It would need a flexible backplane, which has been talked about for years but never seems to actually see the light of day.
See
Older/Canceled Large Devices. The Skiff would have been about the size you want, but it is definitely dead. The Plastic Logic has a 2nd wind, see
Plastic Logic introduces 10.7" reader in Russia and
jetBook Color vs. Plastic Logic. The 9.7" color option seems more likely to have legs than a larger greyscale screen, but both have been somewhat sidelined by iPads and tablets.