The Screen
Why it flashes
The image is made of microscopic black and white particles suspended in fluid. To change what's on screen, the display has to move those particles into new positions — and to do it cleanly, it first drives them all the way to black and all the way to white.
That's the flash you see. It takes about two seconds and it's the screen clearing itself properly before drawing the next thing.
Refresh modes
The device offers two, in its own settings.
Fast — a 1.5 second refresh when you move between sections, and quicker partial updates (0,6 seconds) while you're inside one. Less flashing, faster to work with.
Full — a two second full refresh on every page change. Slower, but the image comes out cleaner with less ghosting.
Fast suits most days. Full is worth switching to in the cold, where e-paper transitions more slowly and partial updates leave more behind.
Ghosting
After a refresh, a faint trace of the previous content can stay visible. It's subtle and clears on the next full refresh. Switching to Full refresh reduces it.
Cold and heat
E-paper is sensitive to temperature. In the cold the particles move more slowly, so transitions take longer and ghosting is more noticeable — this is where Full refresh earns its extra second. Extreme heat slows it too.
Both resolve as the device returns to a normal working temperature.
