Touch panel

• US 8,809,717 B2
• Filed: 08/08/2012
• Issued: 08/19/2014
• Est. Priority Date: 02/14/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Hong, Won-Ki, Nam, Seung Ho, Kim, Chul, Lee, Hyun-Ju
• Primary Examiner(s): Leon, Edwin A.
• Assistant Examiner(s): Jimenez, Anthony R.
• Application Number:
  US13/570,141
• Publication Number:
  US 20130206567A1
• Time in Patent Office: 741 Days
• Field of Search: 200/600, 200/46, 200/5.R, 200/5.A, 200/292, 200/511, 200/512, 345/173, 345/174, 345/177, 345/178
• US Class Current: 200/600
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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 panel is provided that includes: a substrate; a plurality of X-axis lines disposed on the substrate; a plurality of Y-axis lines crossing the plurality of X-axis lines; and an insulating layer interposed between the X-axis lines and the Y-axis lines, in which at least one first X-axis line and at least one second X-axis line selected from among the plurality of X-axis lines are connected by a first connection portion, and among the plurality of Y-axis lines, a Y-axis line crossing the first X-axis line and the second X-axis line has a first area in a region where the Y-axis line overlaps the first X-axis line and a second area in a region where the Y-axis line overlaps the second X-axis line, and the first area and the second area are different from each other.

Claims

1. A touch panel, comprising:

a substrate;

a plurality of X-axis lines disposed on the substrate;

a plurality of Y-axis lines crossing the plurality of X-axis lines; and

an insulating layer interposed between the X-axis lines and the Y-axis lines,

wherein at least one first X-axis line selected from among the plurality of X-axis lines overlaps a first Y-axis line selected from among the plurality of Y-axis lines at a first region and at least one second X-axis line selected from among the remaining plurality of X-axis lines extends substantially parallel to the first X-axis line and overlaps the first Y-axis line at a second region having a position different from the first region, the first X-axis line and the second X-axis line are connected by a first connection portion,

a first portion of the first Y-axis line overlapping the first X-axis line at the first region has a first area and a second portion of the first Y-axis line overlapping the second X-axis line at the second region has a second area, and

the first area and the second area are different from each other.

2. The touch panel of claim 1, wherein:

the first Y-axis line and at least one second Y-axis line selected from among the plurality of remaining Y-axis lines are connected by a second connection portion,

among the plurality of X-axis lines, an X-axis line crossing the first Y-axis line and the second Y-axis line has a third area in a region where the X-axis line overlaps the first Y-axis line and a fourth area in a region where the X-axis line overlaps the second Y-axis line, and

the third area and the fourth area are different from each other.

3. The touch panel of claim 2, wherein:

the first area, the second area, the third area, and the fourth area are different from one another.

4. The touch panel of claim 1, wherein:

the plurality of X-axis lines includes

a third X-axis line disposed between the first X-axis line and the second X-axis line and

a fourth X-axis line with the second X-axis line disposed between the third X-axis line and the fourth X-axis line, and

the third X-axis line and the fourth X-axis line are connected by a third connection portion.

5. The touch panel of claim 4, wherein:

the first connection portion and the third connection portion are positioned at left and right sides, respectively, of the touch panel when the touch panel is viewed from a top plan view.

6. The touch panel of claim 1, wherein:

the X-axis line is a sensing electrode and the Y-axis line is a driving electrode.

7. The touch panel of claim 1, wherein:

the first X-axis line and the second X-axis line have a same width and extend in a same direction.

8. The touch panel of claim 1, wherein:

the plurality of X-axis lines, the insulating layer, and the plurality of Y-axis lines are sequentially laminated, and

the touch panel further includes a passivation layer disposed on the plurality of Y-axis lines.

9. The touch panel of claim 1, further comprising:

a color filter disposed on the substrate,

wherein the color filter, the plurality of X-axis lines, and the plurality of Y-axis lines are disposed at a same plane as the substrate.

10. The touch panel of claim 1, wherein:

the plurality of X-axis lines comprise a transparent conductive material.

11. The touch panel of claim 1, wherein:

the plurality of Y-axis lines comprise a transparent conductive material.

12. A touch panel, comprising:

a substrate;

a plurality of X-axis lines disposed on the substrate;

a plurality of Y-axis lines crossing the plurality of X-axis lines; and

an insulating layer interposed between the X-axis lines and the Y-axis lines,

wherein at least one first X-axis line selected from among the plurality of X-axis lines crosses a first Y-axis line selected from among the plurality of Y-axis lines at a first position and at least one second X-axis line selected from among the plurality of X-axis lines extends substantially parallel to the first X-axis line and crosses the first Y-axis line at a second position different from the first position, the first X-axis line and the second X-axis line are connected by a first connection portion, and

the insulating layer has a first thickness at the first position and a second thickness at the second position, and

the first thickness and the second thickness are different from each other.

