Patent ID: 6365949
Filing Date: 2002-04-02
Classification: G02F,H01B,H05K

Abstract:
Device for displaying information, comprising at least:a first layer which extends in one plane and is composed of a material whose optical properties vary under the influence of an external electrical control system in such a way that either the transparency of portions selected with the electrical control system of the first layer for light incident thereon varies or portions selected with the electrical control system of the first layer emit light; a second and a third layer which extend substantially parallel to the plane, are situated on either side of the first layer and impart to the device a certain desired rigidity, at least one of the second and third layers having a first conductivity and being provided with at least one electrode and with electrically conducting channels which are extending exclusively in a direction perpendicular to the plane, said channels having a second conductivity substantially larger than the first conductivity, said at least one electrode electrically contacting at least one of said channels, wherein said at least one electrode has a minimum dimension (D) in a contact area with said at least one of the second and third layers, mutual distances between at least some adjacent ones of the plurality of channels being smaller than said minimum dimension (D) of said at least one electrode, and wherein maximum mutual distances between all adjacent ones of the plurality of channels are smaller than said minimum distance (D) of said at least one electrode.