US Patent No: 5,620,755

Number of patents in Portfolio can not be more than 2000

Inducing tilted perpendicular alignment in liquid crystals

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Abstract

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A substrate (20) is treated prior to use to induce a near-perpendicular orientation of a liquid crystal director (26) relative to the substrate. A layer of silica (98) is deposited upon the substrate (20) by in-line magnetron sputtering as the substrate ( 20) is moved past the sputtering target (78), and the silica-coated substrate (20) is thereafter treated with a long-chain alcohol. The alcohol-treated substrate (20) is covered with a layer of liquid crystal (22), the director (26) of the liquid crystal (22) assuming a field-off state tilted about 1-3 degrees from the perpendicular toward an azimuthal direction (30) parallel to the direction of movement of the substrate (20) during deposition.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VICTOR COMPANY OF JAPAN, LTD.YOKOHAMA203

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Garvin, Hugh L Malibu, CA 10 509
Miller, Leroy J Canoga Park, CA 30 483
Robinson, Klaus Woodland Hills, CA 7 70
Smith, Jr Willis H Newbury Park, CA 11 244

Cited Art Landscape

Patent Info (Count) # Cites Year
 
United Solar Systems Corporation (1)
* 4,728,406 Method for plasma - coating a semiconductor body 185 1986
 
JDS UNIPHASE CORPORATION (1)
* 4,851,095 Magnetron sputtering apparatus and process 199 1988
 
VICTOR COMPANY OF JAPAN, LTD. (2)
* 4,464,134 Process for inducing perpendicular alignment of liquid crystals 9 1981
* 5,011,267 Method for tilted alignment of liquid crystals with improved photostability 11 1986
 
COMMISSARIAT A L'ENERGIE ATOMIQUE (1)
* 4,902,106 Bistable ferroelectric smectic liquid crystal display device having particular orientation film 28 1988
 
NORTEL NETWORKS LIMITED (1)
* 4,392,931 Reactive deposition method and apparatus 29 1981
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
IMAX CORPORATION (11)
6,648,475 Method and apparatus for increasing color gamut of a display 54 2002
6,736,514 Imaging apparatus for increased color gamut using dual spatial light modulators 8 2002
* 2003/0234,911 IMAGING APPARATUS FOR INCREASED COLOR GAMUT USING DUAL SPATIAL LIGHT MODULATORS 1 2002
6,769,772 Six color display apparatus having increased color gamut 54 2002
* 2004/0070,736 Six color display apparatus having increased color gamut 7 2002
6,807,010 Projection display apparatus having both incoherent and laser light sources 41 2003
* 2004/0090,679 Projection display apparatus having both incoherent and laser light sources 3 2003
6,863,402 Apparatus for displaying a color image from digital data 41 2004
6,857,748 Apparatus for displaying a color image from digital data 12 2004
* 2004/0207,821 Apparatus for displaying a color image from digital data 9 2004
* 2004/0207,820 Apparatus for displaying a color image from digital data 0 2004
 
JVC KENWOOD CORPORATION (2)
6,563,560 Apparatus and method of producing alignment layer for liquid crystal display 0 2002
6,771,341 Apparatus and method of producing alignment layer for liquid crystal display 1 2003
 
BOE TECHNOLOGY GROUP CO., LTD. (1)
* 6,690,032 Electro-optical device and method of manufacture thereof, and electronic instrument 9 2001
 
EASTMAN KODAK COMPANY (3)
6,802,613 Broad gamut color display apparatus using an electromechanical grating device 27 2002
* 2004/0075,817 Broad gamut color display apparatus using an electromechanical grating device 1 2002
6,902,277 Housing for a spatial light modulator 3 2004
 
SONY CORPORATION (15)
6,585,378 Digital cinema projector 67 2001
6,909,473 Display apparatus and method 35 2002
6,900,866 Modulation optical system with compensator 18 2003
7,061,561 System for creating a patterned polarization compensator 5 2004
* 2004/0179,158 Display with a wire grid polarizing beamsplitter 1 2004
6,954,245 Display apparatus with two polarization compensators 18 2004
6,897,926 Modulation optical system including a compensator conditioning oblique and skew rays 19 2004
* 2004/0218,125 Modulation optical system 1 2004
* 2004/0218,124 Display apparatus 0 2004
7,023,512 Spatially patterned polarization compensator 16 2005
6,982,773 Exposure system for creating a patterned polarization compensator 3 2005
* 2005/0128,392 Exposure system for creating a patterned polarization compensator 1 2005
7,184,115 Display apparatus with two polarization compensators 7 2005
7,221,420 Display with a wire grid polarizing beamsplitter 20 2006
* 2006/0203,164 Display with a wire grid polarizing beamsplitter 2 2006
 
MOXTEK, INC. (22)
7,306,338 Image projection system with a polarizing beam splitter 10 2005
* 2005/0206,847 Image projection system with a polarizing beam splitter 6 2005
* 2007/0297,052 Cube wire-grid polarizing beam splitter 15 2006
* 2007/0296,921 Projection display with a cube wire-grid polarizing beam splitter 9 2006
* 2008/0055,721 Light Recycling System with an Inorganic, Dielectric Grid Polarizer 9 2006
* 2008/0055,722 Optical Polarization Beam Combiner/Splitter with an Inorganic, Dielectric Grid Polarizer 9 2006
* 2008/0055,549 Projection Display with an Inorganic, Dielectric Grid Polarizer 10 2006
* 2008/0055,720 Optical Data Storage System with an Inorganic, Dielectric Grid Polarizer 9 2006
7,800,823 Polarization device to polarize and further control light 11 2006
7,630,133 Inorganic, dielectric, grid polarizer and non-zero order diffraction grating 17 2007
7,789,515 Projection device with a folded optical path and wire-grid polarizer 8 2007
8,755,113 Durable, inorganic, absorptive, ultra-violet, grid polarizer 1 2007
7,961,393 Selectively absorptive wire-grid polarizer 10 2007
* 2008/0316,599 Reflection-Repressed Wire-Grid Polarizer 17 2007
7,813,039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 11 2009
8,248,696 Nano fractal diffuser 0 2009
8,027,087 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 12 2010
8,611,007 Fine pitch wire grid polarizer 4 2011
8,922,890 Polarizer edge rib modification 0 2012
8,873,144 Wire grid polarizer with multiple functionality sections 0 2012
8,913,320 Wire grid polarizer with bordered sections 0 2012
8,913,321 Fine pitch grid polarizer 0 2012
 
VIDEOCON GLOBAL LIMITED (1)
6,426,786 Method of homeotropic alignment or tilted homeotropic alignment of liquid crystals by single oblique evaporation of oxides and liquid crystal display device formed thereby 16 1999
 
VICTOR COMPANY OF JAPAN, LTD. (1)
* 2004/0223,105 Apparatus and method of producing alignment layer for liquid crystal display 0 2004
 
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (1)
* 2007/0148,988 Fabrication method for alignment film 2 2006
 
NORTHROP GRUMMAN SYSTEMS CORPORATION (1)
6,174,405 Liquid crystal polymer in situ coating for co-cured composite structure 6 1998
* Cited By Examiner