发明名称 FILM FOR DISPLAY UNIT AND METHOD FOR MANUFACTURING FILM
摘要 <P>PROBLEM TO BE SOLVED: To provide a film for a display unit, the optical quality level of which is so excellent that a flicker is not generated and to provide a method for manufacturing the film for the display unit. <P>SOLUTION: The film for the display unit is a film formed by a solution film-forming method. When thickness data are sampled from the film at intervals of 0.25 mm over a section of 300 mm, the thickness variation in an optional section of 5 mm is &le;0.5 &mu;m and a phase difference Rth of the thickness direction is &le;10 nm. The method for manufacturing the film for the display unit comprises the steps of: dissolving a polymer (A) in a solvent (B) to prepare a polymer solution (C); and forming the film from the polymer solution by the solution film-forming method. The viscosity of the polymer solution (C) at 25&deg;C is 7-600 Pa-s and the boiling point of the solvent (B) is 30-80&deg;C. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007178504(A) 申请公布日期 2007.07.12
申请号 JP20050374069 申请日期 2005.12.27
申请人 TORAY IND INC 发明人 TOSAKA KEITA;KUMAN TAKUYA;MORIYAMA HIDEKI;TSUKUDA AKIMITSU
分类号 G02B5/30;G02F1/1335 主分类号 G02B5/30
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