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Lcd device and drive method thereof

A liquid crystal display device and transistor technology, applied in static indicators, nonlinear optics, instruments, etc., can solve problems such as difficult detection of flicker, incorrect alignment of liquid crystals, and easy generation of afterimages on the panel, so as to facilitate adjustment and improve Expressiveness, the effect of eliminating the afterimage problem

Active Publication Date: 2009-02-11
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, in such figure 1 In the shown structure where each pixel is composed of two sub-pixels with opposite polarities, it is actually difficult to detect flicker, it is difficult to optimize the common voltage signal, and the panel is prone to image sticking
In addition, when the polarities of two adjacent sub-pixels are opposite, a strong lateral electric field will be generated near the slit between them, and its strength exceeds the vertical electric field, which will make the liquid crystal here cannot be aligned correctly.

Method used

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  • Lcd device and drive method thereof
  • Lcd device and drive method thereof
  • Lcd device and drive method thereof

Examples

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no. 1 example

[0050] Figure 5 It is a schematic diagram of the liquid crystal display device in the first embodiment of the present invention, such as Figure 5 As shown, the liquid crystal display device in this embodiment includes scanning lines 510 (Gn, Gn+1, Gn+2, Gn+3 shown in the figure); data lines 520 arranged crosswise with the scanning lines 510 ( Dn, Dn+1, Dn+2, Dn+3, Dn+4, Dn+5 as shown in the figure); set in the pixel area 500 formed by the intersecting of the scanning lines 510 and the data lines 520 pixel electrodes and transistors, and the pixel electrodes in each pixel area 500 include a first sub-pixel electrode 501 and a second sub-pixel electrode 502, and the transistors in each pixel area include a sub-pixel electrode connected to the first sub-pixel electrode 501 The first transistor 503 and the second transistor 504 connected to the second sub-pixel electrode 502 .

[0051] In this embodiment, each row of pixel regions is driven by two data lines, and the gates of ...

no. 2 example

[0069] Image 6 It is a schematic diagram of the liquid crystal display device in the second embodiment of the present invention, such as Image 6 As shown, the liquid crystal display device in this embodiment includes scanning lines 610 (including Gn, Gn+1, Gn+2, and Gn+3 shown in the figure); data lines 620 arranged crosswise with the scanning lines 610 ( Including Dn, Dn+1, Dn+2, Dn+3, Dn+4, Dn+5 shown in the figure); arranged in the pixel area 600 formed by the crossing of the scanning lines 610 and the data lines 620 pixel electrodes and transistors, and the pixel electrodes in each pixel area 600 include a first sub-pixel electrode 601 and a second sub-pixel electrode 602, and the transistors in each pixel area include a sub-pixel electrode connected to the first sub-pixel electrode 601 The first transistor 603 and the second transistor 604 connected to the second sub-pixel electrode 602 .

[0070] In this embodiment, each row of pixel regions is driven by two data lin...

no. 3 example

[0088] This embodiment provides a method for driving a liquid crystal display device, Figure 7 It is a flow chart of the driving method of the liquid crystal display device according to the third embodiment of the present invention, combined below Figure 7 A third embodiment of the present invention will be described in detail.

[0089] The driving method of the liquid crystal display device in the present embodiment comprises steps:

[0090] Step 701: forming an array of pixel regions by intersecting scan lines and data lines;

[0091] Step 702: setting a first sub-pixel electrode and a second sub-pixel electrode in each of the pixel regions;

[0092] Step 703: setting a first transistor and a second transistor in each pixel area to control the first sub-pixel electrode and the second sub-pixel electrode respectively;

[0093] Step 704: Use two adjacent scanning lines to send scanning signals to control the first transistor and the second crystal in the pixel area of ​​t...

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Abstract

The invention discloses an LCD (liquid crystal display) including scan lines, data lines arranged across the scan lines, and pixel electrodes and transistors arranged in pixel areas formed by mutual cross of the scan lines and the data lines. The pixel electrode in each pixel area includes a first sub-pixel electrode and a second sub-pixel electrode, and the transistor in each pixel area includes a first transistor connected with the first sub-pixel electrode and a second transistor connected with the second sub-pixel electrode, wherein the grid electrodes of the first transistor and the second transistor are respectively and electrically connected with two adjacent scan lines, and the active electrodes respectively and electrically connected with the same data line. The invention further discloses a corresponding method for driving the LCD. The common voltage Vcom can be conveniently adjusted, and the ghost problem in the prior LCD can be improved by adopting the LCD and the driving method thereof.

Description

technical field [0001] The present invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display device and a driving method for the liquid crystal display device. Background technique [0002] Liquid Crystal Displays (LCDs) have the advantages of lightness, thinness, and low power consumption, and are widely used in modern information equipment such as computers, mobile phones, and personal digital assistants. Currently, the performance requirements of the market for liquid crystal display devices are: high contrast, high brightness, high color saturation, fast response, and wide viewing angle. [0003] In order to achieve a wide viewing angle, a variety of different display devices have been developed in the prior art, such as twisted nematic liquid crystal display (TN) plus wide viewing film (wide viewing film), coplanar switching (In- plane switching (IPS) liquid crystal display device, fringe field switching (Fringe Fiel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G09G3/36
Inventor 乔艳冰邱郁雯毛联波廖家德钟德镇简廷宪
Owner KUSN INFOVISION OPTOELECTRONICS
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