USRE43701EExpiredUtility

Liquid crystal display and method of fabricating the same having particular data signal transmission lines

87
Assignee: KIM DONG-GYUPriority: Sep 12, 2005Filed: Jan 20, 2011Granted: Oct 2, 2012
Est. expirySep 12, 2025(expired)· nominal 20-yr term from priority
Inventors:Dong-Gyu Kim
G09G 2300/0426G09G 3/3614G02F 1/136286G02F 1/1345G02F 1/133G09G 2300/0452G09G 3/3648
87
PatentIndex Score
3
Cited by
12
References
108
Claims

Abstract

A liquid crystal display includes gate lines, data lines intersecting with the gate lines to define sub-pixels, and a transmission part including transmission lines connected with the data lines to transmit data signals, where at least one pair of the transmission lines are arranged to cross each other, some of the transmission lines cross each other so that a sequence of data signals applied to the data lines can be changed, any of the transmission lines is opened at a crossing point of the transmission lines and the opened portion is connected by a separate conductor, thereby insulating the transmission lines crossing each other from each other, and an additional process for connecting the opened portion is not needed, thereby simplifying a fabrication process for the liquid crystal display.

Claims

exact text as granted — not AI-modified
1. A liquid crystal display comprising:
 a plurality of gate lines formed on a substrate; 
 a plurality of data lines formed on the substrate and intersecting with the gate lines to define a plurality of sub-pixels; and 
 a transmission part including a plurality of transmission lines connected with the data lines to transmit a data signal, at least one pair of the transmission lines being arranged to cross each other. 
 
     
     
       2. The liquid crystal display of  claim 1 , wherein the transmission part comprises a first transmission part including at least one pair of the transmission lines crossing each other and a second transmission part including at least one pair of the transmission lines that do not cross each other. 
     
     
       3. The liquid crystal display of  claim 2 , wherein the sub-pixels comprise two or more sub-pixels constituting a main pixel, and the first transmission part and the second transmission part are alternatively arranged in each main pixel in a gate line direction. 
     
     
       4. The liquid crystal display of  claim 3 , further comprising a passivation layer covering the data lines and the transmission part, and a pixel electrode on the passivation layer corresponding to each sub-pixel. 
     
     
       5. The liquid crystal display of  claim 4 , wherein any of one pair of the transmission lines of the first transmission part is partially opened at a crossing point of the transmission lines, further comprising a first conductor connecting the opened portion on the passivation layer. 
     
     
       6. The liquid crystal display of  claim 5 , wherein the first conductor comprises a same material as that of the pixel electrode. 
     
     
       7. The liquid crystal display of  claim 5 , wherein any of one pair of the transmission lines of the second transmission part is partially opened at not a crossing point of the transmission lines, further comprising a second conductor connecting the opened portion on the passivation layer. 
     
     
       8. The liquid crystal display of  claim 7 , wherein the first conductor has a same resistance value as that of the second conductor. 
     
     
       9. The liquid crystal display of  claim 7 , wherein the first and second conductors comprise a same material as that of the pixel electrode. 
     
     
       10. The liquid crystal display of  claim 3 , further comprising a data driver generating data signals, wherein the data signals are applied to the data lines in a changed sequence by the transmission lines crossing each other. 
     
     
       11. The liquid crystal display of  claim 10 , wherein the main pixel comprises 1 by 4 sub-pixels arranged in the gate line direction. 
     
     
       12. The liquid crystal display of  claim 10 , wherein the main pixel comprises 2 by 2 sub-pixels arranged in the gate line direction and a data line direction. 
     
     
       13. The liquid crystal display of  claim 10 , wherein the main pixel comprises the four sub-pixels expressing red, green, blue and white colors, respectively. 
     
     
       14. A method of fabricating a liquid crystal display, the method comprising:
 forming a plurality of gate lines on a substrate; 
 forming a plurality of data lines crossing the gate lines on the substrate; and 
 forming a plurality of transmission line connected with the data lines, at least one pair of the transmission lines being arranged to cross each other. 
 
