LCD Working Principle

- Jul 05, 2018 -


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LCD (short for Liquid Crystal Display), a liquid crystal display, which is a display that uses liquid crystal controlled transmittance technology to achieve color.

From the standpoint of the structure of the liquid crystal display, the LCD is composed of two parallel glass plates having a thickness of about 1 mm and spaced apart by a uniform interval of 5 μm containing the liquid crystal material. Since the liquid crystal material itself does not emit light, a light pipe as a light source is provided on both sides of the display screen, and a backlight plate (or a light homogenizing plate) and a reflective film are formed on the back of the liquid crystal display, and the backlight plate is composed of a fluorescent substance. Light can be emitted, the main function of which is to provide a uniform background light source.



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