US4694348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of driving liquid crystal display panel of TV receiver
Assignee: Citizen Watch Co Ltd
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Filing: 1986-06-09
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Granted: 1987-09-15
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Expires: 2006-06-09
Abstract
Abstract A method of driving a liquid crystal display panel of a TV receiver whereby of each set of six scanning lines consisting of three successive lines of one field and three corresponding lines of the succeeding field, three lines are displayed by display elements driven by one scanning electrode and the remaining three lines by display elements driven by an immediately adjacent scanning electrode. One of the three lines to be displayed by the action of each electrode may be omitted. An increase in display resolution of approximately 4/3 is attained, by comparison with a simple prior art drive method.
Inventors
- 👤 Kiyoshi Kamiya
- 👤 Atsushi Shiraishi
- 👤 Fuminori Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:04
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H04N3/127; G; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3611; G09G2310/00; G09G2310/02; G09G2310/0224
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
165 words
A method of driving a liquid crystal display panel of a television receiver having a plurality of scanning electrodes, for displaying data of a composite video signal with increased resolution by displaying six scanning lines of the video signal by two rows of liquid crystal display elements, whereby of a set of six scanning lines comprising 3 successive scanning lines of a first field of said composite video signal and 3 successive scanning lines of a second field of said composite video signal which coincide with or are displaced by one scanning line pitch from said 3 successive scanning lines of the first field in one frame of said composite video signal, 3 lines of said six set of scanning lines are displayed by liquid crystal display elements driven by a first one of said scanning electrodes and the remaining three lines of said set of six scanning lines are displayed by liquid crystal display elements driven by a second one of said scanning electrodes.
Claim 2
Independent Claim
165 words
A method of driving a liquid crystal display panel of a television receiver having a plurality of scanning electrodes, for displaying data of a composite video signal with increased resolution by displaying six scanning lines of the video signal by two rows of liquid crystal display elements, whereby of a set of six scanning lines comprising 3 successive scanning lines of a first field of said composite video signal and 3 successive scanning lines of a second field of said composite video signal which coincide with or are displaced by one scanning line pitch from said 3 successive scanning lines of the first field in one frame of said composite video signal, 3 lines of said six set of scanning lines are displayed by liquid crystal display elements driven by a first one of said scanning electrodes and the remaining three lines of said set of six scanning lines are displayed by liquid crystal display elements driven by a second one of said scanning electrodes.
Claim 3
Dependent Claim
52 words
A drive method according to claim 1, whereby one of said 3 scanning lines to be scanned by said first scanning electrode during said first field is omitted from being displayed and whereby one of said remaining 3 scanning lines of said set of six scanning lines is omitted from being displayed.
Claim 4
Independent Claim
129 words
A method of driving a liquid crystal display panel of a television receiver having a plurality of scanning electrodes, for displaying data of a composite video signal, whereby of a set of 6 scanning lines comprising 3 successive scanning lines of a first field of a television signal and 3 successive scanning lines of a second field which coincide with or are displaced by one scanning line pitch from said 3 successive scanning lines of the first field, in one frame of said composite video signal, at least two and not more than three lines of said set of 6 scanning lines are displayed by each of two rows of liquid crystal display elements driven by a first and a second one of said plurality of scanning electrodes respectively.
Claim 5
Independent Claim
129 words
A method of driving a liquid crystal display panel of a television receiver having a plurality of scanning electrodes, for displaying data of a composite video signal, whereby of a set of 6 scanning lines comprising 3 successive scanning lines of a first field of a television signal and 3 successive scanning lines of a second field which coincide with or are displaced by one scanning line pitch from said 3 successive scanning lines of the first field, in one frame of said composite video signal, at least two and not more than three lines of said set of 6 scanning lines are displayed by each of two rows of liquid crystal display elements driven by a first and a second one of said plurality of scanning electrodes respectively.
Claim 6
Dependent Claim
103 words
A drive method according to claim 3 in which sampling of said television signal is performed whereby only an odd-numbered one of said 3 successice scanning lines of the first field and an odd-numbered one of said 3 successive scanning lines of the second field are displayed by said liquid crystal display elements driven by said first scanning electrode, and only the remaining odd-numbered one of said 3 successive scanning lines of the first field and an even-numbered one of said 3 successive scanning lines of the second field are displayed by said liquid crystal display elements driven by said second scanning electrode.
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) | 1990-09-14 | 1991-03-16 | 1991-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-14 | 1995-03-16 | 1995-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-14 | 1999-03-16 | 1999-09-15 | $7700.00 | Window Closed / Lapsed |