Optical component, manufacturing method of the same and backlight module
US7954983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2009 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Nov 25, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an optical component, a manufacturing method of the same and a backlight module including the foregoing optical component. The optical component includes a plurality of microstructures and reflecting members. The microstructure is extended along a first direction and arranged along a second direction on a light exit surface, and a distance between the first curve and the second curve in the second direction is not equal and not parallel, and a distance between the second curve and another first curve in the second direction being not equal and not parallel. Each reflecting member is extended along the first direction and arranged along the second direction on a light entrance surface and the position of each reflecting member is among two microstructures. Each of the reflecting members to the light entrance surface has a thickness t, a length of the microstructure in the second direction is a width P, the optical component has a refractive index n, and t, P and n satisfy a formula of tan−1(P/(10t))>sin−1(1/n). When the design of the optical component satisfies the foregoing formula, it will achieve better optical performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.