Liquid crystal display and backlight module thereof
US8482699B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2010 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module includes an LGP and a linear light source. The LGP includes a light-incident side surface and a top light-emitting surface that has a peripheral region and an effective illumination region. The linear light source includes a circuit board, solid-state light-emitting devices configured on and electrically connected to the circuit board, and a reflector covering a portion of the peripheral region. Light emitted from each solid-state light-emitting device enters the LGP from the light-incident side surface. The reflector includes first reflection parts that correspond to the solid-state light-emitting devices and second reflection parts. Each second reflection part is connected to two adjacent first reflection parts. Each first reflection part and each second reflection part extend towards the effective illumination region from an edge of the top light-emitting surface. An extension length of each first reflection part is shorter than that of each second reflection part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.