Electro-wetting display device
US7847996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3433
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An exemplary electro-wetting display (EWD) device (30) includes a first substrate (31), a second substrate (39) facing the first substrate, a hydrophobic insulator (36) provided between the first and second substrates, a first fluid (33), a second fluid (32) and colored layers (38). The first fluid and the second fluid are immiscible and disposed between the hydrophobic insulator and the first substrate. The second fluid is electro-conductive or polar. The first fluid is located between the hydrophobic insulator and the second fluid. Colored layers may be located between the hydrophobic insulator and the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.