Autostereoscopic display device
US8648792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2008 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | May 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/349
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-view autostereoscopic display device comprises: a backlight having a plurality of backlight areas arranged in a width direction of the display device; a spatial light modulator arranged over and in registration with the backlight, the spatial light modulator having an array of display forming elements arranged in rows and columns for modulating light received from the backlight; and a view forming layer arranged over and in registration with the spatial light modulator, the view forming layer having a plurality of view forming elements arranged in the width direction of the display device, each view forming element being configured to focus modulated light from adjacent groups of the display forming elements into a plurality of views for projection towards a user in different directions. The backlight is switchable to activate different ones of the backlight areas in different portions of a driving cycle of the display device so that, in the different portions of the driving cycle, modulated light from the active backlight areas is incident on each view forming element with respective different angles of incidence. In this way, the overall viewing angle or the effective thr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.