Electro-osmotic displays and materials for making the same
First Claim
1. An encapsulated electrophoretic display, comprising a capsule containing at least two immiscible fluids, each fluid having a different refractive index such that the fluids create a first optical effect, wherein at least one of the fluids within the capsule moves to create a second optical effect in response to an electric field, and wherein at least one of the fluids contains a dye.
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Abstract
Disclosed herein are novel electrophoretic displays and materials useful in fabricating such displays. In particular, novel encapsulated displays are disclosed. Particles encapsulated therein are dispersed within a suspending, or electrophoretic, fluid. This fluid may be a mixture of two or more fluids or may be a single fluid. The displays may further comprise particles dispersed in a suspending fluid, wherein the particles contain a liquid. In either case, the suspending fluid may have a density or refractive index substantially matched to that of the particles dispersed therein. Finally, also disclosed herein are electro-osmotic displays. These displays comprise at least one capsule containing either a cellulosic or gel-like internal phase and a liquid phase, or containing two or more immiscible fluids. Application of electric fields to any of the electrophoretic displays described herein affects an optical property of the display.
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Citations
3 Claims
- 1. An encapsulated electrophoretic display, comprising a capsule containing at least two immiscible fluids, each fluid having a different refractive index such that the fluids create a first optical effect, wherein at least one of the fluids within the capsule moves to create a second optical effect in response to an electric field, and wherein at least one of the fluids contains a dye.
Specification