Multi-color light emission apparatus with organic electroluminescent device
First Claim
1. A multi-color light emission apparatus comprising a support substrate, an organic electroluminescence (EL) device disposed on the support substrate, and a fluorescent layer disposed to correspond to a transparent electrode or electrode of the organic EL device to absorb the light emitted from the organic EL device and to emit visible fluorescent light, wherein a transparent inorganic oxide substrate on which the fluorescent layer is placed is disposed between the organic EL device and the fluorescent layer in such a manner as to provide a gap between the fluorescent layer and the organic EL device, and the organic EL device is sealed using a sealing means between the transparent inorganic oxide substrate and the support substrate.
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Abstract
This invention provides a multi-color light emission apparatus wherein a transparent inorganic oxide substrate (4) is disposed between an organic EL device (1) and a fluorescent layer (3) in such a manner as to arrange the fluorescent layer (3) with a gap with the organic EL device (1), and the organic EL device (1) is sealed by sealing means (5) between the transparent inorganic oxide substrate (4) and a support substrate (2). The invention provides also a multi-color light emission apparatus wherein a transparent insulating inorganic oxide layer (12) having a thickness of 0.01 to 200 μm is interposed between the fluorescent layer (3) and the organic EL device (1). In this way, light emission life and angle-of-view characteristics can be improved.
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Citations
10 Claims
- 1. A multi-color light emission apparatus comprising a support substrate, an organic electroluminescence (EL) device disposed on the support substrate, and a fluorescent layer disposed to correspond to a transparent electrode or electrode of the organic EL device to absorb the light emitted from the organic EL device and to emit visible fluorescent light, wherein a transparent inorganic oxide substrate on which the fluorescent layer is placed is disposed between the organic EL device and the fluorescent layer in such a manner as to provide a gap between the fluorescent layer and the organic EL device, and the organic EL device is sealed using a sealing means between the transparent inorganic oxide substrate and the support substrate.
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6. A multi-color light emission apparatus comprising a transparent support substrate, fluorescent layers separately disposed on the transparent support substrate on the same plane, and an organic electroluminescence (EL) device disposed on or above the fluorescent layers, the fluorescent layers being disposed to correspond to a transparent electrode or electrode of the organic EL device so that each of the fluorescent layers absorbs the light emitted from the organic EL device and emits different visible fluorescent light, wherein a transparent and insulating inorganic oxide layer with a thickness of from 0.01 to 200 μ
- m is interposed between the fluorescent layer and the organic EL device wherein at least a transparent protective layer of the fluorescent layers and a transparent adhesive layer are disposed between the fluorescent layers and the transparent and insulating inorganic oxide layer.
- View Dependent Claims (7, 8, 9, 10)
Specification