Black Matrix is one of the important design elements in the display screen, which is mainly used in panel technologies such as liquid crystal display (LCD) and organic light-emitting diode display (OLED). It is a black coating or material that sits between pixels and is used to separate adjacent red, green, and blue (RGB) subpixels. The main function of the black matrix is to reduce light leakage and improve contrast. By absorbing excess light from the surrounding area, the black matrix prevents light from spreading to other pixel areas, thus enhancing the sharpness and color accuracy of the picture. At the same time, it can effectively reduce light reflection, improve the purity of black, so that the picture presents a deeper black, especially in the scene with strong contrast between light and dark.

In addition, the black matrix can also reduce visual fatigue and enhance the viewing experience. Although this technical detail is not easily detected by the naked eye, it makes an important contribution to the improvement of the overall picture quality of the display and is an indispensable part of modern display technology.