USRE50119EExpiredUtility

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

Assignee: SAMSUNG DISPLAY CO LTDPriority: Sep 12, 2005Filed: Jul 26, 2021Granted: Sep 10, 2024
Est. expirySep 12, 2025(expired)· nominal 20-yr term from priority
Inventors:Dong-Gyu Kim
G02F 1/1345G09G 2300/0452G02F 1/136286G09G 2300/0426G09G 3/3614G09G 3/3648G02F 1/133
78
PatentIndex Score
0
Cited by
49
References
33
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
What is claimed is: 
     
       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 which extends in a first direction;   a plurality of data lines which extends in a second direction and crosses the plurality of gate lines;   a plurality of main pixels, each main pixel of the plurality of main pixels comprising first to fourth sub-pixels, wherein two adjacent sub-pixels of two adjacent main pixels in the second direction have a same color as each other; and   a data driver which supplies polarity signals to the plurality of main pixels; and   wherein the first sub-pixel has a first color, the second sub-pixel has a second color, the third sub-pixel has a third color, and the fourth sub-pixel has a fourth color,   wherein the first color, the second color, the third color, and the fourth color are different from each other,   wherein a polarity of the polarity signals applied to two of same-colored sub-pixels adjacent to each other in the first direction are opposite to each other, and   wherein a polarity of the polarity signals applied to two of same-colored sub-pixels adjacent to each other in the second direction are opposite to each other.   
     
     
       22. The display device of  claim 21 , further comprising:
 a transmission part disposed between the data driver and the plurality of main pixels,   wherein the transmission part receives a first arrangement of polarity signals and outputs a second arrangement of polarity signals.   
     
     
       23. The display device of  claim 22 , wherein
 the first arrangement is defined by polarities of two adjacent polarity signals consecutively, without any intervening polarity, repeated as a minimum repeating unit in the first direction, and   the second arrangement is defined by polarities of four adjacent polarity signals consecutively, without any intervening polarity, repeated as a minimum repeating unit in the first direction.   
     
     
       24. The display device of  claim 22 , wherein the first arrangement is defined by polarities of two adjacent polarity signals consecutively repeated as a unit in the first direction, wherein the second arrangement is defined by polarities of eight adjacent polarity signals consecutively repeated as a unit in the first direction. 
     
     
       25. The display device of  claim 24 , wherein the first arrangement comprises an arrangement of (+)(−)(+)(−)(+)(−)(+)(−) polarity signals, and the second arrangement comprises an arrangement of (+)(−)(+)(−)(−)(+)(−)(+) polarity signals. 
     
     
       26. The display device of  claim 24 , wherein the first arrangement comprises an arrangement of (−)(+)(−)(+)(−)(+)(−)(+) polarity signals, and the second arrangement comprises an arrangement of (−)(+)(−)(+)(+)(−)(+)(−) polarity signals. 
     
     
       27. The display device of  claim 24 , wherein the first arrangement comprises an arrangement of (+)(−)(+)(−) polarity signals, and the second arrangement comprises an arrangement of (+)(−)(−)(+) polarity signals. 
     
     
       28. The display device of  claim 24 , wherein the first arrangement comprises an arrangement of (−)(+)(−)(+) polarity signals, and the second arrangement comprises an arrangement of (−)(+)(+)(−) polarity signals. 
     
     
       29. The display device of  claim 22 , wherein the transmission part comprises a first transmission part including at least one pair of transmission lines crossing each other, and a second transmission part including at least one pair of transmission lines that do not cross each other. 
     
     
       30. The display device of  claim 29 , wherein the first transmission part and the second transmission part are alternatively arranged in each main pixel in the first direction. 
     
     
       31. The display device of  claim 21 , wherein the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel are sequentially arranged along the first direction. 
     
     
       32. The display device of  claim 21 , wherein the first sub-pixel and the second sub-pixel are adjacent to each other in the first direction,
 wherein the third sub-pixel and the fourth sub-pixel are adjacent to each other in the first direction,   wherein the first sub-pixel and the third sub-pixel are adjacent to each other in the second direction, and   wherein the second sub-pixel and the fourth sub-pixel are adjacent to each other in the second direction.   
     
     
       33. The display device of  claim 21 , wherein the first color is red, the second color is green, the third color is blue, and the fourth color is white.

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