Title:
ELECTRONIC WATCH
Document Type and Number:
Japanese Patent JPS53121666
Kind Code:
A
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.
Inventors:
MOROKAWA SHIGERU
NISHIMURA KATSUO
MARUKA RIYUUICHI
NISHIMURA KATSUO
MARUKA RIYUUICHI
Application Number:
JP4144178A
Publication Date:
October 24, 1978
Filing Date:
April 08, 1978
Export Citation:
Assignee:
CITIZEN WATCH CO LTD
International Classes:
G04G3/02; G04G9/00; G04G99/00; (IPC1-7): G04C3/00