OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

Title:

OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

Document Type and Number:

Japanese Patent JP2009096955

Kind Code:

A

Abstract:

To provide an ultraviolet ray absorbing optical film which has an ultraviolet part absorption characteristic sufficient for optical film use, hardly causes coloring upon heating processing and, further, is excellent in kneading property with cellulose acetate resin.

The optical film comprises: a specified ultraviolet ray absorbing polymer prepared by an ethylenically unsaturated monomer having a nitrogen-containing part structure in the molecule; and a specified ultraviolet absorber containing nitrogen. When the spectral absorption of wavelength region 290 to 400 nm is measured in a methylene chloride solvent, the maximum absorption wavelength of the ultraviolet absorber is shorter than that of the ultraviolet ray absorbing polymer by 5 nm or more.

Inventors:

KAWABE SATOMI
SUZUKI TAKAYUKI
SUZUKI TAKASHI

Application Number:

JP2007272327A

Publication Date:

May 07, 2009

Filing Date:

October 19, 2007

Export Citation:

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Assignee:

KONICA MINOLTA OPTO INC

International Classes:

C08L39/00; C08F226/00; C08J5/18; C08K5/3475; C08L33/14; C08L33/26; G02B5/30

Domestic Patent References:

JP2002169020A	2002-06-14
JPS63227575A	1988-09-21
JP2002226521A	2002-08-14

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