Touch screen panel

• US 9,477,351 B2
• Filed: 11/18/2010
• Issued: 10/25/2016
• Est. Priority Date: 03/23/2010
• 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, Do-Youb, Kwak, Won-Kyu, Jang, Brent
• Primary Examiner(s): Eisen, Alexander
• Assistant Examiner(s): ALMEIDA, CORY A
• Application Number:
  US12/949,392
• Publication Number:
  US 20110234512A1
• Time in Patent Office: 2,168 Days
• Field of Search: 345173-179
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04111 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 3/0412 Digitisers structurally integrated in a display
• 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

A touch screen panel includes: a flat panel display including an upper substrate, a lower substrate, and pixels arranged on a display region of the lower substrate in a stripe arrangement; first sensing cells arranged in a first direction on the upper substrate and second sensing cells arranged in a second direction on the upper substrate; first connection patterns electrically connecting adjacent ones of the first sensing cells to each other in the first direction, and second connection patterns electrically connecting adjacent ones of the second sensing cells to each other in the second direction, wherein at least one of the first connection patterns and the second connection patterns is inclined so that it partially overlaps with the pixels.

Claims

1. A touch screen panel comprising:

a flat panel display comprising an upper substrate, a lower substrate, and pixels arranged on a display region of the lower substrate in a stripe arrangement;

first sensing cells arranged in a first direction on the upper substrate and second sensing cells arranged in a second direction on the upper substrate wherein the first and second directions define a plane;

first connection patterns electrically connecting adjacent ones of the first sensing cells to each other in the first direction;

second connection patterns electrically connecting adjacent ones of the second sensing cells to each other in the second direction; and

an insulating member electrically isolating the first sensing cells and the first connection patterns from the second sensing cells and the second connection patterns,

wherein an angle formed by the entire length of one of the first connection patterns and the first direction, in a plane defined by the first and second directions, is oblique, and an angle formed by the entire length of one of the second connection patterns and the second direction, in a plane defined by the first and second directions, is oblique, and

wherein the first and second connection patterns with the oblique angle are made of an opaque metal having a resistivity lower than that of the first and second sensing cells.

2. The touch screen panel as claimed in claim 1, wherein the first and second sensing cells are on a display region of the upper substrate that overlaps with the display region of the lower substrate.

3. The touch screen panel as claimed in claim 1, further comprising a plurality of metal patterns located at a periphery of a display region of the upper substrate on which the first and second sensing cells are located, the metal patterns electrically coupling the first and second sensing cells column-by-column or row-by-row.

4. The touch screen panel as claimed in claim 3, wherein the first and second connection patterns and the metal patterns are on a same layer and have a resistivity lower than that of a material forming the first and second sensing cells.

5. The touch screen panel as claimed in claim 1, wherein the second sensing cells are alternately arranged with the first sensing cells so that they do not overlap with the first sensing cells.

6. A touch screen panel comprising:

first connection patterns extending in a first direction on a transparent substrate;

second connection patterns extending in a second direction on the transparent substrate and being spaced from the first connection patterns wherein the first and second directions define a plane;

first sensing cells arranged in the first direction, adjacent ones of the first sensing cells being electrically coupled to each other by a corresponding one of the first connection patterns in the first direction;

second sensing cells arranged in the second direction, adjacent ones of the second sensing cells being electrically coupled to each other by a corresponding one of the second connection patterns in the second direction; and

an insulating member electrically isolating the first sensing cells and the first connection patterns from the second sensing cells and the second connection patterns,

wherein each of the first sensing cells is electrically connected to each adjacent first sensing cell by at least two of the first connection patterns, and

wherein the first connection patterns are formed in a single rectangular bar shape having an oblique angle with respect to the first or second direction.

7. The touch screen panel as claimed in claim 6, wherein one of the first connection patterns partially overlaps a corresponding one of the second sensing cells adjacent to two of the first sensing cells that are coupled to the one of the first connection patterns.

8. The touch screen panel as claimed in claim 7, wherein the insulating member has a form of a plurality of islands that are spaced from each other.

9. The touch screen panel as claimed in claim 7, wherein the insulating member comprises an inorganic insulating layer of a transparent material selected from the group consisting of silicon oxide (SiO2) and silicon nitride (SiNx).

10. The touch screen panel as claimed in claim 6, wherein the second connection patterns are formed in the rectangular bar shape.

11. The touch screen panel as claimed in claim 6, wherein the first and second sensing cells are made of indium-tin-oxide (ITO).

12. A touch screen panel comprising:

a flat panel display comprising an upper substrate, a lower substrate, and pixels arranged on a display region of the lower substrate in a stripe arrangement;

first sensing cells arranged in a first direction on the upper substrate and second sensing cells arranged in a second direction on the upper substrate;

first connection patterns electrically connecting adjacent ones of the first sensing cells to each other in the first direction;

second connection patterns electrically connecting adjacent ones of the second sensing cells to each other in the second direction; and

an insulating member electrically isolating the first sensing cells and the first connection patterns from the second sensing cells and the second connection patterns,

wherein an angle formed by an overlap of the first connection patterns and the second connection patterns, in a plane defined by the first and second directions, is oblique, and

wherein the overlap occurs in an area between adjacent ones of the first sensing cells and adjacent ones of the second sensing cells.

13. The touch screen panel as claimed in claim 12, wherein the connection patterns with the oblique angle are made of a low resistivity opaque metal.

14. The touch screen panel as claimed in claim 12, wherein the first and second sensing cells are on a d4lay region of the upper substrate that overlaps with the display region of the lower substrate.

15. The touch screen panel as claimed in claim 12, further comprising a plurality of metal patterns located at a periphery of a display region of the upper substrate on which the first and second sensing cells are located, the metal patterns electrically coupling the first and second sensing cells column-by-column or row-by-row.

16. The touch screen panel as claimed in claim 15, wherein the first and second connection patterns and the metal patterns are on a same layer and have a resistivity lower than that of a material forming the first and second sensing cells.

17. The touch screen panel as claimed in claim 12, wherein the second sensing cells are alternately arranged with the first sensing cells so that they do not overlap with the first sensing cells.