resin modifier

The electrolyte may further comprise an opacifying and reflecting material or pigment such as titanium dioxide. The object of this material is optically to isolate the front from the rear electrode in a display electrochromic cell and to reflect ambient light which has passed through the front electrode material. Suitably, the electrolyte contains from 10 to 30 percent of the opacifying material by weight based upon the weight of the electrolyte, e.g. from 15 to 25 percent. The electrolyte preferably also comprises a resin modifier such as ethylacrylate, 2-ethylhexylacrylate copolymer. The purpose of the resin modifier will be described below in connection with the fabrication of the electrolyte.