Electro-optic displays, and processes for the production thereof
AssigneeE Ink Corporation
InventorsRichard J. Paolini, Jr., Thomas H. Whitesides, Steven J. O'Neil, Gregg M. Duthaler
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Abstract
An encapsulated electrophoretic display is produced by laminating an electrophoretic medium, comprising a plurality of discrete droplets (104) in a polymeric binder (106′), each droplet (104) comprising a plurality of electrophoretic particles dispersed in a suspending fluid, to a backplane (110) having at least one electrode at a temperature such that the polymeric binder (106′) flows and secures the electrophoretic medium to the backplane (110).
Claims25
A process for producing an encapsulated electrophoretic display, the process comprising:
- providing an electrophoretic medium comprising a plurality of discrete droplets in a polymeric binder, each droplet comprising a plurality of charged particles dispersed in a suspending fluid and capable of moving therethrough on application of an electric field to the suspending fluid;
- providing a backplane having at least one electrode;
- and
- laminating the electrophoretic medium to the backplane at a temperature at which the polymeric binder will flow and with the electrophoretic medium in direct contact with the backplane, thereby causing the polymeric binder to flow and secure the electrophoretic medium to the backplane to form the display.
An electrophoretic medium comprising a plurality of discrete droplets of electrophoretic medium in a polymeric binder, each droplet comprising a plurality of charged particles dispersed in a suspending fluid and capable of moving therethrough on application of an electric field to the suspending fluid, wherein the polymeric binder flows at a temperature of not more than about 150° C.
An article of manufacture comprising, in order:
- a light-transmissive electrically-conductive layer;
- an electrophoretic medium comprising a plurality of discrete droplets of electrophoretic medium in a polymeric binder, each droplet comprising a plurality of charged particles dispersed in a suspending fluid and capable of moving therethrough on application of an electric field to the suspending fluid, the polymeric binder flowing at a temperature of not more than about 150° C.;
- and
- a release sheet in contact with the polymeric binder.
An article of manufacture comprising:
- a layer of an electrophoretic medium comprising a plurality of discrete droplets of electrophoretic medium in a polymeric binder, each droplet comprising a plurality of charged particles dispersed in a suspending fluid and capable of moving therethrough on application of an electric field to the suspending fluid, the polymeric binder flowing at a temperature of not more than about 150° C., the layer having first and second surfaces on opposed sides thereof;
- a first release sheet covering the first surface of the layer of electrophoretic medium;
- and
- a second release sheet covering the second surface of the layer of electrophoretic medium.
Dependencies are inferred from the claim text.