OGS touch screen substrate bridge structure and manufacturing method thereof, OGS touch screen and its manufacturing method as well as display device

Patent metadata

Field	Value
Publication number	US-9939936-B2
Application number	US-201414768954-A
Country	US
Kind code	B2
Filing date	Dec 13, 2014
Priority date	Sep 11, 2014
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

A one-glass-solution (OGS) touch screen substrate bridge structure and its manufacturing method, an OGS touch screen and its manufacturing method as well as a display device. The OGS touch screen substrate bridge structure includes: one insulating layer and two layers of transparent electrodes provided on the substrate, the two layers of transparent electrodes are the first transparent electrode and the second transparent electrode, the insulating layer is provided on the first transparent electrode, and the second transparent electrode is provided on the insulating layer, the first transparent electrode includes several sub-electrodes arranged at a certain spacing from each other, the second transparent electrode keeps the sub-electrodes in electrical connection. In the above, by forming the bridge structure with one insulating layer and two layers of transparent electrodes, it is possible to avoid the provision of redundant insulating layer, thus decrease the possibility that the bridge structure become visible, improving the display effect of a display device.

First claim

What is claimed is:

1. A one-glass-solution (OGS) touch screen substrate bridge structure, comprising one insulating layer and two layers of transparent electrodes provided on the substrate,
wherein the two layers of transparent electrodes are a first transparent electrode and a second transparent electrode,
the insulating layer is provided on the first transparent electrode, and the second transparent electrode is provided on the insulating layer,
the first transparent electrode comprises a plurality of first sub-electrodes arranged at a certain spacing from each other,
the second transparent electrode comprises a plurality of second sub-electrodes which are insulated with each other and arranged at a certain spacing from each other,
each of the second sub-electrodes keeps only two adjacent first sub-electrodes in electrical connection.

2. The bridge structure according to claim 1 , wherein the insulating layer is provided with via holes, through which the second transparent electrode is coupled with the first sub-electrodes.

3. A one-glass-solution (OGS) touch screen comprising the bridge structure according to claim 1 .

4. The OGS touch screen according to claim 3 , further comprising black matrixes arranged on the substrate and metal leads provided on the black matrixes, wherein the insulating layer covers the metal leads.

5. A display device comprising the one-glass-solution (OGS) touch screen according to claim 3 .

6. A method for manufacturing a one-glass-solution (OGS) touch screen substrate bridge structure, comprising:
forming a first transparent electrode on a substrate, wherein the first transparent electrode comprises a plurality of first sub-electrodes;
forming an insulating layer on the first transparent electrode; and
forming a second transparent electrode on the insulating layer, wherein the second transparent electrode comprises a plurality of second sub-electrodes which are insulated with each other and arranged at a certain spacing from each other, and each of the second sub-electrodes keeps only two adjacent first sub-electrodes in electrical connection.

7. The method for manufacturing the OGS touch screen substrate bridge structure according to claim 6 , wherein via holes are formed in the insulating layer for exposing each of the first sub-electrodes;
the second transparent electrode is formed on the insulating layer so that the second transparent electrode is coupled with the first sub-electrodes through the via holes.

8. A method for manufacturing a one-glass-solution (OGS) touch screen, comprising the method for manufacturing the OGS touch screen substrate bridge structure according to claim 6 .

9. The method for manufacturing an OGS touch screen according to claim 8 , further comprising, before making the bridge structure:
forming black matrixes on the substrate and forming metal leads on above the black matrixes, the insulating layer covering the metal leads.

10. The OGS touch screen according to claim 3 , wherein the insulating layer is provided with via holes, through which the second transparent electrode is coupled with the first sub-electrodes.

11. The OGS touch screen according to claim 10 , further comprising black matrixes arranged on the substrate and metal leads provided on the black matrixes, wherein the insulating layer covers the metal leads.

12. The method for manufacturing an OGS touch screen according to claim 8 , wherein via holes are formed in the insulating layer for exposing each of the first sub-electrodes;
the second transparent electrode is formed on the insulating layer so that the second transparent electrode is coupled with the first sub-electrodes through the via holes.

13. The method for manufacturing an OGS touch screen according to claim 12 , further comprising, before making the bridge structure:
forming black matrixes on the substrate and forming metal leads on above the black matrixes, the insulating layer covering the metal leads.

14. The bridge structure according to claim 1 , wherein
each of the second sub-electrodes is in a shape of rectangle,
only a partial portion of each first sub-electrode is overlapped with an adjacent second sub-electrode electrically connected with this first sub-electrode in a direction perpendicular to the substrate.

Assignees

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

Inventors

• Meng Qingchao
• Gong Weigang
• Lu Chengzhu
• Wang Xiaofeng

Classifications

• G06F2203/04103

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

• H05K2201/0108

  Transparent · CPC title

• H05K3/10

  in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern · CPC title

• H05K3/4685

  Manufacturing of cross-over conductors · CPC title

• H05K2201/10128

  Display · CPC title