Touch Panel and Mobile Terminal

• US 20170045979A1
• Filed: 05/08/2015
• Published: 02/16/2017
• Est. Priority Date: 04/09/2015
• Status: Abandoned Application

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: LI, Man, HUANG, Yao-li, GUO, Xingling
• Application Number:
  US14/646,013
• Publication Number:
  US 20170045979A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/136204 Arrangements to prevent high voltage or static electricity failures
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 2203/04111 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 Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• 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: H01L 27/0248 for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection

Abstract

The present invention proposes a touch panel and a mobile terminal. The touch panel includes a first conducting wire extending along a first direction and a second conducting wire extending along a second direction and crossing the first conducting wire. The first conducting wire includes first sensing electrodes arranged along the first direction and first connecting bridges linking two adjacent first sensing electrodes. The second conducting wire includes second sensing electrodes arranged along the second direction and second connecting bridges linking two adjacent second sensing electrodes. Each first sensing electrode comprises one or more pinnacles extending toward a third direction, and each pinnacle overlaps and is spaced apart from the second sensing electrode. Therefore, the accumulated electric charges discarge electricity through the pinnacle, and the second sensing electrode produces a current. real-time discharge of electrostatic is conducted.

Claims

1. A touch panel comprising:

a first conducting wire extending along a first direction, comprising a plurality of first sensing electrodes arranged along the first direction and a plurality of first connecting bridges linking two adjacent first sensing electrodes; and

a second conducting wire extending along a second direction and crossing the first conducting wire, comprising a plurality of second sensing electrodes arranged along the second direction and a plurality of second connecting bridges linking two adjacent second sensing electrodes;

wherein each first sensing electrode comprises one or more pinnacles extending toward a third direction, and each pinnacle overlaps and is spaced apart from the second sensing electrode;

in a top view, the plurality of first sensing electrode and the plurality of second sensing electrode are arranged in a zigzag order, the first connecting bridge overlaps the second connecting bridge;

the first direction is perpendicular to the second direction.

2. The touch panel of claim 1, wherein each first sensing electrode and each second sensing electrode are shaped as diamonds, and edges of the first sensing electrode are parallel to corresponding edges of the second sensing electrode.

3. A touch panel comprising:

a first conducting wire extending along a first direction, comprising a plurality of first sensing electrodes arranged along the first direction and a plurality of first connecting bridges linking two adjacent first sensing electrodes; and

a second conducting wire extending along a second direction and crossing the first conducting wire, comprising a plurality of second sensing electrodes arranged along the second direction and a plurality of second connecting bridges linking two adjacent second sensing electrodes;

wherein each first sensing electrode comprises one or more pinnacles extending toward a third direction, and each pinnacle overlaps and is spaced apart from the second sensing electrode.

4. The touch panel of claim 3, wherein in a top view, the plurality of first sensing electrode and the plurality of second sensing electrode are arranged in a zigzag order, the first connecting bridge overlaps the second connecting bridge.

5. The touch panel of claim 4, wherein each first sensing electrode and each second sensing electrode are shaped as diamonds, and edges of the first sensing electrode are parallel to corresponding edges of the second sensing electrode.

6. The touch panel of claim 5, wherein a length of the pinnacle is longer than an interval between the first sensing electrode and the second sensing electrode.

7. The touch panel of claim 5 further comprising an insulting layer sandwiched between the plurality of first connecting bridges and the plurality of second connecting bridges.

8. The touch panel of claim 5 wherein each first sensing electrode comprises four pinnacles disposed on four edges of the first sensing electrode, respectively.

9. The touch panel of claim 8, wherein the first connecting bridge links two vertices of the two adjacent first sensing electrodes, and a distance from the pinnacle to the first connecting bridge linking the first sensing electrode which comprises the pinnacle is less than a distance between the pinnacle and other corners of the first sensing electrode.

10. The touch panel of claim 9, wherein the edges of the first sensing electrode and the second sensing electrode are set to 3 mm˜

7 mm, and a distance between the pinnacle and the first connecting bridge is 1 mm˜

3 mm.

11. The touch panel of claim 3, wherein the first direction is perpendicular to the second direction.

12. A mobile terminal comprising a touch panel, the touch panel comprising:

a first conducting wire extending along a first direction, comprising a plurality of first sensing electrodes arranged along the first direction and a plurality of first connecting bridges linking two adjacent first sensing electrodes; and

a second conducting wire extending along a second direction and crossing the first conducting wire, comprising a plurality of second sensing electrodes arranged along the second direction and a plurality of second connecting bridges linking two adjacent second sensing electrodes;

wherein each first sensing electrode comprises one or more pinnacles extending toward a third direction, and each pinnacle overlaps and is spaced apart from the second sensing electrode.

13. The mobile terminal of claim 12, wherein in a top view, the plurality of first sensing electrode and the plurality of second sensing electrode are arranged in a zigzag order, the first connecting bridge overlaps the second connecting bridge.

14. The mobile terminal of claim 13, wherein each first sensing electrode and each second sensing electrode are shaped as diamonds, and edges of the first sensing electrode are parallel to corresponding edges of the second sensing electrode.

15. The mobile terminal of claim 14, wherein a length of the pinnacle is longer than an interval between the first sensing electrode and the second sensing electrode.

16. The mobile terminal of claim 14 wherein the touch panel further comprises an insulting layer sandwiched between the plurality of first connecting bridges and the plurality of second connecting bridges.

17. The mobile terminal of claim 14 wherein each first sensing electrode comprises four pinnacles disposed on four edges of the first sensing electrode, respectively.

18. The mobile terminal of claim 17, wherein the first connecting bridge links two vertices of the two adjacent first sensing electrodes, and a distance from the pinnacle to the first connecting bridge linking the first sensing electrode which comprises the pinnacle is less than a distance between the pinnacle and other corners of the first sensing electrode.

19. The mobile terminal of claim 18, wherein the edges of the first sensing electrode and the second sensing electrode are set to 3 mm˜

7 mm, and a distance between the pinnacle and the first connecting bridge is 1 mm˜

3 mm.

20. The mobile terminal of claim 12, wherein the first direction is perpendicular to the second direction.