| 摘要 |
A display device ( 1 ) has electrophoretic particles ( 8, 9 ), a display element including electrodes ( 5, 6 ), between which a portion of the electrophoretic particles ( 8, 9 ) is present, a temperature sensor ( 25 ) and a processor ( 15 ) for supplying a driving pulse ( 32 ) to the electrodes ( 5, 6 ) to bring the display element to a predetermined black, gray or white state, corresponding to the image information to be displayed. For improved grayscale accuracy and optimal picture and text quality, the processor ( 15 ) is further arranged to supply pre-pulses ( 31 ) preceding the driving pulses ( 32 ). The energy of the pre-pulses ( 31 ) is increased with increased temperature measured by the temperature sensor ( 25 ) and is sufficient to release the electrophoretic particles at a first position near one of the two electrodes ( 5, 6 ), but too low to enable the particles to reach a second position near the other electrode ( 5 or 6 ).
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