Repairable touch control device and method of repairing touch control panel

• US 8,199,120 B2
• Filed: 12/22/2008
• Issued: 06/12/2012
• Est. Priority Date: 07/11/2008
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Wu, Yuan-Chun, Lee, Hsin-Hung, Ma, Mei-Sheng, Cheng, Kuo-Hsing, Hsieh, Yao-Jen
• Primary Examiner(s): Agustin, Peter Vincent
• Application Number:
  US12/340,769
• Publication Number:
  US 20100007615A1
• Time in Patent Office: 1,268 Days
• Field of Search: None
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires

Abstract

A repairable touch control device includes a substrate, a sensor circuit, and at least a repairing wiring. The substrate includes a sensor region, and a peripheral region. The sensor circuit, which includes sensor wirings, is disposed in the sensor region. The repairing wiring is disposed in the peripheral region for repairing the sensor wirings.

Claims

1. A repairable touch control device, comprising:

a substrate comprising a sensor region and a peripheral region;

a control circuit, at least partially disposed on the peripheral region of the substrate;

a sensor circuit disposed on the sensor region of the substrate, the sensor circuit comprising a plurality of sensor wirings electrically connected to the control circuit; and

a first repairing wiring disposed on the peripheral region of the substrate and electrically connected to the control circuit, wherein the first repairing wiring for repairing the sensor wirings is disposed adjacent to and substantially not overlapped with the sensor wirings.

2. The repairable touch control device of claim 1, wherein the sensor wirings and the first repairing wiring are located in the same layer.

3. The repairable touch control device of claim 1, further comprising a second repairing wiring, wherein the sensor wirings are disposed on the second repairing wiring or the second repairing wiring is disposed on the sensor wirings.

4. The repairable touch control device of claim 1, wherein the sensor wirings comprise a plurality of horizontal sensor wirings and a plurality of vertical sensor wirings, wherein each of the horizontal sensor wirings comprises a plurality of horizontal sensor pads connected in series, and each of the vertical sensor wirings comprises a plurality of vertical sensor pads connected in series.

5. The repairable touch control device of claim 1, further comprising a plurality of conductive wires configured to electrically connect the sensor wirings to the control circuit.

6. A repairable touch control display panel, comprising:

a display panel comprising a sensor region and a peripheral region on a surface of the display panel;

a control circuit, at least partially disposed on the peripheral region of the display panel;

a sensor circuit disposed on the sensor region of the display panel, the sensor circuit comprising a plurality of sensor wirings electrically connected to the control circuit; and

a first repairing wiring disposed on the peripheral region of the display panel and electrically connected to the control circuit, wherein the first repairing wiring for repairing the sensor wirings is disposed adjacent to and substantially not overlapped with the sensor wirings.

7. The repairable touch control display panel of claim 6, wherein the display panel comprises a liquid display panel.

8. The repairable touch control display panel of claim 7, wherein the liquid display panel comprises:

a thin film transistor (TFT) substrate;

a color filter (CF) substrate disposed opposite to the TFT substrate, wherein the sensor region and the peripheral region are disposed on a surface of the CF substrate opposite to the TFT substrate; and

a liquid crystal layer interposed between the TFT substrate and the CF substrate.

9. The repairable touch control display panel of claim 6, wherein the sensor wirings and the first repairing wiring are located in the same layer.

10. The repairable touch control display panel of claim 6, further comprising a second repairing wiring, wherein the sensor wirings are disposed on the second repairing wiring.

11. The repairable touch control display panel of claim 10, wherein the second repairing wiring is disposed on the sensor wirings.

12. The repairable touch control display panel of claim 6, wherein the sensor wirings comprise a plurality of horizontal sensor wirings and a plurality of vertical sensor wirings, wherein each of the horizontal sensor wirings comprises a plurality of horizontal sensor pads connected in series, and each of the vertical sensor wirings comprises a plurality of vertical sensor pads connected in series.

13. The repairable touch control display panel of claim 6, further comprising a plurality of conductive wires configured to electrically connect the sensor wirings to the control circuit.

14. A method of repairing a touch control panel, comprising:

providing a touch control panel, comprising;

a substrate, comprising a sensor region and a peripheral region;

a control circuit, at least partially disposed on the peripheral region of the substrate;

a sensor circuit disposed on the sensor region of the substrate, the sensor circuit comprising a plurality of sensor wirings electrically connected to the control circuit; and

a first repairing wiring disposed in the peripheral region of the substrate and electrically connected to the control circuit, wherein the first repairing wiring for repairing the sensor wirings is disposed adjacent to and substantially not overlapped with the sensor wirings ; and

performing a detection process on the sensor circuit to detect a sensor wiring required to be repaired; and

performing a repairing process on the sensor circuit to electrically connect the first repairing wiring to the sensor wiring required to be repaired.

15. The method of claim 14, wherein the repairing process comprises utilizing a conductive material to electrically connect the first repairing wiring to the sensor wiring required to be repaired.

16. The method of claim 14, further comprising a welding process to electrically connect a second repairing wiring to the sensor wiring required to be repaired, wherein the second repairing wiring is overlapped with the sensor wiring required to be repaired.

17. The method of claim 16, wherein the welding process comprises a laser welding process.

18. The method of claim 14, wherein the repairing process comprises utilizing a laser chemical vapor deposition process to electrically connect the first repairing wiring to the sensor wiring required to be repaired.

19. The method of claim 14, wherein the sensor wiring required to be repaired is electrically connected to the control circuit via the first repairing wiring by the repairing process.