Touch screen panel

• US 9,753,576 B2
• Filed: 10/20/2016
• Issued: 09/05/2017
• Est. Priority Date: 03/23/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Group)
• Original Assignee: Samsung Display Company Limited (Samsung Group)
• Inventors: Kim, Do-Youb, Kwak, Won-Kyu, Jang, Brent
• Primary Examiner(s): Eisen, Alexander
• Assistant Examiner(s): ALMEIDA, CORY A
• Application Number:
  US15/299,297
• Publication Number:
  US 20170038902A1
• Time in Patent Office: 320 Days
• 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 unit comprising:

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

second connection patterns arranged 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 layer electrically isolating the first sensing cells from the second sensing cells,

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 in a single rectangular bar shape having an oblique angle with respect to the first or second direction.

2. The touch screen unit as claimed in claim 1, 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.

3. The touch screen unit as claimed in claim 2, wherein the insulating layer has a form of a plurality of islands that are spaced from each other.

4. The touch screen unit as claimed in claim 2, wherein the insulating layer comprises an inorganic insulating layer of a transparent material selected from the group consisting of silicon oxide (SiO2) and silicon nitride (SiNx).

5. The touch screen unit as claimed in claim 1, wherein the second connection patterns are in the rectangular bar shape.

6. The touch screen unit as claimed in claim 1, wherein the first and second sensing cells are made of indium-tin-oxide (ITO).