Display means for chronometers with electro-optical elements

Details Display means for chronometers with electro-optical elements Display means for chronometers with electro-optical elements

1979-02-08

1981-03-10

Weldon, Ulysses

Horology: time measuring systems or devices

Displays or display device details

Optical

368241, 368242, 368 82, 368 83, 368 84, G04C 1702

Patent

active

042558069

ABSTRACT:
A display for an electronic timepiece or the like has an analog electro-optical display comprising a plurality of segment electrodes radially disposed about a center point and at least one first counterelectrode each bridging at least two radial segment electrodes and a digital electro-optical display comprising a plurality of digital electrodes which define at least one alphanumeric character and at least one second counterelectrode. By using at least two first counterelectrodes each having a different set of radial segment electrodes associated therewith and electrically connecting at least one radial segment electrode of one set in parallel with one radial segment electrode of the other set and in parallel with one digit electrode, the display may be driven in a time multiplex manner with a minimum number of external display connections.

REFERENCES:
patent: 3772874 (1973-11-01), Lefkowitz
patent: 3959963 (1976-06-01), Murrell
patent: 3969887 (1976-07-01), Fukumoto
patent: 3987617 (1976-10-01), Slob
patent: 3992875 (1976-11-01), Kashio
patent: 4079369 (1978-03-01), Fukumoto
patent: 4081953 (1978-04-01), Crutcher
patent: 4095405 (1978-06-01), Tanaka
patent: 4095414 (1978-06-01), Reich

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