Lg Chem, Ltd

Hye Ran Seong

Kyung Jun Kim

Dong Hyun Oh

Sang Woo Kim

Chan Hyo Park

Se Jin Shin

Jung Ho Jo

Kyoung Ho Ahn

Hye Won Jeong

Byung Hyun Lee

Yu Na Kim

Sang Kook Kim

Polyimide-based polymers and copolymers thereof are provided. Further provided is a positive type photoresist composition comprising at least one of the polyimide-based polymers and copolymers thereof as a binder resin. The photoresist composition exhibits high resolution, high sensitivity, excellent film characteristics and improved mechanical properties, which are required for the formation of semiconductor buffer coatings.

Polyimide-based polymers, copolymers thereof and positive type photoresist compositions comprising the same

The present invention relates to polyimide or precursor thereof represented by Chemical Formula 1 or 2 and a photosensitive resin composition including the same. The polyimide or precursor thereof are fabricated using diamine comprising polyalkyleneoxide. The photosensitive resin composition of the present invention has excellent light transmissivity, an excellent resolution, and excellent photo sensitivity and image forming performance. Further, the photosensitive resin composition has high adhesiveness with substrates, such as a silicon film, a silicon oxide film, and a metal film. In particular, an excellent film without failure, such as crack, can be formed.

Photosensitive polyimide and photosensitive resin composition comprising the same

Disclosed is a copolymer for liquid crystal alignment having a photoreactive group, a mesogen group, a thermosetting group, and a crosslinking group, a liquid crystal aligning layer including the copolymer for liquid crystal alignment, and a liquid crystal display including the liquid crystal aligning layer. Since the liquid crystal aligning layer has excellent thermal stability and no residual image, the liquid crystal aligning layer is usefully applied to the liquid crystal display.

Copolymer for liquid crystal alignment, liquid crystal aligning layer including copolymer for liquid crystal alignment, and liquid crystal display including liquid crystal aligning layer

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Daejeon, South Korea

Hye Ran Seong