Stereoscopic 3D liquid crystal display apparatus with structured light guide surface
US8035771B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Aug 20, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S385/901
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereoscopic 3D liquid crystal display apparatus includes a liquid crystal display panel, a backlight positioned to provide light to the liquid crystal display panel, and a double sided prism film disposed between the liquid crystal display panel and the backlight. The backlight includes a light guide having a first side and a second side opposite the first side, and having a first surface extending between the first and second sides and a second surface opposite the first surface. The first surface substantially re-directs light and the second surface substantially transmits light. A plurality of first light sources is arranged along the first side of the light guide for transmitting light into the light guide from the first side. A plurality of second light sources is arranged along the second side of the light guide for transmitting light into the light guide from the second side. The second surface includes a regular array of linear prism or lenticular features. A double sided prism film is disposed between the liquid crystal display panel and the regular array of linear prism or lenticular features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.