Film, backlight displays, and methods for making the same
First Claim
1. A film, comprising:
- a surface comprising a plurality of prism structures, wherein each prism structure has a lateral modulation in a w direction of ±
2% to ±
20% of an average pitch of the prism structures;
wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous; and
wherein with a highest prism peak height is periodic at an interval measured in the w direction of greater than or equal to five times an average pitch, wherein the average pitch is determined over a sample length in the w direction of 100 mm, wherein the interval w direction is perpendicular to the l direction.
3 Assignments
0 Petitions
Accused Products
Abstract
In one embodiment a film can comprises a surface comprising a plurality of prism structures. Each prism structure has a lateral modulation in the w direction of less than or equal to ±20% of an average pitch of the prism structures. The plurality of prism structures can have a variation in the w direction of prism peak height that is discrete and/or continuous. In one embodiment, a method for making a film can comprise forming a plurality of prism structures on a surface. The plurality of prism structures can have a lateral modulation in the w direction of less than or equal to ±20% of an average pitch of the prism structures, and wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous.
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Citations
15 Claims
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1. A film, comprising:
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a surface comprising a plurality of prism structures, wherein each prism structure has a lateral modulation in a w direction of ±
2% to ±
20% of an average pitch of the prism structures;wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous; and wherein with a highest prism peak height is periodic at an interval measured in the w direction of greater than or equal to five times an average pitch, wherein the average pitch is determined over a sample length in the w direction of 100 mm, wherein the interval w direction is perpendicular to the l direction. - View Dependent Claims (2, 3, 4)
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5. A film, comprising:
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a surface comprising a plurality of prism structures, wherein each prism structure has a lateral modulation in a w direction of ±
2% to ±
20% of an average pitch of the prism structures;wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous; wherein the modulation is ±
2% to ±
15% of the average pitch wherein the average pitch is determined over a sample length in the w direction of 100 mm, wherein the interval w direction is perpendicular to the l direction. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A film, comprising:
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a surface comprising a plurality of prism structures; wherein each prism structure has a lateral modulation in the w direction of ±
2% to ±
15% of an average pitch of the prisms;wherein the plurality of prism structures has a variation in the w direction of prism peak height that is discrete and/or continuous; and wherein with a highest prism peak height is sinusoidal and periodic at an interval measured in the w direction of greater than or equal to five times an average pitch, wherein the average pitch is determined over a sample length in the w direction of 100 mm, wherein the interval w direction is perpendicular to the l direction.
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14. A film, comprising:
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a surface comprising a plurality of prism structures, wherein each prism structure has a lateral modulation in a w direction of ±
2% to ±
20% of an average pitch of the prism structures;wherein the plurality of prism structures have a variation in the w direction of prism peak height that is discrete and/or continuous; wherein there is a cluster of peaks, as determined in the w direction, wherein the cluster contains less than or equal to 3 peaks, and wherein the cluster is a group of adjacent peaks with a height within 0.25 micrometers of a highest prism peak height; and wherein the cluster is separated by greater than or equal to 8 lower peaks. - View Dependent Claims (15)
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Specification