Patent ID: 8988755
Filing Date: 2015-03-24
Classification: B60R,G02F

Abstract:
1. A variable reflectance vehicular electro-optic rearview mirror reflective element assembly comprising: a front substrate having a first surface that generally faces a driver of a vehicle equipped with a mirror assembly that incorporates said rearview mirror reflective element assembly; said front substrate having a second surface opposite said first surface, wherein said second surface of said front substrate has a transparent electrically conductive coating disposed thereat; a rear substrate having a third surface and a fourth surface, wherein said third surface has a conductive coating disposed thereat; a perimeter seal disposed between said front and rear substrates, said perimeter seal spacing said front and rear substrates apart and forming an interpane cavity therebetween; wherein said third surface conductive coating comprises a plurality of layers, and wherein said plurality of layers comprises (i) a first layer of nickel chromium, (ii) a silver or silver alloy layer established at said first layer of nickel chromium, (iii) a second layer of nickel chromium established at said silver or silver alloy layer, and (iv) a reflective layer established at said second layer of nickel chromium; wherein said plurality of layers are disposed over a perimeter region of said fourth surface of said rear substrate; and wherein said plurality of layers has a sheet resistance of less than about 0.5 ohms per square.