Panasonic has a 20-inch tablet prototype with a 4K resolution.
Panasonic's 4K Tablet Could Kill All-in-One PCs : Read more
Panasonic's 4K Tablet Could Kill All-in-One PCs : Read more
This is really getting ridiculous. REDUCE YOUR FRACTIONS! It is a 3:2 aspect ratio.with a 3840 x 2560 (230ppi) resolution and a 15:10 aspect ratio