Transparent electrode for an electrochromic switchable cell
First Claim
1. An article comprising;
- a first electrode assembly having an electrode defined as a first electrode;
a second electrode assembly having an electrode defined as a second electrode with the first and second electrodes in facing relationship to one another;
a medium between the first and second electrodes, the medium in response to electric stimuli alters percent of visible light transmitted through the medium;
the first electrode assembly having a first major surface facing the medium with the first electrode between the first major surface and the medium, the first electrode comprising;
a first electrically conductive layer between the medium and the first major surface;
a second electrically conductive layer spaced from the first electrically conductive layer and between the first electrically conductive layer and the medium;
first and second electrical contact members spaced from one another and contacting the first electrically conductive layer, wherein the first and second electrical contact members and the first electrically conductive layer provide a first electrically conductive path, and a third electrical contact member contacting the second electrically conductive layer, and a fourth electrical contact member contacting the second electrode, wherein the third and fourth electrical contact members, the second electrically conductive layer, the medium and the second electrode provide a second electrically conductive path.
1 Assignment
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Accused Products
Abstract
An electrochromic switchable transparency, e.g. a window and/or a mirror includes an electrochromic switchable medium between a pair of electrode assemblies. At least one of the electrode assemblies is transparent to visible light and includes an electrode over a surface. In one nonlimiting embodiment of the invention, the electrode has two electrically conducting layers and a bridging layer between and interconnecting the two electrically conducting layers. In one nonlimiting embodiment, the bridging layer includes a high electrically resistance connecting layer to provide the electrode with a heating layer to heat the surface and/or a current conducting layer to pass current to the medium. In another nonlimiting embodiment, the bridging layer includes an electrically connecting layer to pass current to electrically enhance the first electrically conductive layer. In another nonlimiting embodiment, the electrically conducting layers are silver films to reduce infrared transmission through the first electrode assembly.
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Citations
45 Claims
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1. An article comprising;
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a first electrode assembly having an electrode defined as a first electrode;
a second electrode assembly having an electrode defined as a second electrode with the first and second electrodes in facing relationship to one another;
a medium between the first and second electrodes, the medium in response to electric stimuli alters percent of visible light transmitted through the medium;
the first electrode assembly having a first major surface facing the medium with the first electrode between the first major surface and the medium, the first electrode comprising;
a first electrically conductive layer between the medium and the first major surface;
a second electrically conductive layer spaced from the first electrically conductive layer and between the first electrically conductive layer and the medium;
first and second electrical contact members spaced from one another and contacting the first electrically conductive layer, wherein the first and second electrical contact members and the first electrically conductive layer provide a first electrically conductive path, and a third electrical contact member contacting the second electrically conductive layer, and a fourth electrical contact member contacting the second electrode, wherein the third and fourth electrical contact members, the second electrically conductive layer, the medium and the second electrode provide a second electrically conductive path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. In an article of the type having a first electrode assembly spaced from a second electrode assembly, and a medium between the first and second electrode assemblies, wherein the medium in response to an electric stimuli alters percent of visible light transmitted through the medium, the improvement comprising:
at least one of the electrode assemblies comprising;
a surface;
a first zinc stannate layer over the surface;
a first zinc oxide layer over the first zinc stannate layer, and a first metal layer on the first zinc oxide layer. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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44. A method of operating an electrochromic switchable cell of the type having a first transparent electrode assembly on a major surface, the first electrode assembly spaced from a second electrode assembly, and an electrochromic switchable medium between the first and second electrode assemblies, the method comprising the steps of:
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providing the first electrode assembly with a first electrically conducting layer spaced from the major surface and in electrical contact with the electrochromic switchable medium and a second electrically conductive layer between the first electrically conductive layer and the major surface and spaced from the first electrically conducting layer and the electrochromic switchable medium, and at selected times, moving current through the first and/or the second electrically conductive layers. - View Dependent Claims (45)
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Specification