US 11,850,826 B2
Laminated pane comprising multiple functional elements and a bus bar on a barrier film
Marcel Klein, Baesweiler (DE)
Assigned to SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
Appl. No. 17/790,355
Filed by SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
PCT Filed Feb. 9, 2021, PCT No. PCT/EP2021/053045
§ 371(c)(1), (2) Date Jun. 30, 2022,
PCT Pub. No. WO2021/165093, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 20158129 (EP), filed on Feb. 19, 2020.
Prior Publication US 2023/0042594 A1, Feb. 9, 2023
Int. Cl. B32B 17/10 (2006.01); B32B 3/04 (2006.01); B32B 3/08 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); G02F 1/1334 (2006.01); G02F 1/1339 (2006.01); G02F 1/1343 (2006.01); B60J 1/00 (2006.01)
CPC B32B 17/10504 (2013.01) [B32B 3/04 (2013.01); B32B 3/085 (2013.01); B32B 17/10036 (2013.01); B32B 17/1077 (2013.01); B32B 17/10532 (2013.01); B32B 17/10761 (2013.01); B32B 17/10779 (2013.01); B32B 17/10788 (2013.01); B32B 17/10807 (2013.01); B32B 27/08 (2013.01); B32B 27/30 (2013.01); B32B 27/306 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); G02F 1/1334 (2013.01); G02F 1/1339 (2013.01); G02F 1/134309 (2013.01); B32B 2274/00 (2013.01); B32B 2307/732 (2013.01); B32B 2419/00 (2013.01); B32B 2605/006 (2013.01); B60J 1/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A laminated pane, comprising an outer pane, an inner pane, and at least two intermediate layers between the outer pane and the inner pane,
wherein at least two separate functional elements with electrically controllable optical properties are arranged in a plane between the at least two intermediate layers,
the at least two separate functional elements each comprise in each case, in this order, a first carrier film, a first surface electrode, an active layer, a second surface electrode, and a second carrier film,
on two opposite sides of each functional element of the at least two separate functional elements, an inner bus bar is connected in each case to the first surface electrode or to the second surface electrode of the respective functional element,
at least one of the two opposite sides of each functional element is sealed, at least along a partial region, by two polyethylene terephthalate (PET) barrier films, wherein one PET barrier film of the two PET barrier films is arranged partly between one intermediate layer of the at least two intermediate layers and an edge region of the first carrier film and the other PET barrier film of the two PET barrier films is arranged partly between the other intermediate layer of the at least two intermediate layers and an edge region of the second carrier film,
wherein
attached on one of the two PET barrier films is at least one outer bus bar that is connected via an electrically conducting connection to the inner bus bar of a functional element of the at least two separate functional elements in order to electrically control the functional element separately from the other functional element or elements of the at least two separate functional elements.