TOUCH SCREEN PANEL AND METHOD FOR FABRICATING THE SAME

• US 20100182259A1
• Filed: 11/19/2009
• Published: 07/22/2010
• Est. Priority Date: 01/16/2009
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Jin-Guen, Jung, Tae-Hyeog
• Granted Patent: US 8,345,021 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04107 Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A touch screen panel provided in an image display device. The touch screen panel includes a transparent substrate; a plurality of first sensing patterns on the transparent substrate and coupled to each other along a first direction; a first insulating film on the first sensing patterns; and a plurality of second sensing patterns on the first insulating film and coupled to each other along a second direction crossing the first direction, the second sensing patterns being alternately arranged with the first sensing patterns to not overlap with the first sensing patterns.

Claims

1. A touch screen panel comprising:

a transparent substrate;

a plurality of first sensing patterns on a first side of the transparent substrate and coupled to each other along a first direction;

a first insulating film on the first sensing patterns; and

a plurality of second sensing patterns on the first insulating film and coupled to each other along a second direction crossing the first direction, the second sensing patterns being alternately arranged with the first sensing patterns to not overlap with the first sensing patterns.

2. The touch screen panel as claimed in claim 1, wherein the first and second sensing patterns are composed of a transparent electrode material having a thickness between about 100 and about 300 Å

.

3. The touch screen panel as claimed in claim 1, wherein the first insulating film is composed of a transparent insulating material having a thickness between about 400 and about 1000 Å

.

4. The touch screen panel as claimed in claim 1,

wherein the first sensing patterns having a same X-coordinate are coupled to each other by a column unit and the second sensing patterns having a same Y-coordinate are coupled to each other by a row unit,

the touch screen panel further comprising a plurality of metal patterns on an edge portion of a region where the first and second sensing patterns are formed to electrically couple the first and second sensing patterns by the row unit or by the column unit to position detecting lines.

5. The touch screen panel as claimed in claim 1, further comprising:

a second insulating film on the second sensing patterns.

6. The touch screen panel as claimed in claim 1, further comprising:

a transparent ground electrode on a second side of the transparent substrate opposite to the first side of the transparent substrate.

7. A method of fabricating a touch screen panel, the method comprising:

forming a plurality of first sensing patterns to be coupled to each other along a first direction on a first side of a transparent substrate;

forming a first insulating film on the first sensing patterns; and

forming a plurality of second sensing patterns to be coupled to each other along a second direction on the first insulating film, the second sensing patterns being disposed not to overlap with the first sensing patterns, the second direction crossing the first direction.

8. The method of fabricating the touch screen panel as claimed in claim 7, wherein the first and second sensing patterns are coupled along the first direction or the second direction while being patterned.

9. The method of fabricating the touch screen panel as claimed in claim 7, wherein the first insulating film is formed by a printing method.

10. The method of fabricating the touch screen panel as claimed in claim 7, further comprising:

forming a second insulating film on the second sensing patterns by a printing method.

11. The method of fabricating the touch screen panel as claimed in claim 7, further comprising:

forming a transparent ground electrode on the a second side of the transparent substrate opposite to the first side of the transparent substrate.

12. The method of fabricating the touch screen panel as claimed in claim 7, wherein said forming the plurality of second sensing patterns comprises disposing the second sensing patterns alternately with the first sensing patterns to not overlap with the first sensing patterns.