Does H-SBS or H-OU matter with 4K TVs Passive 3D
This is my first thread here and I hope I can get an answer to a question that has been bugging me ever since I decided to buy the LG 55UH8500, which is 4K TV with Passive 3D capabilities.
Almost all 3D materials available, that is not in original bluray, come in either Half-Side-By-Side (H-SBS) or Half-Over-Under (H-OU) formats. H-SBS videos have the horizontal resolution halved (960x1080), while H-OU videos have the vertical resolution halved (1920x540). Choosing one format over the other matters with FHD Passive 3D TVs, as, by design, the vertical resolution is halved in order for the TV to display the two images simultaneously. Since the vertical resolution of a H-OU has already been halved, a FHD Passive 3D TV will display a H-OU 3D video as it is. However, if the video is in H-SBS format, the TV further reduces the vertical resolution for an effective resolution of 960x540, which is obviously less than the 1920x540 for H-OU videos. This might give an edge of the perceived picture quality to H-OU videos over H-SBS on FHD Passive 3D TVs.
With 4K Passive 3D TVs, the TV has enough pixels to display either format in its entirety. The question now is: "Will one format look better than the other, assuming everything else is the same ?" As I currently don't own a 4K Passive 3D TV, I am unable to answer the question. I'm currently thinking of something that I'm not sure about. If we display a H-SBS content on a 4K TV, the horizontal resolution gets upscaled by 4. Similarly, if we display a H-OU content on a 4K TV, the vertical resolution gets upscaled by 4. Does it matter what gets upscaled ?