Backlight system and liquid crystal display device using the same
US8922735B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 2, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | May 5, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight system includes: a light-emitting section (1) having a plurality of light sources that emit beams of light at different dominant wavelengths from one another; and an imaging optical system (3) including a plurality of microlenses (3a) that focus beams of light emitted from the light-emitting section (1), the backlight system irradiating a liquid crystal panel with beams of light having passed through the imaging optical system (3), the liquid crystal panel including a plurality of pixels arrayed at a predetermined pitch from each other, on the assumption that the pitch at which the pixels are arrayed is denoted as P and the imaging optical system (3) has an imaging magnification of (1/n), the light sources (1) being arrayed at a pitch (P1) given as P1=n×P, the microlenses (3a) being arrayed at a pitch (P2) given as P2=(n/(n+1))×P.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.