True.
The higher the grayscale level of the LED display, the richer the color.
Grayscale refers to the brightness level that can be distinguished from the darkest to the brightest in the single primary color brightness of the LED display.
The higher the grayscale level, the more brightness levels the display can present, making the color display more delicate and rich.
For full-color LED displays, the increase in grayscale not only affects the brightness adjustment accuracy, but also directly affects the color restoration ability and the richness of the color. Therefore, grayscale is one of the important indicators for evaluating the display effect of LED displays.