Backlight module with light guide plate with light sources, and liquid crystal display apparatus with such module
US9103955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Jul 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a backlight module and a liquid crystal display apparatus. A light guide plate of the backlight module comprises hollow structures. Each of the hollow structures corresponds to one of the light sources and comprises two air layers with an included angle there-between, and the two air layers are a first hollow layer and a second hollow layer. A normal direction is vertical to the light-incident surface, and there is a first oblique angle between the first hollow layer and the normal direction, and there is a second oblique angle between the second hollow layer and the normal direction, and a depth of the hollow structures satisfies a predetermined equation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.