According to Sony, this is the first time this flexible e-paper (left) has been disclosed to the public. But it doesn’t look a lot different from that one we saw in September (right). The main difference seems to be the white balance setting used by the photographer. Sony wouldn’t go into details about the display other than that it uses e-ink and is 13.3″ diagonally.
It’s possible that this one is more flexible, or uses a different substrate, or is the updated Pearl e-ink display, but if you ask me, they’re just showing off the same old thing and pretending it’s new. Usually I leave that to Nintendo, heyooo!