Method of driving electrochromic display means and electrochromi

Details Method of driving electrochromic display means and electrochromi Method of driving electrochromic display means and electrochromi

1977-09-02

1980-08-12

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340785, 340811, 350357, G06F 314, G09F 932

Patent

active

042175798

ABSTRACT:
A method of driving an electrochromic display means and the electrochromic display means therefor which includes an electrochromic display cell having a counter electrode and a plurality of display electrodes, and a constant voltage source coupled through switching means to the electrochromic display cell in such a manner that the display electrodes to be colored are maintained at the same potential as that of the counter electrode, while the display electrodes to be erased are impressed with a predetermined positive voltage with respect too the counter electrode.

REFERENCES:
patent: 3938131 (1976-02-01), Van Doorn et al.
patent: 4009936 (1977-03-01), Kasai
patent: 4057739 (1977-11-01), Otake

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