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a pixel electrode

A technology of pixel electrode and trunk electrode, applied in the field of flat panel display, can solve the problems of poor visual effect, non-conformance, obvious brightness difference, etc., and achieve the effect of improving the large viewing angle deviation, increasing the relative area, and improving the penetration rate.

Active Publication Date: 2019-12-31
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large area of ​​the sub-area (accounting for about 60% of the pixel opening area), the penetration rate of the entire pixel will be greatly sacrificed, which will increase the power consumption of the backlight, which is not in line with the current concept of green environmental protection and energy saving.
In addition, since the main area is full of high-brightness pixels and the sub-area is low-brightness pixels, the high-brightness pixels and low-brightness pixels are too concentrated, making the brightness difference between the two areas too obvious, resulting in poor visual effects
[0005] The conventional "m"-shaped pixel electrode, through continuous optimization of the pixel electrode structure, optimizes the electric field distribution of the electrode, so that the direction of the liquid crystal can be optimized, but it has no positive effect on the transmittance of the pixel electrode

Method used

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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, it is a schematic diagram of a traditional 4-zone pixel electrode, figure 2 For the pixel electrodes in the 4 regions with bridging bridges, the first main electrode 101 and the second main electrode 102 are included, and the first main electrode 101 and the second main electrode 102 are vertically intersected to set the pixel electrodes as four liquid crystals. In the alignment area, a plurality of branch electrodes 103 are arranged at equal intervals in each of the liquid crystal alignment areas, and the branch electrodes 103 are strip electrodes with the same width, and each branch electrode 103 is connected to the first trunk The included angle between the electrodes 101 or the second stem electrodes 102 is preferably 45 degrees, and there is a bridging connection between the adjacent branch electrodes 103 in the same liquid crystal alignment region.

[0025] refer to figure 2 To further illustrate, the angle between the direction of t...

Embodiment 2

[0028] Such as image 3 Shown is a conventional 8-zone pixel electrode, Figure 4 It is an 8-region pixel electrode with a bridge structure in the sub-region, and the sub-region includes a first main electrode 201 and a second main electrode 202, and the first main electrode 201 and the second main electrode 202 vertically intersect to set the pixel electrode There are four liquid crystal alignment regions, and a plurality of branch electrodes 203 are arranged at equal intervals in each of the liquid crystal alignment regions. The branch electrodes 203 are strip electrodes with equal width, and each branch electrode 203 is connected to the The included angle between the first trunk electrode 201 or the second trunk electrode 202 is preferably 45 degrees, and there is a bridging connection between the adjacent branch electrodes 203 in the same liquid crystal alignment region.

[0029] refer to Figure 4 To further illustrate, the angle between the bridge direction and the bra...

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Abstract

The invention provides a pixel electrode. The pixel electrode is characterized in that two main electrodes are included and perpendicularly intersect to divide the pixel electrode into multiple liquid crystal alignment areas, multiple branch electrodes are arranged in each liquid crystal alignment area, and the included angle between each branch electrode and the main electrodes is 45 degrees; a bridge is connected between every two adjacent branch electrodes in the same liquid crystal alignment area, wherein the included angle between the direction of the bridge and the corresponding branch electrode is 45 degrees, and the bridge is connected with the two corresponding adjacent branch electrodes in a lap-joint mode. The tree age and distribution of the bridges are determined according to the specific design, the relative area of a strong electric field is increased by connecting the bridges arranged between the branch electrodes, and therefore on the condition that the pixel aperture ratio is invariable, the pixel penetration rate is increased to a certain extent, and the large view angle color cast phenomenon is improved.

Description

technical field [0001] The invention relates to the field of flat panel display, in particular to a pixel electrode in the field of PSVA. Background technique [0002] A liquid crystal display (LCD), one of the most widely used flat panel displays, includes a pair of panels provided with field generating electrodes such as pixel electrodes and common electrodes, and a liquid crystal (LC) layer provided between the two panels. The LCD displays images when a voltage is applied to the field generating electrodes to generate an electric field in the LC layer that determines the orientation of LC molecules in the liquid crystal layer, thereby adjusting the polarization of light incident to the liquid crystal layer. [0003] In a traditional VA mode liquid crystal panel, the main factors of pixel transmittance include liquid crystal molecular gap, backlight source and data voltage and other factors. In the current pixel design, the BM on the CF substrate is used for shading. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1343
CPCG02F1/134309
Inventor 赵丽徐向阳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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