	US 12,077,669 B2
	Optical member and optical display device comprising same
Sung Hak Choi, Suwon-si (KR); and Jae Sun Han, Suwon-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Appl. No. 17/914,719
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
PCT Filed Mar. 26, 2021, PCT No. PCT/KR2021/003782 § 371(c)(1), (2) Date Sep. 26, 2022, PCT Pub. No. WO2021/194305, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 10-2020-0037164 (KR), filed on Mar. 26, 2020; and application No. 10-2021-0039564 (KR), filed on Mar. 26, 2021.
Prior Publication US 2023/0348725 A1, Nov. 2, 2023
Int. Cl. C08K 5/55 (2006.01); C08K 5/3417 (2006.01); C08K 5/3472 (2006.01); C08K 5/353 (2006.01); C09B 67/20 (2006.01); C09B 67/22 (2006.01); G02B 5/00 (2006.01)

CPC C09B 67/0063 (2013.01) [C08K 5/3417 (2013.01); C08K 5/3472 (2013.01); C08K 5/353 (2013.01); C08K 5/55 (2013.01); C09B 67/0033 (2013.01); G02B 5/003 (2013.01); C08K 2201/014 (2013.01)]

18 Claims

1. An optical member comprising: a base film; and a light transmission control layer stacked on a lower surface of the base film,

wherein the light transmission control layer contains dyes or a dye mixture comprising at least one selected from among a first dye having a maximum absorption wavelength of about 540 nm to about 630 nm, a second dye having a maximum absorption wavelength of about 390 nm to about 470 nm, a third dye having a maximum absorption wavelength of about 480 nm to about 530 nm, and a fourth dye having a maximum absorption wavelength of about 640 nm to about 760 nm; and a resin having a hydroxyl value (OH value) of 5 mgKOH/g or less.