JPS5284776A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5284776A
JPS5284776A JP8253076A JP8253076A JPS5284776A JP S5284776 A JPS5284776 A JP S5284776A JP 8253076 A JP8253076 A JP 8253076A JP 8253076 A JP8253076 A JP 8253076A JP S5284776 A JPS5284776 A JP S5284776A
Authority
JP
Japan
Prior art keywords
liquid crystal
display device
crystal display
electronic watch
prolonging
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.)
Pending
Application number
JP8253076A
Other languages
Japanese (ja)
Inventor
Shigeru Morokawa
Katsuo Nishimura
Ryuichi Maruka
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP8253076A priority Critical patent/JPS5284776A/en
Publication of JPS5284776A publication Critical patent/JPS5284776A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

PURPOSE:A liquid crystal display device is operated over a wider temperature range and prolonging of its service life is made possible by providing a temperature sensing element within a drive circuit and changing the waveform of the voltage applied to the liquid crystal display device of an a.c. drive system according to temperature changes.
JP8253076A 1976-07-13 1976-07-13 Electronic watch Pending JPS5284776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8253076A JPS5284776A (en) 1976-07-13 1976-07-13 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8253076A JPS5284776A (en) 1976-07-13 1976-07-13 Electronic watch

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP47001772A Division JPS5217397B2 (en) 1971-12-24 1971-12-24

Publications (1)

Publication Number Publication Date
JPS5284776A true JPS5284776A (en) 1977-07-14

Family

ID=13777055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8253076A Pending JPS5284776A (en) 1976-07-13 1976-07-13 Electronic watch

Country Status (1)

Country Link
JP (1) JPS5284776A (en)

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