touch the display screen or the key is not pressed within the set time, all displays are closed to make the system enter the sleep state and reduce the power consumption. When a key is pressed, the system resumes operation.
Kerui Introduces New Screen Master C4smt and C4smd LEDs
Kerui Introduces New Screen Master C4smt and C4smd LEDs
NASDAQ: Cree, the market leader in the field of LED, recently announced the launch of a new screen master C4smt and c4smd 4mm led further expand their market leading position of high brightness (HB) led. The new high brightness LED adopts industry-leading packaging technology and has unparalleled ultra-high brightness and far-field characteristics. At the same time, compared with the previous generation of high brightness LED products, the new high brightness LED can not only enable the display manufacturers to provide the best visual experience for the audience, but also reduce the system and operation cost.William Tang, operation director of Lighthouse, said: "Kerui continues to make innovative breakthroughs and launch the world's first high brightness LED with a 20 degree tilt angle. Kerui c4smt LED is undoubtedly the best choice for the LED display with the center view at the bottom of the screen."C4smt and c4smd are the two brightest LEDs in the P2 LED series of Kerui high brightness elliptical tubes. C4smd LED provides the brightest performance at zero angle light intensity, and c4smt LED provides the brightest peak light intensity performance at - 20 degree angle of view. Both LEDs have far-field characteristics, and can maintain the same visual effect of all viewing angles of the display screen, so that the audience can have the same visual experience when viewing the screen from different angles and positions.Kerui c4smt LED is the world's first commercial high brightness LED with - 20 degree tilt angle. It is optimized for outdoor display and digital advertising screen installed at a higher position of the building. This led can maximize people's visual enjoyment of the LED display at the high position, minimize light loss, and save up to 32% power consumption compared with the through-hole oval tube LED with standard zero angle of view.Mike Watson, senior director of LED component market of Kerui, said: "Kerui keeps breaking the record of LED innovation and developing new LED products to meet the needs of the emerging outdoor display market. Kerui has always been committed to the innovation of high brightness LED, and has developed the first ipx5 grade waterproof surface mount LED, the first ipx6 / 8 grade surface mount optimized to simplify production, and now this inclined angle led, driving the reform in the field of large screen LED display and serving the society The audience brings an unprecedented visual feast. "
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