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US 11,733,444 B2Granted
Method for manufacturing polarizing plate and adhesive composition for polarizing plate
AssigneeShanjin Optoelectronics (Suzhou) Co., Ltd.
InventorsSu Youn Choi, Jin Woo Kim, Yoonkyung Kwon, Dong Uk Kim
Life of this patent
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Abstract
The present specification relates to a method for manufacturing a polarizing plate, and an adhesive composition for a polarizing plate.
Claims12
A method for manufacturing a polarizing plate, the method comprising:
- preparing a polarizer;
- providing an adhesive composition on one surface of each of a first protective film and a second protective film;
- laminating the first protective film on one surface of the polarizer, and laminating the second protective film on the other surface of the polarizer;
- and
- adhering the first protective film, the polarizer and the second protective film by curing the adhesive composition through irradiating active energy rays on the first protective film side,
- wherein the adhesive composition provided on one surface of the second protective film comprises a photoinitiator and a photosensitizer represented by the following Chemical Formula 2:
- in Chemical Formula 2,
- Ra and Rb are the same as or different from each other, and are hydrogen;
- deuterium;
- or a substituted or unsubstituted alkyl group;
- Rc is a substituted or unsubstituted alkyl group;
- m is an integer of 0 to 4;
- n is an integer of 0 to 2;
- when m is 2 or greater, Ra the same as or different from each other;
- when n is 2, Rb are the same as or different from each other;
- the active energy rays have a maximum wavelength range of 380 nm to 420 nm;
- light transmittance of the first protective film for the active energy rays is higher than light transmittance of the second protective film for the active energy rays.
14 more elements
Dependencies are inferred from the claim text.