Source: http://www.google.com/patents/US6144433?dq=6272333
Timestamp: 2015-07-03 23:45:32
Document Index: 761885498

Matched Legal Cases: ['Application No. 97304496', 'art 2', 'art 2', 'Application No. 97304496', 'art 2', 'art 2']

Patent US6144433 - LCD in which two regions of liquid crystal layer act as two optical ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA twisted liquid crystal device includes a liquid crystal layer and first and second alignment layers disposed in opposite sides of the liquid crystal layer. The first and second alignment layers have respective alignment directions which are mutually inclined. A first linear polarizer is disposed on...http://www.google.com/patents/US6144433?utm_source=gb-gplus-sharePatent US6144433 - LCD in which two regions of liquid crystal layer act as two optical retarders having inclined optic axesAdvanced Patent SearchPublication numberUS6144433 APublication typeGrantApplication numberUS 08/881,138Publication dateNov 7, 2000Filing dateJun 24, 1997Priority dateJun 26, 1996Fee statusPaidAlso published asDE69714665D1, DE69714665T2, EP0816906A2, EP0816906A3, EP0816906B1Publication number08881138, 881138, US 6144433 A, US 6144433A, US-A-6144433, US6144433 A, US6144433AInventorsMartin David Tillin, Michael John TowlerOriginal AssigneeSharp Kabushiki KaishaExport CitationBiBTeX, EndNote, RefManPatent Citations (39), Non-Patent Citations (30), Referenced by (5), Classifications (15), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetLCD in which two regions of liquid crystal layer act as two optical retarders having inclined optic axes
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Sato, Display Devices, pp. 18 21, 1994, Reflection Formats for Color LCDs Solve Power Consumption Problems.3A. Sato, Display Devices, pp. 18-21, 1994, Reflection Formats for Color LCDs Solve Power-Consumption Problems.4 *European Search Report for European Patent Application Ser. No. 97304483.7 dated Nov. 17, 1998.5 *European Search Report related to European Patent Application No. 97304496.9 dated Aug. 18, 1998.6 *G.D. Sharp et al., SID 93 Digest, pp. 665 668, 1993, P 60: Color Switching Using Ferroelectric Liquid Crystals .7G.D. Sharp et al., SID 93 Digest, pp. 665-668, 1993, "P-60: Color Switching Using Ferroelectric Liquid Crystals".8Itoh Y. et al.; "A Double-Layer Electrically Controlled Birefringence Liquid-Crystal Display with a Wide-Viewing-Angle Cone" Japanese Journal of Applied Physics, Part 2 (Letters), Jul. 15, 1991, Japan, vol. 30, No. 7B, pp. L1296-L1299.9 *Itoh Y. et al.; A Double Layer Electrically Controlled Birefringence Liquid Crystal Display with a Wide Viewing Angle Cone Japanese Journal of Applied Physics, Part 2 (Letters), Jul. 15, 1991, Japan, vol. 30, No. 7B, pp. L1296 L1299.10 *Kuo C L et al.: Wide Viewing Angle Reflective LCD Using A Film Compensated HAN Cell with Single Polarizer Proceedings of Fifteenth International Display Research Conference, Asia Display 95, Proceedings of 15 th International Display Research Conference, Hamamatsu, Japan, Oct. 16 18, 1995, pp. 135 138.11Kuo C--L et al.: "Wide-Viewing-Angle Reflective LCD Using A Film-Compensated HAN Cell with Single Polarizer" Proceedings of Fifteenth International Display Research Conference, Asia Display '95, Proceedings of 15th International Display Research Conference, Hamamatsu, Japan, Oct. 16-18, 1995, pp. 135-138.12 *Method to Suppress Reverse Twist State for Ultraviolet Two Domain Liquid Crystal Display and Other Splay Type Two Domain Liquid Crystal Displays , IBM Technical Disclosure Bulletin, vol. 40, No. 5, May 1997, pp. 77 78.13 *P. D. Berezin et al., Sov. J. Quant. Electron., vol. 3, No. 1, pp. 78 79, 1973, Electroopic Switching in Oriented Liquid Crystal Films .14P. D. Berezin et al., Sov. J. Quant. Electron., vol. 