Touch window

Patent metadata

Field	Value
Publication number	US-9841858-B2
Application number	US-201514793415-A
Country	US
Kind code	B2
Filing date	Jul 7, 2015
Priority date	Jul 7, 2014
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A touch window includes a substrate comprising a first area and a second area, a wire electrode on the second area, an intermediate layer provided on the substrate to cover an end of the wire electrode, a sensing electrode on the intermediate layer, and a connection electrode to connect the sensing electrode with the wire electrode. The connection electrode is provided on the intermediate layer to connect the sensing electrode with the wire electrode.

First claim

What is claimed is:

1. A touch window comprising:
a wire electrode on a substrate;
the substrate;
an intermediate layer provided on the substrate to cover an end of the wire electrode;
sensing electrodes including a first sensing electrode and a second sensing electrode provided to the intermediate layer; and
a connection electrode to connect the second sensing electrode with the wire electrode, wherein the first sensing electrode is provided on the substrate, wherein the second sensing electrode is provided on the intermediate layer and extends in a different direction than the first sensing electrode, wherein the connection electrode is provided on the intermediate layer to connect the second sensing electrode with the wire electrode, wherein the intermediate layer covers at least one part of the first sensing electrode,
wherein the intermediate layer is provided between the second sensing electrode and the wire electrode
wherein the intermediate layer is made up of a transparent oxide or In (Indium) compound, wherein the wire electrode includes:
a first area sandwiched between the substrate and the intermediate layer; and
a second area having a step difference from the intermediate layer, wherein the sensing electrode and the wire electrode are connected with each other on the first area,
wherein at least one through hole is formed in the first area, and wherein the connection electrode extends in a different direction than the second sensing electrode while making contact with the first area exposed through the through hole and the second sensing electrode.

2. The touch window of claim 1 , wherein the hole exposes the wire electrode.

3. The touch window of claim 1 , wherein the first area includes an overlap area and a non-overlap area based on an overlap state with the sensing electrode, and wherein the at least one through hole is formed in the non-overlap area.

4. The touch window of claim 3 , wherein the non-overlap area includes a first non-overlap area and a second non-overlap area spaced apart from each other, and the at least through hole comprises a first through hole formed in the first non-overlap area and a second through hole formed in the second non-overlap area.

5. The touch window of claim 4 , wherein the connection electrode contacts at least one of first areas exposed through the first and second through holes and the sensing electrode.

6. The touch window of claim 4 , wherein the connection electrode comprises:
a first connection electrode making contact with the first area exposed through the first through hole and the sensing electrode; and
a second connection electrode making contact with the first area exposed through the second through hole and the sensing electrode.

7. The touch window of claim 3 , wherein the non-overlap area comprises a first non-overlap area and a second non-overlap area spaced apart from each other, and the at least one through hole is formed on at least one of the first and second non-overlap areas.

8. The touch window of claim 7 , wherein the at least one through hole is formed on the at least one of the first and second non-overlap areas and includes a plurality of sub-through holes spaced apart from each other.

9. The touch window of claim 1 , wherein the wire electrode includes a third area sandwiched between the substrate and the intermediate layer, and the sensing electrode and the wire electrode are connected with each other on the third area.

10. The touch window of claim 9 , wherein at least one of the sensing electrode and the intermediate layer in the third area has a shape complementary to a shape of the wire electrode.

11. The touch window or claim 9 , wherein the sensing electrode crosses the connection electrode in the third area.

12. A touch window comprising:
a cover substrate including a first area and a second area;
an intermediate layer on the first area;
a wire electrode on the second area;
sensing electrodes including a first sensing electrode and a second sensing electrode provided to the intermediate layer; and
a connection electrode making contact with the sensing electrode and the wire electrode, wherein the first sensing electrode is provided on the substrate, wherein the second sensing electrode is provided on the intermediate layer and extends in a different direction than the first sensing electrode, wherein the connection electrode extends in at least two directions, wherein the intermediate layer covers at least one part of the first sensing electrode,
wherein the intermediate layer is provided between the second sensing electrode and the wire electrode,
wherein the intermediate layer is made up of a transparent oxide or In (Indium) compound,
wherein the wire electrode includes:
a first area sandwiched between the substrate and the intermediate layer; and
a second area having a step difference from the intermediate layer, wherein the second sensing electrode and the wire electrode are connected with each other on the first area of the wire electrode,
wherein at least one through hole is formed in the first area of the wire electrode, and
wherein the connection electrode extends in a different direction than the second sensing electrode while making contact with the first area of the wire electrode exposed through the through hole and the second sensing electrode.

13. The touch window of claim 12 , wherein the connection electrode includes:
a first pattern extending in a first direction; and
a second pattern extending in a direction different from the first direction.

14. The touch window of claim 13 , wherein the first pattern contacts the sensing electrode and the wire electrode, and the second pattern makes contact with at least one of the sensing electrode and the wire electrode.

15. The touch window of claim 13 , wherein the second pattern extends in a direction corresponding to a direction that the sensing electrode or the wire electrode extends.

16. The touch window of claim 15 , wherein the second pattern extends in a direction perpendicular to the first pattern.

17. The touch window of claim 13 , wherein the connection electrode includes at least one second pattern.

Assignees

• Lg Innotek Co Ltd

Inventors

• Park Soung Kyu
• Lee Chung Wan
• Kwon Do Youb
• Ryu Ji Chang
• Nam Taek Hoon
• Lee Jin Seok
• Her Jae Hak

Classifications

• G06F2203/04102

  Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F3/0445 Primary

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/04164

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title