Organic electroluminescence device with carrier transport...

Details Organic electroluminescence device with carrier transport... Organic electroluminescence device with carrier transport...

2006-05-16

2006-05-16

Quarterman, Kevin (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000

Reexamination Certificate

active

07045953

ABSTRACT:
An organic EL device includes a transparent substrate (31), an anode (32), a hole injection layer (33), a hole transport layer (34), an luminescent layer (35), an electron transport multilayered body (36), a cathode-side electron transport layer (37), and a cathode (38) formed on the substrate (31) in that order. The electron transport multilayered body (36) includes alternate layered two kinds of electron transport layers (36A,36B) having electron affinities that are different from each other. Increasing the amount of electron current injected from the cathode (38) for balancing with the amount of hole current, and enhancing luminous efficiency.

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patent: 2000-82585 (2000-03-01), None

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