Liquid crystal display panel of column overturn mode and driving method thereof

A technology of liquid crystal display panel and driving method, which is applied in the direction of static indicators, nonlinear optics, instruments, etc., which can solve the problems of uneven display effect of the picture and uneven brightness and darkness of pixels, and achieve the effect of uniform display effect of the picture

Active Publication Date: 2015-09-02
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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AI Technical Summary

Problems solved by technology

When the liquid crystal display panel is working normally, because the voltage difference between the positive and negative polarity source voltage (that is, the signal voltage) of the TFT and the gate voltage is different, the charging effect of the TFT source on the pixel will appear in the same time. This will further cause the brightness and darkness of each pixel in the display screen to be different, and eventually lead to uneven display effect of the screen.

Method used

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  • Liquid crystal display panel of column overturn mode and driving method thereof
  • Liquid crystal display panel of column overturn mode and driving method thereof
  • Liquid crystal display panel of column overturn mode and driving method thereof

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Embodiment Construction

[0049] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0050] Please also see Figure 5 to Figure 7 , the present invention firstly provides a liquid crystal display panel in column inversion mode, comprising a plurality of vertical data lines parallel to each other and arranged in sequence, a plurality of horizontal scanning lines parallel to each other and arranged in sequence, and a plurality of pixels, and a pixel driving circuit is set in each pixel; multiple pixel driving circuits in the same row of pixels are electrically connected to the scanning line corresponding to the row of pixels; an odd number is respectively located on the left and right sides of each data line A row of pixels and a plurality of pixel driving circuits in an even row of pixels are all electrically connected to the d...

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Abstract

The invention provides a liquid crystal display panel of a column overturn mode and a driving method thereof. A charging control thin film transistor (T2) is added to a pixel driving circuit, and according to the difference between positive and negative voltages provided by a data line, the level height and pulse width of a clock signal (CK) supplied to the gate of the charging control thin film transistor (T2) are adjusted, and the time for the positive and negative voltages to charge two adjacent pixels is controlled. Therefore, the effects of charging of the positive and negative voltages to two adjacent pixels can be balanced, the charging difference caused by the positive and negative voltages to two adjacent pixels can be compensated, and the picture display effect is made uniform.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display panel in a column inversion mode and a driving method thereof. Background technique [0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, and no radiation, and has been widely used, such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or Laptop screens, etc., dominate the field of flat panel displays. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor substrate (Thin Film Transistor Array Substrate, TFT Array Substrate) and the color filter substrate (Color Filter, CF), and apply the driving voltage on the two substrates To ...

Claims

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Application Information

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IPC IPC(8): G09G3/36G02F1/1362
CPCG02F1/13624G09G3/3614G09G3/3659G09G2300/0823G09G3/36G02F1/136286G02F1/1368G09G3/3648G09G2310/08
Inventor 左清成谢剑星
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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