Touch screen panel

• US 8,698,767 B2
• Filed: 05/05/2011
• Issued: 04/15/2014
• Est. Priority Date: 08/19/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kwak, Won-Kyu, Lee, Jae-Yong, Kim, Chang-Yeop, Lee, Jeong-Yeol
• Primary Examiner(s): Wang, Quan-Zhen
• Assistant Examiner(s): DAVIS, TONY O
• Application Number:
  US13/067,067
• Publication Number:
  US 20120044165A1
• Time in Patent Office: 1,076 Days
• Field of Search: 345172-175
• 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 3/0443 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
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

The present embodiments provide a touch screen panel. The touch screen panel may include: a plurality of first sensing patterns connected to each other in a long side direction of a screen, the plurality of first sensing patterns having at least one indenting unit inwardly indented from respective sides of a polygon; and a plurality of second sensing patterns connected to each other in a short side direction of the screen, the second sensing patterns having at least one protrusion protruding outwardly from respective sides of a polygon. Vertical and horizontal edges of the first sensing patterns and the second sensing patterns are tilted by a predetermined angle.

Claims

1. A touch screen panel, comprising:

a plurality of first sensing patterns arranged and connected to each other in a long side direction of a screen, each of the first sensing patterns having a polygon shape and including at least one indenting unit inwardly indented from at least one side thereof; and

a plurality of second sensing patterns arranged and connected to each other in a short side direction of the screen, each of the second sensing patterns having a polygon shape and including at least one protrusion protruding outwardly from at least one side thereof, wherein;

an area of each of the first sensing patterns is less than an area of each of the second sensing patterns, the first sensing patterns or the second sensing patterns are electrically connected to adjacent sensing patterns on a same line by bridge patterns, and the bridge patterns are each obliquely arranged so as to not be aligned in the long side direction in which the first sensing patterns are arranged or in the short side direction in which the second sensing patterns are arranged, wherein the first sensing patterns and the second sensing patterns are on an upper substrate of a flat display panel, further comprising;

a dummy pattern between the first sensing patterns and the second sensing patterns, wherein the dummy pattern includes a plurality of island dummy patterns, wherein horizontal edge units and vertical edge units of the plurality of island dummy patterns are implemented such that a length, in which the horizontal edge units and the vertical edge units are overlapped with a plurality of pixels, is minimal, and wherein horizontal edge units and vertical edge units of the island dummy patterns, the first sensing patterns, and the second sensing patterns have an angle of 10 degrees to 80 degrees, against the arrangement direction of the pixels.

2. The touch screen panel as claimed in claim 1, wherein vertical and horizontal edges of the first sensing patterns and the second sensing patterns are tilted by a predetermined angle.

3. The touch screen panel as claimed in claim 2, wherein the predetermined angle ranges from 2 degrees to 10 degrees.

4. The touch screen panel as claimed in claim 1, wherein the bridge patterns are made of low resistance opaque metal.

5. The touch screen panel as claimed in claim 1, wherein the first sensing patterns and the second sensing patterns are made of transparent conductive material.

6. The touch screen panel as claimed in claim 1, wherein the at least one protrusions of the second sensing patterns include a plurality of protrusions, the at least one indenting unit of the first sensing patterns include a plurality of indenting units, and the protrusions of the second sensing patterns are positioned in a space generated by the indenting units of the first sensing patterns.

7. The touch screen panel as claimed in claim 1, wherein the first sensing patterns and the second sensing patterns are formed in regions where the first and second sensing patterns are in an overlapping relationship with a plurality of pixels provided in a pixel region of the flat display panel, and a pitch of the pixels is not a multiple of a pitch of the first and second sensing patterns by any factor that is an integer.

8. The touch screen panel as claimed in claim 1, wherein the dummy pattern is made of a same transparent conductive material as that of the first sensing patterns and the second sensing patterns.

9. The touch screen panel as claimed in claim 1, wherein the island dummy patterns have a polygonal shape.

10. The touch screen panel as claimed in claim 1, wherein the dummy patterns are coupled with each other between the first sensing patterns and the second sensing patterns.