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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Patent Owner(s)

Patent OwnerAddressTotal Patents
VICTOR COMPANY OF JAPAN, LTD.YOKOHAMA1689

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Garvin, Hugh L Malibu, CA 10 482
Miller, Leroy J West Hills, CA 30 449
Robinson, Klaus Woodland Hills, CA 8 65
Smith, Jr Willis H Newbury Park, CA 11 226

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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 26 1988
 
JDS UNIPHASE CORPORATION (1)
4,851,095 Magnetron sputtering apparatus and process 190 1988
 
NORTEL NETWORKS LIMITED (1)
4,392,931 Reactive deposition method and apparatus 29 1981
 
UNITED SOLAR SYSTEMS CORP. (1)
4,728,406 Method for plasma - coating a semiconductor body 181 1986

Patent Citation Ranking

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JVC KENWOOD CORPORATION (2)
6,563,560 Apparatus and method of producing alignment layer for liquid crystal display 0 2002
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NORTHROP GRUMMAN SYSTEMS CORPORATION (1)
6,174,405 Liquid crystal polymer in situ coating for co-cured composite structure 6 1998
 
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VIDEOCON GLOBAL LIMITED (1)
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