Embedded touch panel display device

Patent metadata

Field	Value
Publication number	US-11791292-B1
Application number	US-202217741916-A
Country	US
Kind code	B1
Filing date	May 11, 2022
Priority date	Mar 31, 2022
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

An embedded touch panel display device includes: a display unit having a display surface and a non-display surface opposite to the display surface; a touch-control unit disposed inside the display unit; a conductive frame disposed on one side of the display unit and facing the non-display surface thereof; an insulating ink and a first conductive ink disposed on at least one sidewall of the display unit and extended to the non-display surface, in which the first conductive ink overlaps the insulating ink; and a double-sided adhesive disposed between the display unit and the conductive frame to secure them. The first conductive ink and the conductive frame are electrically connected to each other to form an electrostatic discharge path. The present invention can prevent the peripheral area of the viewed area from a blackening phenomenon induced by excessively high electrostatic voltage.

First claim

What is claimed is:

1. An embedded touch panel display device, comprising
a display unit, having a display surface and a non-display surface opposite to the display surface;
a touch-control unit, disposed inside the display unit;
a conductive frame, disposed on one side of the display unit and facing the non-display surface of the display unit;
an insulating ink disposed on at least one sidewall of the display unit and extended to the non-display surface and a level equal to or lower than a level of the touch-control unit;
a first conductive ink disposed on the at least one sidewall of the display unit and extended to the non-display surface, wherein at least a portion of the first conductive ink is disposed on the insulating ink;
a second conductive ink disposed on the at least one sidewall of the display unit and extended to a level higher than a level of the touch-control unit; and
a double-sided adhesive, disposed between the display unit and the conductive frame to secure the display unit and the conductive frame,
wherein the first conductive ink and the conductive frame are electrically connected to each other to form an electrostatic discharge path.

2. The embedded touch panel display device according to claim 1 , wherein the double-sided adhesive is made of a conductive material, and a portion of the double-sided adhesive is disposed on a region where the first conductive ink is disposed on the display unit, such that the electrostatic discharge path is formed by the first conductive ink, the double-sided adhesive, and the conductive frame.

3. The embedded touch panel display device according to claim 1 , wherein the double-sided adhesive is made of a non-conductive material, and the first conductive ink extended to the non-display surface is further extended to the conductive frame and cooperates with the conductive frame to form the electrostatic discharge path.

4. The embedded touch panel display device according to claim 1 , wherein the first conductive ink is disposed on the at least one sidewall of the display unit and extended to a level higher than a level of the touch-control unit.

5. The embedded touch panel display device according to claim 4 , wherein a bare portion of the touch-control unit is revealed by the display unit, and at least one of the first conductive ink and the insulating ink is extended to the bare portion of the touch-control unit.

6. The embedded touch panel display device according to claim 4 , wherein a bare portion of the display unit is revealed by the touch-control unit, at least one of the first conductive ink and the insulating ink is extended to the bare portion of the display unit.

7. The embedded touch panel display device according to claim 1 , wherein the second conductive ink is extended to the first conductive ink and electrically connected with the first conductive ink.

8. The embedded touch panel display device according to claim 1 , wherein a bare portion of the touch-control unit is revealed by the display unit, and the second conductive ink is extended to the bare portion of the touch-control unit.

9. The embedded touch panel display device according to claim 1 , wherein a bare portion of the display unit is revealed by the touch-control unit, and the second conductive ink is extended to the bare portion of the display unit.

10. The embedded touch panel display device according to claim 1 , wherein a portion of the first conductive ink is disposed on the insulating ink and extended to a region of the insulating ink that is extended to the display surface.

11. The embedded touch panel display device according to claim 1 , wherein the display unit has a viewed area and a peripheral area surrounding the viewed area, and the first conductive ink is extended to a region of the display surface corresponding to the peripheral area.

12. The embedded touch panel display device according to claim 11 , wherein the first conductive ink is selected from a group including graphene or carbon-containing materials.

13. The embedded touch panel display device according to claim 1 , wherein the display unit has a viewed area and a peripheral area surrounding the viewed area, and the first conductive ink is extended to a region of the non-display surface corresponding to the peripheral area.

14. The embedded touch panel display device according to claim 13 , wherein the first conductive ink is selected from a group including graphene or carbon-containing materials.

15. The embedded touch panel display device according to claim 1 , wherein the display unit has a viewed area and a peripheral area surrounding the viewed area, and the first conductive ink is extended to a region of the non-display surface corresponding to the viewed area.

Assignees

• Interface Tech Chengdu Co Ltd
• Interface Optoelectronics Shenzhen Co Ltd
• Interface Optoelectronics Wuxi Co Ltd
• General Interface Solution Ltd

Inventors

• Jen Chen Ming
• Wu Pei Hsun
• Lee Hung Chien
• Huang Yen Heng

Classifications

• H10W90/00

  Package configurations · CPC title

• H10W42/60 Primary

  protecting against electrostatic charges or discharges, e.g. Faraday shields (integrated devices comprising arrangements for electrical protection H10D89/60) · CPC title

• H01L23/60 Primary

  Electricity · mapped topic

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G02F1/133314

  Back frames · CPC title