Electrochromic display device

Details Electrochromic display device Electrochromic display device

1980-09-10

1982-10-19

Davie, James W.

29570, G02F 117

Patent

active

043547419

ABSTRACT:
An electrochromic display device and apparatus for producing such a device including a display electrode, a confronting electrode, and an electrolyte-impregnated porous layer disposed between the electrodes. The porous member has an average pore diameter of 0.1 to 50 .mu.m with porous spaces occupying at least 30% by volume of the porous member. Pigment is held in the porous spaces to an extent of 1 to 50% by volume of the porous spaces. With this construction, the display device provides an excellent display background.

REFERENCES:
patent: 3971110 (1976-07-01), Thomas et al.
patent: 4066336 (1978-01-01), Zeller
patent: 4235528 (1980-11-01), Yano et al.

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