Patent ID: 8379288
Filing Date: 2013-02-19
Classification: G02F

Abstract:
1. A transparent electroactive system, that allows clear vision through said system, comprising: external walls defining a closed volume, the system being transparent for a direction of sight passing through the external walls and said closed volume between two opposite sides; a liquid and/or a gel contained in the closed volume; two transparent electrodes, in contact with said liquid or gel on electron transfer surfaces, and intended to be respectively connected to two terminals of a variable power supply; first and second electroactive substances distributed in the liquid or gel, with different respective redox potentials, at least some of the first and second electroactive substances having an optical effect variable between an oxidized form and a reduced form of said substances, wherein the two electrodes are borne by a same one of the two external walls, being juxtaposed parallel to said external wall on a same one of the sides of the closed volume containing the liquid or gel, with a separation distance between said electrodes of less than 250 μm, and in that the system furthermore comprises a barrier extending between the two electrodes, to a height of between 1 and 20 μm towards the interior of the closed volume, said height being measured from a mean level of the electron transfer surfaces of the two electrodes.