| 摘要 |
An electrophoretic display panel ( 1 ) for displaying pictures has a first and a second opposed substrate ( 8,9 ), an electrophoretic medium ( 5 ) between the substrates ( 8,9 ), a plurality of pixels ( 2 ) and drive means ( 100 ). The electrophoretic medium ( 5 ) has charged particles ( 6 ) in a fluid. The first and the second substrate ( 8,9 ) have for each pixel ( 2 ) a first and a second electrode ( 3,4 ), for receiving a potential difference. The potential difference determines positions of the charged particles ( 6 ). The drive means ( 100 ) are able to control the potential difference of each pixel ( 2 ). The switching time is the time interval to change, in operation, the position of the charged particles ( 6 ) between the first and the second electrode ( 3,4 ). For the display panel ( 1 ) to be able to have a reproducible switching time the display panel ( 1 ) further has heating means ( 13 ) for heating the medium ( 5 ) to a medium temperature in the range of 30 ° C. and 70 ° C.
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