ORGANIC LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and comprising an emission layer; and an electron transport region between the emission layer and the second electrode, w...

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Bibliographic Details
Main Authors Kim, Seulong, Kim, Sungwook, Kim, Kyungsik, Chu, Seungjin, Hur, Jaeweon
Format Patent
LanguageEnglish
Published 18.04.2024
Subjects
ELECTRICITY
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Summary:An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an organic layer between the first electrode and the second electrode and comprising an emission layer; and an electron transport region between the emission layer and the second electrode, wherein the electron transport region comprises a first auxiliary layer and a second auxiliary layer, the first auxiliary layer is between the emission layer and the second auxiliary layer, the first auxiliary layer comprises a first compound, the second auxiliary layer comprises a second compound, the second compound comprises at least one π electron-depleted nitrogen-containing ring, and the organic light-emitting device satisfies equations: T1(EML)≥T1(AXL1)+0.3 eV and T1(AXL2)≥T1(AXL1)+0.5 eV.
Bibliography:Application Number: US202318509807