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Pixel electrode

A technology of pixel electrodes and sub-pixel areas, applied in nonlinear optics, instruments, optics, etc., can solve the problems of worsening dark lines, affecting the efficiency of liquid crystal, affecting the transmittance of liquid crystal display panels, etc., so as to control dark lines and improve wear resistance. The effect of transmittance

Inactive Publication Date: 2019-04-26
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a pixel electrode to solve the problem that the existing pixel electrode deteriorates the dark lines due to the influence of the complex electric field at the boundary between the main body and the branch, affects the liquid crystal efficiency, and further affects the transmittance of the liquid crystal display panel.

Method used

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Embodiment 1

[0031] Such as image 3 , Figure 4 As shown, this embodiment provides a pixel electrode 100 , including a first pixel electrode 20 and a plurality of second pixel electrodes 30 , and the second pixel electrodes 30 are connected to the first pixel electrodes 20 .

[0032] The first pixel electrode 20 divides a sub-pixel area into a plurality of chips, and in each chip, the second pixel electrode 30 extends from the first pixel electrode 20 in different directions, and the second pixel electrodes 30 in adjacent chips The extension directions of the two pixel electrodes 30 are different.

[0033] The first pixel electrode 20 in this embodiment has a cross-shaped structure, which divides a sub-pixel area into four chips, and the second pixel electrodes 30 in each chip are arranged at intervals and in parallel.

[0034] The second pixel electrode 30 includes a first sub-branch 31 and a second sub-branch 32, one end of the second sub-branch 32 is connected to the first sub-branch...

Embodiment 2

[0045] Such as Figure 5 As shown, different from the first embodiment, the first width L1 of the first sub-branch 31 in this embodiment is greater than the second width L2 of the second sub-branch 32 . The second sub-branch 32 is an inverted trapezoid, and the width of the second sub-branch gradually decreases along the direction in which the symmetry axis 322 of the second sub-branch 32 approaches the first pixel electrode 20 .

[0046] In other embodiments, the second sub-branch 32 of inverted trapezoidal shape can be set near the center of the cross of the first pixel electrode 20, and other junctions away from the center of the cross can be set as Figure 4 The second sub-branch of the positive trapezoidal shape shown, this is due to the low efficiency of the liquid crystal molecules located near the center of the cross of the first pixel electrode 20. The mutual influence of the electric field makes it difficult to achieve a deflection with an azimuth angle of 45 degree...

Embodiment 3

[0048] Such as Figure 6 As shown, compared with Embodiment 1, the first pixel electrode 20 in this embodiment includes a central trunk portion 21 and a lateral trunk portion 22, and the central trunk portion 21 and the lateral trunk portions 22 together A sub-pixel area is divided into four chips, the central trunk part 21 is cross-shaped, and the lateral trunk parts 22 are respectively arranged on two opposite sides of the central trunk part 21, and the second pixel electrodes in the four chips are 30 outside border surround.

[0049] Such as Figure 7 as shown, Figure 7 It is a schematic diagram of the structure at the boundary between the second pixel electrode 30 and the first pixel electrode 20 in this embodiment, and the first and last two ends of the second pixel electrode 30 in one chip are respectively connected to the central trunk portion 21 1. The lateral trunk portion 22 is connected, and at the connection boundary with the central trunk portion 21 and the la...

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Abstract

A pixel electrode comprises a first pixel electrode body and a plurality of second pixel electrode bodies. Each second pixel electrode body comprises a first branch part and a second branch part, wherein one end of the second branch part is connected with the first pixel electrode body, the other end of the second branch part is connected with the first branch part, and the first width of the first branch part and the second width of the second branch part are different. The widths of the branch parts are changed through the joints of a main part and the branch parts of the pixel electrode sothat dark fringes can be effectively controlled, and the liquid crystal efficiency and the penetration rate of a liquid crystal display panel are improved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel electrode. Background technique [0002] The transmittance of a liquid crystal display panel is mainly affected by three physical factors, which are the total absorption and transmittance of the film layer in the transmittance region, the absolute aperture ratio, and the liquid crystal efficiency. When the product technology is advanced, how to use the design of the pixel electrode pattern to improve the liquid crystal efficiency without changing the film absorption and the size of the opening area becomes an important way to improve the transmittance. A general pixel electrode includes a trunk and a branch structure, such as figure 1 As shown, the main part includes a central main part 11 with a "cross" shape, a lateral main part 13 located on the periphery of the central main part 11, and a pixel electrode branch 12. After the pixel electrode is energized, an ...

Claims

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Application Information

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IPC IPC(8): G02F1/1343
CPCG02F1/134309
Inventor 曹武
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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