TOUCH SENSING TYPE LIQUID CRYSTAL DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME

• US 20110228188A1
• Filed: 03/16/2011
• Published: 09/22/2011
• Est. Priority Date: 03/19/2010
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Kim, Jin-Wuk, Kim, Sung-Hee, Park, Joong-Pill
• Granted Patent: US 9,201,259 B2
• Time in Patent Office: Days
• US Class Current: 349/43
• CPC Class Codes: B32B 2457/202 LCD, i.e. liquid crystal displays
• CPC Class Codes: B32B 2457/208 Touch screens
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels

Abstract

A touch sensing type liquid crystal display device includes an array substrate including a first substrate, a common electrode, a pixel electrode, and a touch sensing unit; a color filter substrate including a second substrate and facing the array substrate; an anti-static layer on an outer side of the second substrate and including a conductive polymer, a UV-setting binder and transparent silica and having a sheet resistance of several tens of Mega ohms per square (Ω/sq) to several Giga ohms per square (Ω/sq); and a liquid crystal layer between the first substrate and an inner side of the second substrate.

Claims

1. A touch sensing type liquid crystal display device, comprising:

an array substrate including a first substrate, a common electrode, a pixel electrode, and a touch sensing unit;

a color filter substrate including a second substrate and facing the array substrate;

an anti-static layer on an outer side of the second substrate and including a conductive polymer, a UV-setting binder and transparent silica and having a sheet resistance of several tens of Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq); and

a liquid crystal layer between the first substrate and an inner side of the second substrate.

2. The device according to claim 1, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride.

3. The device according to claim 1, wherein the UV-setting binder include one of acrylate, urethane acrylate oligomer, and acrylate monomer.

4. The device according to claim 1, wherein the transparent silica has a hydrophilic property.

5. The device according to claim 1, wherein a weight ratio of the conductive polymer to the UV-setting binder is about 0.5:

99.5 to about 10;

90, and a weight ratio of the transparent silica to the UV-setting binder is about 10;

90 to about 20;

80.

6. The device according to claim 1, wherein the anti-static layer further includes a multi-functional monomer of trimethylolpropane triacrylate (TMPTA).

7. The device according to claim 6, wherein a weight % of the multi-functional monomer is equal to or smaller than 5% with respect to the UV-setting binder.

8. The device according to claim 1, wherein the anti-static layer has a thickness of about 500 to about 5000 Å

.

9. The device according to claim 1, wherein the anti-static layer has a hardness being equal to or greater than 6H.

10. The device according to claim 1, wherein the touch sensing unit includes:

an X direction sensing line;

a Y direction sensing line;

an X direction sensing circuit at one end of the X direction sensing line; and

a Y direction sensing circuit at one end of the Y direction sensing line,

wherein a change of capacitance by a touch is detected by the X direction sensing circuit and the Y direction sensing circuit through the X direction sensing line and the Y direction sensing line, respectively.

11. The device according to claim 10, wherein a plurality of touch blocks are defined on the first substrate, and each touch block includes first to third regions, each of which includes at least one pixel region, and wherein the X direction sensing line is disposed at the first and third regions, and the Y direction sensing line is disposed at the second region.

12. The device according to claim 11, wherein the X direction sensing line in the first region is electrically connected to the X direction sensing line in the third region.

13. The device according to claim 12, wherein the touch sensing unit further includes a connection line in the second region for electrical connection of the X direction sensing line in the first region and the X direction sensing line in the third region.

14. The device according to claim 12, wherein the common electrode has an island shape in each of the first to third regions, and the X and Y direction sensing lines contacts the common electrode.

15. The device according to claim 1, wherein the array substrate further includes:

gate lines on the first substrate;

an interlayer insulating layer on the gate lines;

data lines on the interlayer insulating layer and crossing each other to define a plurality of pixel regions, wherein a plurality of pixel regions form each of first to third regions;

a thin film transistor in each pixel region and connected to the gate and data lines;

a first passivation layer on the data lines and the thin film transistor, wherein the common electrode is disposed on the first passivation layer and has an island shape in each of the first to third regions; and

a second passivation layer over the common electrode, wherein the first and second passivation layers have a drain contact hole exposing a portion of the thin film transistor,

wherein the pixel electrode is disposed on the second passivation layer and contacts the portion of the thin film transistor through the drain contact hole

16. The device according to claim 15, wherein the pixel electrode has at least one opening to generate a fringe field with the common electrode.

