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AssigneeDuPont Teijin Films U.S. Limited Partnership
InventorsWilliam A. MacDonald, Duncan Henry MacKerron, Robert W. Eveson, Karl Rakos
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A method of improving the flexibility of a coated polyester substrate for an electronic device comprising a coated polyester substrate layer and an electrode layer comprising conductive material, said method comprising: (a) providing a polyester film; and (b) disposing an organic/inorganic hybrid coating on one or both surfaces of said polyester film, wherein said coating is derived from a coating composition comprising a low molecular weight reactive component selected from monomeric acrylates and/or an unsaturated oligomeric component selected from acrylates, polyether acrylates, epoxy acrylates and polyester acrylates; a solvent; and inorganic particles, and optionally further comprising a photoinitiator.
A method of improving the flexibility of a coated polyester substrate for an electronic device comprising a coated polyester substrate layer and an electrode layer comprising conductive material, said method comprising:
A method of improving the flexibility of an electronic device comprising a coated polyester substrate layer and an electrode layer comprising conductive material, said method comprising:
A method of improving the flexibility of an electronic device comprising a coated polyester substrate layer and an electrode layer comprising conductive material, said method comprising:
A method according to any preceding claim further comprising the step of disposing an electrode layer comprising conductive material on one or both surfaces of said coated polyester substrate layer.
A method according to any preceding claim, wherein the improvement in flexibility is such that the coated polyester substrate layer can be elongated in the transverse direction at a draw rate of 60 mm/min by 3% or more of its original dimension before a first crack appears in the coating of the coated polyester substrate.
A method according to any preceding claim, wherein the improvement in flexibility is such that the composite structure comprising said coated polyester substrate layer and electrode layer comprising conductive material can be elongated in the transverse direction at a draw rate of 60 mm/min by 3% or more of its original dimension before a first crack appears in the conductive material of the electrode layer.
A method according to any preceding claim, wherein the improvement in flexibility is such that the coated polyester substrate layer has a critical radius of curvature of about 10 mm or less.
A method according to any preceding claim, wherein the improvement in flexibility is such that the composite structure comprising said coated polyester substrate layer and electrode layer comprising conductive material has a critical radius of curvature of about 10 mm or less.
A method according to any preceding claim, wherein said inorganic particles have an average particle diameter of from about 0.005 to about 3 μm.
A flexible electronic device comprising a polyester substrate and an electrode layer comprising a conductive material, and further comprising on one or both surfaces of said polyester substrate an organic/inorganic hybrid coating derived from a coating composition comprising a low molecular weight reactive component selected from monomeric acrylates and/or an unsaturated oligomeric component selected from acrylates, polyether acrylates, epoxy acrylates and polyester acrylates;
A method of manufacture of a rollable electronic display comprising a coated polyester substrate layer and an electrode layer comprising conductive material, said method comprising:
A method or device according to any preceding claim, wherein the electronic device is an electronic display.
A composite film comprising:
A method, device or film according to any preceding claim, wherein said inorganic particles are preferably present in an amount of from about 5% to about 60% by weight of the solids components of the coating composition.
A method, device or film according to any preceding claim, wherein said inorganic particles are selected from silica and metal oxides.
A method, device or film according to any preceding claim wherein said coating composition is UV-curable.
A method, device or film according to any preceding claim wherein said coating is derived from a UV-curable composition comprising monomeric acrylates, silica particles and a photoinitiator.
A method, device or film according to any preceding claim wherein said coating layer has a dry thickness of from 1 to 20 microns.
A method, device or film according to any preceding claim wherein the coated polyester substrate layer exhibits a surface having an Ra value of less than 0.7 nm and/or an Rq value of less than 0.9 nm.
A method, device or film according to any preceding claim wherein the electrode layer is a patterned layer of a conductive material.
A method, device or film according to any preceding claim wherein the conductive material of the electrode layer is selected from gold, silver, aluminium platinum, palladium, nickel and indium tin oxide.
A method, device or film according to any preceding claim wherein said polyester is poly(ethylene naphthalate) or poly(ethylene terephthalate).
A method, device or film according to any preceding claim, wherein the polyester substrate or film is a biaxially oriented polyester film.
A method, device or film according to any preceding claim wherein said polyester substrate or film is a heat-stabilised, heat-set, biaxially oriented polyester film.
Dependencies are inferred from the claim text.