LCD device with plural fluorescent tube backlight for a rectangular curved display surface of a radius of from two to four times as large as the length of the short-side of the rectangular display region
US7847912B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 2, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jan 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133608
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display panel includes a TFT substrate and a color filter substrate respectively formed of a glass substrate. By housing the liquid crystal display panel in the inside of a frame having a curved surface, a predetermined curved surface is imparted to a display screen. Using a direct backlight having a plurality of fluorescent lamps, distances between the respective fluorescent lamps and the liquid crystal display panel are set to a fixed value. A diffusion plate has a curved surface substantially equal to the display screen. By mounting respective optical sheets on the diffusion plate, predetermined curved surfaces are imparted to the respective optical sheets. Due to such constitution, it is possible to realize a liquid crystal display device having a curved surface without using a complicated optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.