When it comes to grayscale, people might associate it with Huawei’s grayscale management theory discussed by Ren Zhengfei. The so-called grayscale management theory suggests that the world is not just black or white, not either this or that; there exists a gray chaotic state between black and white. The correct direction for a company, a clear direction, emerges from this gray chaos.
In LED displays, grayscale refers to the degree of brightness variation of pixels. Red, green, and blue all have grayscale. Displays typically have 8-bit, 10-bit, 12-bit, 14-bit, 16-bit, … N-bit, etc. For RGB, the three primary colors, each color is divided into 2^N grayscale levels. For example, an 8-bit RGB full-color display has 2^8 = 256 grayscale levels for each primary color, allowing it to display 256 x 256 x 256 = 16,777,216 colors.
The higher the grayscale level of an LED display, the richer the colors, and the more vivid the display. Conversely, lower grayscale levels result in a single color and simple changes. Of course, as the grayscale level of a display increases, the cost also increases. When the grayscale level exceeds the perceptual limit of the human eye, the cost-effectiveness of the display decreases. When selecting the grayscale parameters for an LED display, one should choose based on playback effects and costs, finding a suitable balance.
In indoor settings like Conference LED Video Display, security monitoring displays, Dance Floor LED Display, etc., and outdoor displays such as LED pole screens, there is a higher demand for the delicacy and vibrancy of display colors. In these mainstream applications, 14-bit grayscale or higher grayscale LED displays are commonly used. For instance, a 14-bit grayscale RGB three-in-one full-color smart pole screen has 2^14 = 16,384 grayscale levels for each primary color, allowing it to display 16,384 x 16,384 x 16,384 = 4,398,046,511,104 colors. The display colors are extremely rich, resulting in a very delicate and vibrant screen with smooth transitions between images.
