Touch Display Device

• US 20180032196A1
• Filed: 07/30/2017
• Published: 02/01/2018
• Est. Priority Date: 07/31/2016
• Status: Active Grant

• Current Assignee: Hefei Sitronix Co., Ltd.
• Original Assignee: Sitronix Technology Corporation
• Inventors: Lin, Chih-Yu, Lin, Tsun-Sen
• Granted Patent: US 10,884,527 B2
• Time in Patent Office: 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 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/04184 Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52

Abstract

A touch display device includes a display area and a non-display area and further includes a touch electrode layer; wherein a plurality of sensing electrodes is configured in the electrode layer; wherein each sensing electrode extends from the display area to the non-display area and is coupled to a driver chip via a connection structure; wherein the connection structure locates in the non-display area.

Claims

1. A touch display device including a display area and a non-display area and further comprising:

a touch electrode layer;

wherein a plurality of sensing electrodes is configured in the electrode layer;

wherein each sensing electrode extends from the display area to the non-display area and is coupled to a driver chip via a connection structure;

wherein the connection structure locates in the non-display area.

2. The touch display device of claim 1, wherein there is no VIA or conductive route in the touch electrode layer in the display area of the touch display device.

3. The touch display device of claim 1, wherein the connection structure comprises a plurality of conductive particles configured in the non-display area.

4. The touch display device of claim 3, wherein the touch electrode layer is configured on a color filter glass substrate and the connection structure is coupled to the driver chip through a routing layer on a thin film transistor (TFT) glass substrate.

5. The touch display device of claim 1, wherein the connection structure comprises VIA configured in the non-display area.

6. The touch display device of claim 5, wherein the touch electrode layer is configured on a first side of a pixel array insulating layer of a thin film transistor (TFT) glass substrate, a routing layer coupled to the driver chip is configured on a second side of the pixel array insulating layer, and the VIA of the connection structure penetrates the pixel array insulating layer to connect the touch electrode layer and the routing layer.

7. The touch display device of claim 1, wherein a first sensing electrode and a second sensing electrode of the plurality of sensing electrodes are coupled to each other in the non-display area.

8. The touch display device of claim 1, wherein a first sensing electrode and a second sensing electrode of the plurality of sensing electrodes are coupled to each other in the driver chip.

9. A touch display device comprising a display area and a non-display area and further comprising:

a touch electrode layer, wherein a plurality of sensing electrodes is configured in the touch electrode layer;

a driver chip; and

at least one multiplexer, configured in the non-display area;

wherein the at least one multiplexer is coupled to the multiple sensing electrodes through a plurality of first connection components and coupled to the driver chip through a second connection component.

10. The touch display device of claim 9, wherein there is no VIA or conductive routing in the touch electrode layer in the display area of the touch display device.

11. The touch display device of claim 9, wherein each of the sensing electrodes extends from the display area to the non-display area and the plurality of first connection components is in the non-display area of the touch display device.

12. The touch display device of claim 11, wherein the touch electrode layer is configured on a color filter glass substrate, the at least one multiplexer and the second connection component are configured on a thin film transistor (TFT) glass substrate, and the plurality of first connection components is a plurality of conductive particles to make the at least one multiplexer coupled to the multiple sensing electrodes through the plurality of conductive particles in the non-display area and coupled to the driver chip through the second connection component. 13 . The touch display device of claim 11, wherein the touch electrode layer is configured on a first side of a pixel array insulating layer on a thin film transistor (TFT) glass substrate, the at least one multiplexer is configured on a second side of the pixel array insulating layer, the plurality of the first connection components comprise a plurality of VIAs penetrating the pixel array insulating layer, and the second connection component is configured in a routing layer on the second side of the pixel array insulating layer.