IP Library › Granted Patent US 10,224,382

Granted Patent B2

US 10,224,382 · App. 15/568,806 · Granted Mar 5, 2019

Method for manufacturing an OLED display screen integrated with touch function

Inventor: Xuwen Cao (Hubei, CN)

Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.

H01L27/323 H01L27/3276 H01L51/5253 H01L2227/323

View Patent ↗

Loading inventors, assignments & file history…

Monitor This Case

Get email alerts when status or documents change.

Order Certified Copies

Most orders are placed with the USPTO same day — all within 24 business hours.

Order via The Patent Place →

Pre-filled with this patent's details

Quick Facts

Patent No.: US 10,224,382
App. No.: 15/568,806
Granted: Mar 5, 2019
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

A method for manufacturing an OLED display screen integrated with a touch function is provided, which includes steps of providing a glass substrate, forming an insulating layer and a wiring circuit layer, forming an OLED light-emitting layer, forming a first insulating ceramic layer, forming a first insulating organic layer, forming a first touch electrode layer, forming a touch insulating ceramic layer, forming a wire through hole in the wiring region of the glass substrate, forming a second touch electrode layer; and forming a wire in the wiring region of the glass substrate, wherein the wire is to the wiring circuit layer through the wiring through hole.

Claims (73)

1. A method for manufacturing an OLED display screen integrated with a touch function, comprising steps of:

providing a glass substrate including a pixel region and a wiring region;

forming an insulating layer on the glass substrate;

forming a driving circuit layer on the insulating layer in the pixel region, and forming a wiring circuit layer on the insulating layer in the wiring region;

forming an OLED light-emitting layer on the driving circuit layer in the pixel region;

forming a first insulating ceramic layer on the OLED light-emitting layer in the pixel region, and forming the first insulating ceramic layer on the wiring circuit layer in the wiring region;

forming a first insulating organic layer on the first insulating ceramic layer in the pixel region;

forming a first touch electrode layer on the first insulating organic layer in the pixel region;

forming a touch insulating ceramic layer on the first touch electrode layer in the pixel region, and forming the touch insulating ceramic layer on the first insulating ceramic layer in the wiring region, and forming a wiring through hole in the wiring region of the glass substrate;

forming a second touch electrode layer on the touch insulating ceramic layer in the pixel region, and forming a wire in the wiring region of the glass substrate, wherein the wire is connected to the wiring circuit layer through the wiring through hole; and

forming a touch electrode protective layer on the second touch electrode layer;

wherein the first touch electrode layer is a touch sensing layer, the second touch electrode layer is a touch driving layer, and the touch sensing layer and the touch driving layer are insulated against each other by the touch insulating ceramic layer.

2. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 1 , wherein the step of forming the first insulating ceramic layer on the OLED light-emitting layer in the pixel region, and forming the first insulating ceramic layer on the wiring circuit layer in the wiring region comprises steps of:

depositing a first insulating ceramic layer material on the OLED light-emitting layer in the pixel region, and depositing the first insulating ceramic layer material on the wiring circuit layer in the wiring region; and

etching the first insulating ceramic layer material in the pixel region to form the first insulating ceramic layer; and

wherein the step of forming the first insulating organic layer on the first insulating ceramic layer in the pixel region comprises steps of:

depositing a first insulating organic layer material on the first insulating ceramic layer in the pixel region; and

etching the first insulating organic layer material in the pixel region to form the first insulating organic layer.

3. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 2 , wherein the steps of forming the touch insulating ceramic layer on the first touch electrode layer in the pixel region, and forming the touch insulating ceramic layer on the first insulating ceramic layer in the wiring region, and forming the wiring through hole in the wiring region of the glass substrate comprise steps of

depositing a touch insulating ceramic layer material on the first touch electrode layer in the pixel region, and depositing the touch insulating ceramic layer material on the first insulating ceramic layer in the wiring region; and

etching the touch insulating ceramic layer material on the first touch electrode layer in the pixel region to form the touch insulating ceramic layer; and etching the first insulating ceramic layer material and the touch insulating ceramic layer material in the wiring region to form the wiring through hole.

4. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 3 , wherein a dry etching is performed on the first insulating ceramic layer material and the touch insulating ceramic layer material, to form the wiring through hole.

5. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 1 , after the step of forming the first insulating organic layer on the first insulating ceramic layer in the pixel region, and before the step of forming the first touch electrode layer on the first insulating organic layer in the pixel region, further comprising steps of:

forming a second insulating ceramic layer on the first insulating organic layer in the pixel region, and forming the second insulating ceramic layer on the first insulating ceramic layer in the wiring region; and

forming a second insulating organic layer on the second insulating ceramic layer in the pixel region.

6. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 5 , wherein

the step of forming the second insulating ceramic layer on the first insulating organic layer in the pixel region, and forming the second insulating ceramic layer on the first insulating ceramic layer in the wiring region, comprises steps of:

depositing a second insulating ceramic layer material on the first insulating organic layer in the pixel region, and depositing the second insulating ceramic layer material on the first insulating ceramic layer in the wiring region; and

etching the second insulating ceramic layer material on the first insulating organic layer in the pixel region, and etching the second insulating ceramic layer material on the first insulating ceramic layer in the wiring region to form the second insulating ceramic layer; and

wherein the step of forming the second insulating organic layer on the second insulating ceramic layer in the pixel region comprises steps of:

depositing a second insulating organic layer material on the second insulating ceramic layer in the pixel region; and

etching the second insulating organic layer material on the second insulating ceramic layer in the pixel region, to form the second insulating organic layer.

7. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 6 , wherein the steps of forming the touch insulating ceramic layer on the first touch electrode layer in the pixel region, and forming the touch insulating ceramic layer on the first insulating ceramic layer in the wiring region, and forming the wiring through hole in the wiring region of the glass substrate comprise steps of

etching the touch insulating ceramic layer material in the pixel region to form the touch insulating ceramic layer; and etching the first insulating ceramic layer material, the second insulating ceramic layer material and the touch insulating ceramic layer material in the wiring region, to form the wiring through hole.

8. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 7 , wherein a dry etching is performed on the first insulating ceramic layer material, the second insulating ceramic layer material, and the touch insulating ceramic layer material, to form the wiring through hole.

9. A method for manufacturing an OLED display screen integrated with a touch function, comprising steps of:

providing a glass substrate including a pixel region and a wiring region;

forming an insulating layer on the glass substrate;

forming a driving circuit layer on the insulating layer in the pixel region, and forming a wiring circuit layer on the insulating layer in the wiring region;

forming an OLED light-emitting layer on the driving circuit layer in the pixel region;

forming a first insulating ceramic layer on the OLED light-emitting layer in the pixel region, and forming the first insulating ceramic layer in the wiring region;

forming a first insulating organic layer on the first insulating ceramic layer in the pixel region;

forming a first touch electrode layer on the first insulating organic layer in the pixel region;

forming a touch insulating ceramic layer on the first touch elects fide layer in the pixel region, and forming the touch insulating ceramic layer on the first insulating ceramic layer in the wiring region, and forming a wiring through hole in the wiring region of the glass substrate;

10. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 9 , wherein the step of forming the first insulating ceramic layer on the OLED light-emitting layer in the pixel region, and forming the first insulating ceramic layer on the wiring circuit layer in the wiring region comprises steps of:

etching the first insulating ceramic layer material in the pixel region form the first insulating ceramic layer; and

wherein the step of forming the first insulating organic layer on the first insulating ceramic layer in the pixel region comprises steps of:

depositing a first insulating organic layer material on the first insulating ceramic layer in the pixel region; and

etching the first insulating organic layer material in the pixel region to form the first insulating organic layer.

11. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 10 , wherein the steps of forming the touch insulating ceramic layer on the first touch electrode layer in the pixel region, and forming the touch insulating ceramic layer on the first insulating ceramic layer in the wiring region, and forming the wiring through hole in the wiring region of the glass substrate comprise steps of:

12. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 11 , wherein a dry etching is performed on the first insulating ceramic layer material and the touch insulating ceramic layer material, to form the wiring through hole.

13. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 9 , after the step of forming the first insulating organic layer on the first insulating ceramic layer in the pixel region, and before the step of forming the first touch electrode layer on the first insulating organic layer in the pixel region, further comprising steps of:

forming a second insulating ceramic layer on the first insulating organic layer in the pixel region, and forming, the second insulating ceramic layer on the first insulating ceramic layer in the wiring region; and

forming a second insulating organic layer on the second insulating ceramic layer in the pixel region.

14. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 13 , wherein

etching the second insulating ceramic layer material on the first insulating organic layer in the pixel region and etching the second insulating ceramic layer material on the first insulating ceramic layer in the wiring region to form the second insulating ceramic layer; and

wherein the step of forming a second insulating organic layer on the second insulating ceramic layer in the pixel region comprises steps of:

depositing a second insulating organic layer material on the second insulating ceramic layer in the pixel region; and

etching the second insulating organic layer material on the second insulating ceramic layer in the pixel region, to form the second insulating organic layer.

15. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 14 , wherein the steps of forming the touch insulating ceramic layer on the first touch electrode layer in the pixel region, and forming the touch insulating ceramic layer on the first insulating ceramic layer in the wiring region, and forming the wiring through hole in the wiring region of the glass substrate comprise steps of:

16. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 15 , wherein a dry etching is performed on the first insulating ceramic layer material, the second insulating ceramic layer material, and the touch insulating ceramic layer material, to form the wiring through hole.

17. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 9 , further comprising a step of:

forming a touch electrode protective layer on the second touch electrode layer.

18. The method for manufacturing the OLED display screen integrated with the touch function as claimed in claim 9 , wherein the first touch electrode layer is a touch sensing layer, the second touch electrode layer is a touch driving layer, and the touch sensing layer and the touch driving layer are insulated against each other by the touch insulating ceramic layer.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2017

From: CAO, XUWEN

To: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.

Reel/Frame 043929/0142 →

Continuity (1)

Related Publication 20190035857A1 · Jan 31, 2019