Invention Grant
- Patent Title: Method for producing liquid crystal alignment film and liquid crystal display element using same
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Application No.: US15027141Application Date: 2014-09-30
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Publication No.: US10423033B2Publication Date: 2019-09-24
- Inventor: Fumiaki Kodera , Kunihiko Kotani , Kazunori Maruyama , Yutaka Kadomoto , Masanao Takashima , Hiroshi Hasebe , Yoshitaka Saito
- Applicant: DIC CORPORATION
- Applicant Address: JP Tokyo
- Assignee: DIC CORPORATION
- Current Assignee: DIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Westermann, Hattori, Daniels & Adrian, LLP
- Priority: JP2013-207318 20131002
- International Application: PCT/JP2014/076132 WO 20140930
- International Announcement: WO2015/050132 WO 20150409
- Main IPC: G02F1/1337
- IPC: G02F1/1337 ; G02F1/1341

Abstract:
[Problem] The purpose of the present invention is to provide a method for developing a large anchoring energy by simple processes. [Solution] There is provided a method for manufacturing a liquid crystal alignment film, comprising: a process (I) of mixing a solvent with a photoresponsive polymer to prepare a photoresponsive polymer solution; a process (II) of coating the photoresponsive polymer solution on a substrate, followed by drying at 50 to 100° C. for 1 to 3 minutes and then drying at 120° C. to 180° C. for 5 to 75 minutes to form a coating film; and a process (III) of adjusting a temperature of the coating film while the coating film is irradiated with a light of 200 to 350 nm to 40° C. to 100° C.
Public/Granted literature
- US20160231626A1 A LIQUID CRYSTAL ALIGNMENT FILM AND A LIQUID CRYSTAL DISPLAY ELEMENT USING THE SAME Public/Granted day:2016-08-11
Information query
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