Four stages of LED electronic display development

LED electronic display was introduced from abroad in 1997, and then it began to sprout in China. It experienced four stages of development from monochrome, dual-color, full-color and true-color. The specific description of each stage is as follows:

The first generation: monochrome LED electronic display. With single red as the base color, display text and simple patterns are mainly used for notification, notification and passenger flow guidance systems.

The second generation: dual-color multi-gradation display. With red and yellow-green colors as the base color, there is no blue color, so it can only be called pseudo-color. It can display multi-gray-scale images and videos. Currently, it is widely used in telecommunications, banks, taxation, hospitals, government agencies and other occasions. Display slogans, PSAs and image promotion information.

The third generation: full color multi-gradation display. Using red, blue and yellow-green colors as the base color, more realistic images can be displayed. In 2008, it was the most popular, with extensive use of stage backgrounds, conference rooms, bulletin boards, and so on.

The fourth generation: truecolor multi-gradation display. With red, blue and pure green as the base color, it is possible to truly reproduce all colors of the natural world (even beyond the natural color range in color coordinates). Can display a variety of video images and color advertising, its bright colors, bright high brightness, fine contrast, in the field of advertising advertising has a very good visual impact.