LIQUID CRYSTAL DEVICE AND OPTICAL HEAD DEVICE

PROBLEM TO BE SOLVED: To provide a liquid crystal device for receiving a blue laser beam with a wavelength of 390 nm to 500 nm which comprises an obliquely evaporated film and liquid crystal material which can function as a horizontally oriented film for a liquid crystal device, obtain a proper pre-...

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Bibliographic Details
Main Authors MITSUI NOBUKO, SENOO TOMONOBU
Format Patent
LanguageEnglish
Published 31.07.2008
Subjects
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
FREQUENCY-CHANGING
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Summary:PROBLEM TO BE SOLVED: To provide a liquid crystal device for receiving a blue laser beam with a wavelength of 390 nm to 500 nm which comprises an obliquely evaporated film and liquid crystal material which can function as a horizontally oriented film for a liquid crystal device, obtain a proper pre-tilt angle for liquid crystal molecules, and have an optically stable characteristic. SOLUTION: The liquid crystal device comprises a plurality of transparent substrates which sandwich a liquid crystal layer, and a horizontally oriented film on which a single inorganic material layer is obliquely evaporated on the side of each transparent substrate contacting the liquid crystal layer. Then hindered amine based compound is added to the liquid crystal material. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20070008559