US 12,007,653 B2
Glazing unit with electrically controllable optical properties having a plurality of independent switching regions
Richard Stelzer, Düsseldorf (DE)
Assigned to SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
Appl. No. 18/263,283
Filed by SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
PCT Filed Apr. 29, 2022, PCT No. PCT/EP2022/061469
§ 371(c)(1), (2) Date Jul. 27, 2023,
PCT Pub. No. WO2022/243009, PCT Pub. Date Nov. 24, 2022.
Claims priority of application No. 21174346 (EP), filed on May 18, 2021.
Prior Publication US 2024/0103321 A1, Mar. 28, 2024
Int. Cl. G02F 1/1343 (2006.01); B32B 17/10 (2006.01); B60J 3/04 (2006.01); G02F 1/1334 (2006.01)
CPC G02F 1/134309 (2013.01) [B32B 17/10036 (2013.01); B32B 17/10192 (2013.01); B32B 17/1022 (2013.01); B32B 17/10348 (2013.01); B32B 17/10504 (2013.01); B32B 17/10532 (2013.01); B32B 17/10761 (2013.01); B60J 3/04 (2013.01); G02F 1/1334 (2013.01); B32B 2605/00 (2013.01); G02F 1/13439 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A glazing unit with electrically controllable optical properties having a plurality of independent switching regions, comprising:
a laminated glass pane, comprising
an outer pane and an inner pane, which are connected to one another via a thermoplastic intermediate layer,
an electrically controllable functional element which is arranged between the outer pane and the inner pane and has an active layer having electrically controllable optical properties between a first planar electrode and a second planar electrode,
a control unit adapted to control the optical properties of the electrically controllable functional element,
wherein the first planar electrode is subdivided by at least one insulation line into at least two separate electrode segments,
wherein each electrode segment of the first planar electrode and the second planar electrode are electrically connected to the control unit, so that an AC voltage is applicable independently between each electrode segment of the first planar electrode and the second planar electrode in order to control the optical properties of the section of the active layer located between them,
wherein the control unit is adapted to apply an AC voltage between at least two electrode segments of the first planar electrode, on the one hand, and the second planar electrode, on the other hand, wherein the AC voltages are phase-shifted.