US 12,337,583 B2
Optical laminate
Na Young Shin, Daejeon (KR); Kyun Il Rah, Daejeon (KR); Jin Seok Byun, Daejeon (KR); and Yeong Rae Chang, Daejeon (KR)
Assigned to Shanjin Optoelectronics (Suzhou) Co., LTD., (CN)
Appl. No. 17/598,134
Filed by Shanjin Optoelectronics (Suzhou) Co., Ltd., Jiangsu (CN)
PCT Filed Jan. 31, 2020, PCT No. PCT/KR2020/001460
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/204332, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 10-2019-0037455 (KR), filed on Mar. 29, 2019.
Prior Publication US 2022/0171111 A1, Jun. 2, 2022
Int. Cl. B32B 7/023 (2019.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); G02B 1/04 (2006.01); G02B 1/08 (2006.01); G02B 5/30 (2006.01)
CPC B32B 7/023 (2019.01) [B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/306 (2013.01); G02B 1/04 (2013.01); G02B 1/08 (2013.01); G02B 5/3033 (2013.01); B32B 2260/046 (2013.01); B32B 2264/1021 (2020.08); B32B 2264/2032 (2020.08); B32B 2264/301 (2020.08); B32B 2264/302 (2020.08); B32B 2307/416 (2013.01); B32B 2307/42 (2013.01); B32B 2307/71 (2013.01); B32B 2307/732 (2013.01); B32B 2457/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An optical laminate, comprising:
an optical functional layer; and
a reddening-resistant layer formed on at least one surface of the optical functional layer,
wherein the reddening-resistant layer is a void-containing layer or a laminate comprising the void-containing layer,
wherein the void-containing layer has a thickness of 350 nm or more, and 3000 nm or less,
wherein the reddening-resistant layer comprises a surface having a surface area ratio of 0.02 or more as measured by an atomic force microscope,
wherein the void-containing layer comprises a binder and hollow particles, and
wherein the hollow particles have a D10 particle diameter of 25 nm to 50 nm, a D50 particle diameter of 50 nm to 95 nm, and a D90 particle diameter of 100 nm to 200 nm in a weight cumulative curve of particle size distribution.