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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0452117 (2012-04-20) |
등록번호 | US-8559093 (2013-10-15) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 1447 |
An electrochromic mirror reflective element suitable for use in a rearview mirror assembly of a vehicle includes first and second substrates having an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter coating is disposed at a second surface of the first substra
An electrochromic mirror reflective element suitable for use in a rearview mirror assembly of a vehicle includes first and second substrates having an electrochromic medium disposed therebetween and bounded by a perimeter seal. A perimeter coating is disposed at a second surface of the first substrate proximate at least a perimeter portion of the first substrate. The perimeter coating generally conceals the perimeter seal from view by a person viewing a first surface of the first substrate and through the first substrate. An at least partially reflective stack of thin films is disposed at least a portion of a third surface of the second substrate. The perimeter seal is at least partially visible to a person viewing a fourth surface of the second substrate and through the second substrate.
1. An electrochromic mirror reflective element suitable for use in a rearview mirror assembly of a vehicle, said electrochromic mirror reflective element comprising: a first substrate and a second substrate having an electrochromic medium disposed therebetween, wherein said electrochromic medium is
1. An electrochromic mirror reflective element suitable for use in a rearview mirror assembly of a vehicle, said electrochromic mirror reflective element comprising: a first substrate and a second substrate having an electrochromic medium disposed therebetween, wherein said electrochromic medium is bounded by a perimeter seal, and wherein said perimeter seal is disposed between said first and second substrates;wherein said first substrate comprises a first substantially transparent substrate having a first surface and a second surface opposite said first surface;wherein said second substrate comprises a second substantially transparent substrate having a third surface and a fourth surface opposite said third surface;wherein a transparent electrically conductive thin film is disposed at least a portion of said second surface of said first substrate;wherein a perimeter coating is disposed at said second surface of said first substrate proximate at least a perimeter portion of said first substrate, and wherein said perimeter coating comprises at least one of (i) a reflective perimeter coating, (ii) an electrically conductive perimeter coating and (iii) a substantially opaque perimeter coating;wherein said perimeter coating generally conceals said perimeter seal from view by a person viewing said first surface of said first substrate and through said first substrate;wherein an at least partially reflective stack of thin films is disposed at least a portion of said third surface of said second substrate, and wherein said at least partially reflective stack of thin films comprises at least one metal thin film; andwherein said perimeter seal is at least partially visible to a person viewing said fourth surface of said second substrate and through said second substrate. 2. The electrochromic mirror reflective element of claim 1, wherein said at least partially reflective stack of thin films comprises at least one metal oxide thin film. 3. The electrochromic mirror reflective element of claim 1, wherein said at least partially reflective stack of thin films comprises at least one tungsten oxide thin film. 4. The electrochromic mirror reflective element of claim 1, wherein said at least one metal thin film comprises silver. 5. The electrochromic mirror reflective element of claim 1, wherein said transparent electrically conductive thin film at said second surface of said first substrate comprises a material selected from the group consisting of indium tin oxide, tin oxide, antimony-doped tin oxide, fluorine-doped tin oxide, antimony-doped zinc oxide and aluminum-doped zinc oxide. 6. The electrochromic mirror reflective element of claim 1, wherein said perimeter coating comprises a stack of thin films. 7. The electrochromic mirror reflective element of claim 1, wherein said at least one metal thin film is one of (a) undercoated with a metal oxide thin film, (b) overcoated with a metal oxide thin film, (c) undercoated with a metal oxide thin film and overcoated with a metal oxide thin film, (d) undercoated with a transparent electrically conductive thin film, (e) overcoated with a transparent electrically conductive thin film, (f) undercoated with a transparent electrically conductive thin film and overcoated with a transparent electrically conductive thin film, (g) undercoated with an indium tin oxide thin film, (h) overcoated with an indium tin oxide thin film, (i) undercoated with an indium tin oxide thin film and overcoated with an indium tin oxide thin film. 8. The electrochromic mirror reflective element of claim 1, wherein said perimeter seal comprises a compound seal including a conductive seal layer. 