Patent ID: 6600589
Filing Date: 2003-07-29
Classification: C07D,G02F,Y10T

Abstract:
A light-stabilized electrochromic device comprising:(a) a pair of glass or plastic plates or plastic films wherein at least one such plate or film is provided on one side each with an electrically conductive coating, wherein (1) at least one such plate or film and its conductive coating is transparent, (2) one such plate or film and its conductive coating is optionally mirrored, and (3) the electrically conductive layer of one or both of the two plates or films is optionally divided into separate, individually contacted area segments; (b) a sealing ring joining the plates or films via the sides of their conductive coating wherein the volume formed by the two plates or films and the sealing ring is filled with an electrochromic medium; and (c) a yellow filter for which the wavelength at which the absorbance in the long-wavelength flank reaches half of the longest wavelength maximum absorbance is in the range of from 370 to 500 nm.