METHOD AND APPARATUS FOR FORMING ELECTRODE PATTERN ON TOUCH PANEL

• US 20110242028A1
• Filed: 03/29/2011
• Published: 10/06/2011
• Est. Priority Date: 04/02/2010
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Kyung-myun, Lee, Chang-ju, Chol, Yoon-kyung
• Application Number:
  US13/074,042
• Publication Number:
  US 20110242028A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/044 by capacitive means
• 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 sense panel includes a first set of individual sensing units for sensing a location along a first axis. The first set of individual sensing units includes a first plurality of strings of individual sensing units, each string including at least two of the individual sensing units of the first set. The at least two individual sensing units are electrically connected to each other and arranged in a direction perpendicular to the first axis. A first individual sensing unit of a first string of the first plurality of strings is electrically connected to a first individual sensing unit of a second string of the first plurality of strings, the second string adjacent to the first string, such that the first string and the second string form a single, first electrode.

Claims

1. A touch sense panel, comprising:

a first set of individual sensing units for sensing a location along a first axis;

the first set of individual sensing units including a first plurality of strings of individual sensing units, each string including at least two of the individual sensing units of the first set, the at least two individual sensing units electrically connected to each other and arranged in a direction perpendicular to the first axis;

wherein a first individual sensing unit of a first string of the first plurality of strings is electrically connected to a first individual sensing unit of a second string of the first plurality of strings, the second string adjacent to the first string, such that the first string and the second string form a single, first electrode.

2. The touch sense panel of claim 1, wherein:

the first sensing unit of the first string and the first sensing unit of the second string are arranged adjacent to each other in a direction parallel to the first axis.

3. The touch sense panel of claim 1, wherein:

a second sensing unit of the first string is electrically connected to a second sensing unit of the second string.

4. The touch sense panel of claim 1, wherein:

the first electrode is connected to a touch controller through a connection line.

5. The touch sense panel of claim 1, wherein:

the first set of individual sensing units includes individual first electrodes having a diamond shape, such that at least one corner of each individual first electrode is adjacent a corner of another one of the individual first electrodes.

6. The touch sense panel of claim 1, further comprising:

a second set of individual sensing units for sensing a location along a second axis, the second set of individual sensing units interleaved with the first set of individual sensing units.

7. The touch sense panel of claim 6, wherein:

the second set of individual sensing units include a plurality of second strings of individual sensing units, each string including at least two of the individual sensing units of the second set, the at least two individual sensing units electrically connected to each other and arranged in a direction perpendicular to the second axis;

wherein a first individual sensing unit of a first string of the plurality of second strings is electrically connected to a first individual sensing unit of a second string of the plurality of second strings, the second string adjacent to the first string, such that the first string and the second string form a single, second electrode.

8. The touch sense panel of claim 7, wherein:

the first electrode is connected to a touch controller through a first connection line; and

the second electrode is connected to the touch controller through a second connection line.

9. The touch sense panel of claim 7, wherein:

the first axis is perpendicular to the second axis.

10. The touch sense panel of claim 7, wherein:

the first set of individual sensing units includes individual first electrodes having a diamond shape, such that at least one corner of each individual first electrode is adjacent a corner of another one of the individual first electrodes;

the second set of individual sensing units includes individual second electrodes having a diamond shape, such that at least one corner of each individual second electrode is adjacent a corner of another one of the individual second electrodes; and

at least one side of each individual first electrode is adjacent a side of an individual second electrode.

11. The touch sense panel of claim 1, wherein:

the touch sense panel is connected to a controller and is overlaid on a display panel.

12. A touch sense panel, comprising:

a first set of individual sensing units for sensing a location along a first axis, the first set of individual sensing units comprising;

a first electrode including at least two of the individual sensing units of the first set arranged in a direction perpendicular to the first axis; and

a second electrode including at least two other of the individual sensing units of the first set arranged in a direction perpendicular to the first axis,

wherein the first electrode and the second electrode are electrically connected to each other to form a first common electrode.

13. The touch sense panel of claim 12, further comprising:

a second set of individual sensing units for sensing a location along a second axis, the second set of individual sensing units interleaved with the first set, and comprising;

a third electrode including at least two of the individual sensing units of the second set arranged in a direction perpendicular to the second axis; and

a fourth electrode including at least two other of the individual sensing units of the second set arranged in a direction perpendicular to the second axis,

wherein the third electrode and the fourth electrode are electrically connected to each other to form a second common electrode.

14. The touch sense panel of claim 13, wherein:

the first axis is perpendicular to the second axis.

15. The touch sense panel of claim 13, wherein:

the first common electrode is connected to a touch controller through a first connection line; and

the second common electrode is connected to the touch controller through a second connection line.

16. The touch sense panel of claim 13, wherein

the first set of individual sensing units includes individual first electrodes having a diamond shape, such that at least one corner of each individual first electrode is adjacent a corner of another one of the individual first electrodes;

the second set of individual sensing units includes individual second electrodes having a diamond shape, such that at least one corner of each individual second electrode is adjacent a corner of another one of the individual second electrodes; and

at least one side of each individual first electrode is adjacent a side of an individual second electrode.

17. The touch sense panel of claim 12, wherein:

the touch sense panel is connected to a controller and is overlaid on a display panel.

18. The touch sense panel of claim 17, wherein:

the touch sense panel is part of a cell phone, PDA, a television, a portable multimedia player, an e-book, or a navigation device.

19. A device including a touch sense panel, comprising:

a touch sense panel including a plurality of rows and columns, each row including a string of individual electrodes, and each column including a string of individual electrodes, wherein each row is electrically connected to at least one other row to form a common electrode, and each column is electrically connected to at least one other column to form a common electrode;

a plurality of connection lines, wherein each connection line is connected to a respective common electrode, so that the number of common electrodes is at least two times the number of lines in the plurality of connection lines.

20. The device of claim 19, further comprising:

a display panel over which the touch sense panel is overlaid.