US3848086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture information display device
Assignee: Japan Broadcasting Corp
•
Filing: 1972-09-12
•
Granted: 1974-11-12
•
Expires: 1992-09-12
Abstract
Abstract A picture information display comprising a combination of a gasdischarge display, having separate display and scanning functions, and an MOS series-parallel converter, in which MOS analog gates, for all of the bits in an MOS shift-register, and associated analog memory capacitors are provided, for television picture-information signals to realize a flat-panel TV receiver.
Inventors
- 👤 T Fujio
- 👤 H Ikeda
- 👤 T Kamegaya
- 👤 T Hirashima
- 👤 S Iwamura
- 👤 T Sakal
- 👤 I Ohishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:03
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H04N3/125
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
191 words
A picture information display device comprising: a gas discharge display device of a self-scanned panel display type having a separate display function and scanning function, said discharge display device not being provided with an inherent memory; an analog sample and hold circuit including a plurality of sample and hold units, each said unit having a memory capacitor and an MOS transistor gate driven by an n-bit shift register having n output terminals which are integrated on a semiconductor substrate for sampling and holding a picture information signal, which includes half-tone of the picture, for each picture element; a means for effecting luminancE modulation of each line of said gas discharge display device by continuously controlling gas discharge current according to the picture information signal sampled by said analog sample and hold circuit corresponding to the respective picture element and stored in said memory capacitor for reproduction of said picture information signal; and a means for reproducing said picture information signal from serial to parallel format by sequentially displaying said line of the gas discharge display device in line at a time format by use of said analog sample and hold circuit.
Claim 2
Dependent Claim
191 words
A picture information display device comprising: a gas discharge display device of a self-scanned panel display type having a separate display function and scanning function, said discharge display device not being provided with an inherent memory; an analog sample and hold circuit including a plurality of sample and hold units, each said unit having a memory capacitor and an MOS transistor gate driven by an n-bit shift register having n output terminals which are integrated on a semiconductor substrate for sampling and holding a picture information signal, which includes half-tone of the picture, for each picture element; a means for effecting luminancE modulation of each line of said gas discharge display device by continuously controlling gas discharge current according to the picture information signal sampled by said analog sample and hold circuit corresponding to the respective picture element and stored in said memory capacitor for reproduction of said picture information signal; and a means for reproducing said picture information signal from serial to parallel format by sequentially displaying said line of the gas discharge display device in line at a time format by use of said analog sample and hold circuit.
Claim 3
Dependent Claim
65 words
A picture information display device as claimed in claim 1 wherein the MOS transistor gate includes a source electrode connected to a respective one of said n output terminals and a gate input terminal connected to a source of image signal, and the memory capacitor is connected to an output line of the gate transistor for supplying a control signal to the luminance modulation means.
Claim 4
Dependent Claim
41 words
A picture information display device as claimed in claim 2 wherein the luminance modulation means comprises a driving transistor having a control electrode supplied with said control signal and an output circuit including a photoluminance element of which luminance is controlled.
References Cited (Backward Citations)
US3021387A
Cited
US3564135A
Cited
US3590156A
Cited
US3702985A
Cited
US3683364A
Cited
US3696393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |