hubert wrote:The 4K display needs huge bandwidth. Let us say we have 4096 x 4096 resolution and we need 24 bit display. At 60 Hz refresh rate the bandwidth requirement is
Bandwidth = 4096 x 4096 x 24 x 60 bits per seconds = 24.159191 Giga bits per seconds
What kind of interfaces support this high bandwidth ?
If we keep vertical resolution lower, at around 2000, we still have bandwidth requirements in excess of 10 Gb/s
I was just reading another place that was selling HDMI Cable. It says
4K - The 4K resolution is 3840 x 2160 pixels @ 24 Hz, and this is 4x that of a 1080p display and the same resolution used by state-of-the-art Digital Cinema systems. A High Speed HDMI Cable is capable of handling the high bandwidth required for 4K support.
Now at this gives a bandwidth of
3840 x 2160 x 24 x 24 = 4777574400 bits per second or 4.777 Gigabits per second - well this is within the reach of HDMI cable.
Notice the alternate lower resolution for the 4K and the lower 24 frame per second ( in place of 60 fps). I think we need higher transfer rate than the one supported by HDMI.