High efficiency organic light emitting device
First Claim
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1. An organic light emitting device comprising:
- a transparent substrate;
a reflection electrode;
an organic light emitting layer formed between the transparent substrate and the reflection electrode, the organic light emitting layer emitting light;
a transparent electrode formed between the transparent substrate and the organic light emitting layer; and
an optical path control layer formed between the transparent substrate and the transparent electrode, the optical path control layer increasing emission of light, a difference between refractive indices of the optical path control layer and the transparent electrode being no greater than 10% in the visible light region.
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Abstract
Provided is an organic light emitting device (OLED) having increased optical extraction efficiency. The OLED includes a transparent substrate, an optical path control layer made of an optical transmittance material on the transparent substrate, a transparent electrode, an organic light emitting layer that generated light, and a reflection electrode formed on the organic light emitting layer, which are sequentially stacked. The refractive index And thickness of the optical path control layer are optimized.
10 Citations
18 Claims
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1. An organic light emitting device comprising:
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a transparent substrate; a reflection electrode; an organic light emitting layer formed between the transparent substrate and the reflection electrode, the organic light emitting layer emitting light; a transparent electrode formed between the transparent substrate and the organic light emitting layer; and an optical path control layer formed between the transparent substrate and the transparent electrode, the optical path control layer increasing emission of light, a difference between refractive indices of the optical path control layer and the transparent electrode being no greater than 10% in the visible light region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An organic light emitting device comprising:
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a substrate; an optical path control layer for increasing emission of light; a reflection electrode formed between the substrate and the optical path control layer; an organic light emitting layer formed between the reflection electrode and the optical path control layer, the organic light emitting layer emitting light; and a transparent electrode formed between the organic light emitting layer and the optical path control layer, a difference between refractive indices of the optical path control layer and the transparent electrode being no greater than 10% in the visible light region. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification