The drive of liquid crystal display is used to modulate the phase, peak, frequency, etc. of the potential signal applied to the electrode of the liquid crystal display device, in order to establish a driving electric field and achieve the display effect during the liquid crystal display period. The display of liquid crystals is due to the application of an electric field on the display pixel, which is generated by the synthesis of potential signals on the two electrodes before and after the display pixel. Establishing a direct current electric field on the display pixel will cause chemical reactions and electrode aging of the liquid crystal material, thereby rapidly reducing the display life of the liquid crystal. Therefore, it is necessary to establish an AC driving electric field, and it is required that the DC component in this AC electric field be as small as possible, Usually, the DC component is required to be less than 50mV. In practical applications, due to the use of digital circuit driving, this AC electric field is established through pulse voltage signals. The strength of the AC electric field of the display pixel is represented by the effective value of the AC voltage. When the effective value is greater than the threshold voltage of the liquid crystal, the pixel is in a display state; When the effective value is less than the closed value voltage of the liquid crystal, the pixel does not produce an electro-optic effect; When the effective value is near the threshold voltage, the pixel exhibits a weak electro-optic effect, which will affect the contrast of the liquid crystal display device. The drive of liquid crystal display is used to modulate the phase, peak, frequency, etc. of the potential signal applied to the electrode of the liquid crystal display device, in order to establish a driving electric field and achieve the display effect during the liquid crystal display period
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