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Title:
光学フィルム及びその製造方法、光学積層体並びに液晶表示装置
Document Type and Number:
Japanese Patent JPWO2020066899
Kind Code:
A1
Abstract:
ノルボルネン系重合体を含む熱可塑性ノルボルネン系樹脂で形成された光学フィルムであって、熱可塑性ノルボルネン系樹脂のガラス転移温度Ｔｇが式（１）を満たし、熱可塑性ノルボルネン系樹脂にＴｇ＋１５℃で１．５倍に自由端一軸延伸を施した場合に発現する複屈折ΔｎＲが式（２）を満たし、光学フィルムの厚み方向のレターデーションＲｔｈ及び光学フィルムの厚みｄが式（３）を満たす、光学フィルム。（１）Ｔｇ≧１１０℃（２）ΔｎＲ≧０．００２５（３）Ｒｔｈ／ｄ≧３．５×１０−３

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Inventors:
Hiroya Nishioka
Kazuya Suda
Kodenji Temple
Application Number:
JP2020549125A
Publication Date:
October 07, 2021
Filing Date:
September 20, 2019
Export Citation:
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Assignee:
Zeon Corporation
International Classes:
G02B5/30; B29C41/12; B29C41/36; B29C48/00; C08F32/04; G02F1/1335; G02F1/13363
Domestic Patent References:
JP2010033080A2010-02-12
JP2004219825A2004-08-05
JP2003270435A2003-09-25
JP2007226109A2007-09-06
Foreign References:
WO2017150375A12017-09-08
WO2003107048A12003-12-24
US20170336675A12017-11-23
Attorney, Agent or Firm:
Sakai International Patent Office



 
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