HP Unveils HD TV line
[Update: more details at DesignTechnica and engadget]
HP is introducing some more HDTVs with wobulation technology. Wobulation is the technique by which the image is painted in stages - in each stage the image is shifted slightly and a different part is painted. This allows a 1024×768 DLP, for example, give a perceived resolution of 2048×1536, if using 2X wobulation. This is a new technology, and if I remember correctly this is how TI is getting 1920 x 1080 resolution out of their upcoming DLP chips. The jury is still out of the effectiveness of this technology, but if it works well, that’s good news.
HP’s new TV’s also adjust the image to the room’s ambient lighting and uses a 3D color enrichment system. I’m not so sure I like the sound of that. Typically, such add-on tachnologies (like scan velocity modulation) try to make the image seem better at the expense of true image fidelity.
HP also announced HD entertainment centers (maybe they mean Media Center PCs?) that allow 55 hours of HD recording.
Link: News.com - HP unveils high-definition TV line
Link: techsmec.com - HP Unveils New TVs and Media Centers
Check out our new sister blog on Home Theater, HTBlog.net
April 29th, 2005 at 3:14 pm
I just read the Wobulation link and the idea sounds very interesting. I just wonder though, whether users of this projector will have to calibrate the projector with the distance to the screen. Since the pixel on the DLP chip is still in the same position but just reflects light in another direction, then the farther the screen is from the projector, the farther the ‘wobled’ pixels would be separated on the screen, no?
April 29th, 2005 at 10:04 pm
True, but you could say the same thing about a non-wobulated (!) display. The better the fill factor, the closer you can be to the screen without seeing any screen-door effect.