17. The device according to claim 15, wherein the color filter substrate further includes:

a black matrix corresponding to boundaries of each pixel region; and

a color filter layer corresponding to the each pixel region.

18. The device according to claim 1, wherein the touch sensing unit includes:

a connection line in the second region under the interlayer insulating layer;

an X direction sensing line disposed on the common electrode in the first and third regions and overlapping the gate line;

a Y direction sensing line disposed on the common electrode in the second region and overlapping the data line; and

first and second connection patterns on the second passivation layer,

wherein the second passivation layer has a first contact hole exposing an end of the X direction sensing line in the first region and a second contact hole exposing an end of the X direction sensing line in the third region, wherein the first and second passivation layers have a drain contact hole exposing a portion of the thin film transistor, and the first and second passivation layers and the interlayer insulating layer have third and fourth contact holes respectively exposing both ends of the connection line,

wherein one end of the first connection pattern contacts the X direction sensing line in the first region through the first contact hole, and the other end of the first connection pattern contacts one end of the connection line through the third contact hole, and

wherein one end of the second connection pattern contacts the X direction sensing line in the third region through the second contact hole, and the other end of the second connection pattern contacts the other end of the connection line through the fourth contact hole.

19. A method of fabricating a touch sensing type liquid crystal display device, comprising:

forming a gate line, a data line, a thin film transistor, a common electrode, a pixel electrode and a touch sensing unit on a first substrate;

forming an anti-static layer on an outer side of a second substrate, the anti-static layer including a conductive polymer, a UV-setting binder and transparent silica and having a sheet resistance of several tens of Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq);

irradiating a UV light onto the anti-static layer such that the anti-static layer has a hardness being equal to or greater than 6H; and

attaching the first and second substrates with a liquid crystal layer interposed between the first and second substrates.

20. The method according to claim 19, wherein the step of forming the anti-static layer is performed using a spin coating apparatus or a slit coating apparatus under a room temperature, and wherein the anti-static layer has a thickness of about 500 to about 5000 Å

.

21. The method according to claim 19, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride, and the UV-setting binder include one of acrylate, urethane acrylate oligomer, and acrylate monomer, and wherein the transparent silica has a hydrophilic property.

22. The method according to claim 19, wherein the step of forming the anti-static layer includes:

forming a polymer layer on the outer side of the second substrate by coating a liquid phase polymer mixture, the liquid phase polymer mixture including a conductive polymer, an ultraviolet (UV)-setting binder and transparent silica with a solvent; and

removing the solvent by heating the polymer layer.

23. The method according to claim 19, further comprising:

cleaning an outer surface of the first substrate and an outer surface of the anti-static layer; and

forming first and second polarizing plates respectively on the outer surface of the first substrate and the outer surface of the anti-static layer.

24. The method according to claim 19, wherein the step of forming the touch sensing unit includes:

forming a connection line at the same layer as the gate line;

forming an X direction sensing line and a Y direction sensing line on the common electrode, the X direction sensing line and the Y direction sensing line respectively overlapping the gate line and the data line, wherein the X direction sensing line is disposed in first and second regions, and the Y direction sensing line is disposed in a third region between the first and second regions; and

forming first and second connection patterns at the same layer as the pixel electrode,

wherein one end of the first connection pattern is electrically connected to the X direction sensing line in the first region, and the other end of the first connection pattern is electrically connected to the connection line, and wherein one end of the second connection pattern is electrically connected to the X direction sensing line in the second region, and the other end of the second connection pattern is electrically connected to the connection line.

25. A method of fabricating a touch sensing type liquid crystal display device, comprising:

forming a gate line, a data line, a thin film transistor, a common electrode, a pixel electrode and a touch sensing unit on a first substrate;

attaching a second substrate to the first substrate to form a liquid crystal panel, wherein the liquid crystal panel has a first thickness;

etching an outer side of each of the first and second substrates such that the liquid crystal panel has a second thickness smaller than the first thickness; and

forming an anti-static layer on the outer side of the second substrate, the anti-static layer including a conductive polymer, a UV-setting binder and transparent silica and having a sheet resistance of several tens Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq).

