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Liquid crystal display device and drive method thereof

The technology of a liquid crystal display device and driving method, which is applied in static indicators, instruments, etc., can solve problems such as image crosstalk, offset, green color and flicker, and achieve the effect of improving display quality and eliminating crosstalk

Inactive Publication Date: 2014-03-12
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The parasitic capacitance between the data line and the common electrode will cause capacitive coupling between the data line and the common electrode, causing the voltage of the common electrode to shift relative to the common voltage output by the common voltage circuit
In some screens, the coupling effect will be amplified, resulting in problems such as crosstalk, green payment and flicker (Flicker) in the displayed image
Liquid crystal display devices based on traditional structures and driving methods are difficult to avoid the above problems

Method used

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  • Liquid crystal display device and drive method thereof
  • Liquid crystal display device and drive method thereof
  • Liquid crystal display device and drive method thereof

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Embodiment Construction

[0055] The present invention provides a liquid crystal display device and its driving method, by dividing the theoretical writing period of display data of the pixel electrode into the first stage and the second stage: The electrode is charged, and the voltage of the data line is adjusted to a reference voltage at the second stage while maintaining the voltage of the pixel electrode, and the reference voltage is equal to or close to the common voltage output by the common voltage circuit. Through this processing method, the present invention compensates the influence of the parasitic capacitance between the data line and the common electrode on the voltage of the common electrode, so as to reduce or eliminate the influence of the parasitic capacitance on the voltage of the common electrode, thereby improving or eliminating the influence caused by the above parasitic capacitance. The display image crosstalk, green pay and flicker (Flicker) and other problems, improve the display...

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Abstract

The invention provides a liquid crystal display device and a drive method thereof, relating to the technical field of a liquid crystal display. The drive method comprises the following steps of: in the first stage of the theory writing period of the display data of a pixel electrode, outputting a display data signal to the pixel electrode of the current charge line through a data line; and in the second stage of the theory writing period of the display data of the pixel electrode, cutting the connection between the data line and the pixel electrode of the current charge line, and then applying a reference voltage signal to the data line so that the potential of the data line reaches the reference voltage, wherein the difference between the reference voltage and the public voltage output by a public voltage circuit is within a preset range. Through the invention, the image display quality of the liquid crystal display device can be improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal displays, in particular to a liquid crystal display device and a driving method thereof. Background technique [0002] Thin film transistor liquid crystal display (TFT-LCD) has the advantages of thinness, low power consumption and strong portability, and is widely used in televisions, computers and other display devices. [0003] The schematic diagram of the structure of a traditional thin film transistor liquid crystal display is as follows: figure 1 As shown, it includes a liquid crystal panel 14, a gate driver 13 and a source driver 11 for controlling the liquid crystal panel 14, a timing controller 12 for controlling the gate driver 13 and the source driver 14, and a common Voltage common voltage circuit 15. The liquid crystal panel 14 includes a plurality of gate lines 143 arranged in parallel and at equal intervals, a common voltage line 145 arranged in parallel with the gate lines ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 江亮
Owner BOE TECH GRP CO LTD
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