Source: http://www.google.com/patents/US6013335?ie=ISO-8859-1&dq=6,970,917
Timestamp: 2014-08-27 20:36:46
Document Index: 83949358

Matched Legal Cases: ['Application No. 5', 'Application No. 5', 'Application No. 5', 'Application No. 5', 'Application No. 5', 'Application No. 5']

Patent US6013335 - Liquid crystal display apparatus and method for processing the same - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA liquid crystal display apparatus of the invention includes a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates with alignment films formed at interfaces between the liquid crystal layer and the respective substrates. The alignment films regulate aligning conditions...http://www.google.com/patents/US6013335?utm_source=gb-gplus-sharePatent US6013335 - Liquid crystal display apparatus and method for processing the sameAdvanced Patent SearchPublication numberUS6013335 APublication typeGrantApplication numberUS 08/963,637Publication dateJan 11, 2000Filing dateNov 10, 1997Priority dateJul 30, 1993Fee statusPaidAlso published asCN1087434C, CN1117141A, DE69430781D1, DE69430781T2, EP0636919A1, EP0636919B1, US5666178Publication number08963637, 963637, US 6013335 A, US 6013335A, US-A-6013335, US6013335 A, US6013335AInventorsMitsuaki Hirata, Shigeaki Mizushima, Kazuyuki Aburazaki, Noriko Watanabe, Hiroko Iwagoe, Seiji Makino, Tomoko OkamuraOriginal AssigneeSharp Kabushiki KaishaExport CitationBiBTeX, EndNote, RefManPatent Citations (79), Non-Patent Citations (55), Referenced by (6), Classifications (12), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetLiquid crystal display apparatus and method for processing the sameUS 6013335 AAbstract A liquid crystal display apparatus of the invention includes a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates with alignment films formed at interfaces between the liquid crystal layer and the respective substrates. The alignment films regulate aligning conditions of liquid crystal in the liquid crystal layer. In the liquid crystal display apparatus, the liquid crystal layer includes two or more liquid crystal layer regions of different aligning conditions, and at least one of the alignment films has surface tensions which are different from each other in surface regions thereof corresponding to the respective liquid crystal layer regions of different aligning conditions.
What is claimed is: 1. A method for producing a liquid crystal display apparatus comprising a pair of substrates and a liquid crystal layer sandwiched between the pair of substrates with alignment films of an organic polymer formed at interfaces between the liquid crystal layer and each of the substrates, the alignment films regulating aligning conditions of liquid crystal in the liquid crystal layer, the liquid crystal layer including two or more liquid crystal layer regions of different initial aligning conditions, the method comprising:a step of selectively irradiating at least one of the alignment films with light, so as to have surface tensions, oxygen atom concentrations, or carbonyl radical concentrations which are different from each other in surface regions of the at least one of the alignment films, the surface regions being in contact with the liquid crystal layer regions having said different initial aligning conditions resulting in said different aligning conditions. 2. A method according to claim 1, wherein the light has a wavelength in a ultraviolet range.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a cross-sectional view schematically showing a liquid crystal apparatus according to Example 1 of the invention.