JPS5482928A - Liquid crystal drive system - Google Patents

Liquid crystal drive system

Info

Publication number
JPS5482928A
JPS5482928A JP15103177A JP15103177A JPS5482928A JP S5482928 A JPS5482928 A JP S5482928A JP 15103177 A JP15103177 A JP 15103177A JP 15103177 A JP15103177 A JP 15103177A JP S5482928 A JPS5482928 A JP S5482928A
Authority
JP
Japan
Prior art keywords
drive
liquid crystal
dynamic
switch
circuit
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
JP15103177A
Other languages
Japanese (ja)
Other versions
JPS6116989B2 (en
Inventor
Kenzo Endo
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer Co 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP15103177A priority Critical patent/JPS5482928A/en
Publication of JPS5482928A publication Critical patent/JPS5482928A/en
Publication of JPS6116989B2 publication Critical patent/JPS6116989B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Electric Clocks (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE: To perform effective display, by constituting the drive system of liquid crystal display with any system of dynamic and static drive system and by designating for the selection for the both systems.
CONSTITUTION: The display unit 39 constituted with the liquid crystal bodies 40 to 45 arranging the electrodes displayed with any of the dynamic and static drive systems, and the counter 23 consisting of the counters 24 to 28 and the decoders 29 to 32 feeding the pulse of the oscillation circuit 21 generating the reference pulse converted from second information to hour information via the frequency dividing circuit 22 to the selection circuits 33 to 37, are provided. The drive signal is fed from the drive signal generation circuit 38 to the selection circuits 33 to 37 and constitution is made that the selection circuits 33 to 37 are selectively switched according to the potential of the junction A of the switch 13 and the night illumination lamp 14 with the circuit 38, which corresponds to the dynamic drive when the switch 13 is open and the static drive when the switch 13 is closed.
COPYRIGHT: (C)1979,JPO&Japio
JP15103177A 1977-12-15 1977-12-15 Liquid crystal drive system Granted JPS5482928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15103177A JPS5482928A (en) 1977-12-15 1977-12-15 Liquid crystal drive system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15103177A JPS5482928A (en) 1977-12-15 1977-12-15 Liquid crystal drive system

Publications (2)

Publication Number Publication Date
JPS5482928A true JPS5482928A (en) 1979-07-02
JPS6116989B2 JPS6116989B2 (en) 1986-05-02

Family

ID=15509779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15103177A Granted JPS5482928A (en) 1977-12-15 1977-12-15 Liquid crystal drive system

Country Status (1)

Country Link
JP (1) JPS5482928A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160989A (en) * 1982-03-19 1983-09-24 沖電気工業株式会社 Liquid crystal drive circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160989A (en) * 1982-03-19 1983-09-24 沖電気工業株式会社 Liquid crystal drive circuit
JPH0257314B2 (en) * 1982-03-19 1990-12-04 Oki Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS6116989B2 (en) 1986-05-02

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