Structured optical film
US7744263B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2005 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Feb 18, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.