JPS5461823A - Ad conversion system of liquid-crystal display unit - Google Patents
Ad conversion system of liquid-crystal display unitInfo
- Publication number
- JPS5461823A JPS5461823A JP12841077A JP12841077A JPS5461823A JP S5461823 A JPS5461823 A JP S5461823A JP 12841077 A JP12841077 A JP 12841077A JP 12841077 A JP12841077 A JP 12841077A JP S5461823 A JPS5461823 A JP S5461823A
- Authority
- JP
- Japan
- Prior art keywords
- interval
- liquid
- display unit
- crystal display
- conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
PURPOSE: To obtain a low-frequency A/D conversion part, by composing data, within single scan of a liquid-crystal matrix, of video signals in two continuous horizontal synchronizing signals.
CONSTITUTION: Interval C of 2H from continuous synchronizing signal N0 till N2 is an A/D conversion interval for the 1st video signal, and also a memory interval of one shift register. Further, interval D of 2H from synchronizing signal N3 to N5 is a D/C conversion interval for the 2nd video signal, and also a memory interval of the other shift register. In an interval between signals N0 and N1, sampling is done, for example, 54 times at t1 c, t2 c...t54 c, and in an interval between N1 and N2, the same sampling is also done to compose data within single scan of a liquid- crystal matrix. Consequently, a low-frequency A/D conversion part can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12841077A JPS5461823A (en) | 1977-10-26 | 1977-10-26 | Ad conversion system of liquid-crystal display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12841077A JPS5461823A (en) | 1977-10-26 | 1977-10-26 | Ad conversion system of liquid-crystal display unit |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2565287A Division JPS62271570A (en) | 1987-02-06 | 1987-02-06 | Ad conversion system for liquid crystal display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5461823A true JPS5461823A (en) | 1979-05-18 |
JPS6114708B2 JPS6114708B2 (en) | 1986-04-19 |
Family
ID=14984077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12841077A Granted JPS5461823A (en) | 1977-10-26 | 1977-10-26 | Ad conversion system of liquid-crystal display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5461823A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5250620A (en) * | 1975-10-21 | 1977-04-22 | Matsushita Electric Ind Co Ltd | Image display device |
-
1977
- 1977-10-26 JP JP12841077A patent/JPS5461823A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5250620A (en) * | 1975-10-21 | 1977-04-22 | Matsushita Electric Ind Co Ltd | Image display device |
Also Published As
Publication number | Publication date |
---|---|
JPS6114708B2 (en) | 1986-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5335313A (en) | Picture image communication system | |
JPS53105114A (en) | Jitter measurement system | |
JPS5461422A (en) | Color graphic display unit | |
JPS54139422A (en) | Picture recording system | |
JPS5461823A (en) | Ad conversion system of liquid-crystal display unit | |
JPS5246881A (en) | Ultrasonic video device | |
EP0500100A3 (en) | Video signal synthesizing system for synthesizing system's own signal and external signal | |
JPS527624A (en) | Record and read system of color-resolved picture signal | |
JPS53148421A (en) | Level display circuit | |
JPS5412620A (en) | Picture information transmission recording system | |
JPS5542489A (en) | Multiplex information receiver | |
JPS52119013A (en) | Regenerating unit for picture signal | |
JPS5570167A (en) | Scanning picture recording system | |
JPS54138342A (en) | One line transmission system of rgb color video signal in rgb color character display unit | |
JPS53135613A (en) | Signal recording system | |
JPS5437527A (en) | Receiver for still picture | |
JPS53105118A (en) | Scrolling display system for picture | |
JPS54139428A (en) | Picture element data generation circuit | |
JPS5412621A (en) | Picture signal process system | |
JPS53116804A (en) | Signal recording and reproducing system of optical type | |
JPS5391520A (en) | Signal regenerative system | |
JPS53109427A (en) | Picture synthesizing system | |
JPS52150612A (en) | Digital signal transmission device | |
JPS54139332A (en) | Static picture transmission system | |
JPS5316610A (en) | Dropout signal compensation circuit |