Organic EL element and method of forming the same
First Claim
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1. An organic EL element comprising:
- a first wiring electrode;
a second wiring electrode;
a plurality of light-emitting units which exhibit organic EL luminescence and at least two different luminous colors, each of the plurality of light-emitting units being connected in series between the first wiring electrode and the second wiring electrode; and
a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units,wherein the plurality of light-emitting units comprise light-emitting units which exhibit one color and are formed in multiple stages, and a desired mixed color is obtained from the light-emitting surface by combining the different luminous colors,wherein each of the plurality of light-emitting units comprises at least one conductive layer and an organic luminescent function layer being connected to the conductive layer.
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Abstract
An organic EL element includes a plurality of light-emitting units which exhibit organic EL luminescence and at least two different luminous colors and are connected in series; and a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units. The plurality of light-emitting units includes light-emitting units which exhibit one color and are formed in multiple stages. A desired mixed color is obtained from the light-emitting surface by combining the different luminous colors.
6 Citations
12 Claims
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1. An organic EL element comprising:
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a first wiring electrode; a second wiring electrode; a plurality of light-emitting units which exhibit organic EL luminescence and at least two different luminous colors, each of the plurality of light-emitting units being connected in series between the first wiring electrode and the second wiring electrode; and a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units, wherein the plurality of light-emitting units comprise light-emitting units which exhibit one color and are formed in multiple stages, and a desired mixed color is obtained from the light-emitting surface by combining the different luminous colors, wherein each of the plurality of light-emitting units comprises at least one conductive layer and an organic luminescent function layer being connected to the conductive layer. - View Dependent Claims (2, 3, 4, 5)
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6. A method of forming an organic EL element including a plurality of light-emitting units exhibiting organic EL luminescence and at least two different luminous colors, comprising:
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connecting the plurality of light-emitting units in series; and overlapping partly or wholly light-emitting surfaces of the light-emitting units to form a light-emitting surface of the organic EL element, wherein the plurality of light-emitting units comprise light-emitting units which exhibit one color and are formed in multiple stages, wherein a desired mixed color is obtained from the light-emitting surface of the organic EL element by combining the different luminous colors, wherein a lower wiring electrode that serves as an anode is grown on a substrate, wherein an upper wiring electrode that serves as a cathode is grown on the upper light-emitting unit. - View Dependent Claims (7, 8, 9, 10)
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11. An organic EL element comprising:
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a first wiring electrode; a second wiring electrode; a plurality of light-emitting units which are connected in series, exhibit organic EL luminescence and at least two different color and include a first light-emitting unit exhibiting a first luminous color and a second light-emitting unit exhibiting a second luminous color; and a light-emitting surface formed by overlapping partly or wholly light-emitting surfaces of the light-emitting units, wherein a plurality of first light-emitting units are formed in multiple stages and a desired mixed color is obtained from the light-emitting surface by combining the first and second luminous colors; wherein each of the plurality of light-emitting units comprises a pair of conductive layers and an organic luminescent function layer being interposed between the conductive layers, and wherein a same current flows through each of the light-emitting units. - View Dependent Claims (12)
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Specification