Light emitting device and manufacturing method thereof
First Claim
1. A light emitting device comprising, a first electrode connected with a thin film transistor over a substrate having an insulative surface;
- a light absorbing multi-layered film over a portion of the first electrode;
an insulator covering an end portion of the first electrode;
a layer containing an organic compound in contact with the first electrode; and
a second electrode in contact with the layer containing the organic compound, wherein the first electrode has an inclined surface, the inclined surface reflects light emitted from the layer containing the organic compound.
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Accused Products
Abstract
A light emission device manufactured by a method of forming a curved surface having a radius of curvature to the upper end of an insulator 19, exposing a portion of the first electrode 18c to form an inclined surface in accordance with the curved surface, and applying etching so as to expose the first electrode 18b in a region to form a light emission region, in which emitted light from the layer containing the organic compound 20 is reflected on the inclined surface of the first electrode 18c to increase the total take-out amount of light in the direction of an arrow shown in FIG. 1A and, further, forming a light absorbing multi-layered film 24 comprising light absorbing multi-layered film on the first electrode 18c other than the region to form the light emission region, thereby obtaining a light emission device of a structure increasing the amount of light emission taken out in one direction in a light emission element, while not all the light formed in the layer containing the organic compound are taken out from the cathode as a transparent electrode toward TFT but the light was emitted also, for example, in the lateral direction (direction parallel with the plane of the substrate).
253 Citations
49 Claims
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1. A light emitting device comprising,
a first electrode connected with a thin film transistor over a substrate having an insulative surface; -
a light absorbing multi-layered film over a portion of the first electrode;
an insulator covering an end portion of the first electrode;
a layer containing an organic compound in contact with the first electrode; and
a second electrode in contact with the layer containing the organic compound, wherein the first electrode has an inclined surface, the inclined surface reflects light emitted from the layer containing the organic compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A light emitting device comprising,
a first electrode connected with a thin film transistor over a substrate having an insulative surface; -
a light absorbing multi-layered film over a portion of the first electrode;
an insulator covering an end portion of the first electrode;
a layer containing an organic compound in contact with the first electrode; and
a second electrode in contact with the layer containing the organic compound, wherein the first electrode has a concaved shape. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A light emitting device comprising,
a first electrode connected with a thin film transistor over a substrate having an insulative surface; -
a light absorbing multi-layered film over a portion of the first electrode;
an insulator covering an end portion of the first electrode;
a layer containing an organic compound in contact with the first electrode; and
a second electrode in contact with the layer containing the organic compound, wherein the first electrode is in a multi-layered structure, a number of laminate at end region of the first electrode is more than a number of laminate at central region of the first electrode. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A light emitting device comprising,
a first electrode connected with a thin film transistor over a substrate having an insulative surface; -
a light absorbing multi-layered film over a portion of the first electrode;
an insulator covering an end portion of the first electrode;
a layer containing an organic compound in contact with the first electrode; and
a second electrode in contact with the layer containing the organic compound, wherein wirings or electrodes are formed on the same layer as the first electrode. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of manufacturing a light emitting device comprising the steps of;
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forming a laminate comprising a first electrode and a light absorbing multi-layered film continuously without exposure to the atmospheric air;
forming an insulator covering an end portion of the first electrode;
conducting etching using the insulator as a mask to reduce the thickness at the central portion of the first electrode such that the inclined surface is exposed;
forming a layer containing an organic compound; and
forming a second electrode comprising a light transmitting metal thin film on the layer containing the organic compound. - View Dependent Claims (46, 47, 48, 49)
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Specification