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Patent Searching and Data


Title:
POLARIZER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2020/153566
Kind Code:
A1
Abstract:
The present invention relates to a polarizer, a polarizing plate, and an image displaying device, wherein the orthogonal color value b is -1.0 or higher, and the ratio (A450/A700) between absorbance (A450) at the wavelength of 450 mm and absorbance (A700) at the wavelength of 700 mm is 2.5 or higher, so as to reduce the transmissivity of the blue light (a blue light source) wavelength band (of about 430 to 480 nm), thereby reducing the effect of blue light on a user. Further, the present invention relates to a method for manufacturing the polarizer.

Inventors:
CHOI YOON SEOK (KR)
PARK MIN KYU (KR)
PARK JOONG MAN (KR)
JO CHEON HEE (KR)
Application Number:
PCT/KR2019/011537
Publication Date:
July 30, 2020
Filing Date:
September 06, 2019
Export Citation:
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Assignee:
DONGWOO FINE CHEM CO LTD (KR)
International Classes:
G02B5/30; G02F1/1335
Foreign References:
JP2001311827A2001-11-09
KR20100084583A2010-07-26
JP2016173564A2016-09-29
KR20160091940A2016-08-03
KR20170045265A2017-04-26
Attorney, Agent or Firm:
DARAE LAW & IP, LLC (KR)
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