Organic electroluminescence device

Details Organic electroluminescence device Organic electroluminescence device

2005-06-07

2005-06-07

Garrett, Dawn (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C428S332000, C313S504000, C313S506000

Reexamination Certificate

active

06902834

ABSTRACT:
An organic electroluminescent (EL) display device includes an anode, a hole transport layer formed on the anode, a light-emitting layer formed on the hole transport layer, a cathode formed on the light-emitting layer, and an electron injection layer including a metal oxide represented by formula 1 formed between the light-emitting layer and the cathode. Formula 1 is MAxMByOz, where MA denotes an alkali metal or alkali earth metal, MB is a group IV or V metal, x is a number between 1 and 2 inclusive, y is a number between 1 and 2, and z is a number between 2 and 3 inclusive.

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G.E. Jabbour et al; Aluminum Based Cathode Structure for Enhanced Electron Injection in Electroluminescent Organic Devices;Applied Physics Letters; Aug. 31, 1998; vol. 73; No. 9; pp. 1185-1187.

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