Electrowetting element with protrusion
US10802266B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Nov 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0252
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electrowetting element comprising a first fluid, a second fluid immiscible with the first fluid, a first electrode, a second electrode in contact with the second fluid and a first and second support plate. The first support plate comprises the first electrode and a surface. The second support plate comprises a protrusion which overlaps a first surface portion of the surface and which, with a first voltage with a substantially zero magnitude applied between the first electrode and the second electrode, contacts the second fluid without substantially contacting the first fluid. Upon application of a second voltage with a non-zero magnitude between the first electrode and the second electrode, the first fluid moves such that there is substantially no contact between the first fluid and the first surface portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.