The reason is that increasing the brightness of the LED display is essentially to increase consumers' visibility of screen pictures, videos and other content. Studies have shown that the human eye's perception of color is greater than its perception of light and dark. The visual cells on the retina of the human eye are composed of cones and columnar cells. Since each cone cell is connected to an optic nerve ending, the resolution is high and can distinguish details and colors; while multiple columnar cells are connected to one optic nerve ending, the resolution is low and can only distinguish the outline of the graphic. Although the human eye has a wide range of total perception of brightness, when the human eye adapts to a certain ambient brightness, its perception range will be limited. At this time, the cone cells responsible for inspecting colors play a major role.
