Touch window and touch device including the same

Patent metadata

Field	Value
Publication number	US-9618982-B2
Application number	US-201414446001-A
Country	US
Kind code	B2
Filing date	Jul 29, 2014
Priority date	Jul 29, 2013
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

Disclosed is a touch window. The touch window includes a substrate; a sensing electrode disposed on the substrate to sense a position; wire parts to electrically connect the sensing electrode; and a dummy pattern between the wire parts, wherein the wire parts include first extending parts and second extending parts having mutually different directionalities.

First claim

What is claimed is:

1. A touch window comprising: a substrate comprising an active area and an inactive area;
a sensing electrode disposed on the active area of the substrate to sense a position;
a wire part to electrically connect the sensing electrodes and an electrode pad placed at an end of the wire part,
wherein the wire part includes a plurality of wire parts disposed on the inactive area of the substrate,
wherein the plurality of wire parts include first extending parts and second extending parts having mutually different directionalities,
wherein the first and second extending parts include a main pattern and a conductive layer on the main pattern,
wherein the wire part includes a plurality of dummy patterns,
wherein the plurality of dummy patterns are disposed between two adjacent first extending parts,
wherein the plurality of dummy patterns are disposed between two adjacent second extending parts, and
wherein the dummy patterns are extended in a same direction as that of the first extending parts or the second extending parts,
wherein an extended length of each dummy pattern is longer than an extended length of the first extending parts or the second extending parts,
wherein the plurality of dummy patterns are disposed between two adjacent electrode pads, wherein a line width of the main pattern is in a range of 1 μm to 100 μm, wherein a distance between the main pattern and an adjacent main pattern is in a range of 1 μm to 100 μm,
wherein a line width of each dummy pattern is in a range of 50 nm to 300 nm,
wherein a line width of the conductive layer on the main pattern is greater than the line width of the dummy pattern, and
wherein a distance between adjacent dummy patterns is equal to or less than the line width of each dummy pattern.

2. The touch window of claim 1 , wherein the main pattern is disposed in a mesh shape.

3. The touch window of claim 1 , wherein the dummy patterns extend in one direction.

4. The touch window of claim 1 , wherein the main pattern and the dummy patterns include resin.

5. The touch window of claim 1 , wherein the conductive layer includes Cu, Au, Ag, Al, Ti, Ni, or an alloy of any of them.

6. The touch window of claim 1 , wherein the main pattern is convex or concave.

7. A touch window comprising:
a substrate comprising an active area and an inactive area;
a sensing electrode disposed on the active area of the substrate to sense a position; and
a wire part to electrically connect the sensing electrodes and
an electrode pad placed at an end of the wire part,
wherein the wire part includes a plurality of wire parts disposed on the inactive area of the substrate,
wherein the wire part includes a main pattern and a plurality of dummy patterns adjacent to the main pattern; and
a conductive layer on the main pattern,
wherein the plurality of dummy patterns are disposed among the main pattern, wherein an extended length of each dummy pattern is longer than an extended length of the conductive layer,
wherein the plurality of dummy patterns are disposed between two adjacent electrode pads, wherein a line width of the main pattern is greater than a line width of each dummy pattern wherein a line width of the conductive layer on the main pattern is greater than the line width of each dummy pattern,
wherein a distance between adjacent dummy patterns is equal to or less than the line width of each dummy pattern,
wherein the line width of the main pattern is in a range of 1 μm to 100 μm, wherein a distance between the main pattern and an adjacent main pattern is in a range of 1 μm to 100 μm,
wherein the line width of each dummy pattern is in a range of from 50 nm to 300 nm, wherein an end of the conductive layer is disposed on a portion of a side surface of the main pattern, and
wherein the conductive layer surrounds an upper surface and the side surface of the main pattern.

8. The touch window of claim 7 , wherein the main pattern is convex or concave.

9. The touch window of claim 7 , wherein the main pattern includes a first extending part extending in a first direction; and
a second extending part extending in a second direction.

10. The touch window of claim 7 , wherein the dummy pattern extends in one direction.

11. The touch window of claim 7 , wherein the conductive layer includes Cu, Au, Ag, Al, Ti, Ni, or an alloy of any of them.

12. The touch window of claim 7 , wherein the main pattern includes a conductive pattern.

13. The touch window of claim 12 , wherein a line width of the conductive pattern of the main pattern is in a range of 0.5 μm to 5 μm.

14. The touch window of claim 12 , wherein a line width of the conductive pattern of the main pattern is greater than the line width of the dummy pattern.

15. The touch window of claim 7 , wherein the main pattern crosses the dummy pattern.

16. A touch device comprising:
a touch window; and
a driving unit on the touch window,
wherein the touch window includes:
a substrate comprising an active area and an inactive area;
a sensing electrode disposed on the active area of the substrate to sense a position;
and a wire part to electrically connect the sensing electrodes; and
an electrode pad placed at an end of the wire part,
wherein the wire part includes a plurality of wire parts disposed on the inactive area of the substrate,
wherein the plurality of wire parts include first extending parts and second extending parts having mutually different directionalities,
wherein the first and second extending parts include a main pattern and a conductive layer on the main pattern,
wherein the wire part includes a plurality of dummy patterns,
wherein the plurality of dummy patterns are disposed between two adjacent first extending parts,
wherein the plurality of dummy patterns are disposed between two adjacent second extending parts, and
wherein the dummy patterns are extended in a same direction as that of the first extending parts or the second extending parts,
wherein an extended length of each dummy pattern is longer than an extended length of the first extending, parts or the second extending parts,
wherein the plurality of dummy patterns are disposed between two adjacent electrode pads, wherein a line width of the main pattern is in a range of 1 μm to 100 μm, wherein a distance between the main pattern and an adjacent main pattern is in a range of 1 μm to 100 μm,
wherein a line width of each dummy pattern is in a range of 50 nm to 300 nm, wherein a line width of the conductive layer of the main pattern is greater than the line width of each dummy pattern, and
wherein a distance between adjacent dummy patterns is equal to or less than the line width of each dummy pattern.

17. The touch window of claim 7 , wherein the dummy pattern is convex.

Assignees

• Lg Innotek Co Ltd

Inventors

• Koo Chan Kyu
• Bang Jung Hwan
• Kim Jong Sun
• Kim Tae Kyung
• Kim Hyun Soo
• Shin Jun Sik
• Yang Joon Hyuk
• Chung Ji Hyouk

Classifications

• G01R27/2605

  Measuring capacitance (capacitive sensors G01D5/24) · CPC title

• G06F3/0416

  Control or interface arrangements specially adapted for digitisers · 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

• G06F3/044

  by capacitive means · CPC title

• G06F1/1692 Primary

  the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders · CPC title