Patent
1988-06-07
1989-11-07
LaRoche, Eugene R.
G02F 117, G02F 123
Patent
active
048787434
ABSTRACT:
In an automotive mirror using an electrochromic element, the electrochromic element comprises a first electrode made of a transparent conductive layer laminated on a substantially rectangular glass substrate, two EC (electrochromic) layers disposed opposing each other with a solid electrolyte layer placed between them, a second electrode made of a reflective metal film and an insulative/protective layer disposed outside the second electrode. There are formed on the first electrode longitudinally and laterally in positions off the adjoining EC layer, strip-shaped metal films considerably superior in conductivity to the first electrode. The power supply to the first electrode is made through a pair of terminal fixtures electrically connected to the strip-shaped metal films in locations near a set of diagonally opposing corners of the glass substrate, and the power supply to the second electrode is made to another pair of terminal fixtures electrically connected to a pair of electrode portions extended to the insulative areas, respectively, near the other set of diagonally opposing corners of the glass substrate. Therefore, at start of the power supply, the voltage drop depending upon the position on the first electrode is markedly reduced, and the colored areas of the two EC laters can quickly shift to the center of the mirror surface from the regions near the strip-shaped metal films, whereby the entire mirror surface can get colored to a predetermined extent in a considerably reduced time.
REFERENCES:
patent: 4768865 (1988-09-01), Greenberg et al.
patent: 4801195 (1989-01-01), Kawa et al.
patent: 4805996 (1989-02-01), Carlson
Aikawa Toyoshi
Sekine Eiichi
Ichikoh Industries Limited
LaRoche Eugene R.
McCutcheon Nathan
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