TOUCH WINDOW AND LCD USING THE SAME

• US 20140168545A1
• Filed: 11/02/2011
• Published: 06/19/2014
• Est. Priority Date: 07/28/2011
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Han, Jae Heung, Kim, Jang Whan
• Granted Patent: US 9,766,490 B2
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires

Abstract

Provided is a structure capable of improving a freedom of a design and manufacturing process efficiency of an icon area of a touch window. To this end, a touch window is configured to include a sensing unit that is disposed on a transparent window and senses a contact through sensing electrode patterns, wiring parts electrically connected with the sensing electrode patterns, and a metal pattern part for a function connected with ends of the wiring parts.

As set forth above, in forming the icon area of the touch window, the exemplary embodiment of the present can improve the freedom of a design while improving the manufacturing process efficiency by patterning the metal pattern part that is the signal input unit of functions formed on the surface of the transparent window at the time of implementing the sensing electrode pattern, in forming the icon area of the touch window.

Claims

1. A touch window, comprising:

a transparent window;

a sensing unit for being disposed on the transparent window and senses a contact through sensing electrode patterns;

wiring parts for being electrically connected to the sensing electrode patterns; and

metal pattern parts for functions for being connected with ends of the wiring parts.

7. The touch window of claim 1, wherein the sensing unit includes:

a first sensing electrode pattern that is patterned on one surface of the transparent window; and

a second sensing electrode pattern that is patterned on the transparent substrate coupled with the transparent window via the adhesive material layer.

8. The touch window of claim 7, wherein the metal pattern part is formed on the transparent window.

9. The touch window of claim 1, wherein the sensing unit includes the first sensing electrode pattern and the second sensing electrode pattern that are directly patterned on one surface of the transparent window in a structure in which the first sensing electrode pattern and the second sensing electrode pattern are insulated from each other.

10. The touch window of claim 9, wherein the metal pattern part is disposed on the transparent window.

11. The touch window of any one-of claims 1 to 10, wherein the metal pattern part implements the light transmitting pattern on the metal pattern part to control transmittance.

12. The touch window of any one of claims 1 to 10, wherein the transparent substrate is a film material or a glass material.

13. The touch window of claim 12, wherein the film material is made of any one of polyethylene terephthalate (PET), polycarbonate (PC), polyether sulfone (PES), polyimide (PI), polymethyl methaacrylate (PMMA).

14. The touch window of claim 12, wherein the first sensing electrode pattern and the second sensing electrode pattern are any one of indium-tin oxide (ITO), indium zinc oxide (IZO), and zinc oxide (ZnO).

15. The touch window of claim 12, wherein the wiring part and the metal pattern part are made of the same material.

16. The touch window of claim 12, wherein the wiring part and the metal pattern part are made of Ag.

17. The touch window of claim 15, wherein the metal pattern part further includes any one reflective material of TiO2, CaCO3, BaSO4, Al2O3, Silicon, PS, and Al.

18. The touch window of claim 15, wherein the first and second sensing electrode patterns, the wiring pattern, and the metal pattern part are made of the same material.

19. A liquid crystal display, comprising:

a backlight unit emitting light;

a liquid crystal module including a color filter and a thin film transistor receiving light emitted from the backlight unit; and

the touch window of claim 12.

2. The touch window of claim 21, wherein the sensing unit includes a first sensing electrode pattern and a second sensing electrode pattern that are patterned on a transparent substrate coupled with the transparent window via adhesive material layers.

3. The touch window of claim 2, wherein the metal pattern part is disposed on the same plane as the first sensing electrode pattern or the second sensing electrode pattern.

4. The touch window of claim 3, wherein the sensing unit has a structure in which the first sensing electrode pattern and the second sensing electrode pattern are patterned on one surface of the same transparent substrate so as to be insulated from each other.

5. The touch window of claim 3, wherein the sensing unit has a structure in which the first sensing electrode pattern and the second sensing electrode pattern are each patterned on one surface and the other surface of the same transparent substrate.

6. The touch window of claim 3, wherein the sensing unit has a structure in which the first sensing electrode pattern and the second sensing electrode pattern are each patterned on surfaces of different transparent substrates.