Touch screen panel

• US 8,358,284 B2
• Filed: 11/10/2009
• Issued: 01/22/2013
• 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: Jeong, Hwan-Hee, Jung, Tae-Hyeog, Kang, Sung-Ku, Park, Jung-Mok, Lee, Choon-Hyop, Kim, Shawn, Kim, Sang-Kook
• Primary Examiner(s): Shankar, Vijay
• Application Number:
  US12/591,159
• Publication Number:
  US 20100182256A1
• Time in Patent Office: 1,169 Days
• Field of Search: 345 89- 98, 345173-178, 345204-215, 178 1801- 1809, 178 2001- 2004
• US Class Current: 345/174
• 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 3/0443 using a single layer of sensing electrodes
• 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 according to the embodiment of the present invention includes a plurality of coupling patterns arranged on a transparent substrate in an island shape, an insulating film formed on the coupling patterns and having contact holes arranged corresponding to end portions of the coupling patterns, and first and second sensing patterns formed on the insulating film. The second sensing pattern includes second sensing cells, and each of the second sensing cells are formed in a region of the insulating film having a pair of adjacent contact holes to be electrically coupled to coupling patterns exposed through the contact holes.

Claims

1. A touch screen panel, comprising:

a plurality of coupling patterns arranged on a transparent substrate;

an insulating film formed on the transparent substrate and covering the coupling patterns, the insulating film having contact holes, a portion of each of the coupling patterns being exposed through one of the contact holes;

first sensing patterns formed on the insulating film;

second sensing patterns formed on the insulating film, each of the second sensing patterns covering one of the contact holes, the each of the second sensing patterns being connected to one of the coupling patterns through the one of the contact holes; and

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

2. The touch screen panel as claimed in claim 1, wherein each of the first sensing patterns comprises:

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.

3. The touch screen panel as claimed in claim 1, wherein the second sensing patterns are disposed alternately with the first sensing cell of the first sensing patterns so as not to overlap with the first sensing cell of the first sensing patterns.

4. The touch screen panel as claimed in claim 1, wherein each of the second sensing patterns comprises a second sensing cell.

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

the metal patterns are 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.

6. The touch screen panel as claimed in claim 1, wherein the plurality of coupling patterns are made of a transparent electrode material.

7. The touch screen panel as claimed in claim 6, wherein the second sensing patterns are disposed on the same layer of the first sensing patterns.

8. 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 second sensing patterns having a thickness of 100 angstroms to 300 angstroms.

9. The touch screen panel as claimed in claim 8, wherein the transparent electrode material includes indium tin oxide (ITO).