Liquid crystals are liquid crystals, which are very special substances. It not only can flow like a liquid, but also has certain optical properties of crystals. Liquid crystal was discovered by Austrian botanist Reinitzer in 1888. It is an organic compound with regular molecular arrangement between solid and liquid.phone display The arrangement of liquid crystal molecules has a certain order, and this order is affected by external conditions, such as temperature, Changes in the electromagnetic field are very sensitive. Under the action of an electric field, the arrangement of liquid crystal molecules will change, thereby affecting its optical properties. This phenomenon is called electro-optic effect.
Usually two glass substrates are equipped with an alignment film, and the liquid crystal will be aligned along the groove. Because the alignment groove of the glass substrate deviates from 90°, the molecules in the liquid crystal are arranged neatly in the same plane like shutters, and the molecular orientation When the column transitions from one liquid level to another, it will gradually twist 90°, that is to say, the phase difference of the arrangement of the two layers of molecules is 90°. Under the action of different electric currents and electric fields, the liquid crystal molecules will be arranged regularly rotated 90 degrees to produce a difference in light transmittance, so that the difference between light and dark under the action of power on and off, the principle of controlling each pixel can constitute a Image required.
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