JPS53121666A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS53121666A
JPS53121666A JP4144178A JP4144178A JPS53121666A JP S53121666 A JPS53121666 A JP S53121666A JP 4144178 A JP4144178 A JP 4144178A JP 4144178 A JP4144178 A JP 4144178A JP S53121666 A JPS53121666 A JP S53121666A
Authority
JP
Japan
Prior art keywords
electronic watch
display device
thermo
waveform
liquid
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
JP4144178A
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 JP4144178A priority Critical patent/JPS53121666A/en
Publication of JPS53121666A publication Critical patent/JPS53121666A/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
    • G04G9/0047—Details electrical, e.g. selection or application of the operating voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To operate a liquid display device over a long lifetime and a wide temperature range by providing a thermo-sensitive device to part of a circuit which drives the liquid crystal display device and changing the waveform of applied voltage according to temperature change.
JP4144178A 1978-04-08 1978-04-08 Electronic watch Pending JPS53121666A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4144178A JPS53121666A (en) 1978-04-08 1978-04-08 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4144178A JPS53121666A (en) 1978-04-08 1978-04-08 Electronic watch

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP8253276A Division JPS5284998A (en) 1976-07-13 1976-07-13 Driving circuit for liquid crystal display

Publications (1)

Publication Number Publication Date
JPS53121666A true JPS53121666A (en) 1978-10-24

Family

ID=12608449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4144178A Pending JPS53121666A (en) 1978-04-08 1978-04-08 Electronic watch

Country Status (1)

Country Link
JP (1) JPS53121666A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04109792U (en) * 1991-03-07 1992-09-22 カシオ計算機株式会社 Electronic equipment with liquid crystal display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04109792U (en) * 1991-03-07 1992-09-22 カシオ計算機株式会社 Electronic equipment with liquid crystal display
JP2575866Y2 (en) * 1991-03-07 1998-07-02 カシオ計算機株式会社 Electronic equipment with liquid crystal display

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