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Technology | it’s not difficult to make the LED display more high-definition. Just grasp these four factors

59 views admin 2021-07-29

LED display has received extensive attention since its birth. With the continuous progress of installation technology in recent years, it has been recognized and applied in various industries. The production and maintenance of LED display also need professional knowledge. How to realize high-definition display?

make the LED display more high-definition

To achieve HD display, there must be four factors: first, the film source requires full HD; Second, the display is required to support full HD; The third is to reduce the dot spacing of LED display screen; Fourth, the combination of LED display screen and video processor. At present, led full-color display is also moving towards higher definition display.

 

1. Improving the contrast of LED full-color display is one of the key factors affecting the visual effect. Generally speaking, the higher the contrast, the clearer and eye-catching the image, and the brighter and gorgeous the color. High contrast is very helpful for image clarity, detail performance and gray level performance. In some text and video displays with large black-and-white contrast, high contrast full-color LED display has advantages in black-and-white contrast, clarity and integrity. Contrast has a greater impact on the dynamic video display effect. Due to the fast light dark conversion in the dynamic image, the higher the contrast, the easier it is for people's eyes to distinguish such a conversion process. In fact, the improvement of the contrast of the LED full-color screen is mainly to improve the brightness of the full-color LED display screen and reduce the surface reflectivity of the screen. However, the higher the brightness is, the better. If it is too high, it will be counterproductive, which will not only affect the service life of the LED display screen, but also cause light pollution. Light pollution has become a hot topic. Too high brightness will have an impact on the environment and people. The LED panel and LED light-emitting tube of full-color LED display screen are specially processed, which can reduce the reflectivity of LED panel and improve the contrast of full-color LED display screen.

 

2. Improve the gray level of LED full-color display screen. The gray level refers to the brightness level that can be distinguished from the darkest to the brightest in the single primary color brightness of LED full-color display screen. The higher the gray level of cloud sea brilliance full-color LED display screen, the richer the color and the more gorgeous the color; On the contrary, the display color is single and the change is simple. The improvement of gray level can greatly improve the color depth and increase the geometric number of image color display levels. The LED gray control level is 14bit ~ 16bit, which makes the image level resolution details and display effect of high-end display products reach the world advanced level. With the development of hardware technology, led gray level will continue to develop to higher control accuracy.

3. Reducing the point spacing of LED full-color display screen and reducing the point spacing of LED full-color display screen can improve its clarity. The smaller the point spacing of full-color LED display screen is, the more delicate the picture display is. However, this must be supported by mature technology. Its investment cost is relatively large, and the price of the full-color LED display is also high. Fortunately, the market is also developing towards small spacing LED display.

4. Combined with LED full-color display and video processor, LED video processor can use advanced algorithms to modify signals with poor image quality, and perform a series of processing such as de interlacing, edge sharpening, motion compensation, etc., so as to enhance the details of the image and improve the image quality. The video processor image scaling algorithm is used to ensure that the definition and gray level of the image are maintained to the greatest extent after scaling. In addition, the video processor is also required to have rich image adjustment options and adjustment effects to process the image brightness, contrast and gray level, so as to ensure that the screen outputs soft and clear pictures.

 

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