ito or sno 2 sb for example and have a thickness of about 400 nm it will be noted that the addition of a screen printed network which raises the conductivity of the electrode can allow the conducting layers laid down to be of lower thickness while retaining the benefits of the invention namely a diminution in the coloration front effect and a smaller switching time if the thickness of the layer of sno 2 f or ito is reduced in this way there can be a significant reduction in the cost of the active glazing the current leads are formed by screen printing perpendicular to the screen printed conducting strips parallel and at equal distances of 2 mm 0075 fig2 represents an embodiment of electro chromic glazing according to the invention this is electrochromic glazing with a laminated structure and two panes of glass in a configuration adapted for example for use as glazing in a car sun roof two clear panes of glass 21 and 22 are shown with an electrochromic functional system 23 of u201c all solid u201d type formed by the stack of functional layers which follows and a sheet of polyurethane pu 24 the sheet of pu may be replaced by a sheet of ethylene vinyl acetate eva or of polyvinyl butyral pvb u2192 a first 400 nm electrically conducting layer 25 of 30 sno 2 f laid down on the glass 22 using cvd u2192 a first 40 nm layer 26 of anodic electrochromic material made of hydrated iridium oxide iro x h y which may be replaced by a layer of hydrated nickel oxide u2192 a second 100 nm layer 28 of hydrated tantalum oxide u2192 a second 370 nm layer.