CELLULOSE ESTER FILM, PROCESS FOR MANUFACTURING THE SAME POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

Title:

CELLULOSE ESTER FILM, PROCESS FOR MANUFACTURING THE SAME POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

Document Type and Number:

Japanese Patent JP2002187960

Kind Code:

A

Abstract:

To prepare a cellulose ester film wherein the angle of visibility may be easily improved, to provide a polarizing plate using this film and a liquid crystal display device wherein the angle of visibility may be improved with a simple structure.

An optically biaxial cellulose ester film is obtained by casting a cellulose ester dope liquid in a casting support, releasing a web (film) from the casting support and at least monoaxially stretching the web by a factor of from 1.0 to 4.0 while the amount of a residual solvent within the web is ≤100 mass%, specifically from 10 to 100 mass%.

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Inventors:

KUZUHARA NORIYASU
KUBO NOBUO
UMEDA HIRONORI
TAKIYAMA NOBUYUKI
YAJIMA TAKATOSHI
TASAKA MASAYUKI

Application Number:

JP2001270183A

Publication Date:

July 05, 2002

Filing Date:

September 06, 2001

Export Citation:

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Assignee:

KONISHIROKU PHOTO IND

International Classes:

G02B5/30; B29C41/12; B29C41/50; B32B23/08; B32B23/20; C08J5/18; G02F1/1335; B29K1/00; B29L7/00; (IPC1-7): C08J5/18; B29C41/12; B29C41/50; B32B23/08; B32B23/20; G02B5/30; G02F1/1335

Domestic Patent References:

JP2000111914A	2000-04-21
JP2000154261A	2000-06-06
JP2000053784A	2000-02-22

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