Aveti aici un articol care va va lamuri complet (sper): HDTV Magazine - LG's Passive-Polarized-Glasses 3DTV - Where is my Pixel?

As you may have concluded after this reading, regardless “which” pixels are displayed “where” on the second 120Hz cycle, LG’s 3DTV still renders an image that has no more than 540 video lines per eye at any given displayed video frame, similarly to other passive 3DTVs, which is half the resolution of 3D Blu-ray and active-shutter 3DTVs per eye.
The approach of the two 120Hz cycles reusing the same TV pixels substantiate that each eye can never see the 1080 lines of the original images simultaneously, but rather see half of the lines first, followed by the other half of the lines in the next cycle using the same TV lines/pixels, inverting the pixels of each line-pair of the incoming images.
Quite frankly, I did not notice the major artifacts I expected to see when “informally” viewing LG’s passive 3DTVs from appropriate distance for a 1080p set, but I did notice the following:
a) Distracting black horizontal lines of the film-patterned-retarder separating eye views (which reminded me of the effect of lenticular screens of rear-projection-CRTs more than a decade ago). The black lines were very noticeable on the white image of the 3D demo introduction, ironically made by LG to promote the TV,
b) The limited vertical and horizontal angle of view, affecting contrast, color, brightness, like most LCDs, and
c) The need for a minimum of 6-feet viewing distance to avoid noticing left/right images separating from each other, rather than merged in a 3D depth illusion.
I have not experienced any of the above with active-shutter 3DTVs. Lab tests would be useful to properly evaluate the actual merits of the second 120Hz cycle technique vs. its theoretical impact to picture quality.