Touch screen panel

• US 10,133,436 B2
• Filed: 04/04/2017
• Issued: 11/20/2018
• Est. Priority Date: 10/05/2012
• 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, Chang-Bum, Park, Jung-Mok, Kim, Hyung-Chul
• Primary Examiner(s): Mishler, Robin
• Application Number:
  US15/478,570
• Publication Number:
  US 20170205918A1
• Time in Patent Office: 595 Days
• Field of Search: None
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• 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

A touch screen panel includes a plurality of first sensing electrodes on a substrate, the plurality of first sensing electrodes being connected to each other in a first direction, a plurality of second sensing electrodes between the first sensing electrodes on the substrate, the plurality of second sensing electrodes being connected to each other in a second direction intersecting the first direction, a plurality of first connecting patterns connecting the first sensing electrodes to each other in the first direction, a plurality of second connecting patterns connecting the second sensing electrodes to each other in the second direction, a first insulating layer at least between the first connecting patterns and the second connecting patterns, and dummy patterns in at least one of the first and second sensing electrodes, the dummy patterns having island-shapes and being insulated from the first and second sensing electrodes.

Claims

1. A touch screen panel, comprising:

a plurality of first sensing electrodes on a substrate;

a plurality of second sensing electrodes between the first sensing electrodes on the substrate;

a plurality of first connecting patterns connecting the first sensing electrodes disposed in a same row;

a plurality of second connecting patterns connecting the second sensing electrodes disposed in a same column; and

a first insulating layer between the first connecting patterns and the second connecting patterns, wherein;

for an upper second sensing electrode and a lower second sensing electrode that are disposed immediately adjacent to each other in the same column, the upper second sensing electrode is electrically connected to the lower second sensing electrode by exactly two protrusion patterns, one protruding from each of the upper and lower second sensing electrodes, and two second connecting patterns, one end of each second connecting pattern being electrically connected to a respective protrusion pattern,

the protrusion patterns protrude along a direction that is not parallel to a column direction and a row direction, and

a longitudinal direction of the second connecting patterns is not parallel with the column direction and the row direction.

2. The touch screen panel of claim 1, further comprising a second insulating layer formed to cover an entire top surface of the touch screen panel.

3. The touch screen panel of claim 1, wherein the first connecting patterns and the protrusion patterns have a bent shape.

4. The touch screen panel of claim 1, wherein the first and second sensing electrodes and the first connecting patterns include a transparent electrode material, and the second connecting patterns include an opaque metal material.

5. The touch screen panel of claim 4, further comprising outer wires connecting the first and second sensing electrodes to an external driving circuit.

6. The touch screen panel of claim 5, wherein the second connecting patterns include a same material as the outer wires.

7. The touch screen panel of claim 1, wherein the second connecting patterns have an inclined shape in a diagonal direction.

8. A touch screen panel, comprising:

a plurality of first sensing electrodes on a substrate;

a plurality of second sensing electrodes between the first sensing electrodes on the substrate;

a plurality of first connecting patterns connecting the first sensing electrodes disposed in a same row;

a plurality of second connecting patterns connecting the second sensing electrodes disposed in a same column; and

a first insulating layer between the first connecting patterns and the second connecting patterns, wherein;

for an upper second sensing electrode and a lower second sensing electrode that are disposed immediately adjacent to each other in the same column, the upper second sensing electrode is electrically connected to the lower second sensing electrode by exactly two protrusion patterns, one protruding from each of the upper and lower second sensing electrodes, and two second connecting patterns, one end of each second connecting pattern being electrically connected to a respective protrusion pattern,

a longitudinal direction of the second connecting patterns is not parallel with a column direction and a row direction,

end portions of the second connecting patterns are located on the first insulating layer,

the second connecting patterns are electrically connected to adjacent second sensing electrodes through a contact hole formed in the first insulating layer, and

the protrusion patterns protrude along a direction that is not parallel to the column direction and the row direction.

9. The touch screen panel of claim 8, further comprising a second insulating layer formed to cover an entire top surface of the touch screen panel.

10. The touch screen panel of claim 8, wherein the first connecting patterns and the protrusion patterns have a bent shape.

11. The touch screen panel of claim 8, wherein the second connecting patterns have an inclined shape in a diagonal direction.

12. A touch screen panel, comprising:

a plurality of first sensing electrodes on a substrate;

a plurality of second sensing electrodes between the first sensing electrodes on the substrate;

a plurality of first connecting patterns connecting the first sensing electrodes disposed in a same row;

a plurality of second connecting patterns connecting the second sensing electrodes disposed in a same column;

a first insulating layer between the first connecting patterns and the second connecting patterns;

protrusion patterns protruding from each of the second sensing electrodes toward adjacent second sensing electrodes, one end of each second connecting pattern being electrically connected to a respective protrusion pattern; and

dummy patterns in at least one of the first and second sensing electrodes, the dummy patterns having island-shapes and being insulated from the first and second sensing electrodes, a longitudinal direction of at least one dummy pattern being non-parallel with an adjacent edge of the first and second sensing electrodes in which the at least one dummy pattern is formed.

13. The touch screen panel of claim 12, wherein the dummy patterns are adjacent to intersections of the first sensing electrodes with the second sensing electrodes.

14. The touch screen panel of claim 12, wherein the dummy patterns are spaced away from edges of the sensing electrodes in which the dummy patterns are formed.

15. The touch screen panel of claim 12, wherein the dummy patterns are in a same layer as the first and second sensing electrodes, the dummy patterns including a same material as the first and second sensing electrodes.

16. A touch screen panel, comprising:

a plurality of first sensing electrodes on a substrate;

a plurality of second sensing electrodes between the first sensing electrodes on the substrate;

a plurality of first connecting patterns connecting the first sensing electrodes disposed in a same row;

a plurality of second connecting patterns connecting the second sensing electrodes disposed in a same column;

a first insulating layer between the first connecting patterns and the second connecting patterns; and

a plurality of static electricity guidance patterns electrically connected to one of the first and second sensing electrodes, the static electricity guidance patterns extending to each of the second connecting patterns toward an adjacent respective first or second sensing electrode, the static electricity guidance patterns partially overlapping the adjacent respective first or second sensing electrode, wherein;

for an upper second sensing electrode and a lower second sensing electrode that are disposed immediately adjacent to each other in the same column, the upper second sensing electrode is electrically connected to the lower second sensing electrode by exactly two protrusion patterns, one protruding from each of the upper and lower second sensing electrodes, and two second connecting patterns, one end of each second connecting pattern being electrically connected to a respective protrusion pattern,

a longitudinal direction of the second connecting patterns is not parallel with a column direction and a row direction, and

the protrusion patterns protrude along a direction that is not parallel to the column direction and the row direction.

17. The touch screen panel of claim 16, wherein the static electricity guidance patterns are disposed in a same layer as the second connecting patterns and include a same material as the second connecting patterns.