A 168 by 384 E-Paper Screen Changes the UI Grammar
Portrait monochrome e-paper rewards stable hierarchy and punishes unnecessary redraws.
e-paper
E-Paper UI Design Forced Me to Treat Refreshes as a Resource
A slow monochrome display changes interaction design: information hierarchy matters more than animation.
Partial Refresh Is a Product Resource
A UI transition has a display cost, so redraw scope becomes part of firmware design.
Incoming Call UI Has a Hard Timing Requirement Even on E-Paper
The user must see caller identity before deciding whether to answer, despite slow display behavior.