US5162160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent screen
Assignee: Pioneer Corp
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Filing: 1990-04-05
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Granted: 1992-11-10
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Expires: 2010-04-05
Abstract
Abstract A fluorescent screen includes a substrate made of a light-scattering material and a mixture of an organic fluorescent substance and a binder dispersed therein. Since the luminescent light is scattered by the light-scattering material, the light emitted from the screen is increased to a level higher than that of a conventional fluorescent screen to enhance brightness thereof.
Inventors
- 👤 Fumio Matsui
- 👤 Yasushi Murata
- 👤 Satoru Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:06
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2012; G21; G21K; G21K1/00; G21K1/10; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/20; H01J29/24; Y; Y10; Y10S; Y10S428/00; Y10S428/917; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2915; Y10T428/2933; Y10T442/00; Y10T442/20; Y10T442/259; Y10T442/2598
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
42 words
A fluorescent screen adapted for use as a display segment in a display device, comprising: a substrate made of a fibrous light-scattering material, and a filling mixture of an organic fluorescent substance and a binder evenly dispersed within said fibrous light-scattering material.
Claim 2
Dependent Claim
42 words
A fluorescent screen adapted for use as a display segment in a display device, comprising: a substrate made of a fibrous light-scattering material, and a filling mixture of an organic fluorescent substance and a binder evenly dispersed within said fibrous light-scattering material.
Claim 3
Dependent Claim
27 words
A fluorescent screen as claimed in claim 1, in which said fibrous light-scattering material is selected from the group consisting of a paper and a textile fabric.
Claim 4
Dependent Claim
14 words
A fluorescent screen as claimed in claim 2, in which said binder is polymethylmethacrylate.
Claim 5
Independent Claim
77 words
A method for manufacturing a fluorescent screen adapted for use as a display segment in a display device, comprising the steps of: preparing a substrate formed of a fibrous light-scattering material, preparing a uniform solution comprising a solvent and a mixture which comprises an organic fluorescent substance and a binder, immersing said substrate into said solution, and drying said substrate to remove said solvent therefrom so that said mixture is evenly dispersed within said fibrous light-scattering material.
Claim 6
Independent Claim
77 words
A method for manufacturing a fluorescent screen adapted for use as a display segment in a display device, comprising the steps of: preparing a substrate formed of a fibrous light-scattering material, preparing a uniform solution comprising a solvent and a mixture which comprises an organic fluorescent substance and a binder, immersing said substrate into said solution, and drying said substrate to remove said solvent therefrom so that said mixture is evenly dispersed within said fibrous light-scattering material.
Claim 7
Dependent Claim
31 words
A method for manufacturing a fluorescent screen as claimed in claim 4, in which said fibrous light-scattering material is selected from the group consisting of a paper and a textile fabric.
Claim 8
Dependent Claim
18 words
A method for manufacturing a fluorescent screen as claimed in claim 5, in which said binder is polymethylmethacrylate.
Claim 9
Dependent Claim
27 words
A fluorescent screen as claimed in claim 1, in which said fibrous light-scattering material is selected from the group consisting of knitted goods and a non-woven fabric.
Claim 10
Dependent Claim
31 words
A method for manufacturing a fluorescent screen as claimed in claim 4, in which said fibrous light-scattering material is selected from the group consisting of knitted goods and a non-woven fabric.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |