POLYMERS FOR USE AS ALIGNMENT LAYERS IN LIQUID CRYSTAL DEVICES
申请人:ECSIBEO PPF2 AB
公开号:EP1636324A1
公开(公告)日:2006-03-22
US7575788B2
申请人:——
公开号:US7575788B2
公开(公告)日:2009-08-18
[EN] POLYMERS FOR USE AS ALIGNMENT LAYERS IN LIQUID CRYSTAL DEVICES<br/>[FR] POLYMERES DESTINES A ETRE UTILISES COMME COUCHES D'ALIGNEMENT DANS DES DISPOSITIFS A CRISTAUX LIQUIDES
申请人:ECSIBEO AB
公开号:WO2004113470A1
公开(公告)日:2004-12-29
The invention relates to a polymer for use as a surface-director alignment layer in a liquid crystal device, said polymer comprising a polymeric backbone and side-chains attached thereto, wherein the polymeric backbone lacks directly coupled ring structures, and each side-chain of at least some of the side-chains comprises at least two unsubstituted and/or substituted phenyls coupled via a coupling selected from the group consisting of a carbon-carbon single bond (-), a carbon-carbon double bond containing unit (-CH=CH-), a carbon-carbon triple bond containing unit (-C=-C-), a methylene eter unit (-CH2O-) , an ethylene eter unit (-CH2CH2O-), an ester unit (-COO-) and an azo unit (-N=N-), exhibits a permanent and/or induced dipole moment that in ordered phase provides dielectric anisotropy, and is attached to the polymeric backbone via at least two spacing atoms.
Polymers for use as alignment layers in liquid crystal devices
申请人:Komitov Lachezar
公开号:US20070088125A1
公开(公告)日:2007-04-19
The invention relates to a polymer for use as a surface-director alignment layer in a liquid crystal device, the polymer comprising a polymeric backbone and side-chains attached thereto, wherein the polymeric backbone lacks directly coupled ring structures, and each side-chain of at least some of the side-chains comprises at least two unsubstituted and/or substituted phenyls coupled via a coupling selected from the group consisting of a carbon-carbon single bond (—), a carbon-carbon double bond containing unit (—CH═CH—), a carbon-carbon triple bond containing unit (—C≡C—), a methylene ether unit (—CH
2
O—), an ethylene ether unit (—CH
2
CH
2
O—), an ester unit (—COO—) and an azo unit (—N═N—), exhibits a permanent and/or induced dipole moment that in ordered phase provides dielectric anisotropy, and is attached to the polymeric backbone via at least two spacing atoms.