OLED array substrate, manufacturing method thereof and touch display device

Patent metadata

Field	Value
Publication number	US-10466820-B2
Application number	US-201515524244-A
Country	US
Kind code	B2
Filing date	Dec 11, 2015
Priority date	Aug 27, 2015
Publication date	Nov 5, 2019
Grant date	Nov 5, 2019

Abstract

The embodiments of the present invention provide an OLED array substrate, a method for manufacturing the OLED array substrate, and a touch display device. The OLED array substrate includes a first metal layer pattern, a transparent conductive layer pattern, an insulating layer pattern disposed between the first metal layer pattern and the transparent conductive layer pattern. The first metal layer pattern includes a metal bridge line. The transparent conductive layer pattern includes an anode of an OLED, a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction. Each of the first electrodes includes a plurality of first sub-electrodes, and each of the first sub-electrodes is electrically connected to a corresponding metal bridge line.

First claim

What is claimed is:

1. An OLED array substrate, comprising: a first metal layer pattern, a transparent conductive layer pattern, an insulating layer pattern disposed between the first metal layer pattern and the transparent conductive layer pattern; the first metal layer pattern comprising a metal bridge line; the transparent conductive layer pattern comprising an anode of an OLED, a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction; each of the first electrodes comprising a plurality of first sub-electrodes; each of the first sub-electrodes being electrically connected to a corresponding metal bridge line;
wherein each first electrode constitutes a touch sensing line, and each second electrode constitutes a touch driving line.

2. The OLED array substrate according to claim 1 , wherein each of the second electrodes comprises a plurality of second sub-electrodes, a connecting line connecting two adjacent second sub-electrodes is arranged between two first sub-electrodes adjacent to each other in the first direction.

3. The OLED array substrate according to claim 2 , further comprising at least one thin film transistor; wherein the second sub-electrode is disposed between anodes of two OLEDs adjacent to each other in a first direction, the second sub-electrode is located over the thin film transistor; the first sub-electrode is disposed between anodes of two OLEDs adjacent to each other in the second direction.

4. The OLED array substrate according to claim 1 , further comprising a second metal layer pattern insulated and spaced from the first metal layer pattern; wherein the second metal layer pattern comprises a gate line, the first metal layer pattern comprises a data line and the metal bridge line; the gate line and the data line intersect each other, the metal bridge line is parallel to the data line.

5. The OLED array substrate according to claim 4 , further comprising a power supply line arranged in the same layer as the data line and parallel to the data line.

6. The OLED array substrate according to claim 5 , further comprising at least one thin film transistor; wherein the second metal layer pattern comprises a gate of the thin film transistor, the first metal layer pattern comprises a source and a drain of the thin film transistor.

7. The OLED array substrate according to claim 6 , further comprising two thin film transistors; wherein a gate of a first thin film transistor is electrically connected to the gate line, a source of the first thin film transistor is electrically connected to a gate of a second thin film transistor, a drain of the first thin film transistor is electrically connected to the data line; and wherein a source of the second thin film transistor is electrically connected to the anode of the OLED, a drain of the second thin film transistor is electrically connected to the power supply line.

8. A driving method for driving the OLED array substrate according to claim 4 , comprising:
driving the OLED array substrate for display and driving the array substrate for touch control;
wherein driving the OLED array substrate for display comprises: applying a gate scanning signal to the gate line and applying a data signal to the data line;
and wherein driving the array substrate for touch control comprises: applying a touch scanning signal to the first electrodes and the second electrodes.

9. The method according to claim 8 , wherein driving the OLED array substrate for display and driving the array substrate for touch control are performed simultaneously.

10. The method according to claim 8 , wherein driving the OLED array substrate for display and driving the array substrate for touch control are performed alternately.

11. A touch display device, comprising the OLED array substrate according to claim 1 .

12. The touch display device according to claim 11 , wherein each of the second electrodes comprises a plurality of second sub-electrodes, a connecting line connecting two adjacent second sub-electrodes is arranged between two first sub-electrodes adjacent to each other in the first direction.

13. The touch display device according to claim 12 , wherein the OLED array substrate further comprises at least one thin film transistor; wherein the second sub-electrode is disposed between anodes of two OLEDs adjacent to each other in a first direction, the second sub-electrode is located over the thin film transistor; the first sub-electrode is disposed between anodes of two OLEDs adjacent to each other in the second direction.

14. The touch display device according to claim 11 , wherein the OLED array substrate further comprises a second metal layer pattern insulated and spaced from the first metal layer pattern; wherein the second metal layer pattern comprises a gate line, the first metal layer pattern comprises a data line and the metal bridge line; the gate line and the data line intersect each other, the metal bridge line is parallel to the data line.

15. The touch display device according to claim 14 , wherein the OLED array substrate further comprises a power supply line arranged in the same layer as the data line and parallel to the data line.

16. A method for manufacturing an OLED array substrate, comprising:
forming a first metal layer pattern comprising a metal bridge line on a basal substrate;
forming an insulating layer pattern on the first metal layer pattern; and
forming a transparent conductive layer pattern comprising an anode of an OLED, a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction on the insulating layer pattern;
wherein each of the first electrodes comprises a plurality of first sub-electrodes, each of the first sub-electrodes is electrically connected to a corresponding metal bridge line; each first electrode constitutes a touch sensing line, and each second electrode constitutes a touch driving line.

17. The method according to claim 16 , wherein the step of forming a transparent conductive layer pattern comprising an anode of an OLED, a plurality of first electrodes extending in a first direction and a plurality of second electrodes extending in a second direction on the insulating layer pattern comprises:
forming a plurality of second sub-electrodes extending in a second direction and forming a connecting line connecting two adjacent second sub-electrodes between two first sub-electrodes adjacent to each other in the first direction.

18. The method according to claim 16 , further comprising:
forming a second metal layer pattern insulated and spaced from the first metal layer pattern;
wherein the second metal layer pattern comprises a gate line, the first metal layer pattern comprises a data line and the metal bridge line; the gate line and the data line intersect each other, the metal bridge line is parallel to the data line.

19. The method according to claim 16 , further comprising:
during forming the data line, forming a power supply line in the same layer as the data line and parallel to the data line.

20. The method according to claim 16 , wherein the second metal layer pattern comprises a gate of a thin film transistor, the first metal layer pattern comprises a source and a drain of the thin film transistor.

Assignees

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

Inventors

• Wang Wenlong
• Huang Yinhu
• Lin Zhiyuan
• Han Ling
• Ma Jun
• Lin Liang

Classifications

• H10D84/01 Primary

  Manufacture or treatment · CPC title

• G09G3/3225

  using an active matrix · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• H01L2227/323

  Electricity · mapped topic