Display panel comprising display region and narrow width non-display region and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-12336286-B2
Application number	US-202117376417-A
Country	US
Kind code	B2
Filing date	Jul 15, 2021
Priority date	Jun 28, 2019
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

A display panel and a manufacturing method thereof. The display panel has a display region and a non-display region located on at least one side of the display region and includes a first substrate. The first substrate has a first base located at a non-display region and a second base located at the display region, and the first base includes a first surface, a second surface perpendicular to the first surface, and at least one third surface connecting the first surface and the second surface. The second surface is inseparable from the first substrate. The display panel further includes multiple first connection portions disposed on the second surface and multiple first signal lines which trace through the first surface and the third surface. The multiple first connection portions are electrically connected to the multiple first signal lines correspondingly to transmit display signals.

First claim

What is claimed is:

1. A method for manufacturing a display panel, comprising:
providing a second substrate corresponding to a plurality of display panels;
processing a respective portion of the second substrate corresponding to each of the plurality of display panels to form at least one third surface;
cutting, at a junction of a second surface and the at least one third surface, the second substrate in a direction perpendicular to the second substrate to form a plurality of first substrates, wherein each first substrate comprises a first surface, the second surface is perpendicular to the first surface, and the at least one third surface connecting the first surface and the second surface;
forming a repair structure on at least part of the at least one third surface of each first substrate;
making a thickness of a first base of each first substrate on the second surface in a direction perpendicular to the first surface less than a thickness of the first base on the first surface in the direction perpendicular to the first surface; and
forming, on the second surface of each first substrate, a first patterned structure having a plurality of first connection portions electrically connected to a plurality of first signal lines to transmit display signals.

2. The method for manufacturing the display panel of claim 1 , wherein the first patterned structure further comprises portions of the plurality of first signal lines located on the second surface and electrically connected to the plurality of first connection portions, respectively.

3. The method for manufacturing the display panel of claim 1 , wherein processing the respective portion of the second substrate corresponding to each of the plurality of display panels to form the at least one third surface further comprises:
performing a chamfering process or a punching process on the respective portion of the second substrate corresponding to each of the plurality of display panels to form the at least one third surface.

4. The method for manufacturing the display panel of claim 3 , wherein the at least one third surface comprises one third surface and performing the chamfering process or the punching process on the respective portion of the second substrate corresponding to each of the plurality of display panels to form the at least one third surface further comprises:
punching the second substrate to form a plurality of connection holes corresponding to the plurality of display panels, wherein each of the plurality of display panels comprises one connection hole exposing the one third surface and the plurality of first signal lines trace through connection holes.

5. The method for manufacturing the display panel of claim 4 , before cutting the second substrate in the direction perpendicular to the second substrate to form the plurality of first substrates, the method further comprises:
forming a second patterned structure on the first surface of the respective portion of the second substrate corresponding to each of the plurality of display panels; and
forming a full-surface structure in each of the plurality of connection holes, and the second patterned structure comprises portions of the plurality of first signal lines located on the first surface.

6. The method for manufacturing the display panel of claim 5 , wherein during forming the first patterned structure on the second surface of each first substrate, forming a third patterned structure on the one third surface of each first substrate, the third patterned structure comprises portions of the plurality of first signal lines located on the third surface;
wherein forming the third patterned structure on the third surface of each first substrate further comprises:
etching the repair structure on the third surface to form a repair line; and
etching the full-surface structure on the third surface to form a fourth patterned structure; wherein the third patterned structure comprises the repair line and the fourth patterned structure.

7. The method for manufacturing the display panel of claim 3 , after performing the chamfering process on the respective portion of the second substrate corresponding to each of the plurality of display panels to form the at least one third surface, further comprising:
forming a fifth patterned structure on the first surface and the at least one third surface of the respective portion of the second substrate corresponding to each of the plurality of display panels; wherein the fifth patterned structure comprises portions of the plurality of first signal lines on the first surface and the at least one third surface.

Assignees

• Yungu Gu An Tech Co Ltd
• Yungu Guan Tech Co Ltd

Inventors

• Zhang Xiuyu
• Huang Jinyan

Classifications

• H10K59/82

  Interconnections, e.g. terminals (H10K59/131, H10K59/179 take precedence) · CPC title

• H10D86/411

  characterised by materials, geometry or structure of the substrates · CPC title

• H10D86/0212

  comprising manufacture, treatment or coating of substrates · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title