In recent years, China’s LED display industry has developed rapidly and has reached a considerable scale. What makes the LED display industry develop so fast? On the one hand, because of the significant energy-saving effect of LED display, on the other hand, the technical advantages of LED display. The following are the technical advantages of LED display to introduce it:
1. The picture is clear
According to the visual characteristics of people and LED display characteristics, the use of advanced nonlinear scanning technology, so that all levels of the display screen are fully reflected, and subtle changes are clearly presented, greatly improves the picture quality for the display screen with fewer pixels, the technology is important. Nonlinear step difference display technology, that is, in the bottom brightness zone the step difference is small, increase the number of stages, and gradually increase the step difference when the high brightness zone increases, resulting in the visual effect of the “step difference consistency”, so that it has a better visual effect.
2. Good compatibility
It can be compatible with SVGA mode in the computer and can connect to a variety of video devices.
3. Computer image with the same screen display, screen mapping position adjustable, with professional control software.
4. High gray scale technology
LED display with their high gray level, delicate picture in the industry has been unanimously praised. The “LED display detection method” has broken through the technical frontier of IOBIT technology, and is moving to a higher field.
5. Brightness adjustment technology
In order to adapt to different weather and make the display achieve the best display effect, the LED electronic display is specially designed with an automatic and manual adjustment device with 32 levels of brightness. Ensure that the entire LED display can achieve the best display effect in various environments.
6. Strong convection heat dissipation system
LED display when the screen body emitted higher heat, in order to ensure that the entire display system is in a stable state of operation, the company developed a strong convection-type heat dissipation system, significantly improving the LED display heat dissipation effect.
7. Media networking
With the advent of the information age, the company fully launched the media networking system solutions, the company LED display system as the network terminal to form a standardized interface can be the standard video signal, audio signal, network, and other equipment for direct access, strong compatibility.
LED display technology has these unique advantages, making the future development prospects of LED displays very broad. Recently, domestic LED display technology has sent good news: the panchromatic LED large-screen display technology has made a new breakthrough.
”Research on Key Technologies of High Definition and High Uniformity Panchromatic LED Large Screen Display” is divided into three topics: “Research on Digital Acquisition Technology of High-precision Light and Color Parameters of LED Large Screen Flat Panel Display”, “Research and Development and Application Demonstration of Gray Scale Control and Luminance Color Correction Control Technology of LED Large Screen Flat Panel Display”, “Research on High-quality Image Display Support Technology and Detection and Evaluation Technology of LED Large Screen Flat Panel Display”.
Among them, the “LED large-screen flat panel display high-precision light color parameter digital acquisition technology research” put forward the non-progressive column of bright color parameter acquisition method and bright color separation of high-precision light color parameter processing method, the development of LED large screen display high-speed high-precision bright color parameter adaptive acquisition system, to promote the LED display brightness color correction control technology and related detection and evaluation techniques to provide important support.
“LED large-screen flat panel display gray control and brightness color correction control technology research and development and application demonstration”, the research group adopts the grayscale modulation method based on the mixed weight of the time sheet distribution, brightness and chromaticity coefficient separation and correction technology, solves the LED display high-precision grayscale control and bright color uniformity problems, breaks through the “integrated three-in-one” packaging technology, and builds an annual output of 30,000 square meters of high-end LED large-screen display production line. It provides technical support for improving the LED large-screen flat-panel display industry.
In terms of “LED large-screen flat panel display high-quality image display support technology and detection and evaluation technology research”, the research group created an image uniformity evaluation model based on HVS, established an LED special comprehensive detection platform for LED large-screen brightness, chromaticity, bright color uniformity, viewing angle, display grayscale, and other indicators, and improved the display quality of high-end LED large-screen displays from the source of the image, which will also greatly promote the rapid development of the LED display industry.
The model and type of led display, type of LED display
Indoor LED full-color stage background screen
1. According to the color base color, it can be divided
Single primary color display: Single color (red or green).
Dual primary color display: red and green dual primary colors, 256 levels of grayscale, can display 65536 colors.
Full-color display: red, green, and blue three primary colors, 256 levels of the grayscale full-color display can display more than 16 million colors.
2. Classify the devices according to the display
LED digital display: the display device is a 7-segment code digital tube, suitable for making clock screens, interest rate screens, etc., displaying digital electronic displays.
LED dot matrix graphic display: The display device is a dot matrix display module composed of many evenly arranged light-emitting diodes, which is suitable for playing text and image information.
LED video display: The display device is composed of many light-emitting diodes, which can display various video files such as videos and animations.
3. Classified according to the use of occasions
Indoor display: the luminous point is small, generally 3mm – 8mm, and the display area is generally several to more than ten square meters.
Outdoor display: the area is generally tens of square meters to hundreds of square meters, has high brightness, can work in the sun, with windproof, rainproof, and waterproof functions.
4. Classified according to the diameter and spacing of the luminous point
Indoor screen (by diameter): 3mm, 3.75mm, 5mm,
Outdoor screen (divided by spacing):P H10, PH12, PH14, PH16, PH20, PH25, PH31.25, PH37.5, and so on.
5. According to the series of classifications,
It can be divided into LED curtain wall screen, LED soft screen, LED floor screen, LED stripe screen, LED box screen (both electronic screen, traditional screen), LED ultra-thin screen, LED curved screen (both special-shaped screen)