C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 19/54 (2006.01) G02F 1/1333 (2006.01)
Patent
CA 2299347
A liquid crystal device has, as electro-optically active material, a liquid crystal composite including a containment medium, a liquid crystal composition dispersed in the containment medium, and an organotrialkoxysilane additive having structure (I) in which R1 and R2 are independently H, F, Cl, OCH3, OCH2CH3, or a C1 to C8 alkyl, aryl or arylalkyl group: each R3 is independently a C1 to C8 alkyl, aryl, or arylalkyl; m is an integer from 0 to 4; and n is an integer from 2 to 4. The composite can be used for making liquid crystal displays having improved electro-optical properties, in particular a low operating field.
Dispositif à cristaux liquides qui possède, en tant que matériau à action électrooptique, un composite de cristaux liquides comportant un milieu de confinement, une composition de cristaux liquides dispersée dans le milieu de confinement, et un additif organotrialcoxysilane de structure (I) dans laquelle R1 et R2 sont indépendamment H, F, Cl, OCH3, OCH2CH3 ou un groupe alkyle, aryle ou aralkyle C1 à C8, chaque R3 est indépendamment un alkyle, aryle ou aralkyle C1 à C8, m est un nombre entier de 0 à 4, et n est un nombre entier de 2 à 4. Ledit composite peut être utilisé pour fabriquer des affichages à cristaux liquides possédant des propriétés électrooptiques améliorées, en particulier un champ de fonctionnement faible.
Marks & Clerk
Tyco Electronics Corporation
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