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US 7,744,263 B2Granted
Structured optical film
AssigneeMicrosharp Corporation Limited
InventorDavid John Bottomley
Life of this patent
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AssigneeMicrosharp Corporation Limited
InventorDavid John Bottomley
Estimating the term…
Disclosed are structured optical films and optical displays incorporating such films. The film has a structured surface including a plurality of substantially parallel and elongate light-directing elements. Each element has a respective peak and defining at a junction with an adjacent element a respective valley. Each of the peaks and valleys define substantially the same dihedral angle and extend substantially uninterrupted across the structured surface. A first sequence defined by successive lateral distances between adjacent peaks is a first non-periodic sequence. A second sequence defined by successive lateral distances between adjacent valleys is a second non-periodic sequence. The second sequence is configured based on the first sequence, such that the peaks are arranged in a substantially coplanar formation. Alternatively, the first sequence is configured based on the second sequence, such that the valleys are arranged in a substantially coplanar formation.
A structured optical film having a structured surface extending longitudinally between a first end and a second end and laterally between a first side face and a second side face, the structured surface comprising a plurality of substantially parallel and elongate light-directing elements, each element having a respective peak and defining at a junction with an adjacent element a respective valley, each of the peaks and valleys defining substantially the same dihedral angle and extending substantially uninterrupted across the structured surface between the first and second ends, wherein a first sequence defined by successive lateral distances between adjacent peaks from the first side face to the second side face is a first non-periodic sequence and a second sequence defined by successive lateral distances between adjacent valleys from the first side face to the second side face is a second non-periodic sequence, the second sequence being configured based on the first sequence, such that the peaks are arranged in a substantially coplanar formation and the valleys are arranged in a substantially non-coplanar formation.
A structured optical film having a structured surface extending longitudinally between a first end and a second end and laterally between a first side face and a second side face, the structured surface comprising a plurality of substantially parallel and elongate light-directing elements, each element having a respective peak and defining at a junction with an adjacent element a respective valley, each of the peaks and valleys defining substantially the same dihedral angle and extending substantially uninterrupted across the structured surface between the first and second ends, wherein a first sequence defined by successive lateral distances between adjacent peaks from the first side face to the second side face is a first non-periodic sequence and a second sequence defined by successive lateral distances between adjacent valleys from the first side face to the second side face is a second non-periodic sequence, the first sequence being configured based on the second sequence, such that the valleys are arranged in a substantially coplanar formation and the peaks are arranged in a substantially non-coplanar formation.
Dependencies are inferred from the claim text.