Stereoscopic display
US6703989B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2000 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0077
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereoscopic display comprises a spatial light modulator such as a liquid cryatal device. The modulator comprises an array of pixels such as RGB pixels. A retarder array is disposed on the front of the spatial light modulator. The array comprises first stripes and second stripes which extend vertically and alternate which each other horizontally. The first and second stripes supply light from the modulator to an observer with different, preferably orthogonal, polarizations. Each of the stripes has a width which is greater than the horizontal pitch of the pixels. In a preferred embodiment, a lenticular screen is disposed in front of the retarder array. The lenticules extend vertically and are spaced horizontally with a pitch which is substantially equal to the pitch of the pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.