Electrochromic display device

Details Electrochromic display device Electrochromic display device

1977-04-19

1979-07-03

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

350357, 340785, 340812, G09F 932

Patent

active

041602412

ABSTRACT:
An electrochromic display device comprising a plurality of segment electrodes which are selectively driven by a driving circuit via a plurality of lead members so as to display patterns of uniform density. Each of the segment electrodes is designed such that their areas are substantially uniform. In addition, for those segment electrodes which differ in size, the output impedence of the driving circuit is adjusted. Moreover, the electrical resistance of each lead member is substantially equalized and the drive is controlled in proportion to the number of segment electrodes driven simultaneously.

REFERENCES:
patent: 3096271 (1963-07-01), Hespenheide
patent: 3339996 (1967-09-01), Zaromb
patent: 3443859 (1969-05-01), Rogers
patent: 4057739 (1977-11-01), Otake

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