US 11,852,908 B2
Flexible electrochromic device
Byeong Uk Ahn, Gyeonggi-do (KR); Yong Sang La, Gyeonggi-do (KR); Seong Hwan Lee, Gyeonggi-do (KR); Il Hwan Yoo, Gyeonggi-do (KR); and Seung Bae Oh, Gyeonggi-do (KR)
Assigned to SKC CO., LTD., Gyeonggi-Do (KR)
Filed by SKC CO., LTD., Gyeonggi-do (KR)
Filed on Jun. 7, 2021, as Appl. No. 17/340,616.
Claims priority of application No. 10-2020-0069913 (KR), filed on Jun. 9, 2020.
Prior Publication US 2021/0382342 A1, Dec. 9, 2021
Int. Cl. G02F 1/1333 (2006.01); G02F 1/155 (2006.01); G02F 1/153 (2006.01); E06B 9/24 (2006.01)
CPC G02F 1/1333 (2013.01) [G02F 1/153 (2013.01); G02F 1/155 (2013.01); E06B 9/24 (2013.01); E06B 2009/2464 (2013.01); G02F 1/133305 (2013.01); G02F 1/1533 (2013.01); G02F 2203/01 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A flexible electrochromic device, which comprises:
a first base layer;
a first barrier layer on the first base layer;
a light transmission variable structure on the first barrier layer;
a second barrier layer on the light transmission variable structure; and
a second base layer on the second barrier layer,
wherein the first barrier layer comprises a first-A barrier layer and a first-B barrier layer,
wherein the second barrier layer comprises a second-A barrier layer and a second-B barrier layer,
wherein one of the first-A barrier layer and the first-B barrier layer comprises a metal oxide or a metalloid oxide, and the other comprises a first metal nitride or a first metalloid nitride,
wherein one of the second-A barrier layer and the second-B barrier layer comprises the metal oxide or the metalloid oxide, and the other comprises a second metal nitride or a second metalloid nitride, and
wherein the moisture permeability of the first barrier layer is different from the moisture permeability of the second barrier layer.