IP Library › Granted Patent US 9,323,370
Granted Patent B2
US 9,323,370 · App. 14/359,921 · Granted Apr 26, 2016

Electrode sheet, touch panel, and display device

Inventor: Takeshi Masuda (Osaka, JP)
Assignee: Sharp Kabushiki Kaisha
G06F3/041G06F3/044
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Quick Facts
Patent No.
US 9,323,370
App. No.
14/359,921
Granted
Apr 26, 2016
Kind
B2
Abstract

An electrode sheet ( 2 ) is provided with an X pattern electrode part ( 12 ) in which X pattern electrodes ( 18 ) of X electrodes ( 17 ) multiply connected in the X direction are multiply arranged in the Y direction, and a Y pattern electrode part ( 22 ) in which Y pattern electrodes ( 28 ) of Y electrodes ( 27 ) multiply connected in the Y direction are multiply arranged in the X direction. In a planar view, the Y electrodes ( 27 ) are provided between the X electrodes ( 17 ), and multiple different electrode patterns are alternately arranged in one of the X direction, the Y direction, and a diagonal direction.

Claims (40)

1. An electrode sheet for a touch panel comprising:

a first pattern electrode part in which first pattern electrode lines of first pattern electrodes multiply connected in a first direction are multiply arranged in a second direction orthogonal to the first direction; and

a second pattern electrode part in which second pattern electrode lines of second pattern electrodes multiply connected in the second direction are multiply arranged in the first direction;

wherein in the first and second pattern electrode parts, the second pattern electrode lines are provided between the first pattern electrode lines when viewed from a direction perpendicular to these pattern electrode parts,

the first and second pattern electrodes each internally include an electrode pattern periodically formed by traces and lattice-shaped electrode patterns whose periods differ between one edge and an edge in a direction perpendicular to the one edge, respectively, and

multiple different electrode patterns are alternately arranged in a direction from among the first direction, the second direction, and a direction intersecting the first direction and the second direction when viewed from a direction perpendicular to the first and second electrode pattern parts, and the multiple different electrode patterns have mutually different periods.

2. The electrode sheet according to claim 1 , wherein

lattice sizes of the lattice-shaped electrode patterns are mutually different between the first pattern electrodes and the second pattern electrodes.

3. The electrode sheet according to claim 1 , wherein

the lattice-shaped electrode patterns of at least one of either the first or the second pattern electrodes internally include multiple different sizes as the electrode pattern.

4. The electrode sheet according to claim 1 , wherein

the second pattern electrode lines include electrode patterns that are the same as electrode patterns obtained by rotating the first pattern electrode lines.

5. The electrode sheet according to claim 1 , wherein

the first and second pattern electrode lines respectively include multiple connecting parts between adjacent pattern electrodes.

6. The electrode sheet according to claim 1 , wherein

the multiple different electrode patterns have mutually different periodic directions.

7. The electrode sheet according to claim 6 , wherein

the second pattern electrode lines include electrode patterns that are the same as electrode patterns obtained by rotating the first pattern electrode lines.

8. The electrode sheet according to claim 1 , wherein

the electrode patterns provided inside the first pattern electrodes and the electrode patterns provided inside the second pattern electrodes have mutually different periodic directions.

9. The electrode sheet according to claim 1 , wherein

the first and second pattern electrodes are respectively rectangular,

in the first pattern electrode lines, the first pattern electrodes are respectively connected at a corner part of the first pattern electrodes,

in the second pattern electrode lines, the second pattern electrodes are respectively connected at a corner part of the second pattern electrodes,

traces provided inside the first pattern electrodes are parallel to an edge of the first pattern electrodes, and

traces provided inside the second pattern electrodes are parallel to an edge of the second pattern electrodes, and in addition, traces provided inside the second pattern electrodes have a tilt direction that differs by 90 degrees from the traces provided inside the first pattern electrodes.

10. The electrode sheet according to claim 1 , wherein

the pattern electrodes of at least one of either the first or the second pattern electrodes internally include multiple electrode patterns with different periodic directions as the electrode pattern.

11. The electrode sheet according to claim 1 , wherein

the first and second pattern electrodes are respectively rectangular,

in the first pattern electrode lines, the first pattern electrodes are respectively connected at a corner part of the first pattern electrodes,

in the second pattern electrode lines, the second pattern electrodes are respectively connected at a corner part of the second pattern electrodes,

traces provided inside the first pattern electrodes respectively have geometrically similar shapes to an outer shape of the first pattern electrodes, the traces provided inside the first pattern electrodes respectively have shapes that are successively reduced farther inward in the first pattern electrodes, and the traces provided inside the first pattern electrodes respectively are joined to each other by joining traces, and

traces provided inside the second pattern electrodes respectively have geometrically similar shapes to an outer shape of the second pattern electrodes, the traces provided inside the second pattern electrodes respectively have shapes that are successively reduced farther inward in the second pattern electrodes, and the traces provided inside the second pattern electrodes respectively are joined to each other by joining traces.

12. The electrode sheet according to claim 1 , wherein

in the first and the second pattern electrodes, overlapping traces do not exist except at respective pattern electrode connecting parts when viewed from a direction perpendicular to the first and the second pattern electrode parts.

13. A touch panel comprising:

the electrode sheet according to claim 1 .

14. A display device comprising:

the touch panel according to claim 13 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 22, 2014
From: MASUDA, TAKESHI
To: SHARP KABUSHIKI KAISHA
Reel/Frame 032946/0099 →
Priority Claims (1)
JP 2012-066190 · Mar 22, 2012 · national
Continuity (1)
Related Publication 20140320769A1 · Oct 30, 2014