Non-spectacled stereoscopic display apparatus capable of improving optical characteristics
US8847854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2013 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Mar 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A non-spectacled stereoscopic display apparatus includes a light guide plate, first and second light sources, a single-face prism sheet, a transmissive display panel, a synchronous drive circuit adapted to synchronize the first and second light sources to display parallax images on the transmissive display panel, a phase difference plate, and an optically-modulating structure adapted to receive light emitted from the phase difference plate. The optically-modulating structure includes first and second transparent substrates, a prism array provided on the first transparent substrate, a first transparent electrode layer, a second transparent electrode layer, a liquid crystal layer, and first and second alignment layers for performing an aligning process upon liquid crystal molecules of the liquid crystal layer. The phase difference plate is adapted to rotate a main polarization angle of the single-face prism sheet by a predetermined angle to coincide with an aligning direction of the liquid crystal layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.