Array substrate, and display panel and driving method thereof

Abstract

The invention discloses an array substrate, and a display panel and a driving method thereof. The array substrate comprises multiple grid lines and multiple data lines, the multiple grid lines and the multiple data lines divide the array substrate into multiple pixel units, each pixel unit comprises a switch transistor, each pixel unit also internally comprises a discharge module, the control ends of the discharge modules are connected with the grid lines in a row previous to the row where the pixel units are disposed, and the discharge module is used for conducting pixel electrodes of the pixel units of a local row with a low-level signal end when the previous row of grid lines are scanned. According to the invention, through arrangement of the discharge module, charge residue on the pixel electrodes can be fully released before each pixel unit is displayed so that accumulation of the residue charge is prevented during a polarity overturning process, an afterimage phenomenon can be avoided, and the displayed image quality is improved.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular to an array substrate, a display panel including the array substrate, and a driving method of the display panel. Background technique [0002] The liquid crystal display panel includes an array substrate (TFT substrate), a color filter substrate (CF substrate) and a liquid crystal layer between them. Existing array substrates such as figure 1 As shown, each pixel unit includes a thin film transistor as a switch control element and a pixel electrode, and the pixel electrode and the common electrode form a liquid crystal capacitor. Under the control of the intersecting data lines and scanning lines, the thin film transistors input different voltages to the pixel electrodes, thereby forming different electric fields on the liquid crystal capacitors, and the electric fields control the deflection of the liquid crystals to realize the display function of the panel. [0003...

AI Technical Summary

Problems solved by technology

During the polarity reversal process, due to the leakage current of the thin film transistor and the crosstalk of parasitic capacitance, the positive and negative charges on the two electrodes of the liquid crystal capacitor cannot be completely offset, and the residual DC charges accumulated on the electrodes will affect the deflection of the liquid crystal, forming afterimage

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