Optical film and display device having the same
US9121999B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 30, 2013 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133524
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical film and a display device having the same are provided. The optical film has a light input face, a light output face opposite to the light input face, and a light-output structure disposed on the light output face. The light-output structure includes a plurality of light output microstructures such as prisms disposed side by side along a first direction on the light output face. Each prism has a first quadrilateral cross section parallel to the first direction. A first side of the quadrilateral cross section is connected to the light output face and includes a first angle with the light output face, wherein the first angles of the prisms continuously arranged have angle values varying in a periodic manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.