Luminescent apparatus and method of manufacturing the same
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorTakeshi Fukunaga
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Abstract
The present invention provides a luminescent apparatus having a bright, high-quality image. A reflecting surface-including electrode, and an EL element formed of an organic EL layer and a transparent electrode are provided on an insulator. As shown in FIG. 1, an auxiliary electrode 107 formed of a transparent conductive film is connected to the transparent electrode via a conductor. This structure enables a resistance value of the transparent electrode 104 to be substantially lowered, and a uniform voltage to be applied to the organic EL layer.
Claims21
A luminescent apparatus comprising:
- a substrate;
- a first electrode having a reflective surface formed over the substrate;
- an organic electro luminescence layer formed over the first electrode;
- a transparent electrode formed over the organic electro luminescence layer;
- a plurality of conductive layers disposed separately over each other, and formed on the transparent electrode;
- and
- an auxiliary electrode formed over the plurality of conductive layers,
- wherein the auxiliary electrode is electrically connected to the transparent electrode via the plurality of conductive layers.
A luminescent apparatus comprising:
- a substrate;
- a first electrode having a reflective surface over the substrate;
- an organic electro luminescence layer over the first electrode;
- a transparent electrode over the organic electro luminescence layer;
- an anisotropic conductor over the transparent electrode;
- and
- an auxiliary electrode formed over the anisotropic conductor and electrically connected to the transparent electrode via the anisotropic conductor.
A luminescent apparatus comprising:
- a substrate;
- a switching TFT formed over the substrate;
- a current control TFT electrically connected to the switching TFT;
- a first electrode having a reflective surface formed over the current control TFT;
- an organic electro luminescence layer formed over the first electrode;
- a transparent electrode formed over the organic electro luminescence layer;
- an anisotropic conductor formed over the transparent electrode;
- and
- an auxiliary electrode formed over the anisotropic conductor and electrically connected to the transparent electrode via the anisotropic conductor.
A luminescent apparatus comprising:
- an electro luminescence element comprising an electrode having a reflective surface, a transparent electrode and an organic electro luminescence layer interposed therebetween;
- an auxiliary electrode electrically connected to the transparent electrode via an anisotropic conductor,
- wherein the electrode having a reflective surface is formed by laminating a metallic film and a transparent conductive film on each other and the transparent electrode is formed by laminating a translucent metallic film and a transparent conductive film on each other.
A method of manufacturing a luminescent apparatus comprising the steps of:
- forming a reflecting surface-including electrode on an insulator,
- forming an organic electro luminescence layer on the reflecting surface-including electrode, forming a transparent electrode on the organic electro luminescence layer,
- forming an anisotropic conductor on the transparent electrode,
- forming an auxiliary electrode on a seal member, and
- pasting the insulator and seal member on each other so that the anisotropic conductor and auxiliary electrode are connected together,
- wherein the reflecting surface-including electrode is formed by laminating a metallic film and a transparent conductive film on each other and the transparent electrode is formed by laminating a translucent metallic film and a transparent conductive film on each other.
A luminescent apparatus comprising:
- a plurality of pixels, each of the plurality of pixels comprising:
- at least one thin film transistor over a substrate;
- a first electrode having a reflective surface over the substrate and electrically connected to the at least one thin film transistor;
- and
- an organic electro luminescence layer over the first electrode,
- a transparent electrode over the plurality of pixels;
- an anisotropic conductor over the transparent electrode;
- and
- an auxiliary electrode over the anisotropic conductor and electrically connected to the transparent electrode via the anisotropic conductor.
Dependencies are inferred from the claim text.