Maintenance and identification of LED display
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. LED display production and maintenance also need professional knowledge, how to achieve HD display? To achieve high-definition display must have four factors: first, the chip source requires full high-definition; second, the display requirements can support full high-definition; third, to narrow the gap between led display; fourth, LED display and video processor combination. At present, LED full-color display is also moving towards more high-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 the image, the brighter the color. High contrast is of great help to image clarity, detail presentation and grayscale performance. In some black-and-white contrast text and video display, high contrast full-color LED display has advantages in black-and-white contrast, clarity, integrity and so on. Contrast has a greater impact on the dynamic video display effect. Because of the fast light-shade conversion in the dynamic image, the higher the contrast, the easier the human eye to distinguish such a conversion process. In fact, the contrast of LED full-color screen is mainly to improve the brightness of the full-color LED display and reduce the surface reflectance of the screen, but the brightness is not the higher the better, too high, but will be counterproductive, not only affect the life of the LED display screen, but also cause light pollution. Light pollution has become a hot topic now. The high brightness will have an impact on the environment and the crowd. Full-color LED display panel and LED light-emitting tube for special processing, can reduce the reflectance of the LED panel, but also improve the contrast of the full-color LED display.
2. Improving the gray level of LED full-color display screen refers to the brightness series which 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 Yunhai full-color LED display screen, the richer the color, the brighter the color; on the contrary, the display color is single and the change is simple. With the increase of gray level, the color depth can be greatly enhanced, and the display level of image color increases geometrically. The gray level of LED is between 14 bits and 16 bits, which makes the high-end display products achieve the world advanced level of image level resolution detail and display effect. With the development of hardware technology, LED grayscale will continue to develop to higher control accuracy.
3. Reducing the point spacing of the full-color LED display can improve its definition. The smaller the point spacing of the full-color LED display, the more delicate the display. However, this point, must have mature technology as the core support, its investment cost is relatively large, the production of full-color LED display prices are also high, but fortunately the market is also moving towards a small space LED display screen development.
4. LED full-color display and video processor combined with LED video processor can use advanced algorithms to modify the poor image quality signal, perform a series of processing, such as de-interlacing, edge sharpening, motion compensation, etc., to enhance the details of the image, improve the quality of the picture. Video processor image scaling processing algorithm is used to ensure that the video image after scaling processing, the maximum degree of image clarity and gray level. In addition, the video processor is also required to have a wealth of image adjustment options and adjustment effect, the brightness of the image, contrast, gray processing, to ensure that the screen output soft and clear screen