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US 12,262,629 B2Granted
Organic light-emitting device
AssigneeSamsung Display Co., Ltd.
InventorsSung-Soo Bae, Seul-Ong Kim, Dong-Hyun Kim, Sung-Wook Kim, Tsuyoshi Naijo, Hye-In Jeong, Hwan-Hee Cho
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Abstract
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer. The organic layer includes a first compound represented by Formula 1 and a second compound represented by Formula 2. The first compound may be included in an emission layer, and the second compound may be included in an electron transport region.
Claims7
An organic light-emitting device comprising:
- a first electrode;
- a second electrode facing the first electrode;
- and
- an organic layer between the first electrode and the second electrode, the organic layer comprising an emission layer and an electron transport region between the emission layer and the second electrode,
- wherein the emission layer comprises a first compound represented by Formula 1-A and the electron transport region comprises a second compound represented by Compounds 2-2 to 2-70:
- wherein, in Formula 1-A,
- M is platinum (Pt),
- X51 is selected from the group consisting of O, S, and N—R7,
- L1 to L4 are each independently a benzene group,
- b1 to b4 are each 0,
- R1 is hydrogen, or an unsubstituted benzene group,
- R2 is a tert-butyl group,
- R3 is hydrogen, a tert-butyl group, or an unsubstituted benzene group,
- R4 is a tert-butyl group, or a benzene group substituted with an isopropyl group, and
- R7 is an unsubstituted benzene group, or a benzene group substituted with a tert-butyl group,
- c1 to c4 are each 1,
- a1 to a4 are each independently 0 or 1,
14 more elements
Dependencies are inferred from the claim text.