IMO, Point 3 is not really a problem, at least in the e-reader usecase. Even typing isn't too bad when partial refresh is enabled. Something like VIM on a black

IMO, Point 3 is not really a problem, at least in the e-reader usecase. Even typing isn't too bad when partial refresh is enabled. Something like VIM on a black&white panel with kindle-grade refresh options seems quite reasonable. Now then, with the linked screen's 15 second refresh time, this is obviously not the case. But it (naively) seems like a compromise to keep the cost low, since the added tech and software to enable partial refreshes would add to both price and complexity.