Methods for producing droplets for use in capsule-based electrophoretic displays
AssigneeE Ink Corporation
InventorsGregg M. Duthaler, Andrew L. Loxley
Life of this patent
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Abstract
Methods are provided for forming a dispersion of substantially uniform droplets. An internal phase that includes a plurality of particles suspended in a first fluid is provided and an external phase including a second fluid is provided. The internal phase is vibrated and the internal phase is applied to the external phase. Either the internal phase or a combination of the internal and external phases form a series of droplets or complex droplets of substantially uniform size.
Claims22
A method for forming substantiall3y uniform droplets, the method comprising the steps of:
- (a) providing a non-aqueous internal phase comprising a plurality of particles suspended in a first fluid;
- (b) providing an external phase comprising a second fluid;
- (c) vibrating the internal phase;
- and
- (c) applying the internal phase to the external phase, wherein a series of droplets of substantially uniform size is formed.
A method for forming substantially uniform droplets, the method comprising the steps of:
- (a) providing a non-aqueous internal phase comprising a plurality of particles suspended in a first fluid;
- (b) providing an external phase comprising a second fluid;
- and
- (c) applying the internal phase to the external phase through an aperture in a container, wherein the internal phase is moved relative to the external phase such that as the internal phase contacts the external phase a droplet separates from a remainder of the internal phase and such that a series of droplets of substantially uniform size is formed.
A method for forming substantially uniform droplets, the method comprising the steps of:
- (a) providing a non-aqueous internal phase comprising a plurality of particles suspended in a first fluid;
- (b) providing an aqueous external phase comprising a second fluid;
- and
- (c) applying the internal phase to the external phase, wherein the internal phase is pressurized and pulsed through a valve such that the internal phase forms a series of droplets of substantially uniform size.
Dependencies are inferred from the claim text.