ELECTROWETTING DEVICES ON FLAT AND FLEXIBLE PAPER SUBSTRATES
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United States of America Patent
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Issued Date -
Aug 22, 2013
app pub date -
Jun 30, 2011
filing date -
Jun 30, 2010
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Abstract
Electro wetting devices and methods. The electro wetting device 10 includes a grounded electrode 14 on one side of a paper substrate 12. A dielectric layer 16 and a hydrophobic film 20 are sequentially layered onto the grounded electrode 14. The hydrophobic film 20 is configured to impart a contact angle on a polar liquid 18. A polar liquid 18 is in contact with the hydrophobic film 20 and a voltage source 22 couples the grounded electrode 14 to the polar liquid 18. When an electric field is applied by the voltage source 22, the contact angle of the polar liquid 18 decreases.
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