Touch window

Patent metadata

Field	Value
Publication number	US-9891769-B2
Application number	US-201514814730-A
Country	US
Kind code	B2
Filing date	Jul 31, 2015
Priority date	Nov 25, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A touch window includes a substrate; and an electrode on the substrate, wherein the electrode includes a first mesh line extending in a first direction and having a first width; a second mesh line extending in a direction different from the first direction and having a second width; and an cross area in which the first and second mesh lines cross each other, the cross area having a third width, wherein the third width is larger than the first width, and the third width is equal to or less than 10 times of the first width.

First claim

What is claimed is:

1. A touch window comprising:
a substrate;
a cover substrate on the substrate;
a first sensing electrode on the substrate, and extending in one direction;
a second sensing electrode on the substrate, and extending in other direction different from the one direction, and including second unit sensing electrodes spaced apart from the first sensing electrode;
a bridge electrode connecting the second unit sensing electrodes to each other; and
an insulating layer between the first sensing electrode and the bridge electrode,
wherein the first and second sensing electrodes are disposed on a same surface of the substrate,
wherein the first sensing electrode and the second sensing electrode comprise:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width; and
opening parts formed by the first and second mesh lines,
wherein the third width is a diagonal distance,
wherein the third width is larger than the first width and the second width, and
wherein the third width is less than or equal to 5 times the first width and the second width.

2. The touch window of claim 1 , wherein the first width corresponds to the second width.

3. The touch window of claim 1 , wherein at least one of the first and second mesh lines has one end having a width gradually narrowed toward the cross area.

4. The touch window of claim 1 , further comprising a wire electrode,
wherein the substrate includes an active area and an unactive area,
wherein the wire electrode is disposed on the unactive area, and
wherein the first sensing electrode and the second sensing electrode are disposed on the active area.

5. The touch window of claim 1 , wherein the third width is 2 to 5 times the first width and the second width.

6. The touch window of claim 1 , wherein the bridge electrode comprises mesh lines and opening parts formed by the mesh lines.

7. A touch window comprising:
a substrate;
a cover substrate on the substrate;
a first sensing electrode on the substrate, and extending in one direction;
a second sensing electrode on the substrate, and extending in other direction different from the one direction, and including second unit sensing electrodes spaced apart from the first sensing electrode;
a bridge electrode connecting the second unit sensing electrodes to each other; and
an insulating layer between the first sensing electrode and the bridge electrode,
wherein the first and second sensing electrodes are disposed on a same surface of the substrate,
wherein the first sensing electrode and the second sensing electrode comprise:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width; and
opening parts formed by the first and second mesh lines,
wherein the first and second mesh lines cross each other at an angle in a range of 60° to 120°,
wherein the third width is a diagonal distance,
wherein the third width is larger than the first width and the second width, and
wherein the third width is less than or equal to 5 times the first width and the second width.

8. The touch window of claim 7 , wherein at least one of the first and second mesh lines has a curved line.

9. The touch window of claim 8 , wherein the first or second mesh line includes a linear line.

10. The touch window of claim 7 , wherein: the first mesh line includes a first sub-mesh line and a second sub-mesh line spaced apart from each other by a first interval distance, and
the first interval distance varies in the first direction.

11. The touch window of claim 7 , further comprising a wire electrode,
wherein the substrate includes an active area and an unactive area,
wherein the wire electrode is disposed on the unactive area, and
wherein the first sensing electrode and the second sensing electrode are disposed on the active area.

12. The touch window of claim 7 , wherein the third width is 2 to 5 times the first width and the second width.

13. The touch window of claim 7 , wherein the bridge electrode comprises mesh lines and opening parts formed by the mesh lines.

14. A touch device comprising;
a display panel; and
a touch window on the display panel,
wherein the display panel comprises;
a first substrate;
a thin film transistor on the first substrate; and
an organic light emitting device on the thin film transistor,
wherein the touch window comprises;
a cover substrate;
a substrate on the cover substrate;
a first sensing electrode on the substrate, and extending in one direction;
a second sensing electrode on the substrate, and extending in other direction different from the one direction, and including second unit sensing electrodes spaced apart from the first sensing electrode;
a bridge electrode connecting the second unit sensing electrodes to each other; and
an insulating layer between the first sensing electrode and the bridge electrode,
wherein the first sensing electrode and the second sensing electrode extending in mutually different directions are disposed on the substrate,
wherein the first and second sensing electrodes are disposed on a same surface of the substrate,
wherein the substrate is an encapsulation substrate,
wherein the first sensing electrode and the second sensing electrode comprise:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width; and
opening parts formed by the first and second mesh lines,
wherein the third width is a diagonal distance,
wherein the third width is larger than the first width and the second width, and
wherein the third width is less than or equal to 5 times the first width and the second width.

15. The touch device of claim 14 , wherein the third width is 2 to 5 times the fist width and the second width.

16. A touch window comprising:
a substrate;
a cover substrate on the substrate;
a first sensing electrode on the substrate, and extending in one direction;
a second sensing electrode on the substrate, and extending in other direction different from the one direction, and including second unit sensing electrodes spaced apart from the first sensing electrode;
a bridge electrode connecting the second unit sensing electrodes to each other; and
an insulating layer between the first sensing electrode and bridge electrode,
wherein the first and second sensing electrodes are disposed on a same surface of the substrate,
wherein the first sensing electrode and the second sensing electrode comprise:
a first mesh line extending in a first direction and having a first width;
a second mesh line extending in a direction different from the first direction and having a second width;
a cross area in which the first and second mesh lines cross each other, the cross area having a third width; and
opening parts formed by the first and second mesh lines,
wherein the third width is a diagonal distance,
wherein the third width is larger than the first width and the second width,
wherein the third width is 2 to 5 ti

Assignees

• Lg Innotek Co Ltd

Inventors

• Han Jung Hyuck
• Choe Yu Lim
• Koo Chan Kyu
• Shin Jun Sik
• Yang Joon Hyuk
• Lee Seung Jin
• Jeon Yu Hong

Classifications

• H05K1/0296

  Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295 (H05K1/11 takes precedence; lay-out adapted to mounted component configuration H05K1/18) · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• H05K2201/09272

  Layout details of angles or corners · CPC title

• H05K2201/09245

  Crossing layout · CPC title

• H05K3/28

  Applying non-metallic protective coatings {(H05K3/0091 takes precedence; methods for intermediate insulating layers for build-up multilayer circuits H05K3/4673)} · CPC title