Display panel and cutting method thereof, and display device

Patent metadata

Field	Value
Publication number	US-12290950-B2
Application number	US-202117432717-A
Country	US
Kind code	B2
Filing date	Mar 17, 2021
Priority date	Apr 7, 2020
Publication date	May 6, 2025
Grant date	May 6, 2025

Abstract

A cutting method of a display panel comprises: along a first cutting line (A), cutting a color-film substrate of a to-be-cut display panel ( 501 ); and along a second cutting line (B), cutting an array substrate of the to-be-cut display panel to obtain a display panel; wherein, in a target direction parallel to the to-be-cut display panel, the second cutting line (B) is located between the first cutting line (A) and a display region of the to-be-cut display panel, and in the target direction, a distance between the first cutting line (A) and the second cutting line (B) is a preset distance ( 502 ).

First claim

The invention claimed is:

1. A cutting method of a display panel, wherein the method comprises:
along a first cutting line, cutting a color-film substrate of a to-be-cut display panel; and
along a second cutting line, cutting an array substrate of the to-be-cut display panel to obtain a display panel;
wherein, in a target direction perpendicular to an edge of the to-be-cut display panel, the second cutting line is located between the first cutting line and a display region of the to-be-cut display panel, and in the target direction, a distance between the first cutting line and the second cutting line is a preset distance,
wherein the color-film substrate comprises a first edge away from a lead region, the first cutting line comprises a first sub-cutting line away from the lead region, and the step of, along the first cutting line, cutting the color-film substrate of the to-be-cut display panel comprises:
along the first sub-cutting line, cutting the first edge of the color-film substrate of the to-be-cut display panel,
wherein the color-film substrate further comprises a third edge and a fourth edge adjacent to the first edge, the first cutting line further comprises a third sub-cutting line and a fourth sub-cutting line adjacent to the first sub-cutting line, and the step of, along the first cutting line, cutting the color-film substrate of the to-be-cut display panel further comprises:
along the third sub-cutting line, cutting the third edge of the color-film substrate of the to-be-cut display panel; and
along the fourth sub-cutting line, cutting the fourth edge of the color-film substrate of the to-be-cut display panel.

2. The method according to claim 1 , wherein the array substrate comprises a second edge away from the lead region, the second cutting line comprises a second sub-cutting line away from the lead region, and the step of, along the second cutting line, cutting the array substrate of the to-be-cut display panel comprises:
along the second sub-cutting line, cutting the second edge of the array substrate of the to-be-cut display panel;
wherein, in the target direction, a distance between the first sub-cutting line and the second sub-cutting line is the preset distance.

3. The method according to claim 1 , wherein the array substrate further comprises a fifth edge and a sixth edge adjacent to the second edge, the second cutting line further comprises a fifth sub-cutting line and a sixth sub-cutting line adjacent to the second sub-cutting line, and the step of, along the second cutting line, cutting the array substrate of the to-be-cut display panel further comprises:
along the fifth sub-cutting line, cutting the fifth edge of the array substrate of the to-be-cut display panel; and
along the sixth sub-cutting line, cutting the sixth edge of the array substrate of the to-be-cut display panel;
wherein, in the target direction, a distance between the third sub-cutting line and the fifth sub-cutting line is the preset distance, and a distance between the fourth sub-cutting line and the sixth sub-cutting line is the preset distance.

4. The method according to claim 1 , wherein the preset distance is greater than or equal to a preset cutting error precision, and less than or equal to twice the preset cutting error precision.

5. The method according to claim 4 , wherein the preset cutting error precision is greater than or equal to 0.05 mm and less than or equal to 0.09 mm.

6. The method according to claim 1 , wherein a cutter wheel is used to cut the to-be-cut display panel.

7. The method according to claim 6 , wherein, along the first cutting line, an upper cutter wheel is used to cut the color-film substrate of the to-be-cut display panel.

8. The method according to claim 6 , wherein, along the second cutting line, a lower cutter wheel is used to cut the array substrate of the to-be-cut display panel.

Assignees

• Fuzhou Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wang Jinliang
• Huang Biqiang
• Chen Jixiang
• Fang Xin

Classifications

• Y10T83/00

  Cutting · CPC title

• G02B5/28

  Interference filters · CPC title

• B29D11/00634

  Production of filters · CPC title

• B26D1/141 Primary

  for thin material, e.g. for sheets, strips or the like · CPC title

• B26D11/00 Primary

  Combinations of several similar cutting apparatus · CPC title