Source: http://www.google.com/patents/US7619709?ie=ISO-8859-1&dq=5987118
Timestamp: 2014-03-07 11:02:40
Document Index: 279652139

Matched Legal Cases: ['art 13', 'art 14', 'art 13', 'art 15', 'art 13', 'arts 14', 'art 113', 'art 114', 'art 113', 'art 115', 'art 113', 'arts 114', 'art 113', 'art 113', 'art 115', 'art 113', 'art 114', 'art 113']

Patent US7619709 - Liquid crystal display panel and fabricating method thereof - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA liquid crystal display panel and fabricating method thereof. The present invention forms the dummy lines in the areas separating the gate lines extended to the dummy area from the image display part of the liquid crystal display panel with the same opaque metal material of the data lines and the other...http://www.google.com/patents/US7619709?utm_source=gb-gplus-sharePatent US7619709 - Liquid crystal display panel and fabricating method thereofAdvanced Patent SearchPublication numberUS7619709 B2Publication typeGrantApplication numberUS 10/326,374Publication dateNov 17, 2009Filing dateDec 23, 2002Priority dateMar 20, 2002Fee statusPaidAlso published asCN1324386C, CN1445594A, US20030179334Publication number10326374, 326374, US 7619709 B2, US 7619709B2, US-B2-7619709, US7619709 B2, US7619709B2InventorsSung-Chun Kang, Sun-Gi LeeOriginal AssigneeLg Display Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (108), Non-Patent Citations (2), Referenced by (2), Classifications (11), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetLiquid crystal display panel and fabricating method thereofUS 7619709 B2Abstract A liquid crystal display panel and fabricating method thereof. The present invention forms the dummy lines in the areas separating the gate lines extended to the dummy area from the image display part of the liquid crystal display panel with the same opaque metal material of the data lines and the other dummy lines in the areas separating the data lines with the same opaque metal material of the gate lines. Thus, the dummy lines block the light. Therefore, the present invention minimizes the generation of the spot degradation caused by the scratches on the black matrix or the particles attached/detached to/from the black matrix in the dummy area as well as reduces the time taken for checking the spot degradation, thereby increasing quality of display and productivity.
bonding the first and second mother substrates to each other. Description
Referring to FIG. 1, a unit liquid crystal display panel 10 includes an image display part 13 having liquid crystal cells arranged in a matrix form, a gate pad part 14 connecting gate lines GL1�GLm of the image display part 13 to a gate driver integrated circuit (not shown in the drawing) supplying gate signals, and a data pad part 15 connecting data lines DL1�DLn of the image display part 13 to a data driver integrated circuit (not shown in the drawing) supplying image information. In this case, the gate and data pad parts 14 and 15 are formed on edge areas of a thin film transistor array substrate 1 having one long and one short side protruding from the sides of the color filter substrate 2.
In this case, in areas provided by the data and gate lines DL1�DLn and GL1�GLm crossing with each other on the thin film transistor array substrate 1, thin film transistors are formed to switch liquid crystal cells, respectively, pixel electrodes are connected to the thin film transistors to apply electric fields to the corresponding liquid crystal cells, and a passivation layer is formed on an entire surface to protect the data lines DL1�DLn, gate lines GL1�GLm, thin film transistors, and electrodes.
SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a liquid crystal display panel and fabricating method thereof that substantially obviates one or more problems due to limitations and disadvantages of the related art.
Referring to FIG. 4, a unit liquid crystal display panel 100 includes an image display part 113 having liquid crystal cells arranged in a matrix form, a gate pad part 114 connecting gate lines GL1�GLm of the image display part 113 to a gate driver integrated circuit (not shown in the drawing) supplying gate signals, and a data pad part 115 connecting data lines DL1�DLn of the image display part 113 to a data driver integrated circuit (not shown in the drawing) supplying image information. In this case, the gate and data pad parts 114 and 115 are formed on edge areas of a thin film transistor array substrate 111 having one long and one short side protruding longer than those of a color filter substrate 112.
In this case, in areas provided by the data and gate lines DL1�DLn and GL1�GLm crossing with each other on the thin film transistor array substrate 111, thin film transistors are formed to switch liquid crystal cells, respectively, pixel electrodes are connected to the thin film transistors to apply electric fields to the corresponding liquid crystal cells, and a passivation layer is formed on an entire surface to protect the data lines DL1�DLn, gate lines GL1�GLm, thin film transistors, and electrodes.
In order to prevent light from leaking through edges of the unit liquid crystal display panel 100 when the light emitted from the backlight assembly is transmitted to the dummy area 116, a material such as a black matrix is coated on the dummy area 116. The gate and data lines GL1�GLm and DL1�DLn crossing with each other in the image display part 113 extend to the dummy area 116. In this case, the gate and data lines GL1�GLm and DL1�DLn are generally made of an opaque material of metal blocking light.