26. The method according to claim 25, wherein the step of forming the anti-static layer is performed using a spin coating apparatus or a slit coating apparatus under a room temperature, and wherein the anti-static layer has a thickness of about 500 to about 5000 Å

.

27. The method according to claim 25, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride, and the UV-setting binder include one of acrylate, urethane acrylate oligomer, and acrylate monomer, and wherein the transparent silica has a hydrophilic property.

28. The method according to claim 25, wherein the step of forming the anti-static layer includes:

forming a polymer layer on the outer side of the second substrate by coating a liquid phase polymer mixture, the liquid phase polymer mixture including a conductive polymer, an ultraviolet (UV)-setting binder and transparent silica with a solvent; and

removing the solvent by heating the polymer layer.

29. The method according to claim 25, further comprising:

cleaning an outer surface of the first substrate and an outer surface of the anti-static layer; and

forming first and second polarizing plates respectively on the outer surface of the first substrate and the outer surface of the anti-static layer.

30. The method according to claim 25, wherein the step of forming the touch sensing unit includes:

forming a connection line at the same layer as the gate line;

forming an X direction sensing line and a Y direction sensing line on the common electrode, the X direction sensing line and the Y direction sensing line respectively overlapping the gate line and the data line, wherein the X direction sensing line is disposed in first and second regions, and the Y direction sensing line is disposed in a third region between the first and second regions; and

forming first and second connection patterns at the same layer as the pixel electrode,

wherein one end of the first connection pattern is electrically connected to the X direction sensing line in the first region, and the other end of the first connection pattern is electrically connected to the connection line, and wherein one end of the second connection pattern is electrically connected to the X direction sensing line in the second region, and the other end of the second connection pattern is electrically connected to the connection line.

31. A touch sensing type liquid crystal display device, comprising:

an array substrate including a first substrate, a common electrode, a pixel electrode, and a touch sensing unit;

a color filter substrate including a second substrate and facing the array substrate;

an anti-static layer on an outer side of the second substrate and including one of a conductive polymer or a conductive inorganic material and a thermo-setting binder and having a sheet resistance of several tens Mega ohms per square (a/sq) to several hundreds Mega ohms per square (Ω

/sq); and

a liquid crystal layer between the first substrate and an inner side of the second substrate.

32. The device according to claim 31, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride.

33. The device according to claim 31, wherein the conductive inorganic material includes one of indium-tin-oxide (ITO), indium-zinc-oxide (IZO) and tin oxide (TiO₂).

34. The device according to claim 31, wherein the thermo-setting binder includes one of tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS) and is cured under a temperature below 100 □

.

35. The device according to claim 31, wherein a weight ratio of the one of the conductive polymer and the conductive inorganic material to the thermo-setting binder is about 0.5:

99.5 to about 10;

90.

36. The device according to claim 31, wherein the anti-static layer has a thickness of about 500 to about 5000 Å

.

37. The device according to claim 31, wherein the anti-static layer has a hardness of 7H to 9H.

38. The device according to claim 31, wherein the touch sensing unit includes:

an X direction sensing line;

a Y direction sensing line;

an X direction sensing circuit at one end of the X direction sensing line; and

a Y direction sensing circuit at one end of the Y direction sensing line,

wherein a change of capacitance by a touch is detected by the X direction sensing circuit and the Y direction sensing circuit through the X direction sensing line and the Y direction sensing line, respectively.

39. The device according to claim 38, wherein a plurality of touch blocks are defined on the first substrate, and each touch block includes first to third regions, each of which includes at least one pixel region, and wherein the X direction sensing line is disposed at the first and third regions, and the Y direction sensing line is disposed at the second region.

40. The device according to claim 39, wherein the X direction sensing line in the first region is electrically connected to the X direction sensing line in the third region.

41. The device according to claim 40, wherein the touch sensing unit further includes a connection line in the second region for electrical connection of the X direction sensing line in the first region and the X direction sensing line in the third region.

42. The device according to claim 40, wherein the common electrode has an island shape in each of the first to third regions, and the X and Y direction sensing lines contacts the common electrode.

