Additive particles for improving optical performance of an electrophoretic display
US10578943B2 · kind B2 · utility
0Cited by
32References
17Claims
0Family size
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Key dates
| Filing date | Aug 28, 2017 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | Aug 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to an electrophoretic fluid which comprises additive particles. The concentration of the additive particles in the electrophoretic fluid does not exceed 25% by weight and the additive particles are not seen at the viewing side during operation of the display. The resulting fluid can improve optical performance of a display device, such as image stability and contrast ratio. The present invention is also directed to an electrophoretic display comprising the electrophoretic fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.