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US 2010/0246191 A1Published application
Optical sheet and method for producing the same
OwnerShotaro Ogawa, Yoshihisa Usamiinventors
Life of this patent
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Abstract
An optical sheet including a first layer having a concavo-convex pattern which reflects light, and a second layer laminated over the concavo-convex pattern and made of a light-transmissive material, wherein the optical sheet is disposed opposite to a light-emitting surface of a light-emitting element.
Claims17
An optical sheet comprising:
- a first layer having a concavo-convex pattern which reflects light, and
- a second layer laminated over the concavo-convex pattern and made of a light-transmissive material,
- wherein the optical sheet is disposed opposite to a light-emitting surface of a light-emitting element.
A method for producing an optical sheet, the method comprising:
- coating a support film with a curable resin which is a light-transmissive material,
- forming a second layer by curing the curable resin while a mold having a concavo-convex pattern in a surface thereof is being pressure-bonded to the curable resin, and
- forming a first layer by forming a thin film of a reflective material on the second layer,
- wherein the optical sheet comprises the first layer having the concavo-convex pattern which reflects light, and the second layer made of a light-transmissive material, and
- wherein the optical sheet is disposed opposite to a light-emitting surface of a light-emitting element.
2 more elements
A method for producing an optical sheet, the method comprising:
- forming a first layer by forming a concavo-convex pattern in a light-reflective sheet superposed on and thermally pressure-bonded to a surface of a mold having the concavo-convex pattern, and
- forming a second layer by coating a surface of the first layer with a resin-containing coating liquid containing a resin as a light-transmissive material,
- wherein the optical sheet comprises the first layer having the concavo-convex pattern which reflects light, and the second layer made of the light-transmissive material, and
- wherein the optical sheet is disposed opposite to a light-emitting surface of a light-emitting element.
1 more element
A method for producing an optical sheet, the method comprising:
- forming a concavo-convex pattern in a surface of a support film while a mold having the concavo-convex pattern is being pressure-bonded to the surface of the support film,
- forming a first layer by forming a thin film of a reflective material on the concavo-convex pattern, and
- forming a second layer by coating a surface of the first layer with a resin-containing coating liquid containing a resin as a light-transmissive material,
- wherein the optical sheet comprises the first layer having the concavo-convex pattern which reflects light, and the second layer made of the light-transmissive material, and
- wherein the optical sheet is disposed opposite to a light-emitting surface of a light-emitting element.
2 more elements
Dependencies are inferred from the claim text.