US5909081A
Expired / Lapsed
US
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Multi-color light emission apparatus with organic electroluminescent device
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1996-02-05
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Granted: 1999-06-01
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Expires: 2016-02-05
Abstract
Abstract PCT No. PCT/JP96/00233 Sec. 371 Date Aug. 6, 1997 Sec. 102(e) Date Aug. 6, 1997 PCT Filed Feb. 5, 1996 PCT Pub. No. WO96/25020 PCT Pub. Date Aug. 15, 1996This 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 mu m 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.
Inventors
- 👤 Mitsuru Eida
- 👤 Masahide Matsuura
- 👤 Hiroshi Tokailin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:15
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/10; H05B33/22; H10; H10K; H10K50/00; H10K50/80; H10K50/84; H10K50/841; H10K50/844; H10K59/00; H10K59/80; H10K59/87; H10K59/871; H10K59/873; G; G09; G09G; G09G3/00; G09G3/20; G09G3/22; G09G3/30; G09G3/32; G09G3/3208; G09G3/3216; H01; H01H; H01H2219/00; H01H2219/036; H01H2219/053; H10K50/86; H10K50/865; H10K59/30; H10K59/38; H10K59/8791; H10K59/8792; Y; Y10; Y10S; Y10S428/00; Y10S428/917
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
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.
Claim 2
Dependent Claim
116 words
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.
Claim 3
Dependent Claim
26 words
The multi-color light emission apparatus according to claim 1, wherein the fluorescent layer is separately disposed on the transparent inorganic oxide substrate on the same plane.
Claim 4
Dependent Claim
33 words
The multi-color light emission apparatus according to claim 1 or 2, wherein at least a transparent protective layer of the fluorescent layer and a transparent substrate are farther disposed on the fluorescent layer.
Claim 5
Dependent Claim
28 words
The multi-color light emission apparatus according to claim 1, wherein the thickness of the transparent inorganic oxide substrate is in a range of from 1 to 200 μm.
Claim 6
Dependent Claim
22 words
The multi-color light emission apparatus according to claim 1, wherein the transparent inorganic oxide substrate is made of a transparent glass plate.
Claim 7
Dependent Claim
134 words
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 μm 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.
Claim 8
Dependent Claim
134 words
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 μm 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.
Claim 9
Dependent Claim
26 words
The multi-color light emission apparatus according to claim 6, wherein the transparent and insulating inorganic oxide layer is made of a transparent and insulating glass plate.
Claim 10
Dependent Claim
35 words
The multi-color light emission apparatus according to claim 6, wherein the transparent inorganic oxide layer is made from one or more compounds selected from a group consisting of silicon oxide, aluminum oxide, and titanium oxide.
Claim 11
Dependent Claim
58 words
The multi-color light emission apparatus according to claim 6, wherein the transparent and insulating inorganic oxide layer is produced by forming a film of one or more compounds selected from a group consisting of silicon oxide, aluminum oxide, and titanium oxide on at least one of the surface or back face of a transparent and insulating glass plate.
Claim 12
Dependent Claim
21 words
The multi-color light emission apparatus according to claim 6, wherein the transparent and insulating inorganic layer contains mainly an inorganic oxide.
References Cited (Backward Citations)
US5294870A
Cited
US5693956A
Cited
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