Lg Chem, Ltd

Yoon Bin Lim

Jung Ho Jo

Sang Mi Lee

Sung Joon Min

Jun Young Yoon

Soon Ho Kwon

Hyeong Seuk Yun

Kichul Koo

Seongku Kim

Tae Seob Lee

Woo Han Kim

Se Jeong Kim

Seung Joon Lim

Gieun Park

Jae Gu Lim

The present disclosure relates to a poly(amide-imide) copolymer in which each of at least one of imide repeating units and at least one of amide repeating units is substituted with a functional group including Chemical Formula 1, wherein, Ris hydrogen or an alkyl group having 1 to 10 carbon atoms, and L is a single bond or an alkylene having 1 to 10 carbon atoms, and a composition and a polymer film comprising the same.

Poly(amide-imide) copolymer, composition and polymer film comprising thereof

The present invention relates to a polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent containing the same, a liquid crystal aligning film formed from the liquid crystal alignment agent, and a liquid crystal display device containing the liquid crystal aligning film.

Polymer for liquid crystal alignment agent, liquid crystal alignment agent comprising the same, and liquid crystal alignment film and liquid crystal display device using the same

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Daejeon, South Korea

Yoon Bin Lim