Patent ID: 11921394
Assignee: NUCLERA LTD
Field: Optics (Instruments)
Classification: CPC G  C  H | IPC G

Claim 0:
1. An electrowetting on dielectric (EWoD) device having electrodes disposed in an array where each electrode is associated with a thin film transistor (TFT), the device comprising:
a layered dielectric comprising:
a first layer of an aluminum oxide or a hafnium oxide, the first layer having a thickness between 20 nm and 40 nm;
a second layer of a tantalum oxide or a hafnium oxide, the second layer having a thickness between 40 nm and 250 nm; and
a third layer of a tantalum oxide or a hafnium oxide, the third layer having a thickness between 10 nm and 35 nm, wherein the second layer is disposed between the first and third layers; and

a hydrophobic layer deposited on the layered dielectric.