A radial format LCD/Semiconductor system for analog watch applications

A totally electronic analog watch has been built, using a multiplexed liquid-crystal display and an I 2 L integrated circuit chip which includes a voltage regulator with temperature compensation for the display drive. With ½ duty cycle multiplexing, two timekeeping parameters, e.g., hours and minute...

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Bibliographische Detailangaben
Veröffentlicht in:	IEEE transactions on electron devices 1979-08, Vol.26 (8), p.1134-1137
Hauptverfasser:	Gruebel, R.L., Marks, B.W., Noble, R.T., Penz, P.A., Surtani, K.H.
Format:	Artikel
Sprache:	eng
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Beschreibung
Zusammenfassung:	A totally electronic analog watch has been built, using a multiplexed liquid-crystal display and an I 2 L integrated circuit chip which includes a voltage regulator with temperature compensation for the display drive. With ½ duty cycle multiplexing, two timekeeping parameters, e.g., hours and minutes, can be displayed simultaneously.
ISSN:	0018-9383 1557-9646
DOI:	10.1109/T-ED.1979.19563