Electrowetting cell with stepped lateral wall electrodes
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United States of America Patent
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Apr 23, 2019
Grant Date -
N/A
app pub date -
Dec 14, 2017
filing date -
Dec 14, 2017
priority date (Note) -
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Abstract
A system comprises a driver and an electrowetting cell controlled by the driver that includes a substrate that includes a well filled with at least two non-mixing media. The well has lateral walls and a stepped control channel electrode matrix including multiple stepped control channel electrode arrays. The lateral walls can collectively form a continuous perimeter around the well (e.g., circle shaped). Each stepped control channel electrode array includes a number of stepped control channel electrodes formed at different longitudinal levels along a respective lateral wall. Each stepped control channel electrode is independently controllable to control a shape of the at least two non-mixing media via an electric field. Each lateral wall encloses the at least two non-mixing media inside the well.
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