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS3854793 *Jun 27, 1972Dec 17, 1974Bell Telephone Labor IncLiquid crystal cellsUS3947185 *Mar 29, 1974Mar 30, 1976Kabushiki Kaisha Suwa SeikoshaField effect liquid crystal display deviceUS3967883 *May 22, 1975Jul 6, 1976Rca CorporationLiquid crystal devices of the surface aligned typeUS4247174 *May 31, 1979Jan 27, 1981Siemens AktiengesellschaftLiquid crystal cellUS4252415 *Jul 11, 1978Feb 24, 1981Bbc Brown, Boveri & CieLiquid crystal cell and process for its productionUS4840460 *Nov 13, 1987Jun 20, 1989Honeywell Inc.Apparatus and method for providing a gray scale capability in a liquid crystal display unitUS4878742 *Aug 3, 1987Nov 7, 1989Canon Kabushiki KaishaLiquid crystal optical modulatorUS4930876 *Oct 27, 1988Jun 5, 1990Ricoh Company, Ltd.Liquid crystal display deviceUS5071228 *Dec 19, 1989Dec 10, 1991Nokia UnterhaltungselektronikBlack-white liquid crystal display having an insulation layer for blocking the diffusion of sodium ions from the glass of the cell plate to the polyphenylene of the orientation layerUS5073294 *Oct 29, 1990Dec 17, 1991Hercules IncorporatedProcess of preparing compositions having multiple oriented mesogensUS5172255 *Apr 20, 1992Dec 15, 1992Nokia Unterhaltungselektronik (Deutschland) GmbhProcess for increasing pretilt angles in nematic liquid crystal cellsUS5189540 *Feb 3, 1992Feb 23, 1993Fujitsu LimitedLiquid crystal display device having a material for disturbing the orientation of the liquid crystal moleculesUS5198917 *Apr 4, 1990Mar 30, 1993Citizen Watch Co., Ltd.Method of aligning liquid crystal molecules in an active matrix liquid crystal display element by two alignment treatmentsUS5223963 *Feb 12, 1992Jun 29, 1993Canon Kabushiki KaishaChiral smectic liquid crystal device with different pretilt angles in pixel and non-pixel areasUS5231039 *Aug 9, 1991Jul 27, 1993Sharp Kabushiki KaishaMethod of fabricating a liquid crystal display deviceUS5280375 *Dec 30, 1992Jan 18, 1994Matsushita Electric Industrial Co., Ltd.Liquid crystal display device with two different pre-tilt angles adjacent on one substrateUS5303076 *Jan 30, 1992Apr 12, 1994Canon Kabushiki KaishaChiral smectic liquid crystal device with homogeneous orientation layer on electrodes and homeotropic between electrodesUS5309264 *Apr 30, 1992May 3, 1994International Business Machines CorporationLiquid crystal displays having multi-domain cellsUS5321537 *Mar 16, 1993Jun 14, 1994Canon Kabushiki KaishaMethod for producing chiral smectic liquid crystal device including masking areas between electrodes, rubbing, removing mask, and rubbing againUS5398127 *Mar 2, 1993Mar 14, 1995Matsushita Electric Industrial Co., Ltd.Active matrix twisted nematic liquid crystal display with rubbing direction 1-44 degrees to the electrodesUS5416619 *Dec 17, 1992May 16, 1995Sony CorporationLiquid crystal display device with reverse tilt suppressing meansUS5453862 *Sep 1, 1993Sep 26, 1995Stanley Electric Co., Ltd.Rubbing-free (chiral) nematic liquid crystal displayUS5473455 *Dec 18, 1992Dec 5, 1995Fujitsu LimitedDomain divided liquid crystal display device with particular pretilt angles and directions in each domainUS5495355 *Jun 25, 1993Feb 27, 1996Semiconductor Energy Laboratory Co., Ltd.Antiparallel aligned nematic liquid crystal device with positive dielectric anisotropyEP0421190A2 *Sep 19, 1990Apr 10, 1991Nokia (Deutschland) GmbHMethod of manufacturing a liquid crystal cellEP0525478A2 *Jul 10, 1992Feb 3, 1993F. Hoffmann-La Roche AgLiquid crystal display cellEP0549283A2 *Dec 18, 1992Jun 30, 1993Fujitsu LimitedDomain divided liquid crystal display deviceEP0613037A2 *Jan 28, 