Dasung has been selling a 13-inch-ish for a while: https://www.amazon.com/Dasung-Paperlike-Front-Light-Touch-Monitor/dp/B07SKS6CS7 https://www.amazon.com/Dasung

Dasung has been selling a 13-inch-ish for a while: https://www.amazon.com/Dasung-Paperlike-Front-Light-Touch-Monitor/dp/B07SKS6CS7 https://www.amazon.com/Dasung-Paperlike-Front-Light-Touch-Mo... But that's still within the "arguably a tablet screen" size range.