Pixel unit and pixel array thereof

A technology of pixel unit and pixel array, applied in instruments, nonlinear optics, optics, etc., can solve the problems of reducing transmittance, reducing transmittance, etc., so as to improve transmittance, overcome the problem of color shift, and have no color shift. effect of the phenomenon

Active Publication Date: 2014-07-23
SHANGHAI AVIC OPTOELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the transmittance of the FFS liquid crystal display is also affected by the two factors of the electrode width and the gap width between the electrodes. In the FFS liquid crystal display in the existing design, the electrode width is wider, which will reduce the transmittance; at the same time The gap between the electrodes is also wide, and the liquid crystal at the position below the gap cannot be driven, resulting in a decrease in transmittance. If the electrode or electrode gap width is shortened in a limited space to improve light transmittance, it is necessary to reasonably configure the pixel size and Arrangement method to meet the existing processing accuracy and avoid color cast

Method used

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  • Pixel unit and pixel array thereof
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  • Pixel unit and pixel array thereof

Examples

Experimental program
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Effect test

no. 1 example

[0021] For the first example, please refer to Figure 1 to Figure 5 .

[0022] combine figure 1 and figure 2 As shown, the pixel unit 100 includes a common electrode 10 , a first sub-pixel 20 , a second sub-pixel 30 , a pixel electrode 22 and a pixel electrode 32 .

[0023] The three data lines 52, 54 and 56 are arranged in parallel at intervals along the vertical direction. The two scanning lines 62 and 64 are arranged in parallel at intervals along the horizontal direction. The data lines 52 , 54 and 56 criss-cross with the scan lines 62 and 64 , and they enclose two quadrilateral regions, which are respectively defined as the first sub-pixel 20 and the second sub-pixel 30 . The first sub-pixel 20 and the second sub-pixel 30 respectively represent any one of R (red), G (green) and B (blue).

[0024] The pixel electrodes 22 and 32 are respectively located in the first sub-pixel 20 and the second sub-pixel 30 . The pixel electrodes 22 , 32 are located on the same layer ...

no. 2 example

[0032] For the second embodiment, please refer to Figure 5 to Figure 7 .

[0033] The pixel unit 100a in this embodiment includes three sub-pixels: one 30a and two 20a. The structures of the sub-pixels 20a and 30a are the same as those in the first embodiment, and the sub-pixel 20a is also provided with three through-slots 122a, and the sub-pixel 30a is provided with four through-slots 162a. The through grooves 122a, 162a are the same as the through grooves in the first embodiment, and will not be repeated here. In the pixel unit 100a, there are 10 through grooves in total. Compared with the pixel unit using sub-pixels in the prior art, the number of through grooves is increased. However, since the area of ​​each sub-pixel and the number of corresponding slots are different, the light transmission area of ​​each sub-pixel is different. Compared with the pixel unit of the prior art, the sub-pixel transmittance ratio of R, G and B is not within the standard value range Insi...

no. 3 example

[0039] For the third embodiment, please refer to Figure 8 .

[0040] The pixel unit 100b in this embodiment includes three sub-pixels: one 20b and two 30b. The structures of the sub-pixels 20b and 30b are the same as those in the first embodiment, and will not be repeated here. The difference is that, in the pixel unit 100b, there are 11 through grooves in total. Compared with the pixel unit using sub-pixels in the prior art, the number of through grooves is further increased, thereby improving the transmittance.

[0041] The pixel unit 100b of the third embodiment of the present invention can also form a pixel array to be applied to an FFS liquid crystal display. The arrangement of the corresponding pixel array is the same as that of the pixel arrays 1000a and 1000a' in the second embodiment, and will not be repeated here.

[0042] Although the pixel array 1000b (1000b') provided by the third embodiment of the present invention has a three-row structure, in actual applicat...

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PUM

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Abstract

The invention provides a pixel unit which comprises a public electrode and at least two sub-pixels. The public electrode is in a plane shape and is laid on the sub-pixels. The public electrode is divided into multiple areas according to the different sub-pixels, at least one through groove is formed in each area of the public electrode, all the areas of the public electrode are provided with different numbers of through grooves, and all the through grooves are the same in size or all the sub-pixels are the same in area.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a pixel unit and a pixel array thereof in an FFS (Fringe Field Switching, fringe field switching mode) liquid crystal display. Background technique [0002] FFS technology is a technology in which the fringe electric field generated between the pixel electrode and the common electrode on the TFT substrate enables the liquid crystal molecules between the electrodes and directly above the electrodes to rotate on a plane parallel to the glass substrate. The pixel electrodes and common electrodes are made of transparent conductors, so the transmittance of the liquid crystal display can be improved. [0003] However, the transmittance of the FFS liquid crystal display is also affected by the two factors of the electrode width and the gap width between the electrodes. In the FFS liquid crystal display in the existing design, the electrode width is wider, which will reduce the tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1343
Inventor 曹兆铿叶舟王艳丽林珧
Owner SHANGHAI AVIC OPTOELECTRONICS
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