     
     
       15. The method of  claim 14 , wherein the transmission lines comprise at least one pair of transmission lines crossing each other and at least one pair of transmission lines that do not cross each other. 
     
     
       16. The method of  claim 14 , wherein the data lines and the transmission lines are substantially simultaneously formed by depositing and patterning a metal film. 
     
     
       17. The method of  claim 16 , further comprising:
 forming an insulating layer on the data lines and the transmission lines; 
 depositing a transparent conductive layer on the insulating layer; and 
 patterning the deposited transparent conductive layer to form a pixel electrode. 
 
     
     
       18. The method of  claim 17 , wherein the metal film is patterned so any of one pair of the transmission lines crossing each other is partially opened at a crossing point of the pair of the transmission lines, and the transparent conductive layer is patterned so the opened portion is connected. 
     
     
       19. The method of  claim 18 , wherein the transparent conductive layer is substantially simultaneously patterned when the pixel electrode is formed. 
     
     
       20. The method of  claim 19 , wherein the metal film is patterned so any of one pair of the transmission lines that do not cross each other is partially opened, and the transparent conductive layer is substantially simultaneously patterned when the pixel electrode is formed to connect the opened portion. 
     
     
       21. A display device comprising:
 a plurality of gate lines disposed on a substrate, wherein the plurality of gate lines extends in a first direction;   a plurality of data lines crossing the plurality of gate lines;   a plurality of main pixels, each main pixel of the plurality of main pixels having 2n sub-pixels, wherein n is an integer greater than 1; and   a transmission part connected with the plurality of data lines, wherein the transmission part transmits a plurality of data signals and includes a first transmission part and a second transmission part,   wherein the first transmission part comprises at least one pair of transmission lines crossing each other and the second transmission part comprises at least one pair of transmission lines which do not cross each other.   
     
     
       22. The display device of claim 21, wherein n is equal to 2. 
     
     
       23. The display device of claim 21, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part, and
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction.   
     
     
       24. The display device of claim 23, wherein a first sub-pixel of the first main pixel has a first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       25. The display device of claim 24, wherein the first sub-pixel of the first main pixel and the first sub-pixel of the second main pixel are respectively disposed at a same positional relationship within the first main pixel and the second main pixel, respectively. 
     
     
       26. The display device of claim 24, wherein each main pixel includes four sub-pixels,
 wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of the first color, a second color, a third color, and a fourth color,   wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       27. The display device of claim 26, wherein each main pixel of the plurality of main pixels comprises four sub-pixels arranged in the first direction. 
     
     
       28. The display device of claim 27, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a first frame. 
     
     
       29. The display device of claim 28, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (+)(−)(+)(−)(−)(+)(−)(+) in a frame which is subsequent to the first frame. 
     
     
       30. The display device of claim 27, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (+)(−)(+)(−)(−)(+)(−)(+) in a first frame. 
     
     
       31. The display device of claim 30, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a frame which is subsequent to the first frame. 
     
     
       32. The display device of claim 30, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other which has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       33. The display device of claim 32, wherein the first conductor comprises at least one of indium zinc oxide and indium tin oxide. 
     
     
       34. The display device of claim 30, further comprising a passivation layer disposed on the first transmission part,
 wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other,   wherein the first transmission line includes a first terminal and a second terminal disposed completely separated from one another on the substrate,   wherein at least two through holes are disposed in the passivation layer corresponding to the first terminal and the second terminal, respectively, and   wherein the first transmission line comprises a first conductor disposed on the passivation layer and electrically connected to the first terminal and the second terminal via the at least two through holes.   
     
     
       35. The display device of claim 34, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       36. The display device of claim 35, wherein a plurality of sub-pixels arranged in a second direction substantially perpendicular to the first direction have a same color. 
     
     
       37. The display device of claim 36, wherein adjacent sub-pixels of the plurality of sub-pixels arranged in the second direction have different polarities from each other. 
     
     
       38. The display device of claim 21, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       39. The display device of claim 38, wherein the plurality of gate lines comprise a multi-layered structure including at least two metal layers having different physical properties. 
     
