Electrophoretic display device
US7839563B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 27, 2010 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0242
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophoretic display device includes a plurality of pixel electrodes arranged on a lower substrate, and an upper substrate having a common electrode that covers an entire area corresponding to a display surface. The electrophoretic display device further includes an electrophoretic ink layer having a plurality of cavities. Each of the cavities contains suspension fluid and a plurality of charged pigment particles dispersing in the suspension fluid. The electrophoretic display device also includes a plurality of pixel units, each of which includes three of the plurality of cavities. Each of the three cavities contains the black particles and particles of the red particles, green particles, or blue particles, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.