JPS54136297A - Drive circuit for liquid crystal display device - Google Patents

Drive circuit for liquid crystal display device

Info

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
Application number
JP4391178A
Other languages
Japanese (ja)
Other versions
JPS6143716B2 (en
Inventor
Hitomi Ayusawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP4391178A priority Critical patent/JPS54136297A/en
Publication of JPS54136297A publication Critical patent/JPS54136297A/en
Publication of JPS6143716B2 publication Critical patent/JPS6143716B2/ja
Granted legal-status Critical Current

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
JP4391178A 1978-04-14 1978-04-14 Drive circuit for liquid crystal display device Granted JPS54136297A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS6143716B2 (en) 1986-09-29

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