Patent ID: 6302986
Filing Date: 2001-10-16
Classification: G02F

Abstract:
A method for producing an electrochromic device which comprises the steps of (a) assembling a hollow cell constituting an electrochromic device by opposing two electrically conductive substrates, at least one of which is transparent and either of which is provided with an injection port for an electrolyte or a precursor thereof, in a spaced-apart relationship with each other and sealing together the entire peripheral edges of the opposed substrates; (b) filling the inside of the hollow cell with an electrolyte or the precursor thereof by injecting through the injection port; (c) sealing temporarily the injection port with a material selected from the group consisting of a natural rubber and a synthetic rubber which is deformably inserted into the port; and (d) sealing secondarily the temporarily sealed port by applying thereon only an adhesive or a sheet member over the adhesive.