Spatially variable hydrophobic layers for digital microfluidics
US11927740B2 · kind B2 · utility
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74References
19Claims
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Key dates
| Filing date | Nov 19, 2020 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0427
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An active matrix electrowetting on dielectric (AM-EWoD) device including a substrate with thin-film transistors (TFT), a dielectric layer, and a spatially variable wettability layer covering the dielectric layer. As depicted herein, the spatially variable wettability layer may include a plurality of portions having different contact angles, one or more contact angle gradients, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.