Prism sheet, backlight unit and liquid crystal display
First Claim
1. A backlight unit configured to illuminate a liquid crystal panel, comprising:
- at least one light source generating light to be provided to the liquid crystal panel; and
at least one prism sheet disposed at the back of the liquid crystal panel to collimate the light such that the light through the prism sheet becomes substantially perpendicular to the viewing plane of the liquid crystal panel, the prism sheet including;
a protective layer including a base material consisting of a light-transmissive resin; and
a plurality of diffusion particles distributed in the protective layer to scatter the light input into the base material;
a base film disposed on a surface of the protective layer, wherein the light emitted from the protective layer is input into the base film; and
a plurality of linear prisms having a pitch of between about 32 μ
m and about 36 μ
m and disposed in parallel on a surface of the base film.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a liquid crystal display having excellent brightness without moiré patterns. The present invention also relates to a prism sheet and backlight unit which may improve the brightness of the liquid crystal display while removing the moiré patterns. A prism sheet comprises a protective layer including a base material consisting of a light-transmissive resin; and a plurality of diffusion particles distributed in the protective layer to scatter the light input into the base material; a base film disposed on a surface of the protective layer, wherein the light emitted from the protective layer is input into the base film; and a plurality of linear prisms having a pitch of between about 32 μm and about 38 μm and disposed in parallel on a surface of the base film.
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Citations
19 Claims
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1. A backlight unit configured to illuminate a liquid crystal panel, comprising:
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at least one light source generating light to be provided to the liquid crystal panel; and at least one prism sheet disposed at the back of the liquid crystal panel to collimate the light such that the light through the prism sheet becomes substantially perpendicular to the viewing plane of the liquid crystal panel, the prism sheet including; a protective layer including a base material consisting of a light-transmissive resin; and
a plurality of diffusion particles distributed in the protective layer to scatter the light input into the base material;a base film disposed on a surface of the protective layer, wherein the light emitted from the protective layer is input into the base film; and a plurality of linear prisms having a pitch of between about 32 μ
m and about 36 μ
m and disposed in parallel on a surface of the base film. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A liquid crystal display comprising:
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a liquid crystal panel displaying images according to electrical signals provided from the outside device; and a backlight unit configured to illuminate a liquid crystal panel, comprising; at least one light source generating light to be provided to the liquid crystal panel; and at least one prism sheet disposed at the back of the liquid crystal panel to collimate the light such that the light through the prism sheet becomes substantially perpendicular to the viewing plane of the liquid crystal panel, the prism sheet including; a protective layer including a base material consisting of a light-transmissive resin; and
a plurality of diffusion particles distributed in the protective layer to scatter the light input into the base material;a base film disposed on a surface of the protective layer, wherein the light emitted from the protective layer is input into the base film; and a plurality of linear prisms disposed in parallel on a surface of the base film. - View Dependent Claims (9, 10, 11, 13, 14)
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12. The liquid crystal display of clam 11, wherein the plurality of beads are substantially of the same size.
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15. A prism sheet comprising:
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a protective layer including a base material consisting of a light-transmissive resin; and
a plurality of diffusion particles distributed in the protective layer to scatter the light input into the base material;a base film disposed on a surface of the protective layer, wherein the light emitted from the protective layer is input into the base film; and a plurality of linear prisms having a pitch of between about 32 μ
m and about 36 μ
m and disposed in parallel on a surface of the base film. - View Dependent Claims (16, 17, 18, 19)
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Specification