1994Aug 31, 1994Sharp Kabushiki KaishaA liquid crystal display apparatus,a method for producing the same,and a substrateJP6479725A * Title not availableJPH0212A * Title not availableJPH055886A * Title not availableJPH075467A * Title not availableJPH075469A * Title not availableJPH0240627A * Title not availableJPH0255330A * Title not availableJPH0274924A * Title not availableJPH0412314A * Title not availableJPH0634978A * Title not availableJPH0643460A * Title not availableJPH0695120A * Title not availableJPH01120531A * Title not availableJPH01120533A * Title not availableJPH01169428A * Title not availableJPH01204025A * Title not availableJPH01210932A * Title not availableJPH01245223A * Title not availableJPH01303412A * Title not availableJPH03134622A * Title not availableJPH03230120A * Title not availableJPH05107544A * Title not availableJPH05173135A * Title not availableJPH05173136A * Title not availableJPH05173137A * Title not availableJPH05173138A * Title not availableJPH05188374A * Title not availableJPH05203951A * Title not availableJPH05224210A * Title not availableJPH05297378A * Title not availableJPH05303099A * Title not availableJPH06130396A * Title not availableJPH06148640A * Title not availableJPH06148642A * Title not availableJPH06194665A * Title not availableJPH06308497A * Title not availableJPH06324339A * Title not availableJPH06324342A * Title not availableJPS6095423A * Title not availableJPS6479725A * Title not availableJPS56146119A * Title not availableJPS58139124A * Title not availableJPS60136716A * Title not availableJPS60147722A * Title not availableJPS60211424A * Title not availableJPS60211425A * Title not availableJPS60217341A * Title not availableJPS61141420A * Title not availableJPS61249021A * Title not availableJPS62144133A * Title not availableJPS63106624A * Title not available* Cited by examinerNon-Patent CitationsReference1"Late-News Paper: A Full-Color TFT-LCD with a Domain-Divided Twisted Nematic Structure", Y. Koike et al, SID International Symposium Digest of Technical Papers, First Edition, May, 1992, pp. 798-801.2 *CTC Handbook of Chemistry & Physics, 56th ed., ed. Weast, CRC Press, Cleveland Ohio, 1975 (no month).3 *IBM Technical Disclosure Bulletin, vol. 33, No. 18, Jun. 1990, New York, US, pp. 199 200, XP000122861, Controlled Two and Four Domain Twisted Nematic Liquid Crystal Displays .4IBM Technical Disclosure Bulletin, vol. 33, No. 18, Jun. 1990, New York, US, pp. 199-200, XP000122861, "Controlled Two- and Four-Domain Twisted Nematic Liquid Crystal Displays".5 *IBM Technical Disclosure Bulletin, vol. 36, No. 8, Aug. 1993, New York, US, pp. 485 486, XP000390303, Bi Handedness Two Domain Twist Nematic Cell for Active Matrix Display Application .6IBM Technical Disclosure Bulletin, vol. 36, No. 8, Aug. 1993, New York, US, pp. 485-486, XP000390303, "Bi-Handedness Two-Domain Twist Nematic Cell for Active Matrix Display Application".7 *Japanese Office Action dated Apr. 30, 1999 issued in Japanese Patent Application No. 5 216698 (w/English Translation).8 *Japanese Office Action dated Apr. 30, 1999 issued in Japanese Patent Application No. 5 216699 (w/English Translation).9Japanese Office Action dated Apr. 30, 1999 issued in Japanese Patent Application No. 5-216698 (w/English Translation).10Japanese Office Action dated Apr. 30, 1999 issued in Japanese Patent Application No. 5-216699 (w/English Translation).11 *Japanese Office Action dated Jun. 24, 1999 issued in Japanese Patent Application No. 5 190499 (w/English Translation).12Japanese Office Action dated Jun. 24, 1999 issued in Japanese Patent Application No. 5-190499 (w/English Translation).13Kamada