Dispersion liquid for electrophoretic display, display medium, and display device
US9348193B2 · kind B2 · utility
52Cited by
1References
8Claims
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Key dates
| Filing date | Dec 18, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided a dispersion liquid for electrophoretic display, containing a dispersion medium 50, a colored electrophoretic particle group 34 that is dispersed in the dispersion medium and migrates in the dispersion medium according to an electric field, a non-electrophoretic particle group 36 that is dispersed without migrating in the dispersion medium and has a color different from that of the electrophoretic particle group, and a compound having a neutral polar group and a hydrophobic group, which is contained in the dispersion medium in a ratio of about 0.01 to about 1 mass % based on the entire dispersion liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.