Method of manufacturing display panel, display panel, and display device

Patent metadata

Field	Value
Publication number	US-2017192266-A1
Application number	US-201615245837-A
Country	US
Kind code	A1
Filing date	Aug 24, 2016
Priority date	Jan 6, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A method of manufacturing a display panel, a display panel, and a display device are disclosed. The method includes: forming an alignment film over an entire surface of an array substrate motherboard, wherein the array substrate motherboard comprises at least one array substrate provided with a pad area on each of the array substrate; cell-assembling the array substrate motherboard with a color filter substrate motherboard to form a display panel motherboard, wherein the color filter substrate motherboard comprises at least one color filter substrate corresponding to the array substrate on the array substrate motherboard; cutting the display panel motherboard to obtain at least one display panel, wherein the display panel comprises the array substrate and the color filter substrate; and removing the alignment film on the pad area.

First claim

What is claimed is:

1 . A method of manufacturing a display panel, comprising:
forming an alignment film over an entire surface of an array substrate motherboard, wherein the array substrate motherboard comprises at least one array substrate provided with a pad area on each of the array substrate; cell-assembling the array substrate motherboard with a color filter substrate motherboard to form a display panel motherboard, wherein the color filter substrate motherboard comprises at least one color filter substrate corresponding to the array substrate on the array substrate motherboard; cutting the display panel motherboard to obtain at least one display panel, wherein the display panel comprises the array substrate and the color filter substrate; and removing the alignment film on the pad area.

2 . The method of manufacturing a display panel according to claim 1 , wherein operation of removing the alignment film on the pad area is conducted subsequent to the cutting.

3 . The method of manufacturing a display panel according to claim 2 , wherein following the cutting, the alignment film on the pad area of the array substrate of the display panel is exposed, and the color filter substrate of the display panel is used as a mask to remove the alignment film on the pad area of the array substrate.

4 . The method of manufacturing a display panel according to claim 1 , wherein operation of removing the alignment film on the pad area is conducting prior to the cell-assembling.

5 . The method of manufacturing a display panel according to claim 4 , wherein a photoresist pattern is formed on the array substrate motherboard, the photoresist pattern comprising a photoresist removed area and a photoresist reserved area, the photoresist removed area being corresponding to the pad area;
the alignment film in the pad area is removed by using the photoresist pattern; and the photoresist pattern is removed after removing the alignment film in the photoresist removed area.

6 . The method of manufacturing a display panel according to claim 1 , wherein the array substrate motherboard comprises a plurality of array substrates.

7 . The method of manufacturing a display panel according to claim 1 , wherein the alignment film on the pad area is removed by a wet etching process.

8 . The method of manufacturing a display panel according to claim 7 , wherein the temperature employed for the wet etching process ranges from 60 degrees Celsius to 70 degrees Celsius.

9 . The method of manufacturing a display panel according to claim 1 , wherein the alignment film on the pad area is removed by a dry etching process.

10 . The method of manufacturing a display panel according to claim 9 , wherein the reaction gas employed for the dry etching process comprises at least one selected from the group consisting of sulfur hexafluoride and oxygen.

11 . The method of manufacturing a display panel according to claim 3 , wherein the alignment film on the pad area is removed by a wet etching process.

12 . The method of manufacturing a display panel according to claim 11 , wherein the temperature employed for the wet etching process ranges from 60 degrees Celsius to 70 degrees Celsius.

13 . The method of manufacturing a display panel according to claim 3 , wherein the alignment film on the pad area is removed by a dry etching process.

14 . The method of manufacturing a display panel according to claim 13 , wherein the reaction gas employed for the dry etching process comprises at least one selected from the group consisting of sulfur hexafluoride and oxygen.

15 . The method of manufacturing a display panel according to claim 5 , wherein the alignment film on the pad area is removed by a wet etching process.

16 . The method of manufacturing a display panel according to claim 15 , wherein the temperature employed for the wet etching process ranges from 60 degrees Celsius to 70 degrees Celsius.

17 . The method of manufacturing a display panel according to claim 5 , wherein the alignment film on the pad area is removed by a dry etching process.

18 . The method of manufacturing a display panel according to claim 17 , wherein the reaction gas employed for the dry etching process comprises at least one selected from the group consisting of sulfur hexafluoride and oxygen.

19 . A display panel, manufactured by the method according to claim 1 .

20 . A display device, comprising the display panel according to claim 19 .

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co

Inventors

• Li Wei
• Luo Huiyue
• Shin Jae Gwan
• An Heyu
• Li Guanchao

Classifications

• G02F1/133514

  Colour filters · CPC title

• G02F2001/133792

  Physics · mapped topic

• G02F1/1337 Primary

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title

• G02F2001/133354

  Physics · mapped topic

• G02F1/133788

  by light irradiation, e.g. linearly polarised light photo-polymerisation · CPC title