Electro-optic displays, and processes for the production thereof
AssigneeE Ink Corporation
InventorsStephen Bull, Jay William Anseth, George G. Harris
Life of this patent
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Abstract
Improvements in the production of electro-optic displays include: (a) use of a masking film to keep a selected area of a backplane (such as a front electrode contact) free from electro-optic material; (b) spray coating of electrophoretic capsules on to a substrate under controlled conditions; (c) forming a monolayer of capsules on a substrate by prior deposition of a water-swellable polymer; and (d) overcoating a layer of electro-optic material with a solvent-free polymerizable liquid material, contacting this layer with a light-transmissive electrode layer, and polymerizing the liquid material to adhere the electrode layer to the electro-optic material.
Claims6
A process for forming a monolayer of capsules on a substrate, the process comprising:
- depositing a solution of a water-swellable polymer on the substrate;
- and
- thereafter depositing a quantity of the capsules sufficient to form a monolayer of capsules on the substrate, and allowing the capsules to arrange themselves into a monolayer on the substrate.
Dependencies are inferred from the claim text.