Touch control structure and manufacturing method thereof, and display device

Patent metadata

Field	Value
Publication number	US-10895944-B2
Application number	US-201816339480-A
Country	US
Kind code	B2
Filing date	May 17, 2018
Priority date	Aug 15, 2017
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

A touch control structure and a manufacturing method thereof, and a display device. The manufacturing method of the touch control structure includes providing a thin film substrate; providing a base substrate, and affixing the thin film substrate on the base substrate; forming a laminate structure on the thin film substrate for implementation of touch control functions; removing the thin film substrate with the laminate structure formed on top thereof from the base substrate.

First claim

What is claimed is:

1. A method for manufacturing a touch control structure, the touch control structure having a touch region and a non-touch region, the method comprising:
proving a film base;
providing a base substrate;
forming a first conductive layer on the film base to cover the film base;
attaching the film base on which the first conductive layer is formed thereon to the base substrate;
forming a laminated structure on the film base, the laminated structure being configured for implementing a touch control function; and
removing the film base on which the laminated structure is formed from the base substrate,
wherein the forming the laminated structure comprises:
performing a patterning process on the first conductive layer to form a plurality of electrode patterns, wherein the plurality of electrode patterns comprises a plurality of first touch electrodes disposed in the touch region, a plurality of second touch electrodes disposed in the touch region, and a plurality of first conductive traces disposed in the non-touch region, and each of the first touch electrodes comprises a plurality of first sub-electrodes; and
forming a plurality of metal traces on the plurality of first conductive traces, the plurality of metal traces being located in the non-touch region,
wherein each of plurality of first conductive traces is between the film base and one of the plurality of metal traces and is in contact with both the film base and the one of the plurality of metal traces.

2. The method according to claim 1 , further comprising:
after attaching the film base to the base substrate, forming an alignment mark on the first conductive layer, the alignment mark being configured for implementing an alignment function.

3. The method according to claim 1 , wherein
each of the plurality of metal traces comprises an overlap electrode adjacent to an edge of the touch region, and the plurality of first touch electrodes and the plurality of second touch electrodes are correspondingly connected with the plurality of metal traces through a plurality of the overlap electrodes.

4. The method according to claim 3 , wherein the forming the laminated structure further comprises:
forming a first insulating layer on the film base,
wherein the first insulating layer covers both the plurality of first touch electrodes and the plurality of second touch electrodes, and a plurality of vias are formed in the first insulating layer to expose the plurality of first sub-electrodes.

5. The method according to claim 4 , wherein the forming the laminated structure further comprises:
forming a second conductive layer on the film base by using a patterning process,
wherein the second conductive layer comprises a plurality of bridge electrodes disposed in the touch region and a plurality of second conductive traces disposed in the non-touch region,
each of the bridge electrodes covers two of the vias, two adjacent first sub-electrodes are connected with each other by one of the bridge electrodes, and
the plurality of second conductive traces are formed on the plurality of metal traces and cover the plurality of metal traces.

6. The method according to claim 5 , wherein the forming the laminated structure further comprises:
forming a second insulating layer on the film base on which the second conductive layer is formed,
wherein the second insulating layer covers an entirety of the touch region.

7. The method according to claim 4 , wherein the first insulating layer further covers each of the plurality of metal traces, except for a portion of each of the plurality of metal traces in a bonding region.

8. The method according to claim 7 , wherein the forming the laminated structure further comprises:
forming a second conductive layer on the film base by using a patterning process,
wherein the second conductive layer comprises a plurality of bridge electrodes disposed in the touch region and a plurality of bonding electrodes disposed in the non-touch region,
each of the bridge electrodes covers two of the vias, two adjacent first sub-electrodes are connected with each other by one of the bridge electrodes, and
the plurality of bonding electrodes cover a portion of each of the plurality of metal traces located in the bonding region.

9. The method according to claim 8 , wherein the forming the laminated structure further comprises:
forming a second insulating layer on the film base on which the second conductive layer is formed,
wherein the second insulating layer covers the film base, except the bonding region.

Assignees

• Hefei Xinsheng Optoelectronics Technology Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Wang Jing
• Zhang Lei
• Xu Zouming
• Zhang Guiyu
• Zheng Qitao
• Wu Lingyan
• Chen Qicheng
• Li Dong
• Kuo Tsung Chieh
• Xie Xiaodong

Classifications

• H01B5/14

  comprising conductive layers or films on insulating-supports · CPC title

• H01B3/44

  vinyl resins; acrylic resins (silicones H01B3/46) · CPC title

• H01B3/306

  Polyimides or polyesterimides · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title