Backlight unit and liquid crystal display device having the same
US7465073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2005 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Apr 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133609
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight unit of an LCD device is provided. The backlight unit includes a light emitting unit, a light guide plate, a reflection plate and a light scattering unit. The light emitting unit has a passive light emission lamp that generates green light and a self-light emission lamp that generates red and blue light. The light guide plate is disposed between the passive light emission lamp and the self-light emission lamp. The light guide plate mixes the red and blue light emitted from the self-light emission type lamp and guides the mixed light to an upper side thereof. The reflection plate is disposed below the self-light emission lamp. In addition, the light scattering unit is disposed above the passive light emission type lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.