Back to results
US 11,378,824 B2Granted
Flexible encapsulated electro-optic media
AssigneeE Ink Corporation
InventorDarwin Scott Bull
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeE Ink Corporation
InventorDarwin Scott Bull
Estimating the term…
An electro-optic medium is disclosed including a continuous phase comprising a binder and a discontinuous phase comprising electro-optic material. The binder may include one or more elastomers having a Young's modulus less than 25 MPa. The electro-optic material may include capsules that encapsulate various kinds of materials capable of switching optical states, such as a plurality of charged particles dispersed in a suspending fluid and capable of moving upon application of an electric field to the suspending fluid. The electro-optic medium may be incorporated into a laminated flexible electro-optic display having an outer light-transmissive protective layer and conductive material on either side of the electro-optic medium. The conductive material on at least one side of the electro-optic medium may also be light-transmissive. The opposing side of the display relative to the outer protective layer may also include a substrate.
An electro-optic medium comprising a continuous phase comprising a binder and a discontinuous phase comprising electro-optic material, wherein the binder comprises an elastomer that is a block copolymer and has a Young's modulus less than 25 MPa.
An electro-optic medium comprising a continuous phase comprising a binder and a discontinuous phase comprising electro-optic material, wherein the binder comprises an elastomer that is an acrylic polymer and has a Young's modulus less than 25 MPa.
An electro-optic medium comprising a continuous phase comprising a binder and a discontinuous phase comprising electro-optic material, wherein the binder comprises an ethylene-propylene-diene monomer rubber elastomer selected from the group consisting of ethylene propylene diene terpolymers, ethylene octene copolymers, ethylene butene copolymers, ethylene octene terpolymers, ethylene butene terpolymers, ethylene vinylacetate, and ethylene methylacrylate, and wherein the elastomer has a Young's modulus less than 25 MPa.
An electro-optic medium comprising a continuous phase comprising a binder and a discontinuous phase comprising electro-optic material, wherein the binder comprises an elastomer having a Young's modulus less than 25 MPa and having a glass transition temperature in a range from −125 to +20° C.
An electro-optic medium comprising a continuous phase comprising a binder and a discontinuous phase comprising electro-optic material, wherein the binder comprises an elastomer having a Young's modulus less than 25 MPa, and wherein the binder further comprises at least one non-elastomeric polymer selected from the group consisting of polysaccharides, polyvinyl alcohols, N-methylpyrrolidone, N-vinylpyrrolidone, polyethylene glycol, poly(2-hydroxyethyl acrylate), latices of polyurethanes optionally compounded with one or more of acrylics, polyesters, polycarbonates, silicones, an epoxidized vegetable oil fatty acid, an epoxidized ester of a vegetable oil fatty acid, and combinations thereof.
Dependencies are inferred from the claim text.