LIGHT DIRECTING LAMINATE
First Claim
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1. A light management film package comprising:
- a first optical film having a first major structured surface with a plurality of tall structures separated by short structures and a second major surface opposite the first major structured surface, each tall structure and each short structure having a top and a height measured from the top to a first common reference plane, wherein the height of each short structure is less than the height of each tall structure, and wherein the tops of neighboring tall structures are separated by a distance of between about 50 and about 150 microns; and
a second optical film having a first major surface and a second major surface opposite the first major surface, the second major surface disposed adjacent to and making contact with the first major structured surface of the first optical film via an adhesive layer, wherein each tall structure of the first optical film penetrates the adhesive layer and the short structures of the first optical film do not penetrate the adhesive layer.
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Abstract
A light management film package includes a first optical film having a structured surface and a second major surface, a second optical film having a first major surface and a second major surface disposed adjacent to and making contact with the structured surface of the first optical film via an adhesive layer. The structured surface of the first optical film includes a plurality of tall structures separated by short structures with the tops of neighboring tall structures separated by a distance of between about 50 and about 150 microns. The tall structures of the first optical film penetrate the adhesive layer, but the short structures do not.
43 Citations
43 Claims
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1. A light management film package comprising:
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a first optical film having a first major structured surface with a plurality of tall structures separated by short structures and a second major surface opposite the first major structured surface, each tall structure and each short structure having a top and a height measured from the top to a first common reference plane, wherein the height of each short structure is less than the height of each tall structure, and wherein the tops of neighboring tall structures are separated by a distance of between about 50 and about 150 microns; and a second optical film having a first major surface and a second major surface opposite the first major surface, the second major surface disposed adjacent to and making contact with the first major structured surface of the first optical film via an adhesive layer, wherein each tall structure of the first optical film penetrates the adhesive layer and the short structures of the first optical film do not penetrate the adhesive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A laminated film package comprising:
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a first light directing film comprising; a first smooth surface; a first structured surface opposite the first smooth surface and having an array of tall prisms separated by short prisms; a first common reference plane disposed between the first smooth surface and the first structured surface without passing through the array of tall prisms and short prisms, wherein each prism has a top and a height measured from the top to the first common reference plane, wherein the height of each tall prism is greater than the height of each short prism, and wherein a distance between the tops of each neighboring tall prisms is between about 50 and about 150 microns; a second light directing film comprising; a second smooth surface; a second structured surface opposite the second smooth surface and having an array of prisms; a second common reference plane disposed between the second smooth surface and the second structured surface without passing through the array of prisms, wherein each prism has a top and a height measured from the top to the second common reference plane; and an adhesive layer disposed between the first structured surface of the first light directing film and the second smooth surface of the second light directing film, wherein the tall but not the short prisms of the first light directing film penetrate the adhesive layer. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A light management film package comprising:
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a first light directing film comprising; a substrate having a thickness of less than about 50 microns; and a structured surface overlying the substrate, the structured surface having a plurality of tall structures separated by short structures; a common reference plane disposed between the substrate and the structured surface, wherein each structure has a top and a height measured from the top to the common reference plane, and wherein the height of each tall structure is greater than the height of each short structure; a second light directing film comprising; a first major surface; and a second major surface opposite the first major surface; and an adhesive layer disposed between the structured surface of the first light directing film and the second major surface of the second light directing film, wherein the tall but not the short structures of the first light directing film penetrate the adhesive layer. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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Specification