In one embodiment of the present invention, dummy lines SL11�SL1p are formed on areas separating the extending gate lines GL1�GLm from each other, respectively, and another dummy lines SL21�SL2q are formed on areas separating the extending data lines DL1�DLn from each other, respectively,
The dummy lines SL11�SL1p on the areas separating the extending gate lines GL1�GLm can be formed by selectively patterning the same metal line of the data lines DL1�DLn. Another dummy lines SL21�SL2q on areas separating the extending data lines DL1�DLn can be formed by patterning the same metal line of the gate lines GL1�GLm selectively.
Since the gate lines GL1�GLm, data lines DL1�DLn, and dummy lines SL11�SL1p and SL21�SL2q are made of the opaque material of metal to prevent the transmission of light, the present invention prevents the spot degradation caused in the dummy area 116 by the scratch or the adsorption/detachment of particles on the black matrix.
Besides, the dummy lines SL31 and SL132 on the areas separating the extending gate lines GL11 and GL12 can be formed by selectively patterning the same metal line of the data lines DL1�DLn in FIG. 4.
Since the gate lines GL11 and GL12, data lines DL1�DLn, and dummy lines SL31�SL32 are made of the opaque material of metal to prevent the transmission of light, the present invention prevents the spot degradation caused in the dummy area 116 defined on the edges of the short sides by the scratches or the adsorption/detachment of particles on the black matrix.
Subsequently, dummy lines SL31 and SL32 are formed on the gate insulating layer 122 of the areas separating the gate lines GL11 and GL12. In this case, the dummy lines SL31 and SL32 are formed on the dummy area simultaneously when data lines DL1�DLn crossing with the gate lines Gl11 and GL12 in the image display part 113 of the unit liquid crystal display panel 100 are patterned. The data lines DL1�DLn transmit image signals supplied from a data driver integrated circuit (not shown in the drawing) through a data pad part 115 to the image display part 113 of the liquid crystal display panel 100.
Besides, the dummy lines SL31 and SL32 on the areas separating the data lines DL11 and DL12 can be formed by selectively patterning the same metal line of the gate lines GL1�GLn in FIG. 4.
Since the data lines DL11 and DL12, gate lines GL1�GLn, and dummy lines SL31 and SL32 are made of the opaque material of metal to prevent the transmission of light, the present invention prevents the spot degradation caused in the dummy area 116 defined on the edges of the short sides by the scratches or the adsorption/detachment of particles on the black matrix.
First of all, dummy lines SL31 and SL32 are patterned on a first substrate 121 to separate with a predetermined interval from each other. In this case, the dummy lines SL31 and SL32 are formed in the dummy area 116 simultaneously when gate lines GL1�GLn are patterned in an image display part of the unit liquid crystal display panel 100. Moreover, the dummy lines SL31 and SL32 are patterned and formed in areas separating data lines DL11 and DL12 that will be formed afterward. The gate lines GL1�GLn transmit scan signals supplied from a gate driver integrated circuit (not shown in the drawing) through a gate pad part 114 to the image display part 113 of the unit liquid crystal display panel 100.
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(C) 2001 at p. 5.2Office Action issued by the Chinese Patent Office on Jun. 30, 2006 (w/ English Translation).* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8482489 *Jul 29, 2009Jul 9, 2013Chimei Innolux CorporationSystems for displaying images and manufacturing methods for display panelsUS20100045572 *Jul 29, 2009Feb 25, 2010Tpo Displays Corp.Systems for displaying images and manufacturing methods for display panels* Cited by examinerClassifications U.S. Classification349/139, 349/149International ClassificationG02F1/1335, G02F1/1333, G02F1/1343, G02F1/1345Cooperative ClassificationG02F1/1345, G02F2001/133388, G02F1/133509European ClassificationG02F1/1345, G02F1/1335FLegal EventsDateCodeEventDescriptionMar 15, 2013FPAYFee paymentYear of fee payment: 4Oct 17, 2008ASAssignmentOwner name: LG DISPLAY CO., LTD., KOREA, REPUBLIC OFFree format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;REEL/FRAME:021754/0045Effective date: 20080304Owner name: LG DISPLAY CO., LTD.,KOREA, REPUBLIC OFFree format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100209;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100216;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100223;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100302;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100309;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100316;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100329;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100330;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100406;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100420;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100427;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100511;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100518;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;US-ASSIGNMENT DATABASE UPDATED:20100525;REEL/FRAME:21754/45Free format text: CHANGE OF NAME;ASSIGNOR:LG.PHILIPS LCD CO., LTD.;REEL/FRAME:21754/45Dec 23, 2002ASAssignmentOwner name: LG.PHILIPS LCD CO., LTD, KOREA, REPUBLIC OFFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KANG, SUNG C.;LEE, SUN GI;REEL/FRAME:013609/0872Effective date: 20021223RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google