US 12,442,954 B2
Optical sheet and optical component
Satoshi Nishino, Tokyo (JP); and Hiroshi Oya, Tokyo (JP)
Assigned to SUMITOMO BAKELITE CO., LTD., Tokyo (JP)
Appl. No. 17/772,713
Filed by SUMITOMO BAKELITE CO., LTD., Tokyo (JP)
PCT Filed Oct. 26, 2020, PCT No. PCT/JP2020/040039
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/085357, PCT Pub. Date May 6, 2021.
Claims priority of application No. 2019-196802 (JP), filed on Oct. 29, 2019.
Prior Publication US 2023/0011467 A1, Jan. 12, 2023
Int. Cl. G02B 1/04 (2006.01); C09B 29/33 (2006.01); C09B 33/02 (2006.01); G02B 1/08 (2006.01); G02C 7/10 (2006.01); G02C 7/12 (2006.01); B29D 11/00 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01)
CPC G02B 1/04 (2013.01) [C09B 29/33 (2013.01); C09B 33/02 (2013.01); G02B 1/08 (2013.01); G02C 7/10 (2013.01); G02C 7/12 (2013.01); B29D 11/00644 (2013.01); B29D 11/0073 (2013.01); B29K 2023/086 (2013.01); B29K 2105/0032 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An optical sheet comprising:
a laminate including a polarizing layer containing at least one kind of a light absorbing agent and having a polarizing function, and a protective layer laminated on the polarizing layer,
wherein in the polarizing layer, a value of a* is 0 or more and 14 or less and a value of b* is 13.5 or more and 30 or less in an L*a*b* color system defined by JIS Z 8781-4, and
wherein in the optical sheet, a size of a Q Blue value defined by Australian Standard Australia/New Zealand Standard 1067-2016 is 0.70 or more.