Organic electroluminescent light source
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United States of America Patent
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Aug 3, 2010
Grant Date -
Sep 17, 2009
app pub date -
Dec 1, 2005
filing date -
Dec 6, 2004
priority date (Note) -
Expired
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Abstract
An electroluminescent light source having a substrate (1), a layer structure applied on the substrate (1) for emitting light (10) at least on the other side from the substrate, having at least one electrode as an anode (3), at least one electrode as a cathode (4) and at least one organic electroluminescent layer (2) lying between them, the electrode (4) on the other side from the substrate being at least partially transparent, and an at least partially transparent encapsulation device (5) for forming a closed volume (6) around the layer structure, which is filled with a dielectric liquid (11) that is substantially chemically inert with respect to the layer structure and which contains particles (12), in particular of a non-absorbent material, for scattering light, the density of which is selected so that the particles (12) are in the suspended state in the dielectric liquid (11).
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