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US 11,081,674 B2Granted
Organic EL panel-use transparent resin layer, organic EL panel, organic EL lighting device, and organic EL display
AssigneeHotaluX, Ltd.
InventorYoshikazu Sakaguchi
Life of this patent
Estimating the term…
Abstract
A transparent resin layer 12 for use in an organic EL panel includes: a transparent resin 121; and first fine particles 122 having an average particle diameter from 300 to 50000 nm and second fine particles 123 having an average particle diameter from 1 to 300 nm dispersed in the transparent resin 121. Alternatively, a transparent resin layer 42 for use in an organic EL panel includes a transparent resin 421 having an uneven structure, the uneven structure includes first projections 422 in which at least either the widths or the heights are from 300 to 1000 nm and second projections 423 in which at least either the widths or the heights are from 10 to 300 nm.
Claims19
A light-scattering layer for use in an organic EL panel, comprising:
- a transparent resin layer;
- and
- a planarizing layer,
- wherein the transparent resin layer comprises:
- a transparent resin;
- and
- a plurality of light-scattering fine particles dispersed in the transparent resin without protruding from a surface of the transparent resin, wherein the plurality of light-scattering fine particles comprise:
- a first fine particle group comprising light-scattering fine particles having an average particle diameter from 300 to 50000 nm, and
- a second fine particle group comprising light-scattering fine particles having an average particle diameter from 1 to 300 nm,
- wherein the refractive index of the planarizing layer is higher than that of the transparent resin layer, and
- wherein the transparent resin layer comprises a sheet or a film configured either to scatter light or to disperse light.
8 more elements
A light-scattering layer for use in an organic EL panel, comprising:
- a transparent resin layer;
- and
- a planarizing layer,
- wherein the transparent resin layer comprises:
- a transparent resin;
- and
- a plurality of light-scattering fine particles dispersed in the transparent resin without protruding from a surface of the transparent resin, wherein the plurality of light-scattering fine particles comprise:
- a first fine particle group comprising light-scattering fine particles having an average particle diameter from 300 to 50000 nm, and
- a second fine particle group comprising light-scattering fine particles having an average particle diameter from 1 to 300 nm,
- wherein the refractive index of the planarizing layer is higher than that of the transparent resin layer, and
- wherein the plurality of light-scattering fine particles comprise organic fine particles comprising at least one selected from the group consisting of a copolymer of methacrylic acid ester and styrene, a polycarbonate resin, a polymethylmethacrylate resin, a melamine resin, a polystyrene resin, and a silicone resin.
8 more elements
A light-scattering layer for use in an organic EL panel, comprising:
- a transparent resin layer;
- and
- a planarizing layer,
- wherein the transparent resin layer comprises:
- a transparent resin;
- and
- a plurality of light-scattering fine particles dispersed in the transparent resin without protruding from a surface of the transparent resin, wherein the plurality of light-scattering fine particles comprise:
- a first fine particle group comprising light-scattering fine particles having an average particle diameter from 300 to 50000 nm, and
- a second fine particle group comprising light-scattering fine particles having an average particle diameter from 1 to 300 nm,
- wherein the refractive index of the planarizing layer is higher than that of the transparent resin layer, and
- wherein the plurality of light-scattering fine particles comprise inorganic fine particles comprising at least one selected from the group consisting of a metal oxide, silica, zirconia, a barium sulfate, and a calcium carbonate.
8 more elements
A light-scattering layer for use in an organic EL panel, comprising:
- a transparent resin layer;
- and
- a planarizing layer,
- wherein the transparent resin layer comprises:
- a transparent resin;
- and
- a plurality of light-scattering fine particles dispersed in the transparent resin without protruding from a surface of the transparent resin, wherein the plurality of light-scattering fine particles comprise:
- a first fine particle group comprising light-scattering fine particles having an average particle diameter from 300 to 50000 nm, and
- a second fine particle group comprising light-scattering fine particles having an average particle diameter from 1 to 300 nm,
- wherein the refractive index of the planarizing layer is higher than that of the transparent resin layer, and
- wherein the light-scattering particles of the second fine particle group comprise organic fine particles.
8 more elements
A light-scattering layer for use in an organic EL panel, comprising:
- a transparent resin layer;
- and
- a planarizing layer,
- wherein the transparent resin layer comprises:
- a transparent resin;
- and
- an uneven structure formed in the transparent resin without protruding from a surface of the transparent resin, the uneven structure comprising a plurality of projections,
- wherein the plurality of projections comprises:
- a plurality of first projections, at least either the widths or the heights of the plurality of first projections being in the range from 300 to 3000 nm, and
- a plurality of second projections, at least either the widths or the heights of the plurality of second projections being in the range from 10 to 300 nm,
- wherein at least either the shapes or the sizes of the plurality of projections in the uneven structure have no periodicity,
- wherein the refractive index of the planarizing layer is higher than that of the transparent resin layer, and
- wherein the uneven structure is formed by subjecting a thermoplastic material to an imprint or subjecting a photoresist material to photolithography.
10 more elements
Dependencies are inferred from the claim text.