Array substrate and display panel

• US 10,175,842 B2
• Filed: 04/20/2018
• Issued: 01/08/2019
• Est. Priority Date: 05/08/2015
• Status: Active Grant

• Current Assignee: Tianma Microelectronics Company Limited, Xiamen Tianma Micro-Electronics Co., Ltd.
• Original Assignee: Tianma Microelectronics Company Limited, Xiamen Tianma Micro-Electronics Co., Ltd.
• Inventors: Yan, Huasheng
• Primary Examiner(s): Abdulselam, Abbas I
• Application Number:
  US15/958,972
• Publication Number:
  US 20180239466A1
• Time in Patent Office: 263 Days
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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

Abstract

An array substrate and a display panel. The array substrate includes: a plurality of data lines and a plurality of scan lines; at least one sub-pixel unit defined by the data lines and the scan lines; and a plurality of touch electrodes, comprising drive electrodes and touch sensing electrodes intersecting the drive electrodes; wherein, in a touch phase, at least one of the touch electrodes is electrically connected with the corresponding data line, so that a driving signal is transmitted to or a sense signal is received from the at least one of the touch electrodes via the corresponding data line electrically connected with the at least one of the touch electrodes.

Claims

1. An array substrate, comprising:

a plurality of data lines;

a plurality of scan lines;

an integrated circuit;

a plurality of sub-pixel units; and

a plurality of touch electrodes,

wherein the plurality of data lines comprises a multiplexed data line,

wherein a first terminal of the multiplexed data line is electrically connected to the integrated circuit,

wherein a second terminal of the multiplexed data line is configured to be;

electrically connected to one of the plurality of touch electrodes in a touch phase, electrically connected to one of the plurality of sub-pixel units and electrically disconnected from the one of the plurality of touch electrodes in a display phase, and electrically disconnected from the one of the plurality of sub-pixel units in the touch phase.

2. The array substrate according to claim 1, further comprising a first switch,

wherein a first terminal of the first switch is connected to the second terminal of the multiplexed data line, and a second terminal of the first switch is connected to the one of the plurality of touch electrodes,

wherein each of the plurality of sub-pixel units comprises a second switch and a pixel electrode, a first terminal of the second switch is connected to the second terminal of the multiplexed data line, and a second terminal of the second switch is connected to the pixel electrode,

wherein in the touch phase the first switch is turned on and the second switch is turned off, and in the display phase the first switch is turned off and the second switch is turned on.

3. The array substrate according to claim 2, wherein the integrated circuit is configured to transmit a display signal to the pixel electrode in the display phase.

4. The array substrate according to claim 2, wherein the plurality of touch electrodes comprise a touch driving electrode and a touch sensing electrode, the one of the plurality of touch electrodes that is connected to the second terminal of the first switch is the touch driving electrode, and the integrated circuit is configured to transmit a driving signal to the touch driving electrode via the multiplexed data line in the touch phase, such that a sensing signal is generated on the touch sensing electrode in response to the driving signal.

5. The array substrate according to claim 4, wherein the touch driving electrode and the plurality of data lines extend in a first direction, and the touch sensing electrode and the plurality of scan lines extend in a second direction.

6. The array substrate according to claim 4, wherein the touch driving electrode and the plurality of scan lines extend in a first direction, and the touch sensing electrode and the plurality of data lines extend in a second direction.

7. The array substrate according to claim 4, wherein the touch driving electrode intersects the touch sensing electrode, and the touch driving electrode and the touch sensing electrode are arranged at different layers.

8. The array substrate according to claim 2, wherein the plurality of touch electrodes comprise a touch driving electrode and a touch sensing electrode, the one of the plurality of touch electrodes that is connected to the second terminal of the first switch is the touch sensing electrode, and the integrated circuit is configured to receive a sense signal from the touch sensing electrode via the multiplexed data line in the touch phase, which is generated in response to a driving signal on the touch driving electrode.

9. The array substrate according to claim 8, wherein the touch driving electrode and the plurality of data lines extend in a first direction, and the touch sensing electrode and the plurality of scan lines extend in a second direction.

10. The array substrate according to claim 8, the touch driving electrode and the plurality of scan lines extend in a first direction, and the touch sensing electrode and the plurality of data lines extend in a second direction.

11. The array substrate according to claim 8, wherein the touch driving electrode intersects the touch sensing electrode, and the touch driving electrode and the touch sensing electrode are arranged at different layers.

12. The array substrate according to claim 2, wherein the first switch is a first thin film transistor and the second switch is a second thin film transistor, a gate electrode of the first thin film transistor is electrically connected to a control signal line, and a gate electrode of the second thin film transistor is electrically connected to one of the plurality of scan lines.

13. The array substrate according to claim 2, wherein the array substrate has a display region and a non-display region, the first switch and the integrated circuit are in the non-display region, and the second switch is in the display region.

14. The array substrate according to claim 13, wherein the display region is circular.

15. The array substrate according to claim 13, wherein the display region has a polygonal shape, and an included angle between an extending direction of the data line and an edge of the display region is unequal to 0 degree, 90 degrees or 180 degrees.

16. An array substrate, comprising:

an integrated circuit;

a plurality of data lines, wherein a first terminal of each of the plurality of data lines is electrically connected to the integrated circuit;

a plurality of scan lines;

a plurality of sub-pixel units each comprising a first switch and a pixel electrode, wherein a first terminal of the first switch is electrically connected to a second terminal of one of the plurality of data lines, and a second terminal of the first switch is electrically connected to the pixel electrode; and

a plurality of touch electrodes;

wherein the plurality of data lines comprises a multiplexed data line, a second terminal of the multiplexed data line is electrically connected to one of the plurality of touch electrodes via a second switch.

17. The array substrate according to claim 16, wherein a first terminal of the second switch is electrically connected to the multiplexed data line, and a second terminal of the second switch is electrically connected to the one of the plurality of touch electrodes, and wherein in a touch phase the first switch is turned off and the second switch is turned on, and in a display phase, the first switch is turned on and the second switch is turned off.

18. The array substrate according to claim 17, wherein the integrated circuit is configured to transmit a display signal to the pixel electrode in the display phase.

19. The array substrate according to claim 18, wherein the integrated circuit is further configured to transmit a driving signal to the one of the plurality of touch electrodes via the multiplexed data line in the touch phase.

20. The array substrate according to claim 18, wherein the integrated circuit is further configured to receive a sensing signal to the one of the plurality of touch electrodes via the multiplexed data line in the touch phase.