'Electric-paint displays' with carbon counter electrodes
'Elec.-paint displays' are electrochromic displays with dyed nanostructured metal-oxide electrodes, e.g. viologen-derivatized nanostructured titanium dioxide electrodes. Such displays are particularly promising for applications with low switch frequency, large segment areas, and high demands on colors, background brightness, and large viewing-angles. The concept is simple and well suited for inexpensive industrial prodn. methods. Blue-on-white elec.-paint displays with porous carbon counter electrodes are presented. The initial results with lab. prototypes are promising. The switch time is about 1/2 s and the reflectance in the bleached state is as high as 40-55% in the visible region. Furthermore, the display prototypes sustain more than 100000 switching cycles without severe degrdn. The results from spectroelectrochem. measurements on the assembled displays are presented.
Record created on 2015-07-06, modified on 2016-10-01