EP0809420A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multi-color light emission apparatus and method for production thereof
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1996-02-05
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Granted: —
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Expires: 2016-02-05
Abstract
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.
Inventors
- 👤 Mitsuru Eida
- 👤 Masahide Matsuura
- 👤 Hiroshi Tokailin
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 19:43
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: 11
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
26 words
The multi-color light emission apparatus according to Claim 1, wherein the fluorescent layers are separately disposed on the transparent inorganic oxide substrate on the same plane.
Claim 3
Dependent Claim
31 words
The multi-color light emission apparatus according to Claim 1 or 2, wherein a transparent protective layer of the fluorescent layers and/or a transparent substrate are further disposed on the fluorescent layer.
Claim 4
Dependent Claim
34 words
The multi-color light emission apparatus according to any one of Claims 1 to 3, wherein the plate thickness of the transparent inorganic oxide substrate is in a range of from 1 to 200 µm.
Claim 5
Dependent Claim
27 words
The multi-color light emission apparatus according to any one of Claims 1 to 4, wherein the transparent inorganic oxide substrate is made of a transparent glass plate.
Claim 6
Dependent Claim
104 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.
Claim 7
Dependent Claim
37 words
The multi-color light emission apparatus according to Claim 6, wherein a transparent protective layer of the fluorescent layers and/or a transparent adhesive layer are disposed between the fluorescent layer and the transparent and insulating inorganic oxide layer.
Claim 8
Dependent Claim
28 words
The multi-color light emission apparatus according to Claim 6 or 7, wherein the transparent and insulating inorganic oxide layer is made of a transparent and insulating glass plate.
Claim 9
Dependent Claim
37 words
The multi-color light emission apparatus according to Claim 6 or 7, 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 10
Dependent Claim
60 words
The multi-color light emission apparatus according to Claim 6 or 7, 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 11
Independent Claim
238 words
A method for manufacturing a multi-color light emission apparatus by separately disposing, on a transparent support substrate, a fluorescent layer absorbing the light emitted from an organic EL device and emitting different visible fluorescent light on the same plane and by disposing the organic EL device on or above the fluorescent layer so that a transparent electrode or electrode of the organic EL device corresponds to the fluorescent layer, comprising: (A) a step of separately disposing the fluorescent layers on the transparent support substrate on the same plane; (B) a step of disposing a transparent fluorescent member-protective layer and/or a transparent adhesive layer on the fluorescent layers and on the transparent support substrate on which the fluorescent layers are separately disposed; (C) a step of bonding a transparent and insulating glass plate with a thickness of from 1 to 200µm, in which a transparent electrode is formed or is to be formed, or a member produced by forming a film made 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, to the transparent fluorescent member-protective layer or to a transparent adhesive layer; and (D) a step of laminating an organic compound layer and electrodes of the organic EL device in sequence on the glass plate in which the transparent electrode is formed.
References Cited (Backward Citations)
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