JPS5640711A - Driving circuit for indicating meter using liquid crystal - Google Patents

Driving circuit for indicating meter using liquid crystal

Info

Publication number
JPS5640711A
JPS5640711A JP11618179A JP11618179A JPS5640711A JP S5640711 A JPS5640711 A JP S5640711A JP 11618179 A JP11618179 A JP 11618179A JP 11618179 A JP11618179 A JP 11618179A JP S5640711 A JPS5640711 A JP S5640711A
Authority
JP
Japan
Prior art keywords
liquid crystal
indicating meter
power supply
driving circuit
signal
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
JP11618179A
Other languages
Japanese (ja)
Other versions
JPS636806B2 (en
Inventor
Masahiro Kosaka
Hideaki Kawakami
Tetsuo Suehiro
Yoichi Takabori
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11618179A priority Critical patent/JPS5640711A/en
Publication of JPS5640711A publication Critical patent/JPS5640711A/en
Publication of JPS636806B2 publication Critical patent/JPS636806B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Indicating Measured Values (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE: To make unnecessary the electric power supply for the indicating meter, by obtaining the power supply for the liquid crystal display unit as the indicating meter through the use of electric signal to be displayed having a given bias.
CONSTITUTION: The input DC current signal It is a constant voltage at the parallel control type constant voltage circuit 6 for the power supply of the signal conversion circuit 7 and the liquid crystal display element 8. The change in the current signal It causes the voltage change Vin across the resistor 5a, and is input to the signal conversion circuit 7 for display 8.
COPYRIGHT: (C)1981,JPO&Japio
JP11618179A 1979-09-12 1979-09-12 Driving circuit for indicating meter using liquid crystal Granted JPS5640711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11618179A JPS5640711A (en) 1979-09-12 1979-09-12 Driving circuit for indicating meter using liquid crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11618179A JPS5640711A (en) 1979-09-12 1979-09-12 Driving circuit for indicating meter using liquid crystal

Publications (2)

Publication Number Publication Date
JPS5640711A true JPS5640711A (en) 1981-04-17
JPS636806B2 JPS636806B2 (en) 1988-02-12

Family

ID=14680802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11618179A Granted JPS5640711A (en) 1979-09-12 1979-09-12 Driving circuit for indicating meter using liquid crystal

Country Status (1)

Country Link
JP (1) JPS5640711A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110298A (en) * 1984-11-05 1986-05-28 株式会社山武 Instrument

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH058089Y2 (en) * 1988-08-22 1993-03-01

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936230A (en) * 1972-08-05 1974-04-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936230A (en) * 1972-08-05 1974-04-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110298A (en) * 1984-11-05 1986-05-28 株式会社山武 Instrument
JPH0542720B2 (en) * 1984-11-05 1993-06-29 Yamatake Honeywell Co Ltd

Also Published As

Publication number Publication date
JPS636806B2 (en) 1988-02-12

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