US 11,719,981 B2
Optical device
Ji Hoon Park, Daejeon (KR); and Young Shin Lee, Daejeon (KR)
Assigned to LG Chem, Ltd.
Appl. No. 17/429,060
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Jan. 14, 2020, PCT No. PCT/KR2020/000664
§ 371(c)(1), (2) Date Aug. 6, 2021,
PCT Pub. No. WO2020/175794, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 10-2019-0021756 (KR), filed on Feb. 25, 2019.
Prior Publication US 2022/0128868 A1, Apr. 28, 2022
Int. Cl. G02F 1/1343 (2006.01); G02F 1/1335 (2006.01); G02F 1/1345 (2006.01); G02F 1/1337 (2006.01); G02F 1/1339 (2006.01); G02F 1/137 (2006.01); B60J 3/06 (2006.01)
CPC G02F 1/134309 (2013.01) [B60J 3/06 (2013.01); G02F 1/1339 (2013.01); G02F 1/13725 (2013.01); G02F 1/133531 (2021.01); G02F 1/1337 (2013.01); G02F 2202/04 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An optical device comprising:
an optical film, wherein the optical film comprises first and second base films disposed to face each other; and a light modulation layer between the first and second base films,
wherein a first electrode layer and a second electrode layer are formed on surfaces of the first and second base films respectively that face each other,
wherein each electrode layer comprises a first region configured to apply an electric field to the light modulation layer, and a second region configured to connect to an external power source to supply power to the first region for applying the electric field,
wherein the first region is a central compartment and the second region is a plurality of peripheral compartments surrounding the central compartment,
wherein at least one peripheral compartment among the plurality of peripheral compartments in the second region is a region A that is electrically connected to the first region via a passage structure, and at least one peripheral compartment among the plurality of peripheral compartments in the second region is a region B that is not electrically connected to the first region,
wherein the region A formed on the first base film and the region A formed on the second base film are disposed so as not to face each other, wherein each electrode layer is scribed to form the regions A and B.