US 12,263,724 B2
Antireflective switchable glass construction
Michael Bard, Wadern (DE); Olivier Farreyrol, Wasserbilig (LU); Christina Hill, Welschbilig (DE); and Yu Matsuda, Nashville, TN (US)
Assigned to ACR II GLASS AMERICA INC., Nashville, TN (US)
Appl. No. 17/282,273
Filed by ACR II GLASS AMERICA INC., Nashville, TN (US)
PCT Filed Oct. 3, 2019, PCT No. PCT/US2019/054396
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/072714, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/795,173, filed on Jan. 22, 2019.
Claims priority of provisional application 62/741,078, filed on Oct. 4, 2018.
Prior Publication US 2021/0387513 A1, Dec. 16, 2021
Int. Cl. B60J 3/04 (2006.01); B32B 17/10 (2006.01); B60J 1/00 (2006.01); C03C 17/36 (2006.01); G02F 1/1334 (2006.01)
CPC B60J 3/04 (2013.01) [B32B 17/10036 (2013.01); B32B 17/10321 (2013.01); B32B 17/10504 (2013.01); B32B 17/10761 (2013.01); B60J 1/001 (2013.01); C03C 17/3644 (2013.01); G02F 1/1334 (2013.01); C03C 2217/73 (2013.01); C03C 2217/948 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A switchable laminated glass construction, comprising:
a first glass substrate;
a second glass substrate;
a switchable functional film between the first and second glass substrates, the switchable functional film comprising:
a switchable material layer,
a first polymer substrate formed with a first transparent conductive coating, wherein the first polymer substrate is between the first glass substrate and the switchable material layer, and
a second polymer substrate formed with a second transparent conductive coating, wherein the second polymer substrate is between the second glass substrate and the switchable material layer;
at least one index-matching layer between the first transparent conductive coating or the second conductive coating and the switchable material layer;
a first adhesive polymer interlayer between the first glass substrate and the switchable functional film; and
a second adhesive polymer interlayer between the second glass substrate and the switchable functional film;
wherein the switchable laminated glass construction has a total light transmittance higher than 50% in a transparent state, as measured from at least one side of the switchable laminated glass construction, wherein the switchable laminated glass construction has a reflectance equal to or less than 13% in a transparent state, as measured from at least one side of the switchable laminated glass construction, and
wherein at least one of the first adhesive polymer interlayer and the second adhesive polymer interlayer is at least one darkened layer having a darkness for reducing reflectivity from at least one of the first and second transparent conductive coating layers.