	US 7,542,193 B2
	Electro-optic mirror cell
Ian A. McCabe, Holland, Mich. (US); Hamid Habibi, Holland, Mich. (US); Niall R. Lynam, Holland, Mich. (US); and Donald L. Bareman, Zeeland, Mich. (US)
Assigned to Donnelly Corporation, Holland, Mich. (US)
Filed on May 21, 2008, as Appl. No. 12/124,365.
Application 12/124365 is a division of application No. 11/837865, filed on Aug. 13, 2007, granted, now 7,391,563.
Application 11/837865 is a continuation of application No. 11/021065, filed on Dec. 23, 2004, granted, now 7,255,451.
Application 11/021065 is a continuation in part of application No. PCT/US03/35381, filed on Nov. 05, 2003.
Application 11/021065 is a continuation in part of application No. PCT/US03/29776, filed on Sep. 19, 2003.
Claims priority of provisional application 60/531838, filed on Dec. 23, 2003.
Claims priority of provisional application 60/553842, filed on Mar. 17, 2004.
Claims priority of provisional application 60/563342, filed on Apr. 19, 2004.
Claims priority of provisional application 60/629926, filed on Nov. 22, 2004.
Claims priority of provisional application 60/490111, filed on Jul. 25, 2003.
Claims priority of provisional application 60/423903, filed on Nov. 05, 2002.
Claims priority of provisional application 60/412275, filed on Sep. 20, 2002.
Claims priority of provisional application 60/424116, filed on Nov. 05, 2002.
Claims priority of provisional application 60/489816, filed on Jul. 24, 2003.
Prior Publication US 2008/0225396 A1, Sep. 18, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/00 (2006.01)

U.S. Cl. 359—247 [359/603]

7 Claims

1. A mirror reflective element assembly for a variable reflectance vehicular mirror, said mirror reflective element assembly comprising:

a front substrate having a first surface and a second surface, said front substrate comprising a first perimeter edge around its perimeter and between said first surface and said second surface;

said second surface having a transparent electrically conductive coating disposed thereon;

a rear substrate having a third surface and a fourth surface, said rear substrate comprising a second perimeter edge around its perimeter and between said third surface and said fourth surface;

said third surface having an electrically conductive coating disposed thereon, at least a portion of said third surface conductive coating continuing from said third surface over at least a portion of said second perimeter edge to define a wraparound portion of said third surface conductive coating at said second perimeter edge, said third surface conductive coating establishing electrical continuity between said third surface and said portion of said second perimeter edge;

said rear substrate having a dimension that is less than a corresponding dimension of said front substrate such that at least an edge portion of said rear substrate is recessed from the perimeter edge of a corresponding portion of said front substrate so as to define an overhang region of said front substrate relative to said rear substrate, said wraparound portion of said third surface conductive coating being disposed at said recessed edge portion of said rear substrate and at least partially under said overhang region of said front substrate;

an electrically insulating layer applied over said transparent conductive coating on said second surface of said front substrate and at least partially along said overhang region of said front substrate that generally corresponds with said recessed edge portion of said rear substrate;

an electro-optic medium disposed between said second surface conductive coating and said third surface conductive coating;

a first electrical connection making electrical contact with said wraparound portion of said third surface conductive coating at said recessed edge portion, said first electrical connection being operable to power said third surface conductive coating; and

wherein said insulating layer electrically insulates said second surface transparent conductive coating of said front substrate from electrical contact with said first electrical connection.