Multi-cell electrochromic devices
First Claim
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1. A multi-cell electrochromic device, comprising:
- a first substrate which comprises a first side and a second side, wherein the first and second sides include electrically conductive material associated therewith;
a second substrate having an electrically conductive material associated therewith;
a first electrochromic medium contained within a first chamber positioned between the first and second substrates, wherein the first electrochromic medium comprises;
at least one solvent;
at least one anodic electroactive material;
at least one cathodic electroactive material; and
wherein at least one of the anodic and cathodic electroactive materials is electrochromic;
a third substrate having an electrically conductive material associated therewith;
a second electrochromic medium contained within a second chamber positioned between the first and third substrates, wherein the second electrochromic medium comprises;
at least one solvent;
at least one anodic electroactive material;
at least one cathodic electroactive material; and
wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and
wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.
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Abstract
A multi-cell electrochromic device comprising: first and second electrochromic device sub-assemblies which each comprise; a first substantially transparent substrate having an electrically conductive material associated therewith and second substrate having an electrically conductive material associated therewith; and an electrochromic medium contained within a chamber positioned between the first and second substrates, wherein the electrochromic medium comprises: at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the first and second electrochromic device sub-assemblies are in optical alignment, and further wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.
42 Citations
20 Claims
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1. A multi-cell electrochromic device, comprising:
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a first substrate which comprises a first side and a second side, wherein the first and second sides include electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a first electrochromic medium contained within a first chamber positioned between the first and second substrates, wherein the first electrochromic medium comprises; at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; a third substrate having an electrically conductive material associated therewith; a second electrochromic medium contained within a second chamber positioned between the first and third substrates, wherein the second electrochromic medium comprises; at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A multi-cell electrochromic device comprising:
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a first substantially transparent substrate which comprises a first side and a second side, wherein the first and second sides include electrically conductive material associated therewith; a second substrate having an electrically conductive material associated therewith; a first electrochromic medium contained within a first chamber positioned between the first and second substrates, wherein the first electrochromic medium comprises; at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; a third substrate having an electrically conductive material associated therewith; a second electrochromic medium contained within a second chamber positioned between the first and third substrates, wherein the second electrochromic medium comprises; at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.0% in a low transmission state, and further wherein the multi-cell electrochromic device transitions upon clearing from a lowest transmission state to approximately 1% transmission in a shorter period of time than a single-cell electrochromic device having essentially the same optical properties. - View Dependent Claims (17, 18, 19)
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20. An aircraft transparency, comprising:
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a first substrate, a second substrate, and a third substrate, wherein each one of the first substrate, the second substrate, and the third substrate comprises at least one electrically conductive material associated therewith; a first electrochromic medium contained within a first chamber positioned between the first and second substrates, and a second electrochromic medium contained within a second chamber positioned between the first and third substrates, wherein the first and second electrochromic mediums comprise; at least one solvent; at least one anodic electroactive material; at least one cathodic electroactive material; and wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein the multi-cell electrochromic device exhibits a transmittance of less than approximately 1.5% in a low transmission state.
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Specification
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Current AssigneeGentex Corporation
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Original AssigneeGentex Corporation
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InventorsGuarr, Thomas F., Bauer, Frederick T., Theiste, David A.
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Primary Examiner(s)Choi; William C
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Application NumberUS11/825,948Publication NumberTime in Patent Office490 DaysField of Search359265-275US Class Current359/265CPC Class CodesG02F 1/153 Constructional detailsG02F 1/163 Operation of electrochromic...
