Electrophoretic display device and method for manufacturing the same
US8432607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2011 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1681
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophoretic display device includes a lower substrate having pixel electrodes thereon to define a plurality of pixel areas; partition walls formed on the lower substrate to surround the pixel electrodes; electrophoretic dispersion liquid having a plurality of charged particles colored to display colors, the electrophoretic dispersion liquid filled into the plurality of the pixel areas defined by pixel electrodes and surrounding the partition walls; a membrane layer disposed on the partition walls and covering the electrophoretic dispersion liquid, the membrane layer comprising a plurality of hole patterns at portions corresponding to the plurality of the pixel areas; and an upper substrate bonded with the lower substrate such that the membrane layer is disposed therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.