摘要 |
<p>On each part of each electrode-line (-column) of the screen facing an interval separating two electrodes-columns (-lines) is arranged an element (40, 50) preventing light arriving to the screen in the direction of the element from traversing the screen. The elements arranged on the electrodes-lines (32) or those arranged on the electrodes-columns (34) provide for the electric connection-free spacing of the screen plates and the location of zig-zag faults that the liquid crystal may have in or at the vicinity of the non-switchable zone of the screen. As to the treatment, the screen is appropriately heated and an electric alternating voltage is applied between the electrodes in order to locate the zig-zag faults of the liquid crystal at the vicinity of the spacing elements. In order to obtain them, a positive resin layer may be isolated, through the plate intended to carry these elements and previously provided with opaque layers on the portions corresponding to said elements. Application to the display of information.</p> |