3, No. 1, pp. 78-79, 1973, "Electroopic Switching in Oriented Liquid-Crystal Films".15 *P.J. Bos et al., Mol. Cryst. Liq. Cryst., vol. 113, pp. 329 339, 1984, The pi Cell: A Fast Liquid Crystal Optical Switching Device .16P.J. Bos et al., Mol. Cryst. Liq. Cryst., vol. 113, pp. 329-339, 1984, "The pi-Cell: A Fast Liquid-Crystal Optical-Switching Device".17S. Palmer; Applied Optics, May 1, 1996, vol. 35, No. 3, "Optical Angular Properties of Twisted-Nematic Liquid-Crystal Cells with Twist Angles of Less Than 90�".18 *S. Palmer; Applied Optics, May 1, 1996, vol. 35, No. 3, Optical Angular Properties of Twisted Nematic Liquid Crystal Cells with Twist Angles of Less Than 90 .19 *S. Pancharatnam, Proc. Ind. Acad Sci., vol. 41a, pp. 130 136, 1955, Achromatic Combinations of Birefringent Plates, Part I .20S. Pancharatnam, Proc. Ind. Acad Sci., vol. 41a, pp. 130-136, 1955, "Achromatic Combinations of Birefringent Plates, Part I".21 *S. Pancharatnam, Proc. Ind. Acad Sci., vol. 41a, pp. 137 144, 1955, Achromatic combinations of Birefringent Plates, Part II .22S. Pancharatnam, Proc. Ind. Acad Sci., vol. 41a, pp. 137-144, 1955, "Achromatic combinations of Birefringent Plates, Part II".23Saito, S.: "Viewing Angle Characteristics of ECB Type Multi-Colored LCD with Non-Twist", Molecular Crystals and Liquid Crystals, 1986, UK, vol. 138, No. 1-4, pp. 187-210.24 *Saito, S.: Viewing Angle Characteristics of ECB Type Multi Colored LCD with Non Twist , Molecular Crystals and Liquid Crystals, 1986, UK, vol. 138, No. 1 4, pp. 187 210.25 *Search Report for Application No. 97304496.9; Dated Apr. 16, 1998.26 *Search Report for Application No. GB 9613364.0; Dated Sep. 26, 1996.27Takahashi T. et al.: "Improvement of Multiplexiability of Double-Layered Homogeneously Oriented Nematic LCD by Simultaneously Driving Method" Electronics and Communications in Japan, Part 2 (Electronics), Dec. 1991, USA, vol. 74, No. 12, pp. 49-58.28 *Takahashi T. et al.: Improvement of Multiplexiability of Double Layered Homogeneously Oriented Nematic LCD by Simultaneously Driving Method Electronics and Communications in Japan, Part 2 (Electronics), Dec. 1991, USA, vol. 74, No. 12, pp. 49 58.29 *U.S. Application Ser. No. 08/880,456, filed Jun. 23, 1997 in the name of Tillin et al.30 *U.S. Patent Application Ser. No. 08/880,456; Filed Jun. 24, 1997.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6307607 *Dec 21, 1999Oct 23, 2001Philips Electronics North America CorporationReflective liquid crystal display with integrated compensation for skew angle rotation and birefringence effectsUS6433849 *Jan 12, 2000Aug 13, 2002International Business Machines CorporationHigh reflectivity bistable liquid crystal displayUS6606181Nov 27, 2001Aug 12, 2003Optellios, Inc.Optical power limiting controlUS6801285 *Jan 14, 2003Oct 5, 2004Microdisplay CorporationThin cell gap microdisplays with optimum optical propertiesUS7956966 *Feb 26, 2007Jun 7, 2011Lg Chem, Ltd.Very thin achromatic quarter wave film laminate for transflective LCD and method for producing the same* Cited by examinerClassifications U.S. Classification349/123, 349/136, 349/128International ClassificationG02F1/1347, G02F1/139, G02F1/137, G02F1/1335, G02F1/1337, G02F1/133Cooperative ClassificationG02F1/1396, G02F1/13471, G02F1/1395European ClassificationG02F1/139T, G02F1/139E2, G02F1/1347ALegal EventsDateCodeEventDescriptionNov 10, 1997ASAssignmentOwner name: SHARP KABUSHIKI KAISHA, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TILLIN, MARTIN DAVID;TOWLER, MICHAEL JOHN;REEL/FRAME:008802/0547Effective date: 19970819Apr 8, 2004FPAYFee paymentYear of fee payment: 4Apr 25, 2008FPAYFee paymentYear of fee payment: 8Apr 11, 2012FPAYFee paymentYear of fee payment: 12RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services