Organic electroluminescent device
AssigneeSamsung Mobile Display Co., Ltd.
InventorsJong-Jin Park, Yu-Jin Kim, Sang-Hoon Park, Jhun-Mo Son
Life of this patent
Estimating the term…
Abstract
Provided is an organic electroluminescent device including an organic layer interposed between a pair of electrodes, the organic layer including a layer formed of a titanium oxide derivative or a mixture layer containing a titanium oxide derivative. The organic electroluminescent device has higher luminescent efficiency, a longer lifetime and a lower operating voltage than a conventional organic electroluminescent device, and can be easily manufactured.
Claims20
An organic electroluminescent device, comprising:
- a pair of electrodes;
- and
- an organic layer interposed between the pair of electrodes, the organic layer comprising:
- at least one layer selected from the group consisting of a hole injection layer, a hole transport layer, an emission layer, and an electron transport layer;
- and
- a layer formed of a titanium oxide derivative on or between said at least one layer.
An organic electroluminescent device, comprising:
- a pair of electrodes;
- and
- an organic layer interposed between the pair of electrodes, the organic layer comprising a layer doped with a titanium oxide derivative.
An organic electroluminescent device, comprising:
- a pair of electrodes;
- and
- an organic layer interposed between the pair of electrodes, the organic layer comprising a layer formed of a titanium oxide derivative represented by Formulae 1 through 4:
- Ti(OR1)4 (1)
- where R1 is each independently CH3CO—CH═CCH3—, C2H5OCO—CH═CCH3—, —CH3CH—COO−NH4+, —COR2, —CO(C6H4)COOR3, or a C1-C12 alkyl group;
- R2 is a substituted or unsubstituted C1-C12 alkyl group;
- and
- R3 is a substituted or unsubstituted C1-C12 alkyl group;
- where R4 is a substituted or unsubstituted C1-C12 alkyl group;
- and
- R5 is a substituted or unsubstituted C1-C12 alkyl group;
- where R6 is a substituted or unsubstituted C1-C12 alkyl group;
- and
- where R7 is a substituted or unsubstituted C1-C12 alkyl group.
Dependencies are inferred from the claim text.