et al, "PD-12 Wide Viewing Angle Full-Color TFT LCDs", Japan Display '92, p. 886 Oct. 1992.14 *Kamada et al, PD 12 Wide Viewing Angle Full Color TFT LCDs , Japan Display 92, p. 886 Oct. 1992.15Koike et al, "A Full-Color TFT-LCD With a Domain-Divided Twisted-Nematic Structure", SID1992 International Symposium--Digest of Technical Papers, May 1992, Playa De Rey, CA, pp. 798-801.16 *Koike et al, A Full Color TFT LCD With a Domain Divided Twisted Nematic Structure , SID1992 International Symposium Digest of Technical Papers, May 1992, Playa De Rey, CA, pp. 798 801.17 *Late News Paper: A Full Color TFT LCD with a Domain Divided Twisted Nematic Structure , Y. Koike et al, SID International Symposium Digest of Technical Papers, First Edition, May, 1992, pp. 798 801.18 *Patent Abstracts of Japan, vol. 007, No. 256 (P 236) Nov. 15, 1983 & JP A 58139124 (Tokyo Shibaura Denki KK) Aug. 18, 1983.19Patent Abstracts of Japan, vol. 007, No. 256 (P-236) Nov. 15, 1983 & JP-A-58139124 (Tokyo Shibaura Denki KK) Aug. 18, 1983.20 *Patent Abstracts of Japan, vol. 009, No. 243 (P 392) Sep. 30, 1985 & JP A 60095423 (Citizen Tokei KK) May 28, 1985.21Patent Abstracts of Japan, vol. 009, No. 243 (P-392) Sep. 30, 1985 & JP-A-60095423 (Citizen Tokei KK) May 28, 1985.22 *Patent Abstracts of Japan, vol. 009, No. 304 (P 409) Nov. 30, 1985 & JP A 60 136 716 (Nihon Seiki KK) Jul. 20, 1985 Jap. pat. doc.23Patent Abstracts of Japan, vol. 009, No. 304 (P-409) Nov. 30, 1985 & JP-A-60 136 716 (Nihon Seiki KK) Jul. 20, 1985 + Jap. pat. doc.24 *Patent Abstracts of Japan, vol. 010, No. 080 (P 441) Mar. 29, 1986 & JP A 60 217 341 (Citizen Tokei KK) Oct. 30, 1985.25Patent Abstracts of Japan, vol. 010, No. 080 (P-441) Mar. 29, 1986 & JP-A-60 217 341 (Citizen Tokei KK) Oct. 30, 1985.26 *Patent Abstracts of Japan, vol. 011, No. 097 (P 560) Mar. 26, 1987 & JP A 61249021 (Citizen Watch Co Ltd) Nov. 6, 1986 Jap. pat. doc.27Patent Abstracts of Japan, vol. 011, No. 097 (P-560) Mar. 26, 1987 & JP-A-61249021 (Citizen Watch Co Ltd) Nov. 6, 1986 + Jap. pat. doc.28 *Patent Abstracts of Japan, vol. 011, No. 373 (P 643) Dec. 5, 1987 & JP A 62 144 133 (Seiko Epson Corp) Jun. 27, 1987.29Patent Abstracts of Japan, vol. 011, No. 373 (P-643) Dec. 5, 1987 & JP-A-62 144 133 (Seiko Epson Corp) Jun. 27, 1987.30 *Patent Abstracts of Japan, vol. 013, No. 306 (P 897) Jul. 13, 1989 & JP A 01 079 725 (Matsushita Electric Ind Co Ltd) Mar. 24, 1989 Jap. pat. doc.31Patent Abstracts of Japan, vol. 013, No. 306 (P-897) Jul. 13, 1989 & JP-A-01 079 725 (Matsushita Electric Ind Co Ltd) Mar. 24, 1989 + Jap. pat. doc.32 *Patent Abstracts of Japan, vol. 013, No. 361 (P 917) Aug. 11, 1989 & JP A 01 120 531 (Alps Electric Co Ltd) May 12, 1989 Jap. pat. doc.33 *Patent Abstracts of Japan, vol. 013, No. 361 (P 917) Aug. 11, 1989 & JP A 01 120 533 (Alps Electric Co Ltd) May 12, 1989 Jap. pat. doc.34Patent Abstracts of Japan, vol. 013, No. 361 (P-917) Aug. 11, 1989 & JP-A-01 120 531 (Alps Electric Co Ltd) May 12, 1989 + Jap. pat. doc.35Patent Abstracts of Japan, vol. 013, No. 361 (P-917) Aug. 11, 1989 & JP-A-01 120 533 (Alps Electric Co Ltd) May 12, 1989 + Jap. pat. doc.36 *Patent Abstracts of Japan, vol. 013, No. 440 (P 940) Oct. 4, 1989 & JP A 01 169 428 (Alps Electric Co Ltd) Jul. 4, 1989 Jap. pat. doc.37Patent Abstracts of Japan, vol. 013, No. 440 (P-940) Oct. 4, 1989 & JP-A-01 169 428 (Alps Electric Co Ltd) Jul. 4, 1989 + Jap. pat. doc.38 *Patent Abstracts of Japan, vol. 013, No. 505 (P 959), Nov. 14, 1989 & JP A 01 204 025 (Konica Corp) Aug. 16, 1989 Jap. pat. doc.39Patent Abstracts of Japan, vol. 013, No. 505 (P-959), Nov. 14, 1989 & JP-A-01 204 025 (Konica Corp) Aug. 16, 1989 + Jap. pat. doc.40 *Patent Abstracts of Japan, vol. 013, No. 583 (P 981) Dec. 22, 1989, & JP A 01245223 (Nippon Telegr & Teleph Corp) Sep. 29, 1989.41Patent Abstracts of Japan, vol. 013, No. 583 (P-981) Dec. 22, 1989, & JP-A-01245223 (Nippon Telegr & Teleph Corp) Sep. 29, 1989.42 *Patent Abstracts of Japan, vol. 014, No. 230 (P 1048) May 16, 1990 & JP A 02 055 330 (Matsushita Electric Ind Co Ltd) Feb. 23, 1990 also approve w/ partial translation.43Patent Abstracts of Japan, vol. 014, No. 230 (P-1048) May 16, 1990 & JP-A-02 055 330 (Matsushita Electric Ind Co Ltd) Feb. 23, 1990 also approve w/ partial translation.44 *Patent Abstracts of Japan, vol. 017, No. 265 (P 1542) May 24, 1993 & JP A 05 005 886 (Matsushita Electric Ind Co Ltd) Jan. 14, 1993 Jap. pat. doc.45Patent Abstracts of Japan, vol. 017, No. 265 (P-1542) May 24, 1993 & JP-A-05 005 886 (Matsushita Electric Ind Co Ltd) Jan. 14, 1993 + Jap. pat. doc.46 *Patent Abstracts of Japan, vol. 017, No. 611 (P 1641) Nov. 10, 1993 & JP A 05 188 374 (Matsushita Electric Ind Co Ltd) Jul. 30, 1993 Jap. pat. doc.47Patent Abstracts of Japan, vol. 017, No. 611 (P-1641) Nov. 10, 1993 & JP-A-05 188 374 (Matsushita Electric Ind Co Ltd) Jul. 30, 1993 + Jap. pat. doc.48 *Patent Abstracts of Japan, vol. 017, No. 631 (P 1648) Nov. 22, 1993 & JP A 05 203 951 (NEC Corp) Aug. 13, 1993 Japanese patent document.49Patent Abstracts of Japan, vol. 017, No. 631 (P-1648) Nov. 22, 1993 & JP-A-05 203 951 (NEC Corp) Aug. 13, 1993 + Japanese patent document.50Sumiyoshi et al, "A Complementary Twisted Nematic" Functional Devices Labs, NEC Corp., pp. 35-41, Feb. 1993.51 *Sumiyoshi et al, A Complementary Twisted Nematic Functional Devices Labs, NEC Corp., pp. 35 41, Feb. 1993.52Takatori et al, "Complementary TN LCD with Wide-Viewing Angle Grayscale", Japan Display '92, pp. 591-594 no month.53 *Takatori et al, Complementary TN LCD with Wide Viewing Angle Grayscale , Japan Display 92, pp. 591 594 no month.54Yang, K.H., "Two-Domain 80-Twisted Nematic Liquid Crystal Display for Grayscale Applications", Japanese Journal of Applied Physics, Letters, vol. 31, No. 11B, Nov. 1992, Tokyo, Japan, pp. L1603-1605.55 *Yang, K.H., Two Domain 80 Twisted Nematic Liquid Crystal Display for Grayscale Applications , Japanese Journal of Applied Physics, Letters, vol. 31, No. 11B, Nov. 1992, Tokyo, Japan, pp. L1603 1605.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6356335Jun 4, 1999Mar 12, 2002Lg. Phillips Lcd Co., Ltd.Multi-domain liquid crystal display deviceUS6525794Oct 19, 1999Feb 25, 2003Lg. Philips Lcd Co., Ltd.Multi-domain liquid crystal display device having a dielectric frame controlling alignment of the liquid crystal moleculesUS6734937 *Jan 25, 2001May 11, 2004International Business Machines CorporationFCB-type vertically aligned liquid crystal deviceUS6862064 *Jan 23, 2004Mar 1, 2005International Business Machines CorporationLiquid crystal device, fabricating method, and fabricating apparatus thereofUS20110287118 *Mar 25, 2011Nov 24, 2011Hopson Peyton LOphthalmic lens mold treatmentWO2001080287A2 *Apr 17, 2001Oct 25, 2001E Ink CorpProcess for fabricating thin film transistors* Cited by examinerClassifications U.S. Classification427/553, 349/167, 349/102, 349/73, 427/164, 349/77, 427/555International ClassificationG02F1/1337Cooperative ClassificationG02F2001/133761, G02F2001/133757, G02F1/133788European ClassificationG02F1/1337T4Legal EventsDateCodeEventDescriptionJun 8, 2011FPAYFee paymentYear of fee payment: 12Jun 15, 2007FPAYFee paymentYear of fee payment: 8Jun 17, 2003FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google