TOUCH SCREEN SENSOR SUBSTRATE, TOUCH SCREEN SENSOR, AND PANEL COMPRISING SAME

• US 20140118641A1
• Filed: 06/08/2012
• Published: 05/01/2014
• Est. Priority Date: 06/10/2011
• Status: Active Grant

• Current Assignee: Miraenanotech Co., Ltd.
• Original Assignee: Miraenanotech Co., Ltd.
• Inventors: Ryu, Sung Jin, Choi, Hyung Bae, Park, Ki Won, Lee, Ung Sang, Jang, Kyung Hyun
• Granted Patent: US 9,507,389 B2
• Time in Patent Office: Days
• US Class Current: 349/12
• CPC Class Codes: G06F 1/1692 the I/O peripheral being a secondary touch screen used as control interface, e.g. virtual buttons or sliders
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

The present invention relates to a touch screen sensor substrate, to a touch screen sensor, and to a touch screen panel comprising same. The touch screen sensor substrate according to the present invention comprises: a plurality of sensing units formed of electrodes connected into a pattern of a predetermined direction at one surface of a base; and a connection unit which is formed of electrodes connected into a pattern of a direction which is the same as or similar to the direction of the pattern of the sensing units, and which connects the sensing units.

Claims

1. A substrate for a touch screen sensor, comprising:

a plurality of sensing units formed by electrodes which are connected to each other in a pattern having a predetermined direction on one side of a base; and

sensing connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the pattern and connecting the sensing units.

2. The substrate for a touch screen sensor of claim 1, further comprising:

a plurality of dummy units which are adjacent to the sensing units and formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the pattern to reduce visibility of the sensing units.

3. The substrate for a touch screen sensor of claim 2, further comprising:

dummy connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the pattern and connecting the dummy units.

4. The substrate for a touch screen sensor of claim 1, wherein the pattern having the predetermined direction is formed in a continuous pattern, and a part of the pattern is disconnected on a boundary between the sensing unit and the dummy unit.

5. The substrate for a touch screen sensor of claim 4, wherein the part of the pattern which is disconnected means that an edge of the pattern is formed to be opened on a boundary between the sensing unit and the dummy unit.

6. The substrate for a touch screen sensor of claim 5, wherein the edge which is formed to be opened means that the pattern is alternately formed to be long and short at the edge.

7. The substrate for a touch screen sensor of claim 1, wherein the pattern is a lattice-shaped pattern in which lines formed in the predetermined direction cross each other.

8. The substrate for a touch screen sensor of claim 7, wherein the lattice-shaped lines crossing each other in the pattern have the same or similar line width and pitch defining an interval between the lines or have a line width or pitch having predetermined similarity.

9. The substrate for a touch screen sensor of claim 8, wherein the line widths or the pitches of the lines of the lattice shape are determined according to a fill factor defining an area of the lines occupied in the substrate.

10. The substrate for a touch screen sensor of claim 9, wherein the fill factor of the lines is formed to be 10% or less on the substrate.

11. The substrate for a touch screen sensor of claim 7, wherein the lattice-shaped lines crossing each other are tilted according to a predetermined angle.

12. The substrate for a touch screen sensor of claim 11, wherein the predetermined angle is an angle determined in order to prevent a moire phenomenon from being generated due to a mutual interference between the pattern having the predetermined direction and a different pattern from the pattern.

13. The substrate for a touch screen sensor of claim 2, wherein the dummy unit is formed to be insulated from the sensing unit.

14. The substrate for a touch screen sensor of claim 3, further comprising:

a resin layer laminated on the base and including a patterned intaglio on one side; and

an electrode layer formed by filling a conductive material in the intaglio,

wherein the sensing unit, the dummy unit, and the sensing and dummy connecting units are formed on the electrode layer.

15. The substrate for a touch screen sensor of claim 14, wherein the filled conductive material includes copper (Cu), silver (Ag), aluminum (Al), nickel (Ni), chromium (Cr), and nickel-phosphorous (Ni—

P).

16. The substrate for a touch screen sensor of claim 14, further comprising:

a black layer configured to reduce visibility of the sensing unit, the dummy unit, and the sensing and dummy connecting units which are formed on the electrode layer,

wherein the black layer is laminated above the electrode layer of the intaglio.

17. A touch screen sensor, comprising:

a first sensor including a plurality of first sensing units formed by electrodes which are connected to each other in a first pattern having a first direction on one side of a base and first sensing connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the first direction and connecting the first sensing units; and

a second sensor including a plurality of second sensing units formed by electrodes which are connected to each other in a second pattern having a second direction on the other side of the base or one side of another base and second sensing connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the second direction and connecting the second sensing units.

18. The touch screen sensor of claim 17, wherein the first sensor includes a plurality of first dummy units which are adjacent to the first sensing units and formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the first direction to reduce visibility of the sensing units, and the first dummy unit is formed at a position of one side of the base corresponding to a position of the second sensing unit.

19. The touch screen sensor of claim 18, wherein the first sensor includes first dummy connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the first pattern and connecting the first dummy units.

20. The touch screen sensor of claim 17, wherein the second sensor includes a plurality of second dummy units which are adjacent to the second sensing units and formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the second direction to reduce visibility of the sensing units, and the second dummy unit is formed at a position of the other side of the base corresponding to a position of the first sensing unit.

21. The touch screen sensor of claim 20, wherein the second sensor includes second dummy connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the second pattern and connecting the second dummy units.

22. The touch screen sensor of claim 17, wherein the first or second pattern having the predetermined direction is formed in a continuous pattern, and a part of the pattern is disconnected on a boundary between the sensing unit and the dummy unit.

