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Pixel structure

A pixel structure and pixel technology, applied in optics, instruments, electrical components, etc., can solve problems such as image retention, unequal area ratio, and different degrees of color shift

Active Publication Date: 2009-09-09
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide a multi-block vertically arranged pixel structure with mirror image settings, which solves the phenomenon that the image quality of the left and right viewing angles is different or the degree of color shift is different due to the unequal azimuth area ratio of a single sub-pixel, and the single sub-pixel The azimuth area ratio within the pixel is equal, but there is a problem of image retention

Method used

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no. 1 example

[0061] Figure 5 and Image 6 The first embodiment of the present invention is a schematic diagram showing the sub-pixel structure of a multi-block vertically aligned liquid crystal display, please refer to Figure 4 . In this embodiment, the sub-pixel 1000 includes a color filter substrate 400 and an array substrate 500, and the liquid crystal layer 600 is disposed between the color filter substrate 400 and the array substrate 500; wherein, the color filter substrate 400 includes a first The pretilt angle control structure 410, the array substrate 500 includes a second pretilt angle control structure 512, the pretilt angle control structure can align the liquid crystal, and the first pretilt angle control structure 410 and the second pretilt angle control structure 512 are arranged in a staggered manner, so as to The sub-pixels are divided into multiple azimuthal angle domains (azimuthal angle domain) 10I, 20I, 30I, 40I, 50II, 60II, 70II, 80II, wherein the angle of the azim...

no. 2 example

[0072] Figure 7 A top view of an example pixel structure 2000 according to the second embodiment of the present invention is shown. The sub-pixel structure 2000 of this embodiment is similar to the sub-pixel structure 1000 of the first embodiment, but the way of controlling the polar angle block is different. The main difference is that the sub-pixel structure 2000 of this embodiment adds a second thin film transistor 1003', so the sub-pixel 2000 is controlled by the first thin film transistor 1002' and the second thin film transistor 1003'; wherein, the second thin film transistor 1003' includes a second gate 1008', a second source 1023', a second The second drain 1025' and the second channel layer 1009'; the second thin film transistor 1003' is electrically connected to the second corner block II' through the second contact window 1011', and the source electrode 1004' of the first thin film transistor is electrically It is connected to the source 1023' of the second thin f...

no. 3 example

[0075] Please refer to Figure 8 and Figure 9 , the sub-pixel 700 of the third embodiment of the present invention has blocks (polar angle domains) I and II with different polar angles that are symmetrical up and down, and the sub-pixel 700 is separated by a gate 808 or a storage capacitor (Cst) 804 It is the block I of the first polar angle and the block II of the second polar angle, and the pixel electrodes of the block I of the first polar angle and the block II of the second polar angle are discontinuous structures.

[0076] In this example, please refer to Figure 8 , the upper and lower adjacent sub-pixels 700' and sub-pixels 700 have mirrored polar angle blocks I', II', and mirrored azimuth block configurations to achieve the effect of viewing angle compensation, for example, in the sub-pixel 700' : Azimuth block 10II' and 30II' are azimuth 45°, azimuth block 20'II' and 40'II' are azimuth 135°, azimuth block 50I' and block 70'I' are azimuth 225°, azimuth blocks 60I'...

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Abstract

The invention discloses a pixel structure, which is suitable for a multi-block vertical arrangement type liquid crystal display, comprising: a pixel array, which includes a plurality of adjacently arranged sub-pixels, a first substrate and a second substrate, each having a first A pretilt angle control structure and a second pretilt angle control structure; wherein, the first pretilt angle control structure and the second pretilt angle control structure are arranged in a staggered manner to separate the sub-pixels into a plurality of azimuthal angle domains ; In addition, the sub-pixels also include different polar angle domains, and the sub-pixels and adjacent pixels have mirrored corner domains and mirrored positions.

Description

technical field [0001] The present invention relates to a multi-domain vertical alignment (MVA) liquid crystal display, in particular to a pixel structure of a wide viewing angle liquid crystal display capable of improving pixel quality. Background technique [0002] At present, the thin film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display, TFT-LCD) technology tends to be high contrast ration, high brightness (high luminance), small color shift (little color shift), no gray scale inversion ( No gray scale inversion), no image retention, fast response time and wide viewing angle. [0003] Among them, the viewing angle problem has always existed in liquid crystal displays. In order to increase the viewing angle, one of the technologies currently used is to divide the liquid crystal area into multiple blocks, so that the liquid crystal molecules in different blocks can present various tilting directions, thereby achieving the purpose of increasin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/136G02F1/133H01L27/12
Inventor 黄乙白张庭瑞陈伯纶曹正翰
Owner AU OPTRONICS CORP
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