43. The device according to claim 31, wherein the array substrate further includes:

gate lines on the first substrate;

an interlayer insulating layer on the gate lines;

data lines on the interlayer insulating layer and crossing each other to define a plurality of pixel regions, wherein a plurality of pixel regions form each of first to third regions;

a thin film transistor in each pixel region and connected to the gate and data lines;

a first passivation layer on the data lines and the thin film transistor, wherein the common electrode is disposed on the first passivation layer and has an island shape in each of the first to third regions; and

a second passivation layer over the common electrode, wherein the first and second passivation layers have a drain contact hole exposing a portion of the thin film transistor,

wherein the pixel electrode is disposed on the second passivation layer and contacts the portion of the thin film transistor through the drain contact hole

44. The device according to claim 43, wherein the pixel electrode has at least one opening to generate a fringe field with the common electrode.

45. The device according to claim 43, wherein the color filter substrate further includes:

a black matrix corresponding to boundaries of each pixel region; and

a color filter layer corresponding to the each pixel region.

46. The device according to claim 31, wherein the touch sensing unit includes:

a connection line in the second region under the interlayer insulating layer;

an X direction sensing line disposed on the common electrode in the first and third regions and overlapping the gate line;

a Y direction sensing line disposed on the common electrode in the second region and overlapping the data line; and

first and second connection patterns on the second passivation layer,

wherein the second passivation layer has a first contact hole exposing an end of the X direction sensing line in the first region and a second contact hole exposing an end of the X direction sensing line in the third region, wherein the first and second passivation layers have a drain contact hole exposing a portion of the thin film transistor, and the first and second passivation layers and the interlayer insulating layer have third and fourth contact holes respectively exposing both ends of the connection line,

wherein one end of the first connection pattern contacts the X direction sensing line in the first region through the first contact hole, and the other end of the first connection pattern contacts one end of the connection line through the third contact hole, and

wherein one end of the second connection pattern contacts the X direction sensing line in the third region through the second contact hole, and the other end of the second connection pattern contacts the other end of the connection line through the fourth contact hole.

47. A method of fabricating a touch sensing type liquid crystal display device, comprising:

forming a gate line, a data line, a thin film transistor, a common electrode, a pixel electrode and a touch sensing unit on a first substrate;

forming an anti-static material layer on an outer side of a second substrate by coating a liquid phase mixture including one of a conductive polymer or a conductive inorganic material and a thermo-setting binder with a solvent;

curing the anti-static material layer under a temperature below 100 μ

l to remove the solvent and form an anti-static layer on an outer side of a second substrate, the anti-static layer having a sheet resistance of several tens Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq); and

attaching the first and second substrates with a liquid crystal layer interposed between the first and second substrates.

48. The method according to claim 47, wherein the step of forming the anti-static material layer is performed using a spin coating apparatus or a slit coating apparatus under a room temperature, and wherein the anti-static layer has a thickness of about 500 to about 5000 Å

.

49. The method according to claim 47, wherein the anti-static layer has a hardness of 7 to 9H.

50. The method according to claim 47, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride, and the conductive inorganic material includes one of indium-tin-oxide (ITO), indium-zinc-oxide (IZO) and tin oxide (TiO2), and wherein the thermo-setting binder includes one of tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS) and is cured under a temperature below 1000, and the solvent includes one of isovutyl alcohol, isobutyl ketone and methylethyl ketone.

51. The method according to claim 47, wherein a weight ratio of the one of the conductive polymer and the conductive inorganic material to the thermo-setting binder is about 0.5:

99.5 to about 10;

90.

52. The method according to claim 47, further comprising:

cleaning an outer surface of the first substrate and an outer surface of the anti-static layer; and

forming first and second polarizing plates respectively on the outer surface of the first substrate and the outer surface of the anti-static layer.

53. The method according to claim 47, wherein the step of forming the touch sensing unit includes:

forming a connection line at the same layer as the gate line;

forming an X direction sensing line and a Y direction sensing line on the common electrode, the X direction sensing line and the Y direction sensing line respectively overlapping the gate line and the data line, wherein the X direction sensing line is disposed in first and second regions, and the Y direction sensing line is disposed in a third region between the first and second regions; and

forming first and second connection patterns at the same layer as the pixel electrode,

wherein one end of the first connection pattern is electrically connected to the X direction sensing line in the first region, and the other end of the first connection pattern is electrically connected to the connection line, and wherein one end of the second connection pattern is electrically connected to the X direction sensing line in the second region, and the other end of the second connection pattern is electrically connected to the connection line.

