Touch panel

Patent metadata

Field	Value
Publication number	US-10061414-B2
Application number	US-201514719958-A
Country	US
Kind code	B2
Filing date	May 22, 2015
Priority date	Oct 22, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A touch panel of the embodiment includes a substrate including an active area and an unactive area; a sensing electrode on the active area; a wire electrode on the unactive area; and a connection electrode connected to at least one of the sensing electrode and the wire electrode, wherein at least one of the sensing electrode and the wire electrode includes a plurality of openings, and the openings are divided by the connection electrode. A touch panel of another embodiment includes a substrate including an active area and an unactive area; a sensing electrode on the active area; and a wire electrode on the unactive area, wherein the sensing electrode comprises a plurality of openings, and the openings extend in a direction corresponding to an extension direction of the sensing electrode.

First claim

What is claimed is:

1. A touch panel comprising:
a substrate including an active area and an unactive area;
a sensing electrode on the active area;
a wire electrode on the unactive area; and
a connection electrode connected to each of the sensing electrode and the wire electrode and comprising a plurality of first connection electrodes and a plurality of second connection electrodes;
wherein the sensing electrode includes a plurality of sensing electrode openings, and the sensing electrode openings are divided by the first connection electrodes;
wherein the wire electrode includes a plurality of wire electrode openings, and the wire electrode openings are divided by the second connection electrodes;
wherein the sensing electrode comprises a first sensing electrode and a second sensing electrode;
wherein at least one of the first and second sensing electrodes comprises a first sub-sensing electrode and a second sub-sensing electrode, which are spaced apart from each other;
wherein the wire electrode comprises a first sub-wire electrode and a second sub-wire electrode, which are spaced apart from each other;
wherein the wire electrode openings are provided between the first sub-wire electrode and the second sub-wire electrode;
wherein the first connection electrodes connect the first and second sub-sensing electrodes, and the second connection electrodes connect the first and second sub-wire electrodes; and
wherein the second connection electrodes extend in a direction different from an extension direction of the first and second sub-wire electrodes.

2. The touch panel of claim 1 , wherein the first and second sensing electrodes are disposed on a same plane of the substrate.

3. The touch panel of claim 1 , wherein the first connection electrodes are spaced apart from each other at an interval of 3.5 mm to 4.5 mm.

4. The touch panel of claim 1 , wherein each first connection electrode is connected to at least one of a lateral side and a top surface of the first sub-sensing electrode and at least one of a lateral side and a top surface of the second sub-sensing electrode.

5. The touch panel of claim 1 , wherein the first connection electrodes extend in a direction different from the extension direction of the first and second sub-sensing electrodes.

6. The touch panel of claim 1 , wherein the first and second sub-sensing electrodes and the first connection electrodes are integrally formed with each other.

7. The touch panel of claim 1 , wherein the first and second sub-sensing electrodes and the first connection electrodes comprise materials corresponding to each other.

8. The touch panel of claim 1 , wherein the first connection electrode has a width smaller than a width of at least one of the first sub-sensing electrode and the second sub-sensing electrode.

9. The touch panel of claim 8 , wherein the width of the first connection electrode is in a range of 0.03 mm to 0.1 mm, and the width of at least one of the first sub-sensing electrode and the second sub-sensing electrode is in a range of 0.2 mm to 0.5 mm.

10. The touch panel of claim 1 , wherein the first and second sub-sensing electrodes are connected to the wire electrode through a pad part, the wire electrode comprises at least one 1st′ wire electrode and at least one 2nd′ wire electrode, and the 1st′ wire electrode is connected to the pad part and the 2nd′ wire electrode.

11. The touch panel of claim 1 , wherein the second connection electrodes are spaced apart from each other at an interval of 0.1 mm to 0.3 mm.

12. The touch panel of claim 1 , wherein the first sub-wire electrode, the second sub-wire electrode, and the second connection electrodes comprise materials corresponding to each other.

13. The touch panel of claim 1 , wherein the first sub-wire electrode, the second sub-wire electrode, and the second connection electrodes are integrally formed with each other.

14. A touch panel comprising:
a substrate including an active area and an unactive area;
a sensing electrode on the active area;
a wire electrode on the unactive area; and
a connection electrode connected to each of the sensing electrode and the wire electrode and comprising a plurality of first connection electrodes and a plurality of second connection electrodes;
wherein the sensing electrode includes a plurality of sensing electrode openings, and the sensing electrode openings extend in a direction corresponding to an extension direction of the sensing electrode;
wherein the wire electrode includes a plurality of wire electrode openings, and the wire electrode openings are divided by the second connection electrodes;
wherein the sensing electrode comprises a first sensing electrode and a second sensing electrode;
wherein at least one of the first and second sensing electrodes comprises a first sub-sensing electrode and a second sub-sensing electrode, which are spaced apart from each other;
wherein the wire electrode comprises a first sub-wire electrode and a second sub-wire electrode, which are spaced apart from each other;
wherein the wire electrode openings are provided between the first and the second sub-wire electrode,
wherein first connection electrodes connect the first and second sub-sensing electrodes, and the second connection electrodes connect the first and second sub-wire electrodes;
wherein the second connection electrodes extend in a direction different from an extension direction of the first and second sub-wire electrodes.

15. The touch panel of claim 14 , wherein each sensing electrode opening has a width in a range of 30 μm to 100 μm.

16. The touch panel of claim 14 , wherein each sensing electrode opening has a length in a range of 30 μm to 800 μm.

17. The touch panel of claim 14 , wherein the sensing electrode openings comprise first sensing electrode openings and second sensing electrode openings that are aligned in a zigzag manner, and the first and second sensing electrode openings comprise an overlap area.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Seung Heon
• Jang Jae Joon

Classifications

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F3/041 Primary

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/0448 Primary

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title