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LCD driving method

The liquid crystal display is due to the application of an electric field on the display pixel, and this electric field is generated by the synthesis of the potential signals on the two electrodes before and after the display pixel Liquid Crystal Display. It is very easy to establish a DC electric field on the display pixel, but the DC electric field will This leads to the chemical reaction of the liquid crystal material and the aging of the electrodes, thereby rapidly reducing the display life of the liquid crystal. Therefore, an AC drive electric field must be established, and the DC component in this AC electric field is required to 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 drive, this AC electric field is established by pulsed voltage signals. The strength of the AC electric field on the display pixel is represented by the effective value of the AC voltage AMOLED. When the effective value is greater than the threshold voltage of the liquid crystal, the pixel is in the display state; when the effective value is less than the threshold voltage, the pixel does not produce electro-optical effect; when the effective value is at the threshold value Near the voltage, the liquid crystal will show a weak electro-optical effect, which will affect the contrast of the liquid crystal display device LCD Display Module.

The driving of the liquid crystal display is used to adjust the phase, peak value, frequency, etc. of the potential signal applied to the electrode of the liquid crystal device to establish a driving electric field to realize the display effect of the liquid crystal display device 0.96inch OLED    . There are many driving methods for liquid crystal display, and the commonly used driving methods include static driving method and dynamic driving method LCD Module.