Organic electroluminescence device

Details Organic electroluminescence device Organic electroluminescence device

1993-05-10

1996-05-14

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428690, 428917, 4284111, 428457, 313503, 313504, 313506, B32B 702, H05B 3314

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active

055165770

ABSTRACT:
An organic electroluminescence device which comprises laminating layers in the order of anode/light emitting layer/adhesive layer/cathode, or anode/hole-injecting layer/light emitting layer/adhesive layer/cathode, the energy gap of the light emitting layer being larger than that of 8-hydroxyquinoline or metal complex thereof and contained in the adhesive layer, the light emitting layer comprising a compound which emits a blue, greenish blue or bluish green light in CIE chromaticity coordinates, and the adhesive layer including a metal complex of 8-hydroxyquinoline or a derivative thereof and at least one organic compound in an arbitrary region in the direction of the thickness of the layer, the thickness of which is smaller than that of the above-mentioned light emitting layer.
According to the above organic electroluminescence device, improvements in uniformity in light emission and emission efficiency are realized.

REFERENCES:
patent: 5130603 (1992-07-01), Tokailin et al.
patent: 5141671 (1992-08-01), Bryan et al.
patent: 5456988 (1995-10-01), Sano et al.
Database WPI, Derwent Publications Ltd., AN 93-004717, JP-A-4 332 787, Nov. 19, 1992.

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