JPS54136297A - Drive circuit for liquid crystal display device - Google Patents
Drive circuit for liquid crystal display deviceInfo
- Publication number
- JPS54136297A JPS54136297A JP4391178A JP4391178A JPS54136297A JP S54136297 A JPS54136297 A JP S54136297A JP 4391178 A JP4391178 A JP 4391178A JP 4391178 A JP4391178 A JP 4391178A JP S54136297 A JPS54136297 A JP S54136297A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- gate
- outputted
- input
- digit
- 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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electric Clocks (AREA)
- Liquid Crystal (AREA)
Abstract
PURPOSE: To enable to confirm the operation more than the response speed, by flickering the display digit at the speed within the response range, when a signal having the speed more than the response speed of the device is displayed.
CONSTITUTION: In case of a stop watch, the OR gate 11 inputting the signal inputs 1 and 2 of 1/100 second digit and the start stop signal 3, is 1 for the output when the watch is started and the output of 3 is 1, and the signal in 16 Hz of the input 4 is outputted from the OR gate 12. Accordingly, the output of the AND gate 10 is a 16 Hz signal, and if this signal has 50% of duty, the 32 Hz signal of the input 5 is outputted with inversion for the segment outputs 6 and 7 with the EX-OR 9 every 31.25 msec, the display unit repeats illumination and distinguish every 31.25 msec and the operation of 1/100 digit can be confirmed. When the watch is stopped and the input 3 is 0, the signal of 16 Hz is not outputted from the gate 12, and the signal of the inputs 1,2 is outputted from the gate 11, and the content of count at that time is displayed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4391178A JPS54136297A (en) | 1978-04-14 | 1978-04-14 | Drive circuit for liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4391178A JPS54136297A (en) | 1978-04-14 | 1978-04-14 | Drive circuit for liquid crystal display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54136297A true JPS54136297A (en) | 1979-10-23 |
JPS6143716B2 JPS6143716B2 (en) | 1986-09-29 |
Family
ID=12676889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4391178A Granted JPS54136297A (en) | 1978-04-14 | 1978-04-14 | Drive circuit for liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54136297A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111343854B (en) * | 2017-12-20 | 2022-08-12 | 株式会社久保田 | Work vehicle, travel route selection system for work vehicle, and travel route calculation system |
-
1978
- 1978-04-14 JP JP4391178A patent/JPS54136297A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6143716B2 (en) | 1986-09-29 |
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