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The brightness of a LCD splicing screen represents the degree of brightness caused by a certain color in human vision, which is directly related to the intensity of light. The stronger the intensity of light, the brighter the scenery; The lower the intensity of light, the darker the scenery. Brightness displays the magnitude of light energy, also known as light energy.

Complementary colors of LCD splicing screens: If two colors of light (monochromatic or polychromatic) are mixed in an appropriate proportion to produce a white sensation, these two colors are called "complementary colors". For example, red light with a wavelength of 656nm and blue light with a wavelength of 492nm are complementary colors; Another example is tasting red and green, yellow and blue, which are the intermediate tasks of the three primary colors - the primary color complements the other two mixed colors of light. When the colors decrease, they will turn black. When colors match each other, it will cause a strong color contrast, feeling that red is redder and green is greener. If the saturation of complementary colors decreases, they can tend towards harmony.

The color of LCD splicing screen, as the name suggests, is the appearance name of various colors, such as red, regular blue, lemon yellow, etc. Hue is the main characteristic of color and the most accurate standard for distinguishing different colors. In fact, any color other than black, white, and gray has tone properties, which are composed of primary, intermediate, and complex colors. Optically speaking, color tone differences are caused by the length of the wavelength of light waves. Even if it is the same color, it can be divided into several colors. For example, yellow can be divided into medium yellow, earthy yellow, lemon yellow, etc., while gray can be divided into red gray, blue gray, purple gray, etc. There are six basic colors in the spectrum: red, orange, yellow, green, blue, and purple. People's eyes can distinguish about 180 different colors.