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US 9,755,161 B2Granted
Organic light emitting display device
AssigneeLG Display Co., Ltd.
InventorsDoHan Kim, JungKeun Kim, Hyoseok Kim, Min Yun, SeungHee Yoon
Life of this patent
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Abstract
An organic light emitting display device is disclosed. The organic light emitting display device comprises an anode, an organic layer over the anode, and a cathode over the organic layer. The organic layer may include a heterocyclic compound. Alternatively, the organic layer may include a spirobisfluorene compound with hole transfer properties and a material with electron transfer properties.
Claims9
A heterocyclic compound represented by the following Chemical Formula 1:
- where R1 to R5 are independently one among hydrogen, deuterium, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms, a substituted or unsubstituted aryl amino group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroaryl amino group having 2 to 30 carbon atoms, l and o are an integer between 0 and 3, and m, n, and p are an integer between 0 and 4,
- wherein, if any of l, m, n, o, and p has a value of 2 or more, the corresponding R is the same with each other or
- if any of l, m, n, o, and p has a value of 2 or more, the corresponding R is different from each other, and
- Ar is a substituted or unsubstituted aryl group having to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms.
1 more element
Dependencies are inferred from the claim text.