G - Physics – 02 – F
Patent
G - Physics
02
F
345/6
G02F 1/17 (2006.01) B29C 67/00 (2006.01) G02F 1/01 (2006.01) G02F 1/15 (2006.01)
Patent
CA 1304484
Abstract of the Disclosure This invention teaches an electrochromic device in which an electrochromic layer is positioned between two electrodes. The electrochromic layer comprises an organic based bulk material which has been polymerized and condensed supporting electrochromic particles and ion producing particles in fixed but generally distributed positions therewithin. The bulk material permits migration of ions produced by the ion producing particles to and from the electrochromic particles upon change in voltage between the first and second electrodes. The bulk material also prohibits the passage of electrons therethrough when a voltage is applied between the first electrode and the second electrode, whereby an electric field is built up between the first and second electrodes which causes migration of the ions. Also my invention is a method of making a material which can form an electrochromic layer. The method has the following steps. A gel producing organic material is dissolved in a solvent to produce a solution. The gel producing material is one which permits migration of ions therethrough but prohibits passage of electrons therethrough. A finely divided ion producing material is added to the solution. A finely divided electrochromic material is also added to the solution. The solution is thoroughly mixed. The solution is then polymerized and condensed to obtain a gelled material. The gelled material supports the finely divided ion producing material and the finely divided electrochromic material in fixed but generally distributed position therewithin. 2225L
581663
Ford Motor Company Of Canada Limited
Sim & Mcburney
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