Touch window and display device comprising same

• US 10,437,362 B2
• Filed: 08/21/2014
• Issued: 10/08/2019
• Est. Priority Date: 09/27/2013
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Choi, Joon Rak, Sohn, Hyung Min, Lee, Sun Young, Lee, Young Jae, Yoon, Soo Kwang, Lim, Hyun Seok, Choi, Gwang Hei
• Primary Examiner(s): Boddie, William
• Assistant Examiner(s): Parker, Jeffrey
• Application Number:
  US15/025,255
• Publication Number:
  US 20160216793A1
• Time in Patent Office: 1,874 Days
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads

Abstract

A touch window according to one embodiment comprises: a substrate having an effective area and an ineffective area; a sensing electrode arranged in the effective area and sensing a position; and a wiring arranged in the effective area and the ineffective area and electrically connecting to the sensing electrode, wherein the wiring comprises a first wiring and a second wiring such that the first wiring and the second wiring are vertically arranged.

Claims

1. A touch window comprising:

a substrate;

a deco layer on the substrate;

a sensing layer on the substrate, wherein the sensing layer includes;

a reception electrode that receives a signal; and

a transmission electrode that transmits a signal;

an intermediate layer on the deco layer; and

wiring lines electrically connected to the sensing layer,

wherein holes are formed through the intermediate layer,

wherein the wiring lines comprise first wiring lines and second wiring lines,

wherein the sensing electrode, the deco layer, and the first wires are disposed between the intermediate layer and the substrate, and the second wires are disposed on an upper surface of the intermediate layer that is opposite the substrate,

wherein the first wires are disposed on a planar surface formed by the deco layer and the sensing layer,

wherein the first wiring lines includes a transmission first wiring line electrically coupled to the transmission electrode and a reception first wiring line electrically coupled to the reception electrode,

wherein the second wiring lines includes a transmission second wiring line electrically coupled to the transmission electrode and a reception second wiring line electrically coupled to the reception electrode,

wherein the transmission first wiring line and the transmission second wiring line are coupled to each other through one of the holes,

wherein the reception first wiring line and the reception second wiring line are coupled to each other through another one of the holes,

wherein the reception second wiring line and the transmission first wiring line cross each other on the substrate,

wherein the intermediate layer comprises;

a first intermediate part disposed on the active area; and

a second intermediate part integrally formed with the first intermediate part and disposed on the unactive area,

wherein the first intermediate part covers the sensing layer,

wherein the reception electrode includes a plurality of first electrode patterns, and the transmission electrode includes a plurality of second electrode patterns,

wherein a quantity of the first electrode patterns corresponds to a quantity of the second electrode patterns,

wherein a shape of the first electrode patterns corresponds to a shape of the second electrode patterns, and

wherein a material of the first wiring line and the second wiring line is different,

further comprising pads disposed at a first end of the substrate,

wherein the sensing electrode and the first wires are disposed on a lower surface of the intermediate layer facing the substrate, and the second wires and the pads are disposed on an upper surface of the intermediate layer that is opposite the lower surface,

wherein the holes are formed at a second end of the substrate that is opposite to the first end,

wherein the first wiring lines extend along the lower surface and between the sensing electrode and the holes in a first direction between the first end and the second end, and

wherein the second wiring lines extend between the holes and the pads along the upper surface, the second wiring lines extending from the holes in a second direction that intersects the first direction.

2. The touch window of claim 1, wherein the first wiring lines and the second wiring lines cross each other on the substrate.

3. The touch window of claim 2, wherein the first wiring lines are disposed on the deco layer.

4. The touch window of claim 2, wherein the second wiring lines are disposed on the intermediate layer.

5. The touch window of claim 2, wherein the intermediate layer comprises a first intermediate layer and a second intermediate layer on the first intermediate layer.

6. The touch window of claim 5, wherein the first intermediate layer is disposed on the deco layer.

7. The touch window of claim 5, wherein the second intermediate layer is disposed on the first wiring lines.

8. The touch window of claim 1,

wherein the reception electrode and the transmission electrode are disposed on a same plane.

9. The touch window of claim 1, wherein the intermediate layer includes a photosensitive film.

10. The touch window of claim 1, wherein the first intermediate part and the second intermediate part include a same material.