Patent ID: 11959000
Assignee: WAKAYAMA PREFECTURE
Field: Other special machines (Mechanical engineering)
Classification: CPC C  G  Y | IPC C

Claim 13:
14. A method of producing a photon up-conversion film, comprising:
preparing an oil-in-water emulsion from an aqueous solution of a water-soluble resin, and an oily solvent solution of a sensitizing component and a light-emitting component, or an oily solvent dispersion thereof;
applying the oil-in-water emulsion to a substrate to form a coating film;
drying the coating film; and
applying an external force and/or heat to the dried coating film to form a film, which includes a matrix including the water-soluble resin and a pore portion, and in which the sensitizing component and the light-emitting component are present at an interface between the matrix and the pore portion.