Electrochromic display device
First Claim
1. A display device comprising a solid transparent charge conducting material, positioned below the transparent material an active layer comprising an electrochromic material and an electrolyte;
- and positioned below the active layer a working electrode and a counter-electrode arranged to be isolated from one another wherein the distance between the working electrode and the counter-electrode is greater than two times the thickness of the active layer between the electrode and the transparent conductive material.
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Accused Products
Abstract
The invention is a display device comprising a solid top transparent, charge conducting material, positioned below the transparent solid material is an active layer comprising an electrochromic material and an electrolyte, and positioned below the active layer is a working electrode and a counter-electrode arranged to be isolated from one another, wherein the distance between the working and the counter electrode is greater than two times the thickness of the active layer between the electrode and the conductive material.
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Citations
22 Claims
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1. A display device comprising a solid transparent charge conducting material, positioned below the transparent material an active layer comprising an electrochromic material and an electrolyte;
- and positioned below the active layer a working electrode and a counter-electrode arranged to be isolated from one another wherein the distance between the working electrode and the counter-electrode is greater than two times the thickness of the active layer between the electrode and the transparent conductive material.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising a transparent charge conducting material, positioned below the top transparent material, an active layer comprising (a) a non-aqueous compound that undergoes an electron transfer reaction with a subsequent change in its protic state resulting in a pH gradient in the device, (b) at least one indicator dye, and (c) a charge transport material;
- and positioned below the active layer a working electrode and a counter electrode arranged to be isolated from one another wherein the distance between the working electrode and the counter electrode is two times the thickness of the active layer between the electrode and the transparent conductive material.
- View Dependent Claims (12, 13)
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14. A display device comprising a top transparent layer charge conducting material, positioned below the top transparent material an active layer comprising
(a) a compound that undergoes an electron transfer reaction with subsequent change in its protic state (b) at least one indicator dye which changes color when a change in pH occurs, and (c) an ionically conductive material and optionally component (d), a matrix material, wherein components (a), (b), (c), and (d) are different from one another and component (a) preferentially undergoes the electron transfer reaction when a charge is applied to the composition and positioned below the active layer a working electrode and a counter-electrode arranged to be isolated from one another wherein the distance between the working electrode and the counter electrode is greater than two times the thickness of the active layer between the electrode and the transparent conductive material.
Specification