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US 7,023,130 B2Granted
Electrode for electroluminescence and electroluminescent device using the same
AssigneeDai Nippon Printing Co., Ltd.
InventorDaisaku Haoto
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Abstract
The present invention provides an electrode for electroluminescence for use in electronic devices including organic electroluminescent devices and a process for producing the same, in which interfacial electric characteristics, such as work functions, can be easily controlled. The process for producing an electrode for electroluminescence comprises the step of diffusing an additive element for an electrode into the electrode and/or the step of developing surfactant properties of the additive element for an electrode.
Claims5
An electrode for electroluminescence comprising an electrode additive element, wherein:
- the electrode additive element is present in an interior region of the electrode and in a surface region of the electrode;
- and
- a first concentration of the electrode additive element in the surface region of the electrode is higher than a second concentration of the additive element in the interior region of the electrode.
Dependencies are inferred from the claim text.