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Title:
PRODUCTION METHOD FOR PHASE CONTRAST FILM, AND POLARIZER AND LIQUID CRYSTAL DISPLAY DEVICE USING SAID FILM
Document Type and Number:
WIPO Patent Application WO/2011/065124
Kind Code:
A1
Abstract:
Disclosed is a production method for a phase contrast film that is resistant to high temperature and high humidity and has an excellent long-term storing capability. The phase contrast film production method is a method for producing, by means of solution casting, a phase contrast film having, as the main component, a thermoplastic resin with an elastic modulus of at least 1000 MPa at 80°C and 5% RH, wherein the elastic modulus (E1) at (Tg-10)°C and the elastic modulus (E2) at (Tg+10)°C satisfy formula (1) below, and is characterized by involving a process for extending the phase contrast film at an extension rate of 11 to 100% in the direction of conveyance of the film. (1) 500 ≧ E1/E2 ≧ 10

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Inventors:
TAKEBE Takashi (Inc. 2970, Ishikawa-machi, Hachioji-sh, Tokyo 05, 〒1928505, JP)
建部　隆 (〒05 東京都八王子市石川町２９７０番地コニカミノルタオプト株式会社内 Tokyo, 〒1928505, JP)
TAKIMOTO Masataka (Inc. 2970, Ishikawa-machi, Hachioji-sh, Tokyo 05, 〒1928505, JP)
瀧本　正高 (〒05 東京都八王子市石川町２９７０番地コニカミノルタオプト株式会社内 Tokyo, 〒1928505, JP)
Application Number:
JP2010/067223
Publication Date:
June 03, 2011
Filing Date:
October 01, 2010
Export Citation:
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Assignee:
Konica Minolta Opto, Inc. (2970, Ishikawa-machi Hachioji-sh, Tokyo 05, 〒1928505, JP)
コニカミノルタオプト株式会社 (〒05 東京都八王子市石川町２９７０番地 Tokyo, 〒1928505, JP)
TAKEBE Takashi (Inc. 2970, Ishikawa-machi, Hachioji-sh, Tokyo 05, 〒1928505, JP)
建部　隆 (〒05 東京都八王子市石川町２９７０番地コニカミノルタオプト株式会社内 Tokyo, 〒1928505, JP)
TAKIMOTO Masataka (Inc. 2970, Ishikawa-machi, Hachioji-sh, Tokyo 05, 〒1928505, JP)
International Classes:
G02B5/30; B29C41/24; B29C55/06; C08L33/04; G02F1/13363
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