Liquid crystal display device
US8358386B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 22, 2010 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Apr 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133613
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a liquid crystal display device including a liquid crystal display panel, and a backlight disposed on the rear surface of the liquid crystal display panel, the backlight is provided with a plurality of white light-emitting diodes arranged in a plane opposing the liquid crystal display panel. Based on a chromaticity coordinate value representing a color of emission identified for each of the white light-emitting diodes, the white light-emitting diodes are selectively combined for arrangement in proximity in such a manner that the color of emission as a result of averaging over the white light-emitting diodes (1a, 1b) to be arranged in proximity takes a predetermined value of chromaticity coordinates. Accordingly, the resulting liquid crystal display device can offer, although using the white light-emitting diodes having the problem of impairing the uniformity of the color of emission, higher-quality display images using a backlight with less non-uniformity of color and light emission as a whole, and prevents the increase of the manufacturing cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.