Organic electroluminescent device

Details Organic electroluminescent device Organic electroluminescent device

2011-07-19

2011-07-19

Tarazano, D. Lawrence (Department: 1786)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000, C428S690000, C428S917000, C257S040000, C257SE51044, C257SE51047

Reexamination Certificate

active

07982391

ABSTRACT:
An organic electroluminescent device comprising two electrodes and at least one organic compound layer disposed between the electrodes,wherein a luminescent layer is included in the organic compound layers, the luminescent layer includes a fluorescent compound, at least one of the organic compound layers comprises an amplifying agent, the fluorescent compound emits fluorescent light upon application of voltage, the amplifying agent is capable of amplifying a number of singlet excitons and of amplifying luminescence intensity, and an amount of the amplifying agent is such an amount that at least 51% of light components emitted by the device upon the application of voltage is fluorescent light,wherein the fluorescent compound is selected from the group consisting of a distyryl arylene derivative, an oligoarylene derivative, an nitrogen-containing aromatic heterocyclic compound, a sulfur-containing heterocyclic compound, a metal complex, an oxo-substituted heterocyclic compound, an organosilicon compound and a triaryl amine derivative.

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patent: WO 00/70655 (2000-11-01), None
patent: WO 01/08230 (2001-02-01), None
Chen et al., Applied Physics Letters, (2001), vol. 79, No. 22, pp. 3711-3713.
Baldo et al., Nature, (2000), vol. 403, pp. 750-753.
Tang et al., Journal of Applied Physics, (1989), vol. 85, No. 9, pp. 3610-3616.

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