Organic light emitting device and organic light emitting display device using the same
AssigneeLG Display Co., Ltd.
InventorsSe Hee Lee, Kwan Soo Kim, Sang Dae Kim
Life of this patent
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Abstract
Disclosed is a an organic light emitting device including a first electrode and a second electrode; and an organic layer formed between the first electrode and the second electrode, in which the organic layer includes a compound represented by Formula 1 and the second electrode is a double-layer structure comprised of LiF:Mg. Accordingly, an organic light emitting device which has excellent voltage efficiency and emission efficiency and may improve service-life characteristics, and an organic light emitting display device using the same may be provided.
Claims11
An organic light emitting device, comprising:
- a first electrode and a second electrode;
- and
- an organic layer disposed between the first electrode and the second electrode,
- wherein the organic layer comprises a compound represented by the following Formula 1, and the second electrode is a double layer comprised of LiF:Mg:
- where, R1 and R2 are each independently or simultaneously a group derived from the group consisting of a hydrogen atom, an aliphatic hydrocarbon having 1 to 20 carbon atoms, phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring,
- Ar is a group derived from the group consisting of phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring,
- R3 is a group derived from the group consisting of a hydrogen atom, an alkyl group or aliphatic hydrocarbon having 1 to 6 carbon atoms, a substituted phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring,
- X is NR4, a sulfur atom, or an oxygen atom, and
- R4 is a group derived from a hydrogen atom, an alkyl group or aliphatic hydrocarbon having 1 to 7 carbon atoms, phenyl, naphthyl, biphenyl, anthracenyl, or an aromatic heterocyclic ring.
An organic light emitting display device, comprising:
- a substrate on which an active area having a plurality of pixel areas is defined;
- a driving thin film transistor disposed on each of the plurality of pixel areas;
- a passivation layer disposed on the driving thin film transistor;
- a first electrode connected to a drain electrode exposed by a contact hole formed on the passivation layer;
- an organic layer disposed on the first electrode and comprising a compound represented by the following Formula 1;
- and
- a second electrode which is disposed on the organic layer and is a double-layer comprised of LiF:Mg:
- where, R1 and R2 are each independently or simultaneously a group derived from the group consisting of a hydrogen atom, an aliphatic hydrocarbon having 1 to 20 carbon atoms, phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring,
- Ar is a group derived from the group consisting of phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring,
- R3 is a group derived from the group consisting of a hydrogen atom, an alkyl group or aliphatic hydrocarbon having 1 to 6 carbon atoms, a substituted phenyl, naphthyl, biphenyl, anthracenyl, an aromatic heterocyclic ring, or an aromatic ring,
- X is NR4, a sulfur atom, or an oxygen atom, and
- R4 is a group derived from a hydrogen atom, an alkyl group or aliphatic hydrocarbon having 1 to 7 carbon atoms, phenyl, naphthyl, biphenyl, anthracenyl, or an aromatic heterocyclic ring.
Dependencies are inferred from the claim text.