US 11,680,443 B2
Variable transmittance film and smart window including same
Nam Seok Bae, Daejeon (KR); Yong Goo Son, Daejeon (KR); Seung Heon Lee, Daejeon (KR); Taegyun Kwon, Daejeon (KR); and Youngsik Yoon, Daejeon (KR)
Assigned to LG Chem, Ltd.
Appl. No. 16/962,682
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Apr. 19, 2019, PCT No. PCT/KR2019/004755
§ 371(c)(1), (2) Date Jul. 16, 2020,
PCT Pub. No. WO2019/203612, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 10-2018-0046381 (KR), filed on Apr. 20, 2018; and application No. 10-2018-0046395 (KR), filed on Apr. 20, 2018.
Prior Publication US 2020/0362623 A1, Nov. 19, 2020
Int. Cl. E06B 9/24 (2006.01); G02F 1/1339 (2006.01); G02F 1/1347 (2006.01); G02F 1/1333 (2006.01); G02F 1/1681 (2019.01); G02F 1/1334 (2006.01)
CPC E06B 9/24 (2013.01) [G02F 1/13394 (2013.01); G02F 1/13476 (2013.01); G02F 1/133377 (2013.01); E06B 2009/2464 (2013.01); G02F 1/1334 (2013.01); G02F 1/1681 (2019.01); G02F 2201/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A variable transmittance film comprising:
a first electrode substrate and a second electrode substrate which are provided to face each other; and
a liquid receiving layer which is provided between the first electrode substrate and the second electrode substrate, wherein the liquid receiving layer comprises a liquid substance, and a partition wall pattern that divides the liquid substance into two or more spaces,
wherein at least a part of the partition wall pattern comprises a passageway region that connects adjacent spaces,
wherein an entirety of one surface of the partition wall pattern, comprising the passageway region, adjoins the first electrode substrate, and an entirety of another surface of the partition wall pattern, which is opposite to the one surface, except for the passageway region, adjoins the second electrode substrate, and
wherein a thickness of the passageway region is 0.05 times to 0.95 times a thickness of the partition wall pattern.