9. The electrochromic mirror reflective element of claim 1, wherein said electrochromic medium comprises at least one of (i) a viologen, (ii) a phenazine, (iii) 5,10-dihydro-5,10-dimethylphenazine, (iv) a heptyl viologen, (v) propylene carbonate, (vi) an ultraviolet stabilizer, (vii) a phenothiazine, (viii) a metallocene, (ix) a cross-linked polymer, (x) a plasticizer, (xi) a polychromic solid film formed from curing an electrochromic monomer composition, (xii) a cathodic electrochromic compound, (xiii) an anodic electrochromic compound, (xiv) a cathodic electrochromic compound and an anodic electrochromic compound, (xv) an electrochromic cross-linked polymer solid film, (xvi) an electrochromic solid film, (xvii) a ferrocene and (xviii) tungsten oxide. 10. The electrochromic mirror reflective element of claim 1, wherein said first substrate and said second substrate are generally sized and shaped to like dimensions, and wherein said second substrate is disposed to the rear of said second surface of said first substrate in a generally flush design. 11. The electrochromic mirror reflective element of claim 1, wherein said at least partially reflective stack of thin films has a visible light reflectance of at least about 70 percent reflectance. 12. The electrochromic mirror reflective element of claim 1, wherein said at least partially reflective stack of thin films has a visible light transmission within a range of about 8 percent transmission to about 30 percent transmission. 13. The electrochromic mirror reflective element of claim 1, wherein said electrochromic mirror reflective element is configured for use in an exterior rearview mirror assembly. 14. The electrochromic mirror reflective element of claim 1, wherein said at least partially reflective stack of thin films comprises at least one semi-conductive metal oxide thin film. 15. The electrochromic mirror reflective element of claim 14, wherein said at least one semi-conductive metal oxide thin film comprises indium tin oxide. 16. The electrochromic mirror reflective element of claim 1, wherein said at least one metal thin film comprises a material selected from the group consisting of aluminum, palladium, platinum, titanium, gold, chromium, silver and an alloy. 17. The electrochromic mirror reflective element of claim 16, wherein said alloy comprises steel. 18. The electrochromic mirror reflective element of claim 1, wherein said perimeter coating comprises a reflective metal thin film and wherein said perimeter coating circumscribes the outer perimeter of said second surface of said second substrate. 19. The electrochromic mirror reflective element of claim 18, wherein said perimeter coating comprises chromium. 20. The electrochromic mirror reflective element of claim 1, wherein said electrochromic mirror reflective element is configured for use in an interior rearview mirror assembly. 21. The electrochromic mirror reflective element of claim 20, wherein said interior rearview mirror assembly comprises at least one device selected from the group comprising: an exterior light control, a moisture sensor, an information display, a light sensor, a blind spot indicator, an approach warning, an operator interface, a compass, a temperature indicator, a voice actuated device, a microphone, a dimming circuitry, a GPS device, a navigation aid, a lane departure warning system, a vision system and a rear vision system. 22. The electrochromic mirror reflective element of claim 1, wherein said first substrate comprises a substantially transparent glass substrate. 23. The electrochromic mirror reflective element of claim 22, comprising a coating at said first surface of said first substrate that alters the contact angle of water relative to its contact angle to glass. 24. The electrochromic mirror reflective element of claim 23, wherein said coating is hydrophobic. 25. An interior electrochromic mirror reflective element suitable for use in an interior rearview mirror assembly of a vehicle, said interior electrochromic mirror reflective element comprising: a first substrate and a second substrate having an electrochromic medium disposed therebetween, wherein said electrochromic medium is bounded by a perimeter seal, and wherein said perimeter seal is disposed between said first and second substrates;wherein said first substrate and said second substrate are generally sized and shaped to like dimensions, and wherein said second substrate is disposed to the rear of said second surface of said first substrate in a generally flush design;wherein said first substrate comprises a first substantially transparent glass substrate having a first surface and a second surface opposite said first surface;wherein said second substrate comprises a second substantially transparent glass substrate having a third surface and a fourth surface opposite said third surface;wherein a transparent electrically conductive thin film is disposed at least a portion of said second surface of said first substrate;wherein a perimeter coating is disposed at said second surface of said first substrate proximate