Array substrate and driving method thereof, as well as display device

Abstract

The invention discloses an array substrate and a driving method thereof, as well as a display device. The array substrate comprises a common voltage generating unit, a sequential control unit, a data voltage generating unit, a switch control unit and pixel units, wherein the switch control unit is connected with the common voltage generating unit, the sequential control unit, the data voltage generating unit, a common voltage wire and a data wire; at a current frame, the switch control unit is used for loading a common voltage signal onto the common voltage wire and loading a data voltage signal onto the data wire; at a next frame, the switch control unit is used for loading a common voltage signal onto the data wire and loading a data voltage signal onto the common voltage wire. The switch control unit is arranged for switching voltage signals loaded in the data wire and the common voltage wire, so that the polarity-reversal requirement of liquid crystal molecules in the display device is met; meanwhile, the array substrate can be used for reducing the output voltage swing of the data voltage signals, so that the power consumption of the display device is reduced.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to an array substrate, a driving method thereof, and a display device. Background technique [0002] A liquid crystal display is a commonly used flat panel display at present, and a Thin Film Transistor Liquid Crystal Display (TFT-LCD for short) is a mainstream product in the liquid crystal display. [0003] The thin film transistor liquid crystal display includes: a display area and a non-display area, and several pixel units are arranged in the display area, and each pixel unit includes a pixel electrode, a storage capacitor and a thin film transistor, the first end of the storage capacitor and the data line and the thin film The sources of the transistors are connected, and the second end of the storage capacitor is connected to the gate line or the common voltage line. [0004] Take the case where the second end of the storage capacitor is connected to the common volta...

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Problems solved by technology

[0006] It can be seen from the above that when the common voltage signal is a DC signal, the output voltage of the corresponding data voltage signal has a larger swing (the voltage fluctuation range is larger)

The increase in the swing of the output voltage of the data voltage signal will cause the power consumption of the storage capacitor to increase during the charging and discharging process, which will lead to an increase in the power consumption of the entire liquid crystal display panel.

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