Patent US4594528A successfully refreshed from Google Patents.
US4594528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film electroluminescence device and method of manufacturing the same
Assignee: Toshiba Corp
•
Filing: 1983-09-16
•
Granted: 1986-06-10
•
Expires: 2003-09-16
Abstract
Abstract A thin film electroluminescence device which comprises a pair of electrodes, at least one of which is transparent, and a light-emitting layer consisting essentially of oxygen-containing amorphous hydrogenated silicon carbide and being interposed between said paired electrodes.
Inventors
- 👤 Yoshito Kawakyu
- 👤 Toyoki Higuchi
- 👤 Hiroshi Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:42
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/81; H10H20/822; H10H20/826; H10H20/8262; C; C09; C09K; C09K11/00; C09K11/08; C09K11/65; H05; H05B; H05B33/00; H05B33/12; H05B33/14; Y; Y10; Y10S; Y10S438/00; Y10S438/931
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
54 words
An electroluminescence device which comprises a pair of electrodes, at least one of which is transparent, and a light-emitting layer consisting essentially of oxygen-containing amorphous hydrogenated silicon carbide and being interposed between the paired electrodes, wherein the ratio O/(Si+C+O) of the amorphous hydrogenated silicon carbide is so determined as to satisfy the formula: 0.05≦O/(Si+C+O).
Claim 2
Dependent Claim
54 words
An electroluminescence device which comprises a pair of electrodes, at least one of which is transparent, and a light-emitting layer consisting essentially of oxygen-containing amorphous hydrogenated silicon carbide and being interposed between the paired electrodes, wherein the ratio O/(Si+C+O) of the amorphous hydrogenated silicon carbide is so determined as to satisfy the formula: 0.05≦O/(Si+C+O).
Claim 3
Dependent Claim
21 words
The electroluminescence device according to claim 1, wherein the ratio O/(Si+C+O) is so determined as to satisfy the following formula: 0.3≦O/(Si+C+O)≦0.55
Claim 4
Dependent Claim
20 words
The electroluminescence device according to claim 2, wherein ratio O/(Si+C+O) is so determined as to satisfy the following formula: 0.35≦O/(Si+C+O)≦0.5
Claim 5
Dependent Claim
38 words
An electroluminescence device which comprises: a glass substrate; a transparent electrode deposited on said glass substrate; a light emitting layer consisting essentially of an oxygen-containing amorphous hydrogenated silicon carbide; and a metal electrode deposited on said light-emitting layer.
Claim 6
Dependent Claim
38 words
An electroluminescence device which comprises: a glass substrate; a transparent electrode deposited on said glass substrate; a light emitting layer consisting essentially of an oxygen-containing amorphous hydrogenated silicon carbide; and a metal electrode deposited on said light-emitting layer.
Claim 7
Dependent Claim
28 words
The electroluminescence device according to claim 4, wherein an insulating film is interposed between the transparent electrode and light-emitting layer and/or between said light-emitting layer and metal electrode.
Claim 8
Independent Claim
68 words
A method of manufacturing a thin film electroluminescence device, which comprises the step of depositing a light-emitting layer by decomposing a feed gas containing silicon, carbon, hydrogen and oxygen, by means of glow discharge, thereby producing a light-emitting layer which consists essentially of oxygen-containing amorphous hydrogenated silicon carbide, and wherein the ratio O/(Si+C+O) of the amorphous hydrogenated silicon carbide is so determined as to satisfy the formula: 0.05≦O/(Si+C+O).
Claim 9
Independent Claim
68 words
A method of manufacturing a thin film electroluminescence device, which comprises the step of depositing a light-emitting layer by decomposing a feed gas containing silicon, carbon, hydrogen and oxygen, by means of glow discharge, thereby producing a light-emitting layer which consists essentially of oxygen-containing amorphous hydrogenated silicon carbide, and wherein the ratio O/(Si+C+O) of the amorphous hydrogenated silicon carbide is so determined as to satisfy the formula: 0.05≦O/(Si+C+O).
Claim 10
Dependent Claim
25 words
The method according to claim 6, wherein said feed gas mainly consists of a gas containing silicon, carbon and hydrogen, as well an oxygen gas.
Claim 11
Dependent Claim
47 words
The method according to claim 6, wherein the gas containing silicon, carbon and hydrogen is one selected from the group consisting of: tetramethylsilane, triethylsilane and a gaseous mixture of silane and methane, a gaseous mixture of silane and ethane, and a gaseous mixture of silane and propane.
Claim 12
Dependent Claim
18 words
The method of claim 6, wherein the ratio O/Si+C+O) is so determined as to satisfy the formula: 0.3≦O/(Si+C+O)≦0.55.
References Cited (Backward Citations)
DE109522C
Cited
US2809316A
Cited
US3009834A
Cited
US3986193A
Cited
GB1435466A
Cited
US4492810A
Cited
US4289822A
Cited
US4464415A
Cited
GB2094289A
Cited
GB2094550A
Cited
EP0058543A1
Cited
US4478654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-09 | 1989-12-09 | 1990-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-09 | 1993-12-09 | 1994-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-09 | 1997-12-09 | 1998-06-10 | $7700.00 | Window Closed / Lapsed |