US 12,490,640 B2
Light-emitting device
Benoit Racine, Grenoble (FR); Gilles Le Blevennec, Grenoble (FR); and Etienne Quesnel, Grenoble (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Appl. No. 18/258,488
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
PCT Filed Dec. 15, 2021, PCT No. PCT/EP2021/085886
§ 371(c)(1), (2) Date Jun. 20, 2023,
PCT Pub. No. WO2022/136051, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 20 13919 (FR), filed on Dec. 22, 2020.
Prior Publication US 2024/0306424 A1, Sep. 12, 2024
Int. Cl. H10K 59/80 (2023.01)
CPC H10K 59/8793 (2023.02) [H10K 59/80515 (2023.02); H10K 59/80521 (2023.02); H10K 59/879 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A light-emitting device, comprising:
a first electrode, reflecting in a spectral range;
a second electrode; and
a light-emitting layer, extending between the first and second electrodes and configured to emit electromagnetic radiation in the spectral range, the electromagnetic radiation emitted by the light-emitting layer being circularly polarized in a first polarization direction, the electromagnetic radiation reflected by the first electrode being circularly polarized in a second polarization direction, opposite to the first polarization direction;
wherein the second electrode is structured so as to define:
opaque patterns in the spectral range arranged to block transmission of the circularly polarized electromagnetic radiation in the first polarization direction;
a spacing zone spacing apart the opaque patterns from one another and transparent in the spectral range so as to allow transmission of the circularly polarized electromagnetic radiation in the second polarization direction.