Array substrate for a liquid crystal display device and method for fabricating the same
First Claim
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1. A method of manufacturing a liquid crystal display device, comprising;
- forming an array substrate having (M+m) gate lines and (N+n) data lines to define a matrix of (M+m)×
(N+n) pixels, wherein the (M+m)×
(N+n) pixels include (M×
N) display pixels and (Mn+Nm+mn) redundant pixels;
testing the display pixels for electrical defects; and
disabling the redundant pixels if the display pixels are defect free.
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Abstract
A method of fabricating LCD devices from large array substrates having redundant pixels. Large array substrates without defects can be used to fabricate large LCD device and the redundant pixels can be disabled. Large array substrates with defects can be cut into smaller array substrates and then used to form small LCD devices. The pixels around the cutting lines of the large array substrate are redundant and can be covered or disabled.
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Citations
21 Claims
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1. A method of manufacturing a liquid crystal display device, comprising;
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forming an array substrate having (M+m) gate lines and (N+n) data lines to define a matrix of (M+m)×
(N+n) pixels, wherein the (M+m)×
(N+n) pixels include (M×
N) display pixels and (Mn+Nm+mn) redundant pixels;
testing the display pixels for electrical defects; and
disabling the redundant pixels if the display pixels are defect free. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
cutting the array substrate into a plurality of cut substrates if a defect is found; and
attaching an upper substrate to a cut substrate, wherein the cut substrate is comprised of the defective free pixels, using a sealant.
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15. A method of manufacturing a liquid crystal display device according to claim 14, wherein said sealant masks a plurality of pixels.
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16. A method of manufacturing a liquid crystal display device according to claim 15, wherein insulation is placed over cut data lines and cut gate lines.
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17. A method of manufacturing a liquid crystal display device according to claim 14, wherein a liquid crystal is disposed between said cut substrate and said upper substrate.
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18. A method of manufacturing a liquid crystal display device, comprising;
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forming a plurality of pixels in a matrix on a first substrate;
testing the formed pixels for defects;
cutting the first substrate into a plurality of small substrates when a defect is found;
providing a plurality of second substrates that correspond in size to the cut small substrates, wherein the cut small substrates are comprised of defect free pixels;
assembling a second substrates to each small substrate, respectively;
injecting liquid crystal into a space between the small substrates and the second substrates; and
sealing the space using a sealant. - View Dependent Claims (19, 20)
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21. A method of manufacturing a liquid crystal display device, comprising;
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forming a plurality of pixels in a matrix on a first substrate;
testing the pixels for defects;
disabling some of the pixels when a defect is not found;
assembling a second substrate with the first substrate;
injecting a liquid crystal into a space between the first and second substrates; and
sealing the space with a sealant.
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Specification
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Current AssigneeLG Display Co., Ltd.
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Original AssigneeLG Philips LCD Company Limited (LG Display Co., Ltd.)
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InventorsKim, Soo-Mahn
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Primary Examiner(s)Kim, Robert H.
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Assistant Examiner(s)Chung, David Y.
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Application NumberUS09/757,601Publication NumberTime in Patent Office880 DaysField of Search349/139, 349/143, 349/192, 349/141, 349/106, 324/770, 345/96, 345/103US Class Current349/139CPC Class CodesG02F 1/1309 Repairing; TestingG02F 1/133351 Manufacturing of individual...G02F 1/134336 MatrixG02F 1/136259 Repairing; DefectsG02F 2201/123 pixel
