Display apparatus which displays the first image and the synthesized image with circular polarizations having different senses of rotation from each other
US8690335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2009 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transmitter that outputs an image signal for displaying a first image and outputs an image signal of a synthesized image made of the reversal image of the first image and a second image. A display apparatus, based on the image signals output from the transmitter, displays the first image and the synthesized image with circular polarizations having different senses of rotation from each other. A receiver includes a circular polarization selecting and transmitting means that separates the first image and the synthesized image displayed on the display apparatus, based on the sense of rotation of the circular polarization, and selectively allows the images to pass therethrough, so as to be able to photograph the first image displayed on the display apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.