I wasn't to know about, but by reading some comments the "Quaderno Gen 3C" also has a mobius screen, on a color device.
Quote:
The Fujitsu Quaderno A4 sports a 13.3-inch Mobius flexible 1250 panel, featuring a standard resolution of 1650 x 2200. This results in a pixel density of 207 pixels per inch (PPI). The display offers both capacitive touch input and an EMR digitizer, making it compatible with stylus pens.
Its unique feature is that the ink appears to be on the surface of the screen, enhancing the reading and writing experience. The display offers excellent clarity for both text and images, with good contrast and legibility.
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https://borednbookless.com/fujitsu-quaderno-a4-review/
As YT aligns reccomandations, it looks like also the "Sony Digital Paper DPT-RP1 13.3 e-note" uses it.
But, as it was mentioned on the forum, there are no mobius screens larger than 10" within backlight.