Brightness enhancement film having a reinforcing structure
AssigneeEfun Technology Co., Ltd.
InventorShih-Chieh Tang
Life of this patent
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Abstract
A brightness enhancement film includes a light-refracting microstructure layer, a substrate and a reinforcing layer. The substrate has a first surface and a second surface opposite thereto. The light-refracting microstructure layer is arranged on the first surface of the substrate and is so configured to vary in curvatures for refracting light. The reinforcing layer is arranged on the second surface of the substrate and is so configured to form a relatively high degree of hardness. Accordingly, the reinforcing layer can prevent warpage and abrasion of the brightness enhancement film.
Claims28
A brightness enhancement film having a reinforcing structure comprising:
- a substrate having a first surface and a second surface, the substrate made from a first transparent material which permits penetrating light through the substrate;
- a light-refracting microstructure layer arranged on the first surface of the substrate, the light-refracting microstructure layer providing changes in curvature so as to refract the light penetrated through the substrate;
- and
- a reinforcing layer made from a second transparent material, the reinforcing layer covering the second surface of the substrate so as to reinforce the brightness enhancement film;
- wherein the second transparent material of the reinforcing layer has a rate of shrinkage substantially approximate to that of the substrate.
A brightness enhancement film having a reinforcing structure, comprising:
- a substrate having a first surface and a second surface, the substrate made from a first transparent material which permits penetrating light through the substrate;
- a light-refracting microstructure layer arranged on the first surface of the substrate, the light-refracting microstructure layer providing changes in curvature so as to refract the light penetrated through the substrate;
- and
- a reinforcing layer made from a second transparent material, the reinforcing layer covering the second surface of the substrate so as to reinforce the brightness enhancement film;
- wherein the first transparent material has a first refractive index and the second transparent material has a second refractive index, the first refractive index being greater than the second refractive index.
A brightness enhancement film having a reinforcing structure, comprising:
- a substrate having a first surface and a second surface, the substrate made from a first transparent material which permits penetrating light through the substrate;
- a light-refracting microstructure layer arranged on the first surface of the substrate, the light-refracting microstructure layer providing changes in curvature so as to refract the light penetrated through the substrate;
- and
- a reinforcing layer made from a second transparent material, the reinforcing layer covering the second surface of the substrate so as to reinforce the brightness enhancement film;
- wherein the reinforcing layer has a thickness ranging between 5 μm and 10 μm.
A brightness enhancement film having a reinforcing structure, comprising:
- a substrate having a first surface and a second surface, the substrate made from a first transparent material which permits penetrating light through the substrate;
- a light-refracting microstructure layer arranged on the first surface of the substrate, the light-refracting microstructure layer providing changes in curvature so as to refract the light penetrated through the substrate;
- and
- a reinforcing layer made from a second transparent material, the reinforcing layer covering the second surface of the substrate so as to reinforce the brightness enhancement film;
- wherein the reinforcing layer covers the second surface of the substrate to form a composite reinforced laminate by adhesive.
A brightness enhancement film having a reinforcing structure, comprising:
- a substrate having a first surface and a second surface, the substrate made from a first transparent material which permits penetrating light through the substrate;
- a light-refracting microstructure layer arranged on the first surface of the substrate, the light-refracting microstructure layer providing changes in curvature so as to refract the light penetrated through the substrate;
- and
- a reinforcing layer made from a second transparent material, the reinforcing layer covering the second surface of the substrate so as to reinforce the brightness enhancement film;
- wherein the reinforcing layer covers the second surface of the substrate to form a composite reinforced laminate by physical vapor deposition or sputtering deposition.
Dependencies are inferred from the claim text.