US 11,679,649 B2
Multifunctional switchable film and constructions including such a film
Olivier Farreyrol, Wasserbillig (LU); Yu Matsuda, Nashville, TN (US); and Markus Walter Pohlen, Mückeln (DE)
Assigned to ACR II GLASS AMERICA INC., Nashville, TN (US)
Appl. No. 17/282,535
Filed by ACR II GLASS AMERICA INC., Nashville, TN (US)
PCT Filed Oct. 3, 2019, PCT No. PCT/US2019/054380
§ 371(c)(1), (2) Date Apr. 2, 2021,
PCT Pub. No. WO2020/072709, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/811,048, filed on Feb. 27, 2019.
Claims priority of provisional application 62/741,078, filed on Oct. 4, 2018.
Prior Publication US 2021/0339609 A1, Nov. 4, 2021
Int. Cl. B32B 17/06 (2006.01); B32B 15/04 (2006.01); B60J 1/00 (2006.01); B32B 7/023 (2019.01); B32B 17/10 (2006.01); B60J 3/04 (2006.01)
CPC B60J 1/001 (2013.01) [B32B 7/023 (2019.01); B32B 17/10036 (2013.01); B32B 17/10504 (2013.01); B32B 17/10513 (2013.01); B32B 17/10761 (2013.01); B60J 3/04 (2013.01); B32B 17/10201 (2013.01); B32B 17/10532 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2307/42 (2013.01); B32B 2605/006 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A laminated glazing comprising:
a first glass substrate and a second glass substrate laminated together having first and second polymer intermediate films therebetween; and
a layered film laminated between the first and second polymer intermediate films, wherein the layered film comprises:
at least three carrier films positioned in parallel to one another with a second carrier film positioned between first and third carrier films, wherein a first surface of the first carrier film is coated with a first transparent conductive coating and a first surface of the second carrier film is coated with a second transparent conductive coating, wherein the first surface of the first carrier film faces the first surface of the second carrier film, and
wherein a second surface of the second earner film is coated with a third transparent conductive coating and a first surface of the third carrier film is coated with a fourth transparent conductive coating, wherein the second surface of the second carrier film faces the first surface of the third carrier film;
a first switchable layer positioned between the first and second carrier films; and
a second switchable layer positioned between the second and third carrier films,
wherein the first carrier film comprises a first polarizing film and the second carrier film comprises a second polarizing film, wherein the first polarizing film comprises a polarizing angle 90° to a polarizing angle of the second polarizing film,
wherein the third carrier film comprises a non-polarizing carrier film, and
wherein the first switchable layer comprises a liquid crystal layer.