Organic electroluminescent device including covered lower electrode
AssigneeSamsung Display Co., Ltd.
InventorsKazuhiko Hayashi, Takashi Fukuchi, Shinzo Tsuboi, Ichiro Fujieda
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Abstract
An emitting device in an organic electroluminescent device is disclosed, in which a lower electrode pattern is formed on a substrate, an emitting layer pattern is formed on the lower electrode pattern, and a transparent electrode is formed on the emitting layer pattern and an emitting body having a structure in which an organic thin film emits light when an application current is applied to it. The pattern of the transparent electrode completely covers and is larger than that of the lower electrode. The pattern of the transparent electrode is formed over the entire area of the pattern of the lower electrode.
Claims25
A light emitter, comprising:
- a substrate;
- a lower electrode formed on the upper surface of the substrate;
- a light emitting layer formed on the lower electrode;
- and
- a transparent electrode formed on the light emitting layer,
- wherein a portion of the transparent electrode is disposed directly on the upper surface of substrate and completely surrounds the light emitting layer and the lower electrode, and
- wherein the transparent electrode is larger than the lower electrode.
A light emitting element, comprising:
- a substrate;
- a light emitter formed on the upper surface of the substrate;
- and
- a current applying element coupled to the light emitter,
- wherein the light emitter comprises:
- a lower electrode formed on the upper surface of the substrate;
- a light emitting layer formed on the lower electrode;
- and
- a transparent electrode formed on the light emitting layer,
- wherein a portion of the transparent electrode is disposed directly on the upper surface of substrate and completely surrounds the light emitting layer and the lower electrode,
- wherein the transparent electrode is larger than the lower electrode, and
- wherein the light emitter emits light when current is applied to the light emitting layer.
A light emitter, comprising:
- a substrate;
- a lower electrode formed on the upper surface of the substrate;
- an electron transport layer formed on the lower electrode;
- a light emitting layer formed on the electron transport layer;
- and
- a transparent electrode formed on the light emitting layer,
- wherein the light emitting layer also functions as a hole injection layer,
- wherein a portion of the transparent electrode directly contacts the upper surface of the substrate and completely surrounds the light emitting layer and the lower electrode.
A light emitter, comprising:
- a lower electrode;
- a light emitting layer formed on the lower electrode;
- a hole injection layer formed on the light emitting layer;
- and
- a transparent electrode formed on the hole injection layer,
- wherein a portion of the light emitting layer extends beyond the perimeter of the transparent electrode, and
- wherein the transparent electrode is larger than the lower electrode.
A light emitter, comprising:
- a lower electrode;
- a light emitting layer formed on the lower electrode;
- a transparent electrode formed on the light emitting layer,
- wherein the light emitting layer extends beyond the perimeter of the transparent electrode, and
- wherein the transparent electrode is larger than the lower electrode.
Dependencies are inferred from the claim text.