Optical alignment polymer and optical alignment composition having the same
AssigneeSamsung Display Devices Co., Ltd.
InventorsHan-sung Yu, Kwan-young Han, Seong-han Yu, Yong-kyu Jang, Byung-hoon Chae, Jang-kun Song
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Abstract
An optical alignment polymer and an optical alignment composition having the same are provided. The optical alignment polymer has a compound selected from the group consisting of poly(maleimide), poly(vinyl acetal), poly(phenylene oxide), poly(maleimide styrene) and their derivatives in its main chain, and a photosensitive group at its side chain. The optical alignment polymer can have high level of optical alignment performance and high thermal stability.
Claims20
An optical alignment polymer having in its main chain a compound selected from the group consisting of poly(maleimide), poly(vinyl acetal), poly(phenylene oxide), poly(maleimide styrene) and their derivatives, and the polymer having a photosensitive group at a side chain.
An optical alignment composition comprising a first polymer having a compound selected from the group consisting of poly(maleimide), poly(vinyl acetal), poly(phenylene oxide), poly(maleimide styrene) and their derivatives at a main chain, and having a photosensitive group at a side chain;
- and a second polymer having a long-chain alkyl group at a side chain, in a weight ratio of between 99:1 and 80:20.
An optical alignment composition comprising first polymer having a compound selected from the group consisting of poly(maleimide), poly(vinyl acetal), poly(phenylene oxide), poly(maleimide styrene) and their derivatives at a main chain, and having a photosensitive group at a side chain, and a third polymer having a liquid crystal group at a side chain, in a weight ratio of between 99:1 and 80:20.
Dependencies are inferred from the claim text.