ARRAY SUBSTRATE, TOUCH DISPLAY PANEL AND TOUCH DISPLAY DEVICE

• US 20170220164A1
• Filed: 04/13/2017
• Published: 08/03/2017
• Est. Priority Date: 12/09/2014
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Wang, Ming Hsi, Shi, Ling
• Application Number:
  US15/486,860
• Publication Number:
  US 20170220164A1
• Time in Patent Office: Days
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: H10K 50/81 Anodes
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/40 OLEDs integrated with touch screens

Abstract

An array substrate, a touch display panel and a touch display device are provided to realize the In-cell touch technology in the AMOLED displays. The array substrate includes a base substrate (1) having a plurality of pixel units formed by intersecting data lines (7) and gate lines (2) provided on the base substrate (1), each pixel unit comprises a bottom emission type OLED device and at least one TFT, and the OLED device includes a transparent anode (13). The array substrate further includes a plurality of first electrodes (10) disposed parallel with and in a same layer as the data lines (7) and a plurality of second electrodes (14) disposed parallel with the gate lines (2) and in a same layer as the anode (13). At least one first electrode (10) constitutes a touch driving line (20), and at least one second electrode (14) constitutes a touch sensing line (21).

Claims

1. An array substrate, comprising:

a base substrate, wherein the base substrate has a plurality of pixel units formed by intersecting data lines and gate lines, the data lines and the gate lines are provided on the base substrate, each pixel unit comprises an organic light emitting diode (OLED) device and at least one thin film transistor (TFT), and the OLED device includes a transparent anode;

a plurality of first electrodes disposed parallel with and in a same layer as the data lines, and

a plurality of second electrodes disposed parallel with the gate lines and in a same layer as the anode, wherein

at least one first electrode constitutes a touch driving line, and at least one second electrode constitutes a touch sensing line,

the thin film transistor comprises a gate electrode, an active layer, a source electrode and a drain electrode,

an etching stop layer covers the active layer of the thin film transistor, and the first electrodes and the data lines are provided on the etching stop layer so that the first electrodes are in the same layer as the data lines.

2. The array substrate according to claim 1, wherein

the first electrodes are arranged uniformly in a row direction, the second electrodes are arranged uniformly in a column direction, and the first electrodes and the second electrodes are both disposed in a non-emission area of the array substrate.

3. The array substrate according to claim 2, wherein

at least one column of pixel units are provided between two adjacent first electrodes, and at least one row of pixel units are provided between two adjacent second electrodes.

4. The array substrate according to claim 1, wherein

two or more first electrodes constitute one touch driving line, and the two or more first electrodes constituting one touch driving line are connected with each other at their two ends;

and

two or more second electrodes constitute one touch sensing line, and the two or more second electrodes constituting one touch sensing line are connected with each other at their two ends.

5. The array substrate according to claim 1, wherein

one column of pixel units are provided between two adjacent touch driving lines, and one row of pixel units are provided between two adjacent touch sensing lines.

6. The array substrate of according to claim 1, wherein

at least two columns of pixel units are provided between two adjacent touch driving lines, and at least one first electrode insulated from the touch driving line is disposed between two adjacent touch driving lines;

and,

at least two rows of pixel units are provided between two adjacent touch sensing lines, and at least one second electrode insulated from the touch sensing line is disposed two adjacent touch sensing lines.

7. The array substrate according to claim 4, wherein 20-30 adjacent first electrodes constitute one touch driving line.

8. The array substrate according to claim 4, wherein 5-15 adjacent second electrodes constitute one touch sensing line.

9. A touch display panel, comprising the array substrate according to claim 1.

10. A touch display device, comprising the touch display panel according to claim 9.

11. The array substrate according to claim 2, wherein

two or more first electrodes constitute one touch driving line, and the two or more first electrodes constituting one touch driving line are connected with each other at their two ends;

and

two or more second electrodes constitute one touch sensing line, and the two or more second electrodes constituting one touch sensing line are connected with each other at their two ends.

12. The array substrate according to claim 3, wherein

two or more first electrodes constitute one touch driving line, and the two or more first electrodes constituting one touch driving line are connected with each other at their two ends;

and

two or more second electrodes constitute one touch sensing line, and the two or more second electrodes constituting one touch sensing line are connected with each other at their two ends.

13. The array substrate according to claim 2, wherein

one column of pixel units are provided between two adjacent touch driving lines, and one row of pixel units are provided between two adjacent touch sensing lines.

14. The array substrate according to claim 3, wherein

one column of pixel units are provided between two adjacent touch driving lines, and one row of pixel units are provided between two adjacent touch sensing lines.

15. The array substrate according to claim 4, wherein

one column of pixel units are provided between two adjacent touch driving lines, and one row of pixel units are provided between two adjacent touch sensing lines.

16. The array substrate of according to claim 2, wherein

at least two columns of pixel units are provided between two adjacent touch driving lines, and at least one first electrode insulated from the touch driving line is disposed between two adjacent touch driving lines;

and,

at least two rows of pixel units are provided between two adjacent touch sensing lines, and at least one second electrode insulated from the touch sensing line is disposed two adjacent touch sensing lines.

17. The array substrate of according to claim 3, wherein

at least two columns of pixel units are provided between two adjacent touch driving lines, and at least one first electrode insulated from the touch driving line is disposed between two adjacent touch driving lines;

and,

at least two rows of pixel units are provided between two adjacent touch sensing lines, and at least one second electrode insulated from the touch sensing line is disposed two adjacent touch sensing lines.

18. The array substrate of according to claim 4, wherein

at least two columns of pixel units are provided between two adjacent touch driving lines, and at least one first electrode insulated from the touch driving line is disposed between two adjacent touch driving lines;

and,

at least two rows of pixel units are provided between two adjacent touch sensing lines, and at least one second electrode insulated from the touch sensing line is disposed two adjacent touch sensing lines.