Driving method for liquid crystal display

Abstract

The invention discloses a driving method for a liquid crystal display. The liquid crystal display comprises a common electrode, a pixel electrode and a liquid crystal layer, wherein the liquid crystal layer is positioned between the common electrode and the pixel electrode and is provided with a plurality of impurity ions and a pixel which is used for displaying a gray scale. The driving method comprises the following steps of: separating the impurity ions to the common electrode and the pixel electrode to form an internal electric field on the liquid crystal layer; and providing a common voltage on the common electrode according to the gray scale and providing a first compensating voltage and a second compensating voltage on the pixel electrode, wherein the first compensating voltage and the second compensating voltage are used for compensating the internal electric field, so that the compensating voltage and the second compensating voltage are equal relative to difference value of the common voltage. Through the driving method, charge accumulation is purposely made, and then correct display of a picture is realized by providing the first compensating voltage and the second compensating voltage.

Description

technical field [0001] The present invention relates to a driving method, and in particular to a driving method of a liquid crystal display. Background technique [0002] Please refer to figure 1 , figure 1 It is a schematic cross-sectional view of an existing liquid crystal display. Currently, liquid crystal displays are driven by AC voltage, so there are two electrodes at both ends of the liquid crystal layer, one is a common electrode 100 and the other is a pixel electrode 200 , and there are positive and negative impurity ions 10 inside the liquid crystal. [0003] Please refer to figure 2 , figure 2 It is the driving voltage waveform diagram of the existing AC driving. In a fixed picture, by adding different pixel voltages Vp1 and Vp2 to the pixel electrode 200, so that the voltage VCOM of the common electrode 100 and the pixel electrode 200 in different frames form opposite electric fields with equal voltage differences to realize the liquid crystal. AC voltage...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a driving method of a liquid crystal display, which deliberately produces residual charge, and then adjusts the driving voltage to solve the problem of residual charge

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