54. A method of fabricating a touch sensing type liquid crystal display device, comprising:

forming a gate line, a data line, a thin film transistor, a common electrode, a pixel electrode and a touch sensing unit on a first substrate;

attaching a second substrate to the first substrate to form a liquid crystal panel, wherein the liquid crystal panel has a first thickness;

etching an outer side of each of the first and second substrates such that the liquid crystal panel has a second thickness smaller than the first thickness;

forming an anti-static material layer on an outer side of the second substrate by coating a liquid phase mixture including one of a conductive polymer or a conductive inorganic material and a thermo-setting binder with a solvent; and

curing the anti-static material layer under a temperature below 100□

to remove the solvent and form an anti-static layer on an outer side of a second substrate, the anti-static layer having a sheet resistance of several tens Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq).

55. The method according to claim 54, wherein the step of forming the anti-static material layer is performed using a spin coating apparatus or a slit coating apparatus under a room temperature, and wherein the anti-static layer has a thickness of about 500 to about 5000 Å

.

56. The method according to claim 54, wherein the anti-static layer has a hardness of 7 to 9H.

57. The method according to claim 54, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride, and the conductive inorganic material includes one of indium-tin-oxide (ITO), indium-zinc-oxide (IZO) and tin oxide (TiO2), and wherein the thermo-setting binder includes one of tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS) and is cured under a temperature below 100□

, and the solvent includes one of isobutyl alcohol, isobutyl ketone and methylethyl ketone.

58. The method according to claim 54, wherein a weight ratio of the one of the conductive polymer and the conductive inorganic material to the thermo-setting binder is about 0.5:

99.5 to about 10;

90.

59. The method according to claim 54, further comprising:

cleaning an outer surface of the first substrate and an outer surface of the anti-static layer; and

forming first and second polarizing plates respectively on the outer surface of the first substrate and the outer surface of the anti-static layer.

60. The method according to claim 54, wherein the step of forming the touch sensing unit includes:

forming a connection line at the same layer as the gate line;

forming an X direction sensing line and a Y direction sensing line on the common electrode, the X direction sensing line and the Y direction sensing line respectively overlapping the gate line and the data line, wherein the X direction sensing line is disposed in first and second regions, and the Y direction sensing line is disposed in a third region between the first and second regions; and

forming first and second connection patterns at the same layer as the pixel electrode,

wherein one end of the first connection pattern is electrically connected to the X direction sensing line in the first region, and the other end of the first connection pattern is electrically connected to the connection line, and wherein one end of the second connection pattern is electrically connected to the X direction sensing line in the second region, and the other end of the second connection pattern is electrically connected to the connection line.

61. A touch sensing type liquid crystal display device, comprising:

an array substrate including a first substrate, a common electrode, a pixel electrode, and a touch sensing unit;

a color filter substrate including a second substrate and facing the array substrate;

an anti-static layer on an outer side of the second substrate and including a conductive polymer, one of a UV-setting binder and a thermo-setting binder, and a stabilizer and having a sheet resistance of several tens Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq); and

a liquid crystal layer between the first substrate and an inner side of the second substrate.

62. The device according to claim 61, wherein the conductive polymer includes one of polyaniline, poly(3,4-ethylenedioxythiophene) (PEDOT), polyacetylene, polypyrrole, polythiophene, and polysulfurnitride, and the stabilizer includes one of 2,5-dihydro-1H-imidazole, 3,4-dihydroxyfuran-2(5H)-one, and 3,4,5-trihydroxybenzoic acid.

63. The device according to claim 61, wherein the UV-setting binder include one of acrylate, urethane acrylate oligomer, and acrylate monomer.

64. The device according to claim 61, wherein the thermo-setting binder includes one of tetraethoxysilane (TEOS) and tetramethoxysilane (TMOS) and is cured under a temperature below 100 □

.

65. The device according to claim 61, wherein a weight ratio of each of the conductive polymer and the stabilizer to one of the UV-setting binder and the thermo-setting binder is about 0.5:

99.5 to about 10;

90.

66. The device according to claim 61, wherein the anti-static layer has a thickness of 500 to 5000 Å

.

67. The device according to claim 61, wherein the anti-static layer has a hardness of 7 to 9H.

68. The device according to claim 61, wherein the touch sensing unit includes:

an X direction sensing line;

a Y direction sensing line;

an X direction sensing circuit at one end of the X direction sensing line; and

a Y direction sensing circuit at one end of the Y direction sensing line,

wherein a change of capacitance by a touch is detected by the X direction sensing circuit and the Y direction sensing circuit through the X direction sensing line and the Y direction sensing line, respectively.

