2021-12-17 10:09:02, 修改于2021-12-17 10:16:35
Liquid crystal is an organic compound with regular molecular arrangement and optical anisotropy of crystals between solid and liquid. When the liquid crystal is heated to a certain temperature, it will be in a transparent liquid state, and when it is cooled, a turbid solid state of crystalline particles will appear. small lcd screens，Because of its physical characteristics of liquid and crystal, it is called "liquid crystal".
The liquid crystal display is actually a display made with liquid crystal as the display module. The liquid crystal in the liquid crystal display does not emit light when it is working, but controls the amount of external light passing through. When external light passes through the liquid crystal molecules, the arrangement and twisting state of the liquid crystal molecules are different, and the amount of light passing is different, thereby realizing the brightness and darkness changes. Using this principle, the image can be reproduced.
The size of the twisting of the liquid crystal molecules is determined by the voltage difference applied to both sides of the liquid crystal molecules, so that the conversion from electricity to light can be realized. That is, the level of voltage is used to control the amount of light passing, so that the electrical signal is converted into an optical signal, and the image is displayed.
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