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  • Hewlett-Packard has become an innovative force in the HDTV world, taking a popular rear-projection television technology--digital light processing DLP--and increasing its resolution using "wobulation," a technique inspired by HP's inkjet printers.

    Coolest HDTVs Cheap HDTV Sceptre X32SV-NAGAII... 2006

  • But HP's wobulation technique effectively doubles the lines of resolution from the same chip by projecting two overlapping, independent images using the same number of mirrors--much the way overlapping droplets of ink are released onto a printed page by inkjet printers to increase resolution.

    Coolest HDTVs Cheap HDTV Sceptre X32SV-NAGAII... 2006

  • The cool thing is this technology easily dovetails into a 3D stereoscopic application except for one seemingly un-cool fact; the wobulation mirror does not run at 240 Hz which is required to provide full 1920x1080 resolution to each eye.

    HDTV Magazine 2010

  • DLP rear projection displays were, and for Mitsubishi continue to be, wobulated DLP displays (the mirror wobulation is a Hewlett Packard invention).

    HDTV Magazine 2010

  • That means the DMD chip is half resolution, 960x540, and a wobulation mirror runs at 120 Hz.creating a full 1920x1080 response at 60 Hz. This reduces the cost of DLP product and appears to have been solely used for rear projection applications (there has never been a full

    HDTV Magazine 2010


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  • At a high level, wobulation is sort of like interlaced video because it relies upon the persistence of vision, meaning you see something longer than it's actually in front of you, especially when images are changing very rapidly, like every 1/60 of a second. A DLP chip with wobulation uses another mirror that moves even faster(once every 1/120 of a second, or faster) to re-aim the pixels from individual mirrors on the DLP chipset.

    --Danny Briere and Pat Hurley, 2007, HDTV for Dummies, p. 267

    July 17, 2010