公开(公告)号：US20230329024A1

公开(公告)日：2023-10-12

申请号：US18026813

申请日：2021-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Hamed SHARIFIDEHSARI ,  Harald FLÜGGE ,  Henning MARCINIAK ,  Jaime Leganés CARBALLO ,  Kody KLIMES ,  Georgios LIAPTSIS ,  Damien JOLY ,  Daniel Alfredo DE SA PEREIRA

IPC: H10K50/11 ,  H10K85/60 ,  C09K11/06

CPC classification number: H10K50/11 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/658 ,  C09K11/06 ,  C09K2211/1018 ,  C09K2211/1003

Abstract: The present invention relates to organic electroluminescent devices including one or more light-emitting layers B, each of which is composed of one or more sublayers including as a whole one or more excitation energy transfer components EET-1, one or more excitation energy transfer components EET-2, and one or more small full width at half maximum (FWHM) emitters SB emitting light with an FWHM of less than or equal to 0.25 eV. Furthermore, the present invention relates to a method for generating light by means of an organic electroluminescent device according to the present invention.