Liquid crystal-soluble particle, method for manufacturing the same and liquid crystal device element
申请人:Kobayashi Shunsuke
公开号:US20050079296A1
公开(公告)日:2005-04-14
A LCD device element of frequency modulation mode enables high speed on and off control of an electro-optical response by switching the frequency of applied electric field. The LCD device element is capable of changing a frequency modulation range freely. The LCD device element has conductive layers between two parallel substrates; liquid crystal (LC) alignment layers with pre-tilt angle on the conductive layers; and a LC layer between the two liquid crystal alignment layers. LC soluble particles nanoparticles composing a core and a liquid crystal molecules or like molecules on its periphery), are in the LC layer. A control circuit applies voltage while modulating frequency on the conductive layer for varying light transmittance of the LC layer. Under a constant voltage, an electro-optical response is turned on by switching the frequency from low to high frequency and is turned off by switching the frequency from high to low frequency. The electro-optical response is varied also by varying voltage.
Acrylic acid derivative compounds and polymeric liquid crystal obtained by polymerizing the same
申请人:Asahi Glass Company, Limited
公开号:US06562259B1
公开(公告)日:2003-05-13
The present invention provides a photopolymerizable liquid crystal monomer having high durability, a low melting point and an enantiotropic property.
The photopolymerizable liquid crystal monomer is a 4-(4-(alkyloxycarbonyloxy)benzoyloxy)phenyl acrylate represented by the following formula A [wherein Ph is a 1,4-phenylene group, and R is an alkyl group]:
CH2═CHCOO—Ph—OCO—Ph—OCOO—R Formula A
Further, the present invention provides a polymer liquid crystal obtained by polymerizing a composition containing the monomer.
Further, the present invention provides an optical element employing the polymer liquid crystal, and an optical head employing the optical element as a polarizing hologram element.