Constant current supply drive for electrochromic displays of the

Details Constant current supply drive for electrochromic displays of the Constant current supply drive for electrochromic displays of the

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...

340763, 340811, 350357, G09F 932

Patent

active

042019850

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 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 constructed so as to supply a predetermined amount of the flow of current to the display segments during variations of the light absorption properties.

REFERENCES:
patent: 3096271 (1963-07-01), Hespenheide
patent: 3987433 (1976-10-01), Kennedy
patent: 4034550 (1977-07-01), Kouchi et al.
patent: 4068148 (1978-01-01), Nomiya et al.
Features of an Electrochromic Display Device, Giglia, Amer. Cyanamid Co.

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