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by sho_hn 1213 days ago
Your comment made me curious, but after looking at a teardown blog the 13" Dasung Paperlike uses the same ED133UT2 panel by E Ink as in my DIY newspaper project, which is a panel originally released about 2016/2017.

That said getting good partial refresh performance out of a panel like this requires a good controller and good code (after having written a driver for one such controller recently), and developers and product integrators have gotten more refined at this. Refresh speed and display quality are still a trade-off here though, expressed as different waveforms when driving the same display.