Wouldn't the size range 45"-50" be too big and not enough pixels?
Seiki's 39" gives a 112.97 DPi which is a fraction more than a 27" 2560x1440 which is about 109 DPi. Considering a 30" 2650x1600 is only 100.63 DPI. Mind you the 30" Seiki is only 30Hz because of the older HDMI 1.3 but the have confirmed a 60Hz version is coming soon.
There's also the soon to be shown LG 34" UM95 21:9 3440x1440, 109.68 DPi. Vertical height is the same as a 27", if that is suitable.[/QUOTE]
I have an unusual need. I do very large static engineer drawings and I'd like to see as much of them as possible with readable text. For me a large screen with a resolution (in the original sense of the word) of 90 - 100 DPI would be ideal. With a higher resolution the smallest text is too small to read so the additional resolution does me no good.
A 40" 4K would be better than what I have now, but a 50" is better still. I did a cardboard mock-up and I can fit a 50" on my desk. The upper edge (menu) might require some head movement, but I think I can work with that. The potential mouse jump at 30 Hz is an issue and I'm hopping to see something faster in the next 1-2 months.