Current controlled drive system for electrochromic displays of t

Details Current controlled drive system for electrochromic displays of t Current controlled drive system for electrochromic displays of t

1977-05-24

1980-05-06

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340785, 340812, 350357, G06F 314

Patent

active

042019842

ABSTRACT:
A driving circuit is provided for an electro-optical display which includes an electrochromic material and a predetermined number of display segments, various combinations of the display segments defining different desired display patterns. The electrochromic phenomenon is developed within the electro-optical display upon a flow of current supplied through the display segments. The driving circuit is so constructed as to supply a predetermined amount of the flow of current to the display segments, of which the current value is changed in accordance with the number of the display segments which change their display states.

REFERENCES:
patent: 3096271 (1963-07-01), Hespenheide
patent: 3950077 (1976-04-01), Jasinski
patent: 4034550 (1977-07-01), Kouchi
patent: 4068148 (1978-01-01), Nomiya et al.
Features of an Electrochromic Display Device, R. D. Giglia, American Cyanamid Co.

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