Other Parts Discussed in Thread: DLPC3437, , DLPC3433, DLP3010, DLPC6401, DLP4500
I'd like to get confirmation that the upscaling function in the 3310 / 3437 chip pair is a purely digital thing. This is what it sounds like from the data sheets, but the forum answers are misleading.
It seems the DMD pixels do not move (shift laterally) on the output image, as that would require they either move on the DMD (via piezo-electric activation or similar) or they are optically shifted (via a moving lens or electro-optically). I have found no evidence in the documentation of any actual-shifting mechanisms. Thus I am led to simply follow what is written in the data sheets, that the 3437 simply processes two image sets that are then sent to an unmoving DMD array (sort of like super-sampling) and then the DMD (running at 2x the frame speed) displays one after the other within a single frame time.
If this is so, then it should be trivial to disable this function and there should also be no risk of additional mechanical or environmental failure based on the fact that there is no additional device in the system (just the 3310 and its support ASICs). Is this correct? I ask because I was speaking with a design house that insisted there was an additional device that performed the shifting action that the 3310 came physically mounted to that was not removable. I need a cold, hard answer on this one. Thanks.
Also, I get that the system can accept a single 1920 x 1080 (full HD) frame and use that to generate two 1280 x 720 (baby HD) sub-frames to simulate full HD on the projected output, or it can accept a single 1280 x 720 frame and upscale it to generate two (digitally) shifted versions of 1280 x 720 frames that end up looking like one 1920 x 1080 frame. Cool beans. But I would warn that the output from the array is NOT 1920 x 1080 as the data sheet (and forum) articulate; the output image remains 1280 x 720 (it just looks more like 1920 x 1080). Please confirm my suspicions. Thanks.