| 摘要 |
<p>The invention relates to a display device using the DLP (Digital Light Processing) technology. This invention is in the field of digital cinema and content protection, where camcorder acquisition followed by immediate illega l distribution creates important revenue losses for content owners. According to the invention, the addressing of the display device is modified in order to introduce an anti-copy processing. The display device comprises modulation means (500) for modulating the colour or brightness of video data of video pictures received at a first rate and for outputting at a second rate modulated video data, said second rate being a multiple of the first rate, subfield coding means (501) for coding said modulated video data into subfie ld data, said subfield data being delivered at the second rate, and addressing means (502,503) for addressing the array with said subfield data at a third rate. Advantageously, the third rate is not a multiple of the first rate.</S DOAB></p> |
