LGF roll-to-roll manufacturing method and structure thereof
US9279932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2011 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Jul 25, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/155
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A LGF roll-to-roll manufacturing includes the steps of: preparing a first optical layer with a first surface and a second surface; mechanically extruding a first integrated microstructure on the first surface of the first optical layer; subsequently coating a second optical layer on the first or second surface of the first optical layer; and curing the second optical layer to directly form a second microstructure on the first or second surface of the first optical layer. The first integrated microstructure and the second microstructure are separately formed at a time to provide a light guide film structure. In an embodiment, an additional optical layer is provided on the first optical layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.