13. The touch panel of claim 12, wherein:

the first Y-axis line and at least one second Y-axis line selected from among the plurality of Y-axis lines are connected by a second connection portion,

the plurality of X-axis lines include a crossing X-axis line crossing the first Y-axis line and the second Y-axis line,

the insulating layer has a third region having a third thickness in a region where the first Y-axis line overlaps the crossing X-axis line and a fourth region having a fourth thickness in a region where the second Y-axis line overlaps the crossing X-axis line, and

the third thickness and the fourth thickness are different from each other.

14. The touch panel of claim 13, wherein:

the first thickness, the second thickness, the third thickness, and the fourth thickness are different from one another.

15. The touch panel of claim 12, wherein:

the plurality of X-axis lines include

a third X-axis line disposed between the first X-axis line and the second X-axis line and

a fourth X-axis line with the second X-axis line disposed between the third X-axis line and the fourth X-axis line, and

the third X-axis line and the fourth X-axis line are connected by a third connection portion.

16. The touch panel of claim 15, wherein:

the first connection portion and the third connection portion are positioned at left and right sides, respectively, of the touch panel when the touch panel is viewed from a top plan view.

17. The touch panel of claim 12, wherein:

the X-axis line is a sensing electrode and the Y-axis line is a driving electrode.

18. The touch panel of claim 12, wherein:

the first X-axis line and the second X-axis line have a same width and extend in a same direction.

19. The touch panel of claim 12, wherein:

the plurality of X-axis lines, the insulating layer, and the plurality of Y-axis lines are sequentially laminated, and

the touch panel further includes a passivation layer disposed on the plurality of Y-axis lines.

20. A touch panel, comprising:

a substrate;

a plurality of X-axis lines disposed on the substrate;

a plurality of Y-axis lines crossing the plurality of X-axis lines; and

a first connection portion connecting at least one first X-axis line selected from among the plurality of X-axis lines and at least one second X-axis line selected from among the remaining plurality of X-axis lines,

wherein the second X-axis line extends substantially parallel to and is spaced apart from the first X-axis line,

wherein the X-axis line comprises a plurality of X-axis electrode portions and the Y-axis line comprises a plurality of Y-axis electrode portions,

among the plurality of Y-axis lines, a Y-axis line crossing the first X-axis line and the second X-axis line comprises a first Y-axis electrode portion adjacent to a first X-axis electrode portion of the first X-axis line in a first direction and a second Y-axis electrode portion adjacent to a second X-axis electrode portion of the second X-axis line in the first direction, and

an area of a space between the first X-axis electrode portion and the first Y-axis electrode portion is different from an area of a space between the second X-axis electrode portion and the second Y-axis electrode portion.

21. The touch panel of claim 20, further comprising:

a second connection portion connecting at least one first Y-axis line and at least one second Y-axis line selected from among the plurality of Y-axis lines,

wherein among the plurality of X-axis lines, an X-axis line crossing the first Y-axis line and the second Y-axis line includes a third X-axis electrode portion adjacent to a third Y-axis electrode portion of the first Y-axis line in a second direction and a fourth X-axis electrode portion adjacent to a fourth Y-axis electrode portion of the second Y-axis line in the second direction, and

an area of a space between the third X-axis electrode portion and the third Y-axis electrode portion is different from an area of a space between the fourth X-axis electrode portion and the fourth Y-axis electrode portion.

22. The touch panel of claim 20, wherein:

the plurality of X-axis lines comprise

a third X-axis line disposed between the first X-axis line and the second X-axis line and

a fourth X-axis line with the second X-axis line disposed between the third X-axis line and the fourth X-axis line, and

the third X-axis line and the fourth X-axis line are connected by a third connection portion.

23. The touch panel of claim 22, wherein:

at least one Y-axis line selected from among the plurality of Y-axis lines is disposed between the first Y-axis line and the second Y-axis line.

24. The touch panel of claim 20, wherein:

the plurality of X-axis lines and the plurality of Y-axis lines are arranged at a same plane.

25. The touch panel of claim 20, wherein:

a shape of each X-axis electrode portion of the plurality of X-axis electrode portions and each Y-axis electrode portion of the plurality of Y-axis electrode portions is a rhombus.

26. The touch panel of claim 20, further comprising:

a passivation layer disposed on the plurality of X-axis lines and the plurality of Y-axis lines.