69. The device according to claim 68, wherein a plurality of touch blocks are defined on the first substrate, and each touch block includes first to third regions, each of which includes at least one pixel region, and wherein the X direction sensing line is disposed at the first and third regions, and the Y direction sensing line is disposed at the second region.

70. The device according to claim 69, wherein the X direction sensing line in the first region is electrically connected to the X direction sensing line in the third region.

71. The device according to claim 70, wherein the touch sensing unit further includes a connection line in the second region for electrical connection of the X direction sensing line in the first region and the X direction sensing line in the third region.

72. The device according to claim 70, wherein the common electrode has an island shape in each of the first to third regions, and the X and Y direction sensing lines contacts the common electrode.

73. The device according to claim 61, wherein the array substrate further includes:

gate lines on the first substrate;

an interlayer insulating layer on the gate lines;

data lines on the interlayer insulating layer and crossing each other to define a plurality of pixel regions, wherein a plurality of pixel regions form each of first to third regions;

a thin film transistor in each pixel region and connected to the gate and data lines;

a first passivation layer on the data lines and the thin film transistor,

wherein the common electrode is disposed on the first passivation layer and has an island shape in each of the first to third regions; and

a second passivation layer over the common electrode, wherein the first and second passivation layers have a drain contact hole exposing a portion of the thin film transistor,

wherein the pixel electrode is disposed on the second passivation layer and contacts the portion of the thin film transistor through the drain contact hole

74. The device according to claim 73, wherein the pixel electrode has at least one opening to generate a fringe field with the common electrode.

75. The device according to claim 73, wherein the color filter substrate further includes:

a black matrix corresponding to boundaries of each pixel region; and

a color filter layer corresponding to the each pixel region.

76. The device according to claim 61, wherein the touch sensing unit includes:

a connection line in the second region under the interlayer insulating layer;

an X direction sensing line disposed on the common electrode in the first and third regions and overlapping the gate line;

a Y direction sensing line disposed on the common electrode in the second region and overlapping the data line; and

first and second connection patterns on the second passivation layer,

wherein the second passivation layer has a first contact hole exposing an end of the X direction sensing line in the first region and a second contact hole exposing an end of the X direction sensing line in the third region, wherein the first and second passivation layers have a drain contact hole exposing a portion of the thin film transistor, and the first and second passivation layers and the interlayer insulating layer have third and fourth contact holes respectively exposing both ends of the connection line,

wherein one end of the first connection pattern contacts the X direction sensing line in the first region through the first contact hole, and the other end of the first connection pattern contacts one end of the connection line through the third contact hole, and

wherein one end of the second connection pattern contacts the X direction sensing line in the third region through the second contact hole, and the other end of the second connection pattern contacts the other end of the connection line through the fourth contact hole.

77. A method of fabricating a touch sensing type liquid crystal display device, comprising:

forming a gate line, a data line, a thin film transistor, a common electrode, a pixel electrode and a touch sensing unit on a first substrate;

forming an anti-static layer on an outer side of a second substrate, the anti-static layer including a conductive polymer, one of a UV-setting binder and a thermo-setting binder, and a stabilizer and having a sheet resistance of several tens of Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq);

irradiating a UV light onto the anti-static layer such that the anti-static layer has a hardness being equal to or greater than 6H; and

attaching the first and second substrates with a liquid crystal layer interposed between the first and second substrates.

78. A method of fabricating a touch sensing type liquid crystal display device, comprising:

forming a gate line, a data line, a thin film transistor, a common electrode, a pixel electrode and a touch sensing unit on a first substrate;

attaching a second substrate to the first substrate to form a liquid crystal panel, wherein the liquid crystal panel has a first thickness;

etching an outer side of each of the first and second substrates such that the liquid crystal panel has a second thickness smaller than the first thickness; and

forming an anti-static layer on the outer side of the second substrate, the anti-static layer including a conductive polymer, one of a UV-setting binder and a thermo-setting binder, and a stabilizer and having a sheet resistance of several tens of Mega ohms per square (Ω

/sq) to several Giga ohms per square (Ω

/sq).