Electroluminescent element
AssigneeKoninklijke Phillips Electronics N.V.
InventorGuenole Claude Michel Silvestre
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Abstract
Dark spots in LED displays and illumination devices are prevented by adding redundancy in a LED display (illumination devices) by sub-pixelation and providing (a layer of) fuses for each sub-pixel. To this end, an electroluminescent element is characterized in that the electroluminescent element comprises a plurality of sub-elements in electrically parallel-arranged branches, and, in each branch, a fuse element between one of the connections and a part of the layer of electroluminescent material. The material of the electrode layer can then also be used as a material for the fuse element.
Claims6
An electroluminescent element having a transparent substrate which is provided with a layer of electroluminescent material between a first transparent electrode layer and a second electrode layer, and connections for the electrodes, characterized in that the electroluminescent element comprises a plurality of sub-elements in electrically parallel-arranged branches and, in each branch, a short-circuit fuse element between one of the connections and a part of the layer of electroluminescent material.
Dependencies are inferred from the claim text.