JPS54107296A - Display unit for bar graph - Google Patents

Display unit for bar graph

Info

Publication number
JPS54107296A
JPS54107296A JP1347378A JP1347378A JPS54107296A JP S54107296 A JPS54107296 A JP S54107296A JP 1347378 A JP1347378 A JP 1347378A JP 1347378 A JP1347378 A JP 1347378A JP S54107296 A JPS54107296 A JP S54107296A
Authority
JP
Japan
Prior art keywords
electrode
circuit
depending
block
segment
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
JP1347378A
Other languages
Japanese (ja)
Other versions
JPS6247245B2 (en
Inventor
Masahiro Kosaka
Keiji Nagae
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 JP1347378A priority Critical patent/JPS54107296A/en
Priority to DE19792938821 priority patent/DE2938821A1/en
Priority to PCT/JP1979/000025 priority patent/WO1979000676A1/en
Priority to GB7934451A priority patent/GB2036403A/en
Publication of JPS54107296A publication Critical patent/JPS54107296A/en
Publication of JPS6247245B2 publication Critical patent/JPS6247245B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Indicating Measured Values (AREA)

Abstract

PURPOSE: To simplify the drive circuit, by operating the shift register with the circuit generating the number of pulses depending on the input amount and the count circuit, and by generating the signal to select the voltage fed to the block and segment electrode.
CONSTITUTION: The display unit is constituted with the block electrode split in m sets, segment electrode having n sets of segments to each block by opposing to the electrode, pulse generation circuit 21 outputting the number of pulses depending on the input amount to be displayed, count circuit 22 outputting the pulse signal depending on the value dividing the output of the circuit 21 with the number of segments, segment electrode drive circuit 25 driven with the voltage fed to each electrode at the segment side depending on the output of the circuits 21 and 22, shift register 23 selecting the state of electrode at block side depending on the output of the circuit 22, and the drive circuit having the multiplexer 24 applying voltage to the block side electrode depending on the content of the reigster 23.
COPYRIGHT: (C)1979,JPO&Japio
JP1347378A 1978-02-08 1978-02-10 Display unit for bar graph Granted JPS54107296A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1347378A JPS54107296A (en) 1978-02-10 1978-02-10 Display unit for bar graph
DE19792938821 DE2938821A1 (en) 1978-02-08 1979-02-02 CIRCUIT FOR DRIVING ELECTRO-OPTICAL DISPLAY UNIT
PCT/JP1979/000025 WO1979000676A1 (en) 1978-02-08 1979-02-02 Circuit for driving electro-optical display unit
GB7934451A GB2036403A (en) 1978-02-08 1979-02-02 Circuit for driving electro- optical display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1347378A JPS54107296A (en) 1978-02-10 1978-02-10 Display unit for bar graph

Publications (2)

Publication Number Publication Date
JPS54107296A true JPS54107296A (en) 1979-08-22
JPS6247245B2 JPS6247245B2 (en) 1987-10-07

Family

ID=11834092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1347378A Granted JPS54107296A (en) 1978-02-08 1978-02-10 Display unit for bar graph

Country Status (1)

Country Link
JP (1) JPS54107296A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837514U (en) * 1981-09-08 1983-03-11 三菱自動車工業株式会社 fuel gauge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837514U (en) * 1981-09-08 1983-03-11 三菱自動車工業株式会社 fuel gauge

Also Published As

Publication number Publication date
JPS6247245B2 (en) 1987-10-07

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