Single-panel color image display apparatus
US6913360B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Aug 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A single-panel color image display apparatus realizing a wide color gamut includes a light source, a colored light separator, and a light valve. The colored light separator has four or more dichroic filters of reflective type which separate a light emitted from the light source according to a wavelength. The light valve controls the light that is emitted from the light source and separated by the colored light separator according to color, on a pixel-by-pixel basis according to an input image signal, and forms a color image. By performing color scrolling using a scrolling unit having a spiral array of lens cells, the same resolution as that obtained when using a color wheel can be realized and the same light efficiency as that obtained when using a three-panel color image display apparatus can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.