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Patent Searching and Data


Title:
光学補償シートの製造方法及び装置
Document Type and Number:
Japanese Patent JP4052558
Kind Code:
B2
Abstract:
A film sheet which has a polymer layer formed of a coating solution is drawn from a balk roll and transported toward a rubbing apparatus. Thereby, first and second blowers sequentially disposed respectively apply to the polymer layer an air of temperature 45±2° C. and humidity 50%-60%, and an air of temperature 25±1° C. and humidity 30%-35%. Thus, damages which occurred in transporting and rolling the film sheet are removed. Thereafter, a rubbing action is performed to the film sheet such that the polymer layer has alignment. Then a liquid crystal layer is formed on the polymer layer, to obtain an optical compensation film.

Inventors:
Hidetomo Ito
Application Number:
JP2002137667A
Publication Date:
February 27, 2008
Filing Date:
May 13, 2002
Export Citation:
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Assignee:
FUJIFILM Corporation
International Classes:
G02B5/30; B29B13/02; B29C39/18; B29C59/02; B32B38/16; G02F1/13363; B29C35/08; B29L7/00
Domestic Patent References:
JP8152515A
JP8101380A
JP9073016A
JP1302225A
JP11024080A
JP9005748A
Attorney, Agent or Firm:
Kazunori Kobayashi
Shigeru Iijima
Kobayashi Hideyoshi