The development of LED screens

The development of LED screens presents the following four stage First generation: monochrome LED display screen

1. It uses red as the base color, mainly displays text and simple patterns, and is mainly used for notifications, announcements and passenger flow guidance systems.

  2. Second generation: dual-primary color multi-grayscale display screen

Red and yellow-green are the primary colors. Because there is no blue, it can only be called pseudo-color. It can display multi-grayscale images and videos. At present, it is widely used in telecommunications, banks, taxation, hospitals, government agencies and other occasions in China, mainly displaying slogans, public service advertisements and image promotion information.

3. The third generation: full color multi-grayscale display screen

With red, blue and yellow-green as the primary colors, it can display more realistic images and is gradually replacing the previous generation of products.

4. Fourth generation: true color multi-grayscale display screen

With red, blue and pure green as the base colors, it can truly reproduce all colors in nature (even exceeding the natural color range in color coordinates). It can display various video images and color advertisements. Its bright colors, bright high brightness, and delicate contrast have excellent visual impact in the field of publicity and advertising. The true color 5mm indoor large screen belongs to the fourth generation product mentioned above. It has high brightness, is not affected by ambient brightness, is thin, occupies a small space, has bright and rich colors, and a wide viewing angle. It can be used in a spacious hall environment without any stitching image loss.