Circuit for controlling a display device

Details Circuit for controlling a display device Circuit for controlling a display device

1975-10-23

1977-01-25

Curtis, Marshall M.

Communications: electrical

Systems

With specific power supply

340166EL, 340324M, G09F 932

Patent

active

040054047

ABSTRACT:
A multi-character display comprising a plurality of segmented display devices and a control circuit for actuating the individual display devices in time sequence and for tuning on individual segments of an enabled display device in time sequence. The segments and devices are turned off in the same sequence. By suitable selection of the frequency of operation, a viewer perceives a complete display. Reduction of the switching current to that needed for activation of a single element reduces the turn on noise and makes the display particularly suitable for use in TV and radio receivers.

REFERENCES:
patent: 3863247 (1975-01-01), Hosokawa
patent: 3914758 (1975-10-01), Ingle
patent: 3918041 (1975-11-01), Mao
patent: 3925690 (1975-12-01), Spence
patent: 3950743 (1976-04-01), Hatano et al.

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