Touch window

Patent metadata

Field	Value
Publication number	US-9146413-B2
Application number	US-201313955856-A
Country	US
Kind code	B2
Filing date	Jul 31, 2013
Priority date	Sep 26, 2012
Publication date	Sep 29, 2015
Grant date	Sep 29, 2015

Abstract

Disclosed is a touch window. The touch window includes a cover window where a view area and a dead area surrounding the view area are defined; an electrode in the view area, the electrode sensing a touch position; an electrode substrate on which the electrode is formed; a sensor part in the dead area, the sensor part including a light receiving part and a light emitting part; and a scattered-reflection control part between the cover window and the sensor part.

First claim

What is claimed is:

1. A touch window comprising:
a cover window where a view area and a dead area surrounding the view area are defined;
an electrode in the view area, the electrode sensing a touch position;
an electrode substrate on which the electrode is formed;
a sensor part in the dead area, the sensor part including a light receiving part and a light emitting part; and
a scattered-reflection control part between the cover window and the sensor part.

2. The touch window of claim 1 , wherein the scattered-reflection control part extends from the electrode substrate.

3. The touch window of claim 1 , wherein the scattered-reflection control part is spaced apart from the electrode substrate and is disposed in the dead area.

4. The touch window of claim 1 , wherein the scattered-reflection control part includes a first through hole corresponding to the light receiving part and a second through hole corresponding to the light emitting part.

5. The touch window of claim 4 , wherein diameters of the first and second through holes are less than lengths of sections of the light receiving part and the light emitting part.

6. The touch window of claim 4 , wherein the first and second through holes are integrally formed.

7. The touch window of claim 4 , further comprising:
an adhesive layer between the cover window and the electrode substrate.

8. The touch window of claim 7 , wherein the adhesive layer includes a third through hole corresponding to the light receiving part and a fourth through hole corresponding to the light emitting part.

9. The touch window of claim 8 , wherein the electrode includes a first electrode on a first electrode substrate and a second electrode on a second electrode substrate, and the scattered-reflection control part includes a first scattered-reflection control part extending from the first electrode substrate and a second scattered-reflection control part extending from the second substrate.

10. The touch window of claim 9 , wherein the first scattered-reflection control part includes a fifth through hole corresponding to the light receiving part and a sixth through hole corresponding to the light emitting part, and the second scattered-reflection control part includes a seventh through hole corresponding to the light receiving part and an eighth through hole corresponding to the light emitting part.

11. The touch window of claim 10 , further comprising:
a display device disposed at a lower portion of the over window; and
a shield layer disposed between the cover window and the display device, wherein the scattered-reflection control part includes a third scattered reflection control part extending from the shield layer.

12. The touch window of claim 11 , wherein the third scattered-reflection control part includes a ninth through hole corresponding to the light receiving part and a tenth through hole corresponding to the light emitting part.

Assignees

• Lg Innotek Co Ltd

Inventors

• Kim Soo Keun

Classifications

• G02F1/13338 Primary

  Input devices, e.g. touch panels · CPC title

• G06F3/041 Primary

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

• H01L27/323

  Electricity · mapped topic

• B32B2457/208

  Touch screens · CPC title

• G06F3/0421 Primary

  by interrupting or reflecting a light beam, e.g. optical touch-screen · CPC title