| 摘要 |
A display unit comprising electro-wetting pixels ( 1300 ) is provided. The inventive pixels ( 1300 ) provide bistable or multi-stable pixel states and thus facilitates passive matrix addressing. For this purpose an additional electrode ( 1305 ) is arranged for each multi-stable state. Consequently, each pixel comprises one counter electrode ( 1306 ) and at least one pair of address and retain electrodes ( 1304, 1305 ). In order to activate a pixel, an address potential is applied to the address and retain electrodes ( 1304, 1305 ) in relation to the counter electrode ( 1306 ), and in order to deactivate a pixel the potential is removed. In order to retain a current pixel state a retain potential is applied to only the retain electrode ( 1305 ) in relation to the counter electrode ( 1306 ); the current pixel state, be it active or passive, will then be preserved and the retain potential configuration thus provides a bistable pixel state. |
