ORGANIC LIGHT-EMITTING DIODE, ORGANIC LIGHT-EMITTING DISPLAY INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE SAME

An organic light-emitting diode includes: a first electrode, a light-emitting stack thereon including: a hole transport layer (HTL), a blue light-emitting layer including: a blue host material (BHM), and a blue fluorescent dopant (BFD) material, and an electron transport layer (ETL), and a second el...

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Bibliographic Details
Main Authors SEO, Jeongdae, KIM, Sangbeom
Format Patent
LanguageEnglish
Published 11.08.2022
Subjects
ELECTRICITY
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Summary:An organic light-emitting diode includes: a first electrode, a light-emitting stack thereon including: a hole transport layer (HTL), a blue light-emitting layer including: a blue host material (BHM), and a blue fluorescent dopant (BFD) material, and an electron transport layer (ETL), and a second electrode on the light-emitting stack, wherein BFD LUMO>BHM, BFD HOMO>BHM, BFD singlet energy <BHM, HTL HOMO>BHM and BFD, HTL HOMO−BFD HOMO≤0.1 eV, the HTL material LUMO>the BHM, HTL LUMO−BHM LUMO>0.5 eV, HTL LUMO>BFD, ETL LUMO>BHM and BFD, a difference in LUMO between the ETL material and the BFD material ≤0.1 eV, and the HTL material, the ETL material, and the BHM have the following triplet energy relationships: T1,BH<T1,HTL and T1,BH<T1,ETL, 2.8<T1,HTL<3.0, and 2.6<T1,ETL<2.8.
Bibliography:Application Number: US202217724784