Conductive busbars and sealants for chromogenic devices
First Claim
1. An electrooptic variable reflectance mirror for vehicles comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises at least one layer of conductive coating, where the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber comprising an electrooptic medium, and wherein at least one of the rear surface of the said front element and the front surface of the said rear element has a conductive busbar deposited on its perimeter or a portion of its perimeter wherein the said busbar is formed of a composite comprising conductive nanoparticles in an organic matrix, or the said busbar is formed by deposition of nanoparticles from a suspension of the said nanoparticles in a fluid.
1 Assignment
0 Petitions
Accused Products
Abstract
This invention discloses conductive busbars and sealants for electrooptic devices including electrochromic mirrors and windows. The conductive busbars are formed from materials comprising nanoparticles, and the sealants comprise of additives that promote a two phase morphology and use of adhesion promotion additives with crosslinkers. Methods to deposit busbars and then to connect these busbars to electrical connectors are also disclosed.
83 Citations
23 Claims
- 1. An electrooptic variable reflectance mirror for vehicles comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises at least one layer of conductive coating, where the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber comprising an electrooptic medium, and wherein at least one of the rear surface of the said front element and the front surface of the said rear element has a conductive busbar deposited on its perimeter or a portion of its perimeter wherein the said busbar is formed of a composite comprising conductive nanoparticles in an organic matrix, or the said busbar is formed by deposition of nanoparticles from a suspension of the said nanoparticles in a fluid.
- 5. A chromogenic window or a mirror comprising a variable transmission medium between two conductive layers, where one of the said conductive layer is transparent, and further comprise of perimeter busbars deposited on or connected to the said conductive layers, wherein the said busbar is formed of a composite comprising conductive nanoparticles in an organic matrix, or the said busbar is formed by deposition of nanoparticles from a suspension of nanoparticles in a fluid.
- 9. A chromogenic window or a mirror comprising a variable transmission medium between two conductive layers, where one of the said conductive layer is transparent, and further comprise of conductive perimeter busbars deposited on or connected to the said conductive layers, wherein the said busbar is formed from a formulation comprising of conductive metal particles or metal compound particles, and the said formulation after deposition is processed using a method that comprises of a treatment using pulsed optical radiation.
- 11. A chromogenic window or a mirror comprising a variable transmission medium between two conductive layers, where one of the said conductive layer is transparent, and further comprise of conductive perimeter busbars deposited on or connected to the said conductive layers, and electrical connectors are bonded to the said busbars using a solid state welding process.
- 13. An electrooptic variable reflectance mirror for vehicles or an electrochromic window, comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprising at least one layer of conductive coating, where the front and the rear elements are sealably bonded at the perimeter by a spaced apart relationship defining a chamber there between, said chamber comprising an electrooptic medium, and wherein the said perimeter seal to bond the front and the rear substrate comprises an adhesion promotion material, wherein the said adhesion promotion material mixture comprises of at least one organo-silane and one crosslinker.
- 17. An electrooptic variable reflectance mirror for vehicles or an electrochromic window, comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises at least one conductive coating, wherein the front and the rear elements are sealably bonded at the perimeter by a spaced apart relationship defining a chamber there between, said chamber comprising an electrooptic medium, and wherein the said perimeter seal to bond the front and the rear substrate comprises a toughening agent.
-
20. An electrooptic variable reflectance mirror for vehicles or an electrochromic window, comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises at least one layer of conductive coating, wherein the front and the rear elements are sealably bonded at the perimeter by a spaced apart relationship defining a chamber there between, said chamber containing an electrooptic medium, and the said perimeter sealant having more than one opening, wherein at least one opening is used for filling the electrooptic medium and one opening for venting the gas in the cavity as it is being filled by the said electrooptic medium;
- and the geometry of the opening for the electrolyte filling comprise of a dam type structure, which has a different geometry as compared to the vent.
- View Dependent Claims (21)
- 22. An electrooptic variable reflectance mirror for vehicles, comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprising at least one layer of conductive coating, where the front and the rear elements are sealably bonded at the perimeter by a spaced apart relationship defining a chamber there between, said chamber comprising an electrooptic medium, wherein the said transparent conductive coating or the conductive coating comprises of a zinc oxide coating doped with at least two additional metal oxides.
Specification