Originally Posted by bix26
Another part at play here is 3D. I think there must be some issue with implementing 3D on the .66 chip, we would have seen one by now. So the trade off is not only cost it seems. I’m speculating that TI developed this .47 dmd knowing it might be a barrier for some consumers. I doubt it’s that much more expensive to make lenses for the .66 XPR dmd’s than the lenses for the .70 1080p dmd projectors. I’m sure TI charges much more for the .66 though. I have a feeling that the .47 costs less itself and reduces sharpness and contrast forcing manufacturers to charge less.
It’s simply about resolution of the micromirror display. The .66 DMD has a ‘native’ resolution of 2716 x 1528 which is unconventional when not being shifted to 4K. The Full HD 3D image doesn’t ‘fit’ well in that resolution. The .47 DMD, on the other hand, has a ‘native’ resolution of 1920 x1080p. Good ole Full HD. That means that it can do full HD 3D with zero effort.
I’m quite sure the .66 is capable of displaying 3D but some upscaling would have to take place and if done poorly could introduce artifacts. No manufacturer wants to spend the money or devote the resources to this considering 3D is essentially dead at this point. The .47 gets 3D because it’s cheap and easy to implement.
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