Question: what is the difference between uhd and quhd?
Answer: There is no space for UHD. QUHD (7680 x 4320) would take up the bandwidth of sixteen HD channels ! ! For the time being, UHD will be limited to UHD Blu-ray movie discs, which are becoming available (they are marketed as “4K”, but they are 3840 x 2160, not 4096 x 2160).