Panasonic today put out a new prototype for a Windows 8 tablet in a 20-inch form factor, complete with an eye-popping 230 ppi 4k display.
CNET editor Scott Stein holds up the 20-inch prototype so you can see how big it is next to a normal human.
There's not much on the back besides some simple brushed metal.
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CNET explains how OLED technology differs from regular TVs, and what you need to know to make the right shopping decision.