TOUCH LOCATION DETECTING PANEL HAVING A SIMPLE LAYER STRUCTURE

• US 20110273391A1
• Filed: 07/07/2011
• Published: 11/10/2011
• Est. Priority Date: 03/05/2007
• Status: Abandoned Application

• Current Assignee: Melfas Incorporated
• Original Assignee: Melfas Incorporated
• Inventors: BAE, Sang-ho
• Application Number:
  US13/177,607
• Publication Number:
  US 20110273391A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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
• 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 location detecting panel and, more particularly, a touch location detecting panel having a plurality of sensing areas arranged two-dimensionally. The touch location detecting panel has on a surface at one side of a single film, a plurality of sensing areas arranged two-dimensionally. Each of the sensing areas includes a plurality of partitioned areas electrically isolated from each other, and the partitioned areas are respectively connected to separate channels of circuit for detecting a user'"'"'s touch on each of the partitioned areas. Accordingly, durability and productivity of the touch location detecting panel can be improved by simplifying the panel structure.

Claims

1-20. -20. (canceled)

21. A touch location detecting panel comprising:

touch detecting area including a plurality of sensing areas arranged two-dimensionally on a single substrate; and

wiring area disposed around the touch detecting area,

wherein each of the plurality of sensing areas includes;

a first partitioned electrode for detecting a first axis location of a touch, the touch being applied to the touch detecting area; and

a second partitioned electrode for detecting a second axis location of the touch, the second partitioned electrode being electrically separated from the first partitioned electrode,

wherein first partitioned electrodes arrayed at the same position on the first axis are electrically connected to one another, and

wherein second partitioned electrodes arrayed at the same position on the second axis are connected to one another in the touch detecting area to form a sensing bar extended along the first axis direction.

22. The touch location detecting panel of claim 21, wherein the single substrate includes a transparent window of a display device.

23. The touch location detecting panel of claim 21, wherein the single substrate is formed of a transparent material.

24. The touch location detecting panel of claim 21, wherein the first partitioned electrode and the second partitioned electrode independently detect the touch by using a touch detecting circuit.

25. The touch location detecting panel of claim 21, wherein the first partitioned electrode and the second partitioned electrode are substantially identical in area.

26. The touch location detecting panel of claim 21, wherein the first axis and the second axis intersect perpendicularly to each other.

27. The touch location detecting panel of claim 21, wherein an area of each of the first and the second partitioned electrode is smaller than a minimum touch area of a touching object.

28. The touch location detecting panel of claim 21, wherein the sensing areas are connected to a touch detecting circuit which detects the touch based on change in electric capacitance caused by the touch.

34. The touchscreen panel of claim 24 wherein the touch detecting circuit detects a touch location by computing an average of electric capacitance caused by the touch.

37. The touchscreen panel of claim 28, wherein the touch detecting circuit detects a touch location by computing an average of electric capacitance caused by the touch.

29. A touch location detecting panel comprising:

touch detecting area including a plurality of first partitioned electrodes and a plurality of second partitioned electrodes, the first and the second partitioned electrodes being arranged two-dimensionally along a first axis and a second axis on a single substrate; and

wiring area including wiring arranged around the touch detecting area,

wherein the first partitioned electrodes and the second partitioned electrodes are electrically separated from one another,

wherein the first partitioned electrodes arrayed at the same position on the first axis are connected by the wiring of the wiring area,

wherein the second partitioned electrodes arrayed at the same position on the second axis are connected to extend along the first axis in the touch detecting area.

30. The touchscreen panel of claim 29, wherein the first partitioned electrodes and the second partitioned electrodes are formed of a transparent conductive material.

31. The touchscreen panel of claim 29, further comprising a protective layer formed on or over one side surface of the single substrate.

32. The touchscreen panel of claim 29, further comprising a conductive shielding layer formed on or over other side surface of the single substrate for electrical shielding.

33. The touchscreen panel of claim 29, wherein the first partitioned electrodes and the second partitioned electrodes are connected to separate sensing channels of a touch detecting circuit, respectively.

35. The touchscreen panel of claim 33, wherein the touch detecting circuit detects the location of the touch by computing an average of electric capacitances caused by the touch in the first partitioned electrodes or the second partitioned electrodes adjacent to the touch.

36. The touchscreen panel of claim 29, wherein the wiring is disposed on a circuit substrate which is distinct from the single substrate and the circuit substrate is attached to the single substrate.