     
       40. The display device of claim 39, wherein the plurality of data lines comprise a multi-layered structure including at least two metal layers, and wherein at least two layers of the at least two metal layers have different physical properties from each other. 
     
     
       41. The display device of claim 40, wherein the plurality of data lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       42. The display device of claim 21, wherein each main pixel of the plurality of main pixels includes four sub-pixels,
 wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of a first color, a second color, a third color, and a fourth color,   wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       43. The display device of claim 42, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part, and
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction.   
     
     
       44. The display device of claim 43, wherein a first sub-pixel of the first main pixel has the first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       45. The display device of claim 43, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a first frame. 
     
     
       46. The display device of claim 42, wherein each main pixel of the plurality of main pixels comprises four sub-pixels arranged in the first direction. 
     
     
       47. The display device of claim 42, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other which has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       48. The display device of claim 47, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       49. The display device of claim 42, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       50. The display device of claim 21, wherein each main pixel of the plurality of main pixels comprises four sub-pixels arranged in the first direction. 
     
     
       51. The display device of claim 50, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part, and
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction.   
     
     
       52. The display device of claim 51, wherein a first sub-pixel of the first main pixel has a first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       53. The display device of claim 51, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a first frame. 
     
     
       54. The display device of claim 50, wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of a first color, a second color, a third color, and a fourth color,
 wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       55. The display device of claim 50, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other which has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       56. The display device of claim 55, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       57. The display device of claim 50, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       58. The display device of claim 21, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part,
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction, and   wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a first frame.   
     
     
       59. The display device of claim 58, wherein a first sub-pixel of the first main pixel has a first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       60. The display device of claim 58, wherein each main pixel includes four sub-pixels,
 wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of a first color, a second color, a third color, and a fourth color,   wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       61. The display device of claim 58, wherein each main pixel of the plurality of main pixels comprises four sub-pixels arranged in the first direction. 
     
     
       62. The display device of claim 58, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other which has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       63. The display device of claim 62, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       64. The display device of claim 58, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       65. The display device of claim 21, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other which has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       66. The display device of claim 65, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part, and
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction.   
     
     
       67. The display device of claim 66, wherein a first sub-pixel of the first main pixel has a first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       68. The display device of claim 66, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a first frame. 
     
     
       69. The display device of claim 65, wherein each main pixel includes four sub-pixels,
 wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of a first color, a second color, a third color, and a fourth color,   wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       70. The display device of claim 65, wherein each main pixel of the plurality of main pixels comprises four sub-pixels arranged in the first direction. 
     
     
       71. The display device of claim 65, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       72. The display device of claim 65, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       73. The display device of claim 21, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other which has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion, and   wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other.   
     
     
       74. The display device of claim 73, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part, and
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction.   
     
     
       75. The display device of claim 74, wherein a first sub-pixel of the first main pixel has a first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       76. The display device of claim 74, wherein a polarity sequence of sub-pixels in the first main pixel and the second main pixel comprises (−)(+)(−)(+)(+)(−)(+)(−) in a first frame. 
     
     
       77. The display device of claim 73, wherein each main pixel includes four sub-pixels,
 wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of a first color, a second color, a third color, and a fourth color,   wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       78. The display device of claim 73, wherein each main pixel of the plurality of main pixels comprises four sub-pixels arranged in the first direction. 
     
     
       79. The display device of claim 73, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       80. The display device of claim 21, wherein a plurality of sub-pixels arranged in a second direction substantially perpendicular to the first direction have a same color. 
     
     
       81. The display device of claim 80, wherein adjacent sub-pixels of the plurality of sub-pixels arranged in the second direction have different polarities from each other. 
     
     
       82. The display device of claim 81, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       83. The display device of claim 21, wherein the plurality of data lines comprise a multi-layered structure including at least two metal layers, and wherein at least two layers of the at least two metal layers have different physical properties from each other. 
     
