Method of controlling an electronic display and an apparatus comprising an electronic display

An apparatus comprising:

• an electronic display with a plurality of pixels settable in a plurality of reflection levels comprising a first level, a second level and a plurality of intermediate levels, wherein said intermediate levels form a substantially equidistant partition of a dynamic range between the first level and the second level;
• control means for setting the pixels in the first level, the second level and the plurality of intermediate levels;
• and
• wherein
• the control means is further arranged for setting the pixels in a preparatory intermediate level immediately prior to setting the pixels in a desired level selectable from said plurality of reflection levels;
• the pixels are settable in the plurality of reflection levels by a pulse-width modulation of a voltage applicable to said pixels;
• a first preparatory intermediate level and a second preparatory intermediate level are provided, and each intermediate level is assigned to either the first preparatory intermediate level or the second preparatory intermediate level;
• and
• the first preparatory intermediate level and the second preparatory intermediate level are spaced from each other on a curve by one or two frame times, the curve showing reflectivity variation as a function of the time the voltage is applied.