Compound optical film
US9170352B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Jul 24, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Dec 24, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0075
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A compound optical film includes an unitary two-layer structure with of a light guide layer and a light reflective layer attached on the light guide layer. A number of light scattering particles are dispersed in the light guide layer adjacent to an interface between the light guide layer and the light reflective layer. The compound optical film can reduce the thickness of backlight module while the compound optical film is used in backlight module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.