Electrochromic display device

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G02F 117

Patent

active

042524180

ABSTRACT:
An electrochromic display device, preferably employing an organic electrochromic material such as heptyl viologen, has display electrodes with a rough surface in contact with the electrochromic material. The device is operated at a sufficiently high current density so that the diffusion depth of the material conforms to the contours of the electrodes.

REFERENCES:
patent: 3854794 (1974-12-01), Van Dam et al.
patent: 3950077 (1976-04-01), Jasinski
Schoot et al., "New Electrochromic Memory Display" Appl. Phys. Lett., vol. 23, No. 2, Jul. 15, 1973, pp. 64-65.

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