US3090828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for large-area display of information
Assignee: TDK Micronas GmbH
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Filing: 1960-08-24
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Granted: 1963-05-21
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Expires: 1980-08-24
Abstract
No abstract record available.
Inventors
- 👤 George W Bain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:54
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/008; G03; G03G; G03G15/00; G03G15/05; H; H04; H04N; H04N3/00; H04N3/10; H04N3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A SYSTEM FOR LARGE AREA TWO-DIMENSIONAL DISPLAY OF INFORMATION COMPRISING: MEANS FOR CONVERTING THE INFORMATION TO BE DISPLAYED INTO A TIME-BASED ELECTRICAL SIGNAL; A RELATIVELY THIN SHEET OF DIELECTRIC MATERIAL; MEANS INCLUDING A PLURALITY OF ELECTRODES IN SPACED APART ALIGNMENT ALONG ONE DIMENSION OF SAID SHEET AND COOPERATING THEREWITH TO FORM INCREMENTAL ELECTROSTATIC CHARGES THEREON IN DOT FORM WHEN SAID ELECTRODES ARE RESPECTIVELY ENERGIZED; MEANS FOR MOVING SAID SHEET WITH RESPECT TO SAID ELECTRODES ALONG THE OTHER DIMENSION OF SAID SHEET; SWITCHING MEANS FOR SEQUENTIALLY COUPLING SAID ELECTRODES TO SAID CONVERTING MEANS WHEREBY SAID ELECTRODES ARE RESPECTIVELY ENERGIZED RESPONSIVE TO THE INSTANTANEOUS LEVEL OF SAID SIGNAL; AND MEANS FOR APPLYING CHARGED TONER MATERIAL TO SAID SHEET AFTER IT PASSES SAID ELECTRODES; SAID SWITCHING MEANS COMPRISING A PLURALITY OF PHOTOSENSITIVE SWITCHING MEANS RESPECTIVELY ELECTRICALLY COUPLING SAID ELECTRODES TO SAID CONVERTING MEANS RESPONSIVE TO IMPINGEMENT OF LIGHT THEREON; AND MEANS FOR SEQUENTIALLY SCANNING AND PHOTOSENSITIVE MEANS WITH A BEAM OF LIGHT.
Claim 2
Independent Claim
159 words
A SYSTEM FOR LARGE AREA TWO-DIMENSIONAL DISPLAY OF INFORMATION COMPRISING: MEANS FOR CONVERTING THE INFORMATION TO BE DISPLAYED INTO A TIME-BASED ELECTRICAL SIGNAL; A RELATIVELY THIN SHEET OF DIELECTRIC MATERIAL; MEANS INCLUDING A PLURALITY OF ELECTRODES IN SPACED APART ALIGNMENT ALONG ONE DIMENSION OF SAID SHEET AND COOPERATING THEREWITH TO FORM INCREMENTAL ELECTROSTATIC CHARGES THEREON IN DOT FORM WHEN SAID ELECTRODES ARE RESPECTIVELY ENERGIZED; MEANS FOR MOVING SAID SHEET WITH RESPECT TO SAID ELECTRODES ALONG THE OTHER DIMENSION OF SAID SHEET; SWITCHING MEANS FOR SEQUENTIALLY COUPLING SAID ELECTRODES TO SAID CONVERTING MEANS WHEREBY SAID ELECTRODES ARE RESPECTIVELY ENERGIZED RESPONSIVE TO THE INSTANTANEOUS LEVEL OF SAID SIGNAL; AND MEANS FOR APPLYING CHARGED TONER MATERIAL TO SAID SHEET AFTER IT PASSES SAID ELECTRODES; SAID SWITCHING MEANS COMPRISING A PLURALITY OF PHOTOSENSITIVE SWITCHING MEANS RESPECTIVELY ELECTRICALLY COUPLING SAID ELECTRODES TO SAID CONVERTING MEANS RESPONSIVE TO IMPINGEMENT OF LIGHT THEREON; AND MEANS FOR SEQUENTIALLY SCANNING AND PHOTOSENSITIVE MEANS WITH A BEAM OF LIGHT.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |