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.YOKOHAMA204

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Garvin, Hugh L Malibu, CA 10 504
Miller, Leroy J West Hills, CA 30 468
Robinson, Klaus Woodland Hills, CA 8 69
Smith, Jr Willis H Newbury Park, CA 11 239

Cited Art Landscape

Patent Info (Count) # Cites Year
 
UNITED SOLAR SYSTEMS CORP. (1)
* 4,728,406 Method for plasma - coating a semiconductor body 182 1986
 
JDS UNIPHASE CORPORATION (1)
* 4,851,095 Magnetron sputtering apparatus and process 195 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 27 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
 
SEIKO EPSON CORPORATION (1)
* 6,690,032 Electro-optical device and method of manufacture thereof, and electronic instrument 7 2001
 
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
 
EASTMAN KODAK COMPANY (8)
6,648,475 Method and apparatus for increasing color gamut of a display 53 2002
6,736,514 Imaging apparatus for increased color gamut using dual spatial light modulators 7 2002
6,769,772 Six color display apparatus having increased color gamut 54 2002
6,802,613 Broad gamut color display apparatus using an electromechanical grating device 25 2002
6,807,010 Projection display apparatus having both incoherent and laser light sources 37 2003
6,902,277 Housing for a spatial light modulator 3 2004
6,863,402 Apparatus for displaying a color image from digital data 39 2004
6,857,748 Apparatus for displaying a color image from digital data 11 2004
 
SONY CORPORATION (10)
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 4 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
7,023,512 Spatially patterned polarization compensator 16 2005
6,982,773 Exposure system for creating a patterned polarization compensator 3 2005
7,184,115 Display apparatus with two polarization compensators 7 2005
7,221,420 Display with a wire grid polarizing beamsplitter 19 2006
 
MOXTEK, INC. (14)
7,306,338 Image projection system with a polarizing beam splitter 10 2005
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 9 2007
7,813,039 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 10 2009
8,248,696 Nano fractal diffuser 0 2009
8,027,087 Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid 11 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
 
NORTHROP GRUMMAN SYSTEMS CORPORATION (1)
6,174,405 Liquid crystal polymer in situ coating for co-cured composite structure 6 1998
* Cited By Examiner