Field sequential color liquid crystal display device
US6753936B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | May 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133555
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reflection type color liquid crystal display device includes a liquid crystal cell controlled by a new field sequential method and a reflection device disposed at the rear surface of the cell. The device includes a band-like reflection sheet having reflection regions for reflecting the three-color lights of yellow, magenta and cyan. The reflection sheet is driven by a driving device, whereby the reflection regions are sequentially moved to the reverse side of the liquid crystal cell. In synchronism with the color changes of these reflection regions, the liquid crystal cell is controlled so that its light transmittance may be controlled in the way of color filters controlling the three picture elements of yellow, magenta, and cyan, simultaneously and time-sequentially three times. As a result of this 3-time time-sequential display, the desired color is displayed by the additive color process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.