The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

H10K 50/13 (2023.01); H01L 33/00 (2010.01); H10K 50/11 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01); H10K 101/30 (2023.01); H10K 101/40 (2023.01);

U.S. Cl.

CPC ...

H10K 50/13 (2023.02); H01L 33/002 (2013.01); H10K 50/11 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 59/351 (2023.02); H10K 59/38 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 2101/10 (2023.02); H10K 2101/30 (2023.02); H10K 2101/40 (2023.02); H10K 2101/90 (2023.02);

Abstract

A light-emitting element which uses a plurality of kinds of light-emitting dopants emitting light in a balanced manner and has high emission efficiency is provided. Further, a light-emitting device, a display device, an electronic device, and a lighting device each having reduced power consumption by using the above light-emitting element are provided. A light-emitting element which includes a plurality of light-emitting layers including different phosphorescent materials is provided. In the light-emitting element, the light-emitting layer which includes a light-emitting material emitting light with a long wavelength includes two kinds of carrier-transport compounds having properties of transporting carriers with different polarities. Further, in the light-emitting element, the triplet excitation energy of a host material included in the light-emitting layer emitting light with a short wavelength is higher than the triplet excitation energy of at least one of the carrier-transport compounds.

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