Light-emitting element, light-emitting device, and vapor deposition apparatus
First Claim
1. A light-emitting element comprising a pair of electrodes, and a layer containing a light-emissive substance sandwiched therebetween,wherein the layer containing the light-emissive substance comprises a layer containing a composite material;
- wherein the layer containing the composite material comprises an organic compound and an inorganic compound; and
wherein a concentration ratio of the organic compound to the inorganic compound changes in a stacked direction so that a maximum value and a minimum value of the concentration ratio are alternately repeated, and a concentration of the organic compound is not less than 10 wt % and not more than 95 wt % throughout the layer containing the composite material.
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Accused Products
Abstract
To provide a light-emitting element and a light-emitting device which can be designed and manufactured with redundancy. A light-emitting element of the invention includes a pair of electrode, and a layer containing a light-emissive substance between the pair of electrodes. The layer containing a light-emissive substance includes a layer containing a composite material, and the layer containing a composite material includes an organic compound and an inorganic compound. The concentration ratio of the organic compound to the inorganic compound changes periodically. The layer containing a composite maternal can be changed in electrical characteristics without changing the composition ratio of the organic compound to the inorganic compound in the layer or changing the kind of compounds used for the layer.
39 Citations
28 Claims
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1. A light-emitting element comprising a pair of electrodes, and a layer containing a light-emissive substance sandwiched therebetween,
wherein the layer containing the light-emissive substance comprises a layer containing a composite material; -
wherein the layer containing the composite material comprises an organic compound and an inorganic compound; and wherein a concentration ratio of the organic compound to the inorganic compound changes in a stacked direction so that a maximum value and a minimum value of the concentration ratio are alternately repeated, and a concentration of the organic compound is not less than 10 wt % and not more than 95 wt % throughout the layer containing the composite material. - View Dependent Claims (2, 3, 4, 5, 6, 12, 13, 14, 15, 16, 17, 18, 27)
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7. A light-emitting element comprising a pair of electrodes, and a layer containing a light-emissive substance sandwiched therebetween,
wherein the layer containing the light-emissive substance comprises a layer containing a composite material; -
wherein the layer containing the composite material comprises an organic compound and an inorganic compound; and wherein a concentration of the inorganic compound changes in a stacked direction so that a maximum value and a minimum value of the concentration are alternately repeated but remains within a range between 5 wt % and 90 wt % throughout the layer containing the composite material. - View Dependent Claims (8, 9)
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10. A light-emitting element comprising a pair of electrodes, and a layer containing a light-emissive substance sandwiched therebetween,
wherein the layer containing the light-emissive substance comprises a layer containing a composite material; -
wherein the layer containing the composite material comprises an organic compound and an inorganic compound; and wherein a concentration of the organic compound changes in a stacked direction so that a maximum value and a minimum value of the concentration are alternately repeated but remains within a range between 10 wt % and 95 wt % throughout the layer containing the composite material. - View Dependent Claims (11, 19, 20)
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21. A light-emitting element comprising:
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a pair of electrodes; and a layer containing a light-emissive substance sandwiched therebetween, wherein a first region having a first average atomic weight and a second region having a second average atomic weight lower than the first average atomic weight are alternately stacked in the layer, wherein each of the first region and the second region comprises an organic compound and an inorganic compound, wherein a concentration of the organic compound in the first region is not less than 10 wt % and not more than 95 wt % throughout the first region, and wherein a concentration of the organic compound in the second region is not less than 10 wt % and not more than 95 wt % throughout the second region. - View Dependent Claims (22, 23, 25, 28)
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24. A light-emitting element comprising:
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a pair of electrodes; and a layer containing a light-emissive substance sandwiched therebetween, wherein, based on an image of light emission observed with a transmission electron microscope, a first region with a first color and a second region with a second color lighter than the first color are alternately stacked in the layer, wherein each of the first region and the second region comprises an organic compound and an inorganic compound, wherein a concentration of the organic compound in the first region is not less than 10 wt % and not more than 95 wt % throughout the first region, and wherein a concentration of the organic compound in the second region is not less than 10 wt % and not more than 95 wt % throughout the second region. - View Dependent Claims (26)
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Specification