TOUCH PANEL AND INPUT RECOGNITION DEVICE USING THE TOUCH PANEL

• US 20150109254A1
• Filed: 01/05/2015
• Published: 04/23/2015
• Est. Priority Date: 01/15/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Sung-Soo, Park, Myeong-Sil, Han, Dong-Kyoon
• Granted Patent: US 9,557,849 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• 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 3/0416 Control or interface arrangements specially adapted for digitisers
• 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 including at least one first electrode pattern including a plurality of electrode lines arranged in a first direction; and at least one second electrode pattern including a plurality of second electrode lines arranged in a second direction to crossing the first direction; with each of the first and second electrode patterns including a center electrode line and two electrode lines positioned on a side of the center electrode line, with a first space separating the center electrode line from one of the two electrode lines, with a second space separating the one of the two electrode lines from the other of the two electrode lines, and with the first space being different from the second space.

Claims

1. A touch panel comprising:

at least one first electrode pattern including a plurality of electrode lines arranged in a first direction; and

at least one second electrode pattern including a plurality of electrode lines arranged in a second direction crossing the first direction,

wherein each of the first and second electrode patterns includes a center electrode line and two electrode lines positioned on a side of the center electrode line,

wherein a first space separates the center electrode line from one of the two electrode lines,

wherein a second space separates the one of the two electrode lines from the other of the two electrode lines, and

wherein the first space is different from the second space.

2. The touch panel of claim 1, wherein a width of the center electrode line is different from each of a width of the one of the two electrode lines and a width of the other of the two electrode lines.

3. The touch panel of claim 1, wherein the first space is smaller than the second space.

4. The touch panel of claim 1, wherein the first space is larger than the second space.

5. The touch panel of claim 1, wherein the first space is constant over a full length of the center electrode line, and the second space is constant over a full length of the one of the two electrode lines.

6. The touch panel of claim 2, wherein the center electrode line is wider than the one of the two electrode lines, and the one of the two electrode lines is wider than the other of the two electrode lines.

7. The touch panel of claim 2, wherein the center electrode line is narrower than the one of the two electrode lines, and the one of the two electrode lines are narrower than the other of the two electrode lines.

8. The touch panel of claim 1, wherein a first flat plate formed by the at least one first electrode pattern and a second flat plate formed by the at least one second electrode pattern form separate layers.

9. The touch panel of claim 1, wherein each of the center electrode line and the two electrode lines has a constant width over a full length thereof

10. An input recognition device using a touch panel, comprising:

the touch panel, including at least one first electrode pattern including a plurality of electrode lines arranged in a first direction and at least one second electrode pattern including a plurality of electrode lines arranged in a second direction crossing the first direction, with each of the first and second electrode patterns including a center electrode line and two electrode lines positioned on each side of the center electrode line, wherein a first space separates the center electrode line from one of the two electrode lines, a second space separates the one of the two electrode lines from the other of the two electrode lines, the first space is different from the second space, and the touch panel is configured to output a signal according to a touch input; and

a control unit, configured to determine a position of the touch input based on the signal output from the touch panel.

11. The input recognition device of claim 10, wherein a width of the center electrode line is different from each of a width of the one of the two electrode lines and a width of the other of the two electrode lines.

12. The input recognition device of claim 10, wherein the first space is smaller than the second space.

13. The input recognition device of claim 10, wherein the first space is larger than the second space.

14. The input recognition device of claim 10, wherein the first space is constant over a full length of the center electrode line, and the second space is constant over a full length of the one of the two electrode lines.

15. The input recognition device of claim 11, wherein the center electrode line is wider than the one of the two electrode lines, and the one of the two electrode lines is wider than the other of the two electrode lines.

16. The input recognition device of claim 11, wherein the center electrode line is narrower than the one of the two electrode lines, and the one of the two electrode lines are narrower than the other of the two electrode lines.

17. The input recognition device of claim 10, wherein a first flat plate formed by the at least one first electrode pattern and a second flat plate formed by the at least one second electrode pattern form separate layers.

18. The input recognition device of claim 10, wherein each of the center electrode line and the two electrode lines has a constant width over a full length thereof