     
       84. The display device of claim 83, wherein the plurality of data lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       85. A display device comprising:
 a gate line disposed on a substrate, wherein the gate line extends in a first direction;   a data line which crosses the gate line;   a plurality of main pixels, each main pixel of the plurality of main pixels having four sub-pixels; and   a transmission part connected to the data line to transmit a data signal and including a first transmission part and a second transmission part,   wherein the first transmission part comprises at least one pair of transmission lines crossing each other and the second transmission part comprises at least one pair of transmission lines which do not cross each other, wherein each main pixel of the plurality of main pixels comprises four sub-pixels two dimensionally arranged in a 2 by 2 matrix on a display area.   
     
     
       86. The display device of claim 85, wherein the plurality of main pixels comprises a first main pixel connected to the first transmission part and a second main pixel connected to the second transmission part, and
 wherein the first main pixel and the second main pixel are adjacent and alternately arranged in the first direction.   
     
     
       87. The display device of claim 86, wherein a first sub-pixel of the first main pixel has a first color and a first sub-pixel of the second main pixel has the first color, and
 wherein a polarity of the first sub-pixel of the first main pixel and a polarity of the first sub-pixel of the second main pixel are different from each other.   
     
     
       88. The display device of claim 87, wherein each main pixel includes four sub-pixels,
 wherein each sub-pixel of the four sub-pixels of each main pixel comprises one of the first color, a second color, a third color, and a fourth color,   wherein each sub-pixel of the four sub-pixels of each main pixel has a different color, and   wherein the first color, the second color, the third color and the fourth color are different from one another.   
     
     
       89. The display device of claim 88, wherein the first main pixel has a polarity sequence of (+)(−)/(−)(+) in a 2 by 2 matrix, and the second main pixel has a polarity sequence opposite to the polarity sequence of the first main pixel in the 2 by 2 matrix in a first frame. 
     
     
       90. The display device of claim 89, wherein, in a frame which is subsequent to the first frame, the first main pixel has a polarity sequence opposite to that of the first frame, and the second main pixel has a polarity sequence opposite to that of the first frame. 
     
     
       91. The display device of claim 89, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       92. The display device of claim 91, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       93. The display device of claim 91, wherein the first conductor comprises at least one of indium zinc oxide and indium tin oxide. 
     
     
       94. The display device of claim 91, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       95. The display device of claim 85, wherein the first main pixel has a polarity sequence of (+)(−)/(−)(+) in a 2 by 2 matrix, and the second main pixel has a polarity sequence opposite to the polarity sequence of the first main pixel in the 2 by 2 matrix in a first frame. 
     
     
       96. The display device of claim 95, wherein, in a frame which is subsequent to the first frame, the first main pixel has a polarity sequence opposite to that of the first frame, and the second main pixel has a polarity sequence opposite to that of the first frame. 
     
     
       97. The display device of claim 95, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       98. The display device of claim 97, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       99. The display device of claim 98, wherein the first conductor comprises at least one of indium zinc oxide and indium tin oxide. 
     
     
       100. The display device of claim 98, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       101. The display device of claim 85, wherein the first transmission part comprises a first transmission line of the at least one pair of transmission lines which cross each other has an opened portion disposed therein,
 wherein the first transmission line further comprises a first conductor disposed in the opened portion.   
     
     
       102. The display device of claim 101, wherein the first transmission line has a width which is different than a width of a second transmission line of the at least one pair of transmission lines which do not cross each other. 
     
     
       103. The display device of claim 102, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       104. The display device of claim 103, wherein the plurality of gate lines comprise a multi-layered structure including at least two metal layers, and wherein at least two of the at least two metal layers have different physical properties from each other. 
     
     
       105. The display device of claim 104, wherein the plurality of data lines comprise a multi-layered structure including at least two metal layers, and wherein at least two of the at least two metal layers have different physical properties from each other. 
     
     
       106. The display device of claim 105, wherein the plurality of data lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       107. The display device of claim 85, wherein the plurality of gate lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof. 
     
     
       108. The display device of claim 107, wherein the plurality of data lines comprise at least one of chromium, aluminum, copper, molybdenum and alloys thereof.

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