Organic electroluminescent element and method of repairing the same
AssigneePioneer Corporation
InventorHirofumi Kubota
Life of this patent
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Abstract
An organic electroluminescent element and a method of repairing the organic electroluminescent element that solve a problem of a failure in luminescence and a failure in an electroluminescent element caused by the current leak are provided. The organic electroluminescent element according to the present invention includes transparent electrodes, a plurality of organic material layers and metal electrodes being formed in order on a transparent board and contains a protective layer for preventing current leak formed between the transparent board and a plurality of the organic material layers, wherein the protective layer for preventing current leak and/or a part of a plurality of the organic material layers is evaporated by absorbing an irradiated laser beam.
Claims7
An organic electroluminescent element comprising:
- a transparent board,
- transparent electrodes,
- a plurality of organic material layers,
- metal electrodes and
- a protective layer for preventing current leak, which evaporates when it absorbs a laser beam,
- wherein the transparent electrodes, the plurality of the organic material layers, and the metal electrodes are formed in order on the transparent board, and wherein the protective layer is formed between the transparent board and the plurality of the organic material layers, and
- wherein a space is formed between the transparent electrodes and the protective layer where the protective layer absorbs a laser beam.
A method of repairing an organic electroluminescent element including transparent electrodes, a plurality of organic material layers and metal electrodes being formed in order on a transparent board and comprising a protective layer for preventing current leak formed between the transparent board and a plurality of the organic material layers, characterized in that a laser beam, having substantially the same wavelength as an absorption wavelength of a material of the protective layer for preventing current leak and/or an organic material which forms a specific organic material layer from among a plurality of the organic material layers, is irradiated onto the protective layer for preventing current leak and/or the specific organic material layer so as to evaporate the protective layer for preventing current leak and/or the specific organic material layer.
Dependencies are inferred from the claim text.