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US 10,120,110 B2Granted
Wavelength conversion sheet, backlight unit, and phosphor protective film
AssigneeToppan Printing Co., Ltd.
InventorsOsamu Tokinoya, Ikuno Higashi
Life of this patent
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Abstract
A wavelength conversion sheet includes a phosphor, and one or more barrier films that seal the phosphor. At least one of the barrier films includes a coating layer having an optical function. The coating layer is provided to a surface of the barrier film.
Claims23
A wavelength conversion sheet comprising:
- a phosphor,
- one or more barrier films that seal the phosphor, the one or more barrier films each including a first base material, and
- one or more plastic films each including a second base material, the one or more plastic films and the one or more barrier films being laminated together so as to provide a barrier layer between the first base material and the second base material,
- wherein at least one of the barrier films includes a coating layer having an optical function, the coating layer being structured to reduce at least interference fringes and being provided on the second base material,
- wherein the coating layer includes the binder resin layer and fine particles,
- wherein the coating layer has micro-irregularities on a surface thereof,
- wherein the one or more barrier films comprises the coating layer, the second base material, an adhesive layer, the barrier layer, and the first base material,
- wherein the coating layer is provided above a surface of the second base material on a side opposite to the first base material, and
- wherein the barrier film is disposed above the phosphor.
6 more elements
A phosphor protective film that protects quantum dot phosphors comprising:
- one or more barrier films each including a first base material, and one or more barrier layers provided on at least one surface of the first base material;
- and
- one or more plastic films each including a second base material, wherein:
- the barrier film and the plastic film are laminated so that the barrier layer is sandwiched between the first base material and the second base material,
- at least one of the barrier film and the plastic film has a coating layer that improves optical properties, and is structured to reduce at least interference fringes;
- and
- the coating layer is provided on a surface of the second base material,
- wherein the coating layer includes the binder resin layer and fine particles,
- wherein the coating layer has micro-irregularities on a surface thereof,
- wherein the coating layer includes the binder resin layer and fine particles,
- wherein the coating layer has micro-irregularities on a surface thereof,
- wherein the one or more barrier films comprises the coating layer, the second base material, an adhesive layer, the barrier layer, and the first base material,
- wherein the coating layer is provided above a surface of the second base material on a side opposite to the first base material, and
- wherein the barrier film is disposed above the quantum dot phosphors.
11 more elements
Dependencies are inferred from the claim text.