Method for producing polarizing plate, polarizing plate,...

Details Method for producing polarizing plate, polarizing plate,... Method for producing polarizing plate, polarizing plate,...

2007-11-13

2009-08-18

Fineman, Lee (Department: 2872)

Optical: systems and elements

Polarization without modulation

Depolarization

Reexamination Certificate

active

07576913

ABSTRACT:
A method for producing a polarizing plate of the invention comprises bonding a transparent protective film (A) and another transparent protective film (B) to one side of a polarizer and to another side of the polarizer, respectively, with an adhesive, wherein the polarizer has a moisture content of 15 to 30% by weight, the transparent protective film (A) is made of the same quality material as the transparent protective film (B), the transparent protective film (A) is thicker than the transparent protective film (B), and the transparent protective film (A) has a moisture content higher than that of the transparent protective film (B). The polarizing plate obtained by the production method can suppress curling.

REFERENCES:
patent: 2006/0082708 (2006-04-01), Nagase et al.
patent: 2006/0268200 (2006-11-01), Ohgaru et al.
patent: 2007/0081115 (2007-04-01), Wada et al.
patent: 2007/0195226 (2007-08-01), Aminaka et al.
patent: 2009/0002821 (2009-01-01), Okano et al.
patent: 2004-117482 (2004-04-01), None

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