Electrochromic display device

Optical: systems and elements – Optical modulator – Light wave temporal modulation

Reexamination Certificate

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Details

C359S265000, C359S269000, C359S271000

Reexamination Certificate

active

07995262

ABSTRACT:
Disclosed is an electrochromic display device comprising: a first substrate; a first electrode; a second substrate; a second electrode; and an electrochromic composition layer, wherein the device is of a passive matrix drive where the device performs a display by an energization between the electrodes, and performs a erasion of the display, wherein the first electrode comprises electrodes, the second electrode comprises a plurality of transparent display electrodes, a pixel is formed where the electrodes are in a grade separated crossing, at least a surface of the electrodes is respectively oxidized, the electrochromic composition layer comprising (i) insulative partition walls and (ii) an electrochromic composition including a supporting electrolyte, a polar solvent, and a leuco dye, and wherein the device displays a selected pixel by applying a voltage of a first potential difference, and applies the voltage of a second potential difference so as not to cause any energization.

REFERENCES:
patent: 3451741 (1969-06-01), Manos
patent: 4957352 (1990-09-01), Yasuda et al.
patent: 2008/0297878 (2008-12-01), Brown et al.
patent: 1 887 416 (2008-02-01), None
patent: 2007-178733 (2007-07-01), None
patent: 2007-314721 (2007-12-01), None
patent: 2008-32911 (2008-02-01), None
Extended European Search Report dated May 20, 2010 (nine (9) pages).

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