Optical flim, optical film assembly using the optical film, and manufacturing method of the optical film
US9239411B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | May 2, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2457/202
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An optical film includes a substrate, several prism bars, and several connecting parts. The substrate comprises a first surface and a second surface opposite to the first surface. The prism bars are disposed on the second surface of the substrate. Each prism bar has a bottom portion and a top portion. The bottom portion of each prism bar is disposed on the second surface of the substrate, and each top portion has an edge. Each connecting part includes a flexible pillar and a connecting enlarged part. Each flexible pillar has a first end and a second end opposite to the first end. The first end of each flexible pillar is disposed on one of the edges. Each connecting enlarged part is disposed on the second end of each flexible pillar. The outer width of each connecting enlarged part is larger than that of the cross-section of each flexible pillar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.