Electrochromic window

Abstract

Abstract The invention relates to an electrochromic glazing consisting of two glass sheets (1, 4) coated with first and second transparent electroconductive layers (2, 5), separated by a layer of an electrochromic material (9), an electrolyte (8) and a counterelectrode (7), said transparent electroconductive layers (2, 5) each being provided with an electroconductive strip (3, 6) parallel to the length of the glazing, made of a material whose electric conductivity is high relative to that of transparent electroconductive layers (2, 5). The electroconductive strips (3, 6) are placed along the opposite edges of the glazing and are connected to a voltage generator which applies in coloring phase (or in fading phase), between two points A and B on the electroconductive strips (3, 6) a potential difference U1=(VA-VB) (t) so that between point A on the electroconductive strip on the first electroconductive layer and a point R on the second electroconductive layers, directly facing point A, there is a potential difference U2=(VA-VR) (t)=Uo , where Uo is constant and chosen from the stability range of the coloring (or fading) reaction.

Inventors

• 👤 James Barton
• 👤 François Lerbet

Bibliographic Details