Liquid crystal display panel and electronic device

Patent metadata

Field	Value
Publication number	US-2020333650-A1
Application number	US-201916496437-A
Country	US
Kind code	A1
Filing date	May 17, 2019
Priority date	Apr 17, 2019
Publication date	Oct 22, 2020
Grant date	—

Abstract

A blind via hole region of a liquid crystal display panel is provided with a transparent support section, such that a cell thickness of the liquid crystal display panel from a display region to the blind via hole region is uniform, thereby prevents a Newton ring structure from affecting the imaging of a camera positioned below the blind via hole.

First claim

What is claimed is:

1 . A liquid crystal display panel, comprising a blind via hole region and a display region positioned outside the blind via hole region, wherein the display region is provided with a plurality of pixel units arranged in an array, and the blind via hole region is provided with a transparent support section.

2 . The liquid crystal display panel according to claim 1 , wherein the transparent support section comprises a plurality of transparent spacers, and the transparent spacers are arranged in an array in the blind via hole region.

3 . The liquid crystal display panel according to claim 2 , wherein the transparent spacers are arranged in an annular array around a center point of the blind via hole region to form a plurality of support rings, the support rings are arranged in a direction from the center point of the blind via hole region toward an edge of the blind via hole region.

4 . The liquid crystal display panel according to claim 3 , wherein a radius of each of the support rings near the center point of the blind via hole region is equal to a sum of lengths of three to four pixel units of the pixel units, a spacing between any two adjacent support rings is equal to a sum of the lengths of three to four pixel units of the pixel units.

5 . The liquid crystal display panel according to claim 3 , wherein a straight-line distance between any two adjacent transparent spacers among the support rings is equal to a sum of lengths of three to five pixel units of the pixel units.

6 . The liquid crystal display panel according to claim 1 , wherein a refractive index of material of the transparent support section ranges between 1.2 and 1.7.

7 . The liquid crystal display panel according to claim 1 , wherein the display region is provided with a plurality of sub-spacers and a height of each of the sub-spacers is less than a height of the transparent support section.

8 . The liquid crystal display panel according to claim 7 , wherein materials of the sub-spacers and the transparent support section are both photoresists.

9 . The liquid crystal display panel according to claim 8 , wherein the sub-spacers and the transparent support section are formed by exposing the photoresist using a same half gray-scale mask and by developing using a developing solution.

10 . The liquid crystal display panel according to claim 1 , wherein the blind via hole region has a buffer layer and a protective layer, and the transparent support section is positioned between the buffer layer and the protective layer of the blind via hole region.

11 . An electronic device, comprising a liquid crystal display panel and a camera, wherein the liquid crystal display panel has a blind via hole region and a display region positioned outside the via hole region, the display region is provided with a plurality of pixel units arranged in an array, the blind via region is provided with a transparent support section, and the camera is positioned on a back surface of a light emitting surface of the liquid crystal display panel and corresponds to the blind via hole region.

12 . The electronic device according to claim 11 , wherein the transparent support section comprises a plurality of transparent spacers, and the transparent spacers are arranged in an array in the blind via hole region.

13 . The electronic device according to claim 12 , wherein the transparent spacers are arranged in an annular array around a center point of the blind via hole region to form a plurality of support rings, the support rings are arranged in a direction from the center point of the blind via hole region toward an edge of the blind via hole region.

14 . The electronic device according to claim 13 , wherein a radius of each of the support rings near the center point of the blind via hole region is equal to a sum of lengths of three to four pixel units of the pixel units, a spacing between any two adjacent support rings is equal to a sum of the lengths of three to four pixel units of the pixel units.

15 . The electronic device according to claim 13 , wherein, a straight-line distance between any two adjacent transparent spacers among the support rings is equal to a sum of lengths of three to five pixel units of the pixel units.

16 . The electronic device according to claim 11 , wherein a refractive index of material of the transparent support section ranges between 1.2 and 1.7.

17 . The electronic device according to claim 11 , wherein the display region is provided with a plurality of sub-spacers and a height of each of the sub-spacer is less than a height of the transparent support section.

18 . The electronic device according to claim 17 , wherein materials of the sub-spacers and the transparent support section are both a photoresist.

19 . The electronic device according to claim 18 , wherein the sub-spacers and the transparent support section are formed by exposing the photoresist using the same half gray-scale mask and by developing using a developing solution.

20 . The electronic device according to claim 11 , wherein the blind via hole region has a buffer layer and a protective layer, and the transparent support section is positioned between the buffer layer and the protective layer of the blind via hole region.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Ma Guizhi
• Gong Fang

Classifications

• G02F1/13318

  Circuits comprising a photodetector · CPC title

• G02F1/13396 Primary

  Spacers having different sizes · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F1/13394 Primary

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• G02F2203/30

  Gray scale · CPC title