Transparent protective film for polarizing plate, process...

Details Transparent protective film for polarizing plate, process... Transparent protective film for polarizing plate, process...

2007-04-24

2007-04-24

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S122000

Reexamination Certificate

active

10131565

ABSTRACT:
A transparent protective film for polarizing plate being provided via an adhesive layer on at least one surface of a polarizer, wherein a ratio of constituent elements (oxygen ratio/carbon ratio) on the polarizer-adhering surface of the transparent protective film for polarizing plate, which is determined by X-ray photoelectron spectrometry, is larger than 0.75 has facilitate adhesion surface and no deformation without problems attributable to saponification.

REFERENCES:
patent: 4808468 (1989-02-01), Nojiri et al.
patent: 6068794 (2000-05-01), Kobayashi et al.
patent: 6413641 (2002-07-01), Yamasaki et al.
patent: 6507379 (2003-01-01), Yokoyama et al.
patent: 6512562 (2003-01-01), Kobayashi et al.

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