23. The touch screen sensor of claim 22, wherein the part of the first or second pattern which is disconnected means that an edge of the first or second pattern is formed to be opened on a boundary between the sensing unit and the dummy unit.

24. The touch screen sensor of claim 23, wherein the edge which is formed to be opened means that the first or second pattern is alternately formed to be long and short at the edge.

25. The touch screen sensor of claim 17, wherein the first or second pattern is a lattice-shaped pattern in which lines formed in the predetermined direction cross each other.

26. The touch screen sensor of claim 25, wherein the lattice-shaped lines crossing each other in the first or second pattern have the same or similar line width and pitch defining an interval between the lines or have a line width or pitch having predetermined similarity.

27. The touch screen sensor of claim 26, wherein the line widths or the pitches of the lattice-shaped lines are determined according to a fill factor defining an area of the lines occupied in the substrate.

28. The touch screen sensor of claim 27, wherein the fill factor of the lines is formed to be 10% or less on the substrate.

29. The touch screen sensor of claim 25, wherein the lattice-shaped lines crossing each other are tilted according to a predetermined angle.

30. The touch screen sensor of claim 29, wherein the predetermined angle is an angle determined in order to prevent a moire phenomenon from being generated due to a mutual interference between the first pattern and the second pattern.

31. The touch screen sensor of claim 19, wherein the first or second dummy unit is formed to be insulated from the first or second sensing unit.

32. The touch screen sensor of claim 19, wherein the first or second sensor includes a resin layer laminated on the base and including a patterned intaglio on one side;

and an electrode layer formed by filling a conductive material in the intaglio, and the sensing unit, the dummy unit, and the connecting units are formed on the electrode layer.

33. The touch screen sensor of claim 32, wherein the filled conductive material includes copper (Cu), silver (Ag), aluminum (Al), nickel (Ni), chromium (Cr), and nickel-phosphorous (Ni—

P).

34. The touch screen sensor of claim 32, wherein the first or second sensor further includes a black layer configured to reduce visibility of the sensing unit, the dummy unit, and the connecting units which are formed on the electrode layer, and the black layer is laminated above the electrode layer of the intaglio.

43. The touch screen panel of claim 17, wherein the first or second pattern is a lattice-shaped pattern in which lines formed in the predetermined direction cross each other.

47. The touch screen panel of claim 43, wherein the lattice-shaped lines crossing each other are tilted according to a predetermined angle.

48. The touch screen panel of claim 47, wherein the predetermined angle is an angle determined in order to prevent a moire phenomenon from being generated due to a mutual interference between the first pattern and the second pattern.

35. A touch screen panel, comprising:

an image information display unit configured to display image information by using a plurality of pixels;

a first sensor including a plurality of first sensing units formed by electrodes which are connected to each other in a first pattern having a first predetermined direction on one side of a base which is positioned on the upper surface of the image information display unit and first sensing connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the first direction and connecting the first sensing units; and

a second sensor including a plurality of second sensing units formed by electrodes which are connected to each other in a second pattern having a second predetermined direction on the other side of the base and second sensing connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the second direction and connecting the second sensing units.

36. The touch screen panel of claim 35, wherein the first sensor includes a plurality of first dummy units which are adjacent to the first sensing units and formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the first direction to reduce visibility of the sensing units, and

the first dummy unit is formed at a position of one side of the base corresponding to a position of the second sensing unit.

37. The touch screen panel of claim 36, wherein the first sensor includes first dummy connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the first pattern and connecting the first dummy units.

38. The touch screen panel of claim 35, wherein the second sensor includes a plurality of second dummy units which are adjacent to the second sensing units and formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the second direction to reduce visibility of the sensing units, and the second dummy unit is formed at a position of the other side of the base corresponding to a position of the first sensing unit.

39. The touch screen panel of claim 38, wherein the second sensor includes second dummy connecting units formed by electrodes which are connected to each other in a pattern having the same or a similar direction as or to the direction of the second pattern and connecting the second dummy units.

40. The touch screen panel of claim 35, wherein the first or second pattern having the predetermined direction is formed in a continuous pattern, and a part of the pattern is disconnected on a boundary between the sensing unit and the dummy unit.

41. The touch screen panel of claim 40, wherein the part of the first or second pattern which is disconnected means that an edge of the first or second pattern is formed to be opened on a boundary between the sensing unit and the dummy unit.

42. The touch screen panel of claim 41, wherein the edge which is formed to be opened means that the first or second pattern is alternately formed to be long and short at the edge.

44. The touch screen panel of claim 35, wherein the lattice-shaped lines crossing each other in the first or second pattern have the same or similar line width and pitch defining an interval between the lines or have a line width or pitch having predetermined similarity.

45. The touch screen panel of claim 44, wherein the line widths or the pitches of the lattice-shaped lines are determined according to a fill factor defining an area of the lines occupied in the substrate.

46. The touch screen panel of claim 45, wherein the fill factor of the lines is formed to be 10% or less on the substrate.

49. The touch screen panel of claim 36, wherein the first or second dummy unit is formed to be insulated from the first or second sensing unit.

50. The touch screen panel of claim 36, wherein the first or second sensor includes a resin layer laminated on the base and including a patterned intaglio on one side;

and an electrode layer formed by filling a conductive material in the intaglio, and the sensing unit, the dummy unit, and the connecting units are formed on the electrode layer.

51. The touch screen panel of claim 50, wherein the filled conductive material includes copper (Cu), silver (Ag), aluminum (Al), nickel (Ni), chromium (Cr), and nickel-phosphorous (Ni—

P).

52. The touch screen panel of claim 50, wherein the first or second sensor further includes a black layer configured to reduce visibility of the sensing unit, the dummy unit, and the connecting units which are formed on the electrode layer, and the black layer is laminated above the electrode layer of the intaglio.