| 摘要 |
The display device comprises a driver ( 10, 16 ) which supplies drive pulses to the pixels ( 18 ) to bring the pixels ( 18 ) in a predetermined optical state corresponding to image information to be displayed. A controller ( 15 ) controls the driver ( 10, 16 ) to successively supply a drive pulse (Vni) and a correction pulse (dni). The drive pulse (Vni) has a voltage level that is sufficiently high to bring the electrophoretic particles ( 8, 9 ) into a continuously moving state as long as the drive pulse (Vni) is present. Due to the history of the drive of the pixel ( 18 ) the desired optical state will usually be reached approximately only. The correction pulse (dni) has a voltage level which is too low for bringing the electrophoretic particles ( 8, 9 ) into a continuously moving state, as the drive pulse (Vni) does, but high enough for moving the electrophoretic particles ( 8, 9 ) over a relatively small distance with respect to dimensions of the pixels ( 18 ). Thus, the correction pulse (dni) causes a relatively small movement of the electrophoretic particles ( 8, 9 ) towards an equilibrium state.
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