Patent ID: 7564436

Claim:
A flexible, voltage driven, display comprising an apparatus for compensating for variations in luminescence and/or color in the flexible display, said variations being associated with a bending of said flexible display, said apparatus for compensating comprising: measurement means for measuring a cell gap at a part of the flexible display, and adjustment means for adjusting voltages, which are applied to said part of said flexible display, depending on the measured cell gap, characterized in that the measurement means are set to repeatedly measure the cell gap, and the adjustment means are set to repeatedly adjust the applied voltages in response to the measured cell gap, and wherein the flexible display is an active-matrix display comprising a plurality of pixels and a plurality of conductors, and wherein the measurement means are set to measure the cell gap at a part of the display by measuring the time which is required for charging a pixel when a constant voltage is supplied on an associated conductor.