| 摘要 |
Methods and systems for writing and erasing electric writeable media are disclosed. An electric writeable medium may include a backplane electrode, a display layer including a plurality of elements and a top layer. The medium may further include a plurality of island electrodes. To enable writing to the medium, a stylus is charged to a positive voltage and the backplane electrode is grounded. The stylus is applied to the top layer and/or the island electrodes to deposit charge, which causes proximate elements to display a first color. If the top layer is a resistive layer, grounding the resistive layer and applying a positive voltage to the backplane electrode sufficient to change the displayed color of the elements erases the medium. If the top layer is a photoconductive layer, a light source is further required to enable the photoconductive layer to operate as an electrode when erasing the medium.
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