Patent ID: 7586663
Filing Date: 2009-09-08
Classification: G02F

Abstract:
1. A method for making an electrochromic device comprising: coating a first substrate with a first transparent electrically conductive electrode; coating a second substrate with a second transparent electrically conductive electrode; coating the first coated substrate with a first electrochromic layer; coating the second coated substrate with a second electrochromic layer wherein the first electrochromic layer and the second electrochromic layer are different; covering the first coated substrate with the first electrochromic layer with a transparent, UV curable solid state cross linking gel polymer electrolyte mixture comprising one or more macromonomers, a plasticizer, a photoinitiator and an electrolyte salt; contacting the first coated substrate with the first electrochromic layer with the second coated substrate with the second electrochromic layer wherein the second electrochromic layer is in contact with the gel polymer and the first electrolyte layer is in contact with the gel polymer, and wherein there is substantially no contact between the first and second electrochromic layer; polymerizing the UV curable solid state cross linking gel polymer electrolyte after contacting the first coated substrate with the first electrochromic layer with the second coated substrate with the second electrochromic layer; and sealing the layers between the first and second substrates wherein the device is substantially air and water tight.