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Title:
PROCESS FOR PRODUCING OPTICAL FILM WITH UNEVEN STRUCTURE, OPTICAL FILM, WIRE GRID POLARIZER, AND RETARDATION FILM
Document Type and Number:
WIPO Patent Application WO/2007/125857
Kind Code:
A1
Abstract:
A process for producing an optical film with uneven structure, in which a thin sheet provided with fine uneven structure on a large area is produced with high precision at high velocity; and, produced by the process and realizing high productivity and uniformity, an optical film, wire grid polarizer and retardation film. There is provided a process for producing an optical film with uneven structure, characterized by including the steps of applying a solution having a first resin dissolved in a solvent onto an endless belt or roll mold with uneven structure to thereby form a resin solution layer on the mold; before complete evaporation of the solvent from the resin solution layer, attaching the resin solution layer to a film support containing a second resin capable of absorbing the solvent of the resin solution; and before complete evaporation of the solvent from an optical film composed of the resin solution layer and the film support joined together, detaching the optical film from the mold.

Inventors:
SATO, Akira (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
佐藤 彰 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
OHMORI, Shigeto (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
大森 滋人 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
KOYAMA, Hirokazu (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
小山 博和 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
MIYAZAWA, Kazuhiro (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
宮澤 一宏 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
IWAGAKI, Masaru (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
岩垣 賢 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
Application Number:
JP2007/058724
Publication Date:
November 08, 2007
Filing Date:
April 23, 2007
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)
SATO, Akira (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
佐藤 彰 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
OHMORI, Shigeto (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
大森 滋人 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
KOYAMA, Hirokazu (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
小山 博和 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
MIYAZAWA, Kazuhiro (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
宮澤 一宏 (〒11 東京都日野市さくら町1番地コニカミノルタテクノロジーセンター株式会社内 Tokyo, 1918511, JP)
IWAGAKI, Masaru (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 1918511, JP)
International Classes:
B29C41/24; B29C41/30; C08J5/18; G02B5/30; B29K1/00; B29L7/00; B29L9/00; B29L11/00
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