Display pixels, displays, and methods of operating display pixels
US8810882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Oct 5, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L3/502715
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Electrofluidic and electrowetting display pixels, electrofluidic and electrowetting displays, and methods of operating electrofluidic and electrowetting display pixels. The pixel includes a hydrophobic channel formed between first and second substrates and containing a polar fluid and a non-polar fluid, of which at least one is visible through at least one substrate. An electrode with a dielectric is electrically connected to a voltage source. A Laplace barrier defines a fluid pathway for fluid movement in the channel. The polar fluid moves a first position when the voltage source is biased at a first voltage of less than or equal to a threshold voltage to provide a first display state. The polar fluid moves to a second position when the voltage source is biased with a second voltage, greater than the first voltage, to provide a second display state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.