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US 8,517,551 B2Granted
Phosphor sheet, a diffusion plate, an illuminating device, and a display unit
AssigneeDexerials Corporation
InventorsTsubasa Tsukahara, Naoji Nada, Ryo Kasegawa, Yasushi Ito, Yoshihiro Oshima
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Abstract
A phosphor sheet having a laminated structure including a first barrier material, a first barrier material, a first color conversion layer, a second color conversion layer, and a second barrier layer and a display unit and an illuminating device including display unit is provided. A diffusion plate and a display unit including a diffusion plate are also provided.
Claims34
A phosphor sheet having a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first and second barrier materials have a moisture vapor transmittance of 0.052/day to 5 g/m2/day.
3 more elements
A phosphor sheet having a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first and second barrier materials include a resin selected from the group consisting of:
- polycarbonate;
- polyethylene terephthalate;
- polyethylene naphthalate;
- polystyrene;
- polyether sulfone;
- cyclic amorphous polyolefin;
- a multifunctional acrylate;
- a multifunctional polyolefin;
- an unsaturated polyester;
- and an epoxy resin.
13 more elements
A phosphor sheet having a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer.
- wherein the first resin layer includes a first adhesive which inhibits deterioration of the first color phosphor and the second resin layer includes a second adhesive which inhibits deterioration of the second color phosphor.
3 more elements
A display unit comprising:
- a display panel;
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes to illuminate the display panel,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first and second barrier materials have a moisture vapor transmittance of 0.05 g/m2/day to 5 g/m2/day.
8 more elements
A display unit comprising:
- a display panel:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes to illuminate the display panel,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer:
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first resin layer includes a first adhesive which inhibits deterioration of the first color phosphor and the second resin layer includes a second adhesive which inhibits deterioration of the second color phosphor.
8 more elements
A display unit comprising:
- a display panel:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes to illuminate the display panel,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the light source includes a plurality of light emitting diodes arranged on a light emitting side of a substrate.
8 more elements
A display unit comprising:
- a display panel;
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes to illuminate the display panel,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the light source includes a light emitting diode arranged at a side face of a light guide plate.
8 more elements
A display unit comprising:
- a display panel;
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes to illuminate the display panel,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the phosphor sheet converts non-white light emitted from the light source to white light to illuminate the display panel.
8 more elements
An illuminating device comprising:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first and second barrier materials have a moisture vapor transmittance of 0.05 g/m2/day to 5 g/m2/day.
7 more elements
An illuminating device comprising:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first resin layer includes a first adhesive which inhibits deterioration of the first color phosphor and the second resin layer includes a second adhesive which inhibits deterioration of the second color phosphor.
7 more elements
An illuminating device comprising:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the first and second adhesives are different.
7 more elements
An illuminating device comprising:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the light source includes a light emitting diode arranged at a side face of a light guide plate.
7 more elements
An illuminating device comprising:
- a light source;
- and
- a phosphor sheet through which light emitted from the light source passes,
- wherein the phosphor sheet has a laminated structure comprising:
- a first barrier material;
- a first color conversion layer provided on the first barrier material, the first color conversion layer including a first color phosphor dispersed in a first resin layer;
- a second color conversion layer provided on the first color conversion layer, the second color conversion layer including a second color phosphor dispersed in a second resin layer;
- and
- a second barrier material provided on the second color conversion layer,
- wherein the phosphor sheet converts non-white light emitted from the light source to white light.
7 more elements
A diffusion plate comprising:
- a first barrier material;
- a second barrier material;
- a laminated structure provided between the first and second barrier materials, the laminated structure comprising a first color conversion diffusion plate and a second color conversion diffusion plate provided on the first color conversion diffusion plate;
- a first adhesive layer provided on a top face of the laminated structure to seal the laminated structure to the first barrier material;
- and a second adhesive layer provided on a bottom face of the laminated structure to seal the laminated structure to the second barrier material;
- wherein the first color diffusion plate includes a first color phosphor dispersed therein and the second color diffusion plate includes a second color phosphor dispersed therein.
3 more elements
A display unit comprising:
- a display panel;
- a light source;
- and a diffusion plate through which light emitted from the light source passes to illuminate the display panel, wherein the diffusion plate comprises:
- a first barrier material;
- a second barrier material;
- a laminated structure provided between the first and second barrier materials, the laminated structure comprising a first color conversion diffusion plate and a second color conversion diffusion plate;
- a first adhesive layer provided on a top face of the laminated structure to seal the laminated structure to the first barrier material;
- and a second adhesive layer provided on a bottom face of the laminated structure to seal the laminated structure to the second barrier material, and wherein the first color diffusion plate includes a first color phosphor dispersed therein and the second color diffusion plate includes a second color phosphor dispersed therein.
5 more elements
Dependencies are inferred from the claim text.