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Liquid crystal display panel and its black picture insertion method

A liquid crystal display panel, black screen technology, used in static indicators, nonlinear optics, instruments, etc., can solve the problems of accelerated operation frequency, insufficient writing time of liquid crystal pixels, electromagnetic interference, etc.

Inactive Publication Date: 2008-12-10
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to insert a black picture between adjacent picture frames, the clock frequency of the data driver responsible for writing the data signal must be doubled, and the high-frequency operating frequency will reduce the charging time of the normal picture. , it is prone to the problem of insufficient writing time to the liquid crystal pixel, and the increase of the operating frequency will also cause the problem of electromagnetic interference (EMI)

Method used

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  • Liquid crystal display panel and its black picture insertion method
  • Liquid crystal display panel and its black picture insertion method
  • Liquid crystal display panel and its black picture insertion method

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Embodiment Construction

[0029] The present invention utilizes the newly added coupling scan line (coupling scan line) to cooperate with the original signal scan line to change the voltage of the pixel electrode, and uses the coupling voltage to make the pixels in the liquid crystal display panel present a black picture, so that the clock frequency can be increased without increasing the clock frequency. And under the premise of not changing the design of the backlight module, the black screen insertion effect can be achieved, so as to improve the dynamic quality of the display screen.

[0030] Please refer to FIG. 2, which shows a partial schematic diagram of the driving circuit of the liquid crystal display panel of the present invention. The liquid crystal display panel is provided with a plurality of signal scanning lines S1~Sm and a plurality of coupling scanning lines C0~Cm, and a plurality of The data lines D1 ˜ Dm, and the data lines D1 ˜ Dm are perpendicular to the scan lines S1 ˜ Sm and the c...

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Abstract

The present invention discloses a liquid crystal display panel and a black picture inserting method thereof. A plurality of coupling scanning beams are added to a plurality of scanning beams which are originally vertical to each other. The coupling scanning beams are connected with the stored capacitor of each pixel. The switch of each pixel is controlled by the scanning beams, so a data signal is selectively conveyed from a data wire to a liquid crystal capacitor and the stored capacitor. The coupling scanning beams can couple the stored capacitor and a pixel electrode by using voltage difference to reach a black picture inserting effect. In this way, a black inserting effect can be reached without increasing a time pulse frequency and without changing a black lighting module design. Then, the dynamic quality of a display picture is enhanced.

Description

field of invention [0001] The invention relates to a display panel and a driving method, and in particular to a liquid crystal display panel capable of reducing motion blur and a black picture insertion method thereof. technical background [0002] In the known active matrix thin film transistor liquid crystal display panel, please refer to FIG. 1, each pixel 10 has a thin film transistor (TFT) 12 as a control switch, its gate is connected to the horizontal scanning line 14, and the drain is connected to to the vertical data line 16, and the source is connected to the liquid crystal electrode. [0003] As shown in the figure, the display panel activates one scanning line 14 at a time to turn on all the thin film transistors 12 on the line, and send data signals to the corresponding pixels 10 through the data lines 16 . Then turn off the thin film transistor 12 until the signal is written again next time, during which the charge is stored on the pixel capacitor 18 and its pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/133G09G3/36
Inventor 谢明振
Owner INNOLUX CORP
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