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US 2006/0186794 A1Published application
Electroluminescent devices with electrode protection
AssigneeCambridge Display Technology Limited
InventorsKarl Pichler, Carl Towns
Life of this patent
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Abstract
A method of manufacturing an electroluminescent device which has an anode and a cathode and arranged between the anode and the cathode a light emissive layer, also includes an anode protection layer which protects the anode against the effects of converting a precursor polymer to a semiconductive conjugated polymer which constitutes the light emissive layer. This has been found to increase the brightness and half-life of devices.
Claims5
1-25. (canceled)
An organic electroluminescent device comprising:
- an anode formed of a positive charge carrier injecting material;
- a cathode formed of a negative charge carrier injecting material;
- a light emissive layer located between the anode and the cathode;
- and
- located between the anode and the light-emissive layer a layer comprising an inorganic metal compound exhibiting a hole transport mobililty.
2 more elements
An electroluminescent device comprising:
- an anode formed of a positive charge carrier injecting material;
- a cathode formed of a negative charge carrier injecting material;
- a light-emissive layer located between the anode and the cathode;
- and
- located between the anode and the light-emissive layer a layer comprising a non-stoichiometric inorganic metal compound.
2 more elements
Dependencies are inferred from the claim text.