Outdoor LED display shows clearer three methods

The full-color LED display's contrast, refresh rate, gray scale and other technical indicators directly affect the LED full color display display.

I. Increased contrast

Contrast is one of the key factors affecting the visual effect. In general, the higher the contrast, the clearer the image is and the brighter the color is. High contrast is very helpful for image clarity, detail performance, and grayscale performance. In some black and white contrast text, video display, high contrast led display in black and white contrast, clarity, integrity and other aspects have advantages. Contrast has more influence on the dynamic video display effect. Because the light and shade conversion in the dynamic image is faster, the higher the contrast, the easier the human eye can distinguish the conversion process.

Two. Improve display contrast

1, reduce the LED display surface reflectance

Mainly in the LED panel and LED light tube for special processing, reduce the LED panel reflectivity, thereby improving the contrast of the led display.

The NX series LED full color high-end display with a 4mm dot pitch has been raised from the original 950:1 to 4000:1, which has greatly improved the product's contrast ratio.

2, improve the brightness of the led display

LED display brightness in some occasions, not the higher the better. Such as indoor display screen, if the brightness is too high, the formation of light pollution, causing damage to the viewer's vision.

Three gray levels

The gray scale refers to the brightness level of the single-color brightness of the led display screen, which can be distinguished from the darkest to the brightest. The higher the gray level of the led display screen, the richer the color and the brighter the color; otherwise, the display color is single. The change is simple. The increase in gray level can greatly increase the color depth, so that the display level of the image color increases geometrically. The LED gray scale control level is 14bit~16bit, which makes the high-level display products' image level resolution detail and display effect reach the world advanced level. With the development of hardware technology, LED gray scale will continue to develop higher control accuracy.