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US 2021/0202871 A1Published application
Organic electric element, display panel comprising the same and display device comprising the same
AssigneeLG Display Co., Ltd.
InventorsSeonkeun YOO, Shinhan KIM, Jicheol SHIN, Seongsu JEON, Jeongdae SEO
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Abstract
Provided are an organic electric element, a display panel and a display device including the organic electric element. The organic electric element includes a specific compound and satisfies a specific general formula related to energy levels of the component compounds so that they can have excellent efficiency or lifespan.
Claims16
An organic electric element comprising:
- a first electrode;
- a second electrode;
- and
- an organic layer positioned between the first electrode and the second electrode, and comprising a first layer and a light emitting layer,
- wherein the first layer comprises a first compound, a second compound, and a third compound, and
- the first compound has a HOMO (Highest Occupied Molecular Orbital) energy level of −5.5 eV to −5.0 eV,
- the organic electric element satisfies a following general formula 1:
- 0.1 eV≤L3−L2≤0.5 eV (1)
- where, in the general formula 1, L3 is a LUMO (Lowest Unoccupied Molecular Orbital) energy level of the third compound, and L2 is a LUMO energy level of the second compound.
6 more elements
Dependencies are inferred from the claim text.