Segmented bargraph display by an electrochromic display device

Details Segmented bargraph display by an electrochromic display device Segmented bargraph display by an electrochromic display device

1978-07-28

1981-01-27

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340763, 340785, G06F 314

Patent

active

042478553

ABSTRACT:
A plurality of segment electrodes are aligned in an electrochromic display device for displaying an analog value in a bargraph fashion. When the analog value to be displayed increases, a coloration drive signal is applied only to the segment electrode which should be changed from the bleached state to the coloration state. Contrarily, when the analog value to be displayed decreases, a bleaching drive signal is applied only to the segment electrode which should be changed from the coloration state to the bleached state. Remaining segment electrodes do not receive any drive signals in transition of the displayed value.

REFERENCES:
patent: 3772874 (1973-11-01), Lefkowitz
patent: 3908355 (1975-09-01), Wiesner
patent: 4057739 (1977-11-01), Otake
patent: 4060975 (1977-12-01), Yamaguchi

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