Title:
MANUFACTURING METHOD OF DOUBLE REFRACTION FILM
Document Type and Number:
Japanese Patent JP3929046
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a thin double refraction film, which includes a liquid crystal compound double refraction layer and another double refraction layer, employing a small number of processes.
SOLUTION: In the method, a non-liquid crystal polymer double refraction layer that is orientation processed is used as an orientation layer for the liquid crystal compound. In the method, a process to separately prepare for an orientation layer is eliminated, another orientation layer is not required and the total thickness of the film is made thinner.
Inventors:
Hiroyuki Yoshimi
Yuichi Nishikoji
Nana Murakami
Hayashi Masatake
Yuichi Nishikoji
Nana Murakami
Hayashi Masatake
Application Number:
JP2003117462A
Publication Date:
June 13, 2007
Filing Date:
April 22, 2003
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
G02B5/30; B29C55/02; G02F1/1335; G02F1/13363; B29L7/00; B29L9/00; (IPC1-7): G02B5/30; B29C55/02; G02F1/1335; G02F1/13363; //B29L7:00; B29L9:00
Domestic Patent References:
| JP200290527A |
Attorney, Agent or Firm:
Koichiro Tsujimaru