Mechanical stress mitigation in electrowetting display structures
US9046682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Dec 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The subject matter disclosed herein relates to an electrowetting display comprising: a dielectric barrier layer formed on a substrate; a hydrophobic layer formed on the dielectric barrier layer, wherein the dielectric barrier layer maintains a separation between the hydrophobic layer and the substrate; a patterned pixel grid formed on the hydrophobic layer, wherein the patterned pixel grid comprises rows and columns of pixel walls that form field pixels and border pixels; an oil film overlying the hydrophobic layer, wherein the oil film is partitioned by the patterned pixel grid; and an electrolyte overlying the oil film and the patterned pixel grid, wherein one or more of the rows or the columns of pixel walls of the patterned pixel grid includes a substantially nonlinear-shaped portion to reduce sheer stress between the patterned pixel grid and the hydrophobic layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.