Organic electroluminescence element and method of manufacturing the same

An electroluminescent element and electroluminescent technology, which are applied to electroluminescent light sources, electrical components, organic semiconductor devices, etc., can solve the problems of plasma damage, difficulty in injecting electrons, and inability to obtain component characteristics, so as to improve the extraction efficiency, Excellent color rendering effect
CN101662000AInactive Publication Date: 2010-03-03YAMAGATA PROMOTIONAL ORG FOR INDAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YAMAGATA PROMOTIONAL ORG FOR INDAL TECH
Publication Date
2010-03-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an organic electroluminescence element and a method of manufacturing the same. In organic electroluminescence element, an anode layer 2, a light emitting unit 3, and a cathode layer 4 which each have optical permeability are stacked on a transparent substrate 1, the cathode layer 4 including a first charge generation layer 4a and a cathode 4c. The cathode 4c is formed by wayof a facing target sputtering method. Even in the case where a cathode material which has optical permeability is used, the organic electroluminescence element is driven at a low applied voltage, hasno angle dependability of an emission spectrum, and has high luminous efficiency.
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Description

technical field

[0001] The present invention relates to a light-transmitting organic electroluminescent (EL) element suitable for lighting and a method for manufacturing the same. Background technique

[0002] Organic EL elements are self-luminous elements that use organic compounds as light-emitting materials. Since they can emit light at a high speed, they are suitable for displaying moving images, and have the characteristics of simplifying the structure of the element and reducing the thickness of the display panel. Owing to having such favorable characteristics, organic EL elements are widely used in daily life as displays for mobile phones and vehicles.

[0003] In addition, in recent years, organic EL elements have been attracting attention as next-generation lighting because they exhibit features such as thin surface emission as described above.

[0004] In a general organic EL element, one electrode is formed of a reflective electrode made of metal, so light is tak...

Claims

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