at least a perimeter portion of said first substrate, and wherein said perimeter coating circumscribes the outer perimeter of said second surface of said second substrate;wherein said perimeter coating comprises a reflective metal thin film;wherein said perimeter coating generally conceals said perimeter seal from view by a person viewing said first surface of said first substrate and through said first substrate;wherein an at least partially reflective stack of thin films is disposed at least a portion of said third surface of said second substrate, and wherein said at least partially reflective stack of thin films comprises at least one metal thin film; andwherein said perimeter seal is at least partially visible to a person viewing said fourth surface of said second substrate and through said second substrate. 26. The interior electrochromic mirror reflective element of claim 25, wherein said at least one metal thin film is one of (a) undercoated with a metal oxide thin film, (b) overcoated with a metal oxide thin film, (c) undercoated with a metal oxide thin film and overcoated with a metal oxide thin film, (d) undercoated with a transparent electrically conductive thin film, (e) overcoated with a transparent electrically conductive thin film, (f) undercoated with a transparent electrically conductive thin film and overcoated with a transparent electrically conductive thin film, (g) undercoated with an indium tin oxide thin film, (h) overcoated with an indium tin oxide thin film, (i) undercoated with an indium tin oxide thin film and overcoated with an indium tin oxide thin film. 27. The interior electrochromic mirror reflective element of claim 25, wherein said perimeter coating is electrically conductive. 28. The interior electrochromic mirror reflective element of claim 25, wherein said perimeter coating comprises a stack of thin films. 29. The interior electrochromic mirror reflective element of claim 25, wherein said perimeter coating comprises chromium. 30. An exterior electrochromic mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle, said exterior electrochromic mirror reflective element comprising: a first substrate and a second substrate having an electrochromic medium disposed therebetween, wherein said electrochromic medium is bounded by a perimeter seal, and wherein said perimeter seal is disposed between said first and second substrates;wherein said first substrate and said second substrate are generally sized and shaped to like dimensions, and wherein said second substrate is disposed to the rear of said second surface of said first substrate in a generally flush design;wherein said first substrate comprises a first substantially transparent glass substrate having a first surface and a second surface opposite said first surface;wherein said second substrate comprises a second substantially transparent glass substrate having a third surface and a fourth surface opposite said third surface;wherein a transparent electrically conductive thin film is disposed at least a portion of said second surface of said first substrate;wherein a perimeter coating is disposed at said second surface of said first substrate proximate at least a perimeter portion of said first substrate, and wherein said perimeter coating circumscribes the outer perimeter of said second surface of said second substrate;wherein said perimeter coating comprises a reflective metal thin film, and wherein said perimeter coating is electrically conductive;wherein said perimeter coating generally conceals said perimeter seal from view by a person viewing said first surface of said first substrate and through said first substrate;wherein an at least partially reflective stack of thin films is disposed at least a portion of said third surface of said second substrate, and wherein said at least partially reflective stack of thin films comprises at least one metal thin film; andwherein said perimeter seal is at least partially visible to a person viewing said fourth surface of said second substrate and through said second substrate. 31. The exterior electrochromic mirror reflective element of claim 30, wherein said at least one metal thin film is one of (a) undercoated with a metal oxide thin film, (b) overcoated with a metal oxide thin film, (c) undercoated with a metal oxide thin film and overcoated with a metal oxide thin film, (d) undercoated with a transparent electrically conductive thin film, (e) overcoated with a transparent electrically conductive thin film, (f) undercoated with a transparent electrically conductive thin film and overcoated with a transparent electrically conductive thin film, (g) undercoated with an indium tin oxide thin film, (h) overcoated with an indium tin oxide thin film, (i) undercoated with an indium tin oxide thin film and overcoated with an indium tin oxide thin film. 32. The exterior electrochromic mirror reflective element of claim 30, wherein said perimeter coating comprises a stack of thin films. 33. The exterior electrochromic mirror reflective element of claim 30, wherein said perimeter coating comprises chromium.
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