USRE48661EExpiredUtility

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

Assignee: SAMSUNG DISPLAY CO LTDPriority: Sep 12, 2005Filed: Mar 25, 2015Granted: Jul 27, 2021
Est. expirySep 12, 2025(expired)· nominal 20-yr term from priority
Inventors:Dong-Gyu Kim
G02F 1/133G09G 2300/0426G02F 1/1345G02F 1/136286G09G 2300/0452G09G 3/3614G09G 3/3648
65
PatentIndex Score
0
Cited by
45
References
29
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 disposed on a substrate, wherein the plurality of gate lines 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 four sub-pixels;   a data driver which supplies polarity signals to the plurality of main pixels; and   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,   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.   
     
     
       22. 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 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 four sub-pixels;   a data driver which supplies polarity signals to the plurality of main pixels; and   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,   wherein the first arrangement is defined by polarities of four 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,   wherein the first arrangement comprises an arrangement of (+)(−)(+)(−)(+)(−)(+)(−) polarity signals and the second arrangement comprises an arrangement of (+)(−)(+)(−)(−)(+)(−)(+) polarity signals.   
     
     
       23. 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 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 four sub-pixels;   a data driver which supplies polarity signals to the plurality of main pixels; and   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,   wherein the first arrangement is defined by polarities of four 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,   wherein the first arrangement comprises an arrangement of (−)(+)(−)(+)(−)(+)(−)(+) polarity signals and the second arrangement comprises an arrangement of (−)(+)(−)(+)(+)(−)(+)(−) polarity signals.   
     
     
       24. The display device of claim 21, wherein the first arrangement comprises an arrangement of (+)(−)(+)(−) polarity signals and the second arrangement comprises an arrangement of (+)(−)(−)(+) polarity signals. 
     
     
       25. The display device of claim 21, wherein the first arrangement comprises an arrangement of (−)(+)(−)(+) polarity signals and the second arrangement comprises an arrangement of (−)(+)(+)(−) polarity signals. 
     
     
       26. 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 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 2n sub-pixels in the first direction, wherein n is one or two, the main pixels having same color arrangement of sub-pixels from each other;   a data driver which supplies polarity signals to the plurality of main pixels; and   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, wherein the first arrangement is defined by polarities of two or four adjacent polarity signals consecutively repeated as a unit in the first direction,   wherein a polarity of the polarity signals applied to two of same-colored sub-pixels adjacent from each other in the first direction are opposite from each other, and   wherein a polarity of the polarity signals applied to two of same-colored sub-pixels adjacent from each other in the second direction are opposite from each other.   
     
     
       27. The display device of claim 26, wherein sub-pixels comprises first to fourth sub-pixels adjacent from each other in the first direction, the first sub-pixel having a first color, the second sub-pixel having a second color, the third sub-pixel having a third color, and the fourth sub-pixel having a fourth color,
 wherein the first color, the second color, the third color, and the fourth color are different from each other.   
     
     
       28. The display device of claim 26, wherein a polarity of the polarity signals applied to odd sub-pixels of the same-colored sub-pixels are opposite from a polarity of the polarity signals applied to even sub-pixels of the same-colored sub-pixels. 
     
     
       29. The display device of claim 26, wherein a polarity of the polarity signals applied to odd sub-pixels of the same-colored sub-pixels are the same as each other, wherein a polarity of the polarity signals applied to even sub-pixels of the same-colored sub-pixels are the same as each other.

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