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

H01L 51/54 (2006.01); H10K 50/11 (2023.01); H10K 50/155 (2023.01); H10K 85/10 (2023.01); H10K 85/60 (2023.01); H10K 50/15 (2023.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01); H10K 101/40 (2023.01);

U.S. Cl.

CPC ...

H10K 85/10 (2023.02); H10K 50/11 (2023.02); H10K 50/155 (2023.02); H10K 85/631 (2023.02); H10K 85/6572 (2023.02); H10K 50/15 (2023.02); H10K 59/12 (2023.02); H10K 59/35 (2023.02); H10K 2101/40 (2023.02);

Abstract

A light-emitting element includes at least: an anode; a cathode; a light-emitting layer between the anode and the cathode; and a hole-transport layer between the anode and the light-emitting layer. The hole-transport layer is a film containing a mixture of a hole-transport material and a polysiloxane-based polymer. The light-emitting element further includes: a first electron-transport layer between the light-emitting layer and the cathode; and a second electron-transport layer between the first electron-transport layer and the cathode. A value of a LUMO level of the first electron-transport layer is as high as, or higher than, a value of a LUMO level of the second electron-transport layer, and the value of the LUMO level of the first electron-transport layer is higher than a value of a LUMO level of the light-emitting layer in contact with the first electron-transport layer.

Find Patent Forward Citations

Mizusaki, Masanobu. (2026). Light-emitting element and light-emitting device (U.S. Patent No. 12527213). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12527213

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