Invention Grant
- Patent Title: Liquid crystal display device and manufacturing method thereof
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Application No.: US14678381Application Date: 2015-04-03
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Publication No.: US09868907B2Publication Date: 2018-01-16
- Inventor: Masaki Matsumori , Yasushi Tomioka , Noboru Kunimatsu
- Applicant: JAPAN DISPLAY INC. , Panasonic Liquid Crystal Display Co., Ltd.
- Applicant Address: JP Tokyo JP Hyogo
- Assignee: Japan Display Inc.,Panasonic Liquid Crystal Display Co., Ltd.
- Current Assignee: Japan Display Inc.,Panasonic Liquid Crystal Display Co., Ltd.
- Current Assignee Address: JP Tokyo JP Hyogo
- Agency: Typha IP LLC
- Priority: JP2007-218859 20070824
- Main IPC: C09K19/56
- IPC: C09K19/56 ; G02F1/13 ; C08L33/24 ; C08L77/06 ; G02F1/137 ; G02F1/1337 ; G02F1/1343

Abstract:
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.
Public/Granted literature
- US20150210923A1 LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF Public/Granted day:2015-07-30
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