Liquid crystal display device and manufacturing method thereof

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United States of America Patent

PATENT NO 9868907
SERIAL NO

14678381

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Abstract

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An IPS type liquid crystal display device superior in mass productivity and improved in image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment by the liquid orientation control film and realizing stable alignment of liquid crystals comprises: a pair of substrates, at least one which is transparent; a liquid crystal layer disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements connected to the group of electrodes; and an orientation control film disposed on at least one of the pair of substrates, wherein said orientation control film is made of a photosensitive polyimide and a polyamide acid ester and is given orientation control ability by being irradiated with substantially linearly polarized light.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA2050 W 190TH STREET SUITE 450 TORRANCE CA 90504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kunimatsu, Noboru Chiba, JP 149 845
Matsumori, Masaki Tokai, JP 55 524
Tomioka, Yasushi Hitachinaka, JP 218 1702

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