How does LED display engineering enhance sharpness?
1.Improve the contrast of LED full color display
Contrast is one of the key factors that affect the visual effect. Generally speaking, the higher the contrast, the clearer the image and the more vivid the colors. High contrast is of great help to the sharpness, detail and gray level of the image. In some text and video displays with large black and white contrast, high-contrast full-color LED displays have advantages in black and white contrast, sharpness, and integrity. Contrast has a greater impact on the display effect of dynamic video. Because the light and dark transitions in dynamic images are faster, the higher the contrast, the easier it is for human eyes to distinguish such a conversion process.
In fact, the improvement of the LED full-color screen's contrast is mainly to increase the brightness of the full-color LED display and reduce the surface reflectance of the screen. However, the higher the brightness, the better. Longevity can also cause light pollution. Light pollution has become a hotly debated topic, and excessive brightness can affect the environment and people. The full-color LED display LED panel and LED light-emitting tube are specially processed to reduce the reflectivity of the LED panel and increase the contrast of the full-color LED display.
2.Improve the gray level of LED full color display
The gray level refers to the number of brightness levels that can be distinguished from the darkest to the brightest in the single primary color of the LED full color screen. The higher the gray level of the full color LED display, the richer the color and the more beautiful the color; otherwise, the display Single color, simple change. Increasing the gray level can greatly enhance the color depth, which makes the display level of the image color increase geometrically. The LED gray level control level is 14bit ~ 16bit, which makes the high-level display products' image level resolution details and display effects reach the world advanced level. With the development of hardware technology, LED gray levels will continue to develop to higher control accuracy.
3.Reduce the dot pitch of LED full-color display
Narrowing the dot pitch of the LED full-color display can improve its sharpness. The smaller the dot pitch of the full-color LED display, the finer the screen display. However, at this point, there must be mature technology as the core support, its input cost is relatively large, and the price of the full-color LED display produced is also high, but fortunately the market is now developing towards small-pitch LED displays.
4. Combination of LED full-color display and video processor
LED video processors 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., to enhance image details and improve picture quality.
The video processor image scaling processing algorithm is used to ensure that after the video image is scaled, the sharpness and gray level of the image are maintained to the greatest extent. In addition, the video processor is also required to have abundant image adjustment options and adjustment effects, and to process the image brightness, contrast, and grayscale to ensure that the screen output is soft and clear.