Method of manufacturing polarizer, polarizer, polarizing...

Details Method of manufacturing polarizer, polarizer, polarizing... Method of manufacturing polarizer, polarizer, polarizing...

2007-11-27

2010-10-26

Peace, Rhonda S (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S098000, C349S194000

Reexamination Certificate

active

07821598

ABSTRACT:
A method of manufacturing a polarizer is provided that makes it possible to manufacture a polarizer prevented from curling even when a liquid is brought into contact with a hydrophilic polymer film by being sprayed. A method of manufacturing a polarizer includes a swelling step A for swelling a hydrophilic polymer film1by bringing it into contact with a swelling liquid2, a dyeing step B for dyeing the hydrophilic polymer film1by bringing it into contact with a dye liquid3containing a dichroic material, and a crosslinking/stretching step C for crosslinking the hydrophilic polymer film1by bringing it into contact with a crosslinking liquid4and further stretching it. In the method, the contact with the swelling liquid in the swelling step A is carried out in the gas phase by spraying the swelling liquid2onto both surfaces of the hydrophilic polymer film1.

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International Search Report of PCT/JP2007/072829, date of mailing Mar. 4, 2008.

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