Touch screen panel

• US 20100182255A1
• Filed: 11/10/2009
• 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 Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Jung, Tae-Hyeog, Jeong, Hwan-Hee, Lee, Choon-Hyop, Park, Jung-Mok, Kim, Shawn, Kim, Sang-Kook, Kang, Sung-Ku
• Granted Patent: US 8,345,020 B2
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04111 Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• 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

The touch screen panel of the present invention includes first sensing patterns formed on a transparent substrate, a first insulating film formed on the first sensing patterns, second sensing patterns formed on the first insulating film, a plurality of metal patterns disposed on edge regions of the first and second sensing patterns, and a plurality of auxiliary metal patterns formed in the same layer as the metal patterns. Each of the first and second sensing patterns has sensing cells and coupling lines. Each of the coupling lines connects two of the sensing cells. Each of the metal patterns is coupled to the first sensing pattern or to the second sensing pattern, and each of the auxiliary metal patterns being formed on one of the first coupling lines or on one of the second coupling lines.

Claims

1. A touch screen panel, comprising:

a transparent substrate;

first sensing patterns formed on the transparent substrate, each of the first sensing pattern comprising;

a first sensing cell; and

a first coupling line coupling the first sensing cell to a first sensing cell of another of the first sensing patterns arranged in a first direction;

a first insulating film formed on the first sensing pattern;

second sensing patterns formed on the first insulating film, each of the second sensing pattern comprising;

a second sensing cell; and

a second coupling line coupling the second sensing cell to a second sensing cell of another of the second sensing patterns arranged in a second direction;

a plurality of metal patterns disposed on edge regions of the first and second sensing patterns, each of the metal patterns being coupled to the first sensing patterns or to the second sensing patterns; and

a plurality of auxiliary metal patterns formed in the same layer as the metal patterns, each of the auxiliary metal patterns being formed on the first coupling line or on the second coupling line.

2. The touch screen panel as claimed in claim 1, wherein the second sensing cells are arranged alternately with the first sensing cells in order not to overlap with the first sensing cells.

3. The touch screen panel as claimed in claim 1, wherein the first and second sensing patterns are made of a transparent electrode material, each of the first and the second sensing patterns having a thickness of 100 angstroms to 300 angstroms.

4. The touch screen panel as claimed in claim 3, wherein the transparent electrode material includes indium tin oxide (ITO).

5. The touch screen panel as claimed in claim 1, wherein the metal patterns and the auxiliary metal patterns are made of a material having a lower specific resistance than materials of the first and second sensing patterns.

6. A touch screen panel, comprising:

a transparent substrate;

first sensing patterns formed on the transparent substrate, each of the first sensing pattern comprising;

a first sensing cell; and

a first coupling line coupling the first sensing cell to a first sensing cell of another of the first sensing patterns arranged in a first direction;

a first insulating film formed on the first sensing pattern;

second sensing patterns formed on the first insulating film, each of the second sensing pattern comprising;

a second sensing cell; and

a second coupling line coupling the second sensing cell to a second sensing cell of another of the second sensing patterns arranged in a second direction;

a plurality of metal patterns disposed on edge regions of the first and second sensing patterns, each of the metal patterns being coupled to the first sensing patterns or to the second sensing patterns; and

a plurality of auxiliary metal patterns formed in the same layer as the metal patterns, each of the auxiliary metal patterns being formed on the first coupling line or on the second coupling line, the auxiliary metal patterns being made of a material having a lower specific resistance than materials of the first and second sensing patterns.

7. The touch screen panel as claimed in claim 6, wherein the second sensing cells are arranged alternately with the first sensing cells in order not to overlap with the first sensing cells.

8. The touch screen panel as claimed in claim 6, wherein the first and second sensing patterns are made of a transparent electrode material, each of the first and the second sensing patterns having a thickness of 100 angstroms to 300 angstroms.

9. The touch screen panel as claimed in claim 6, wherein the metal patterns are made of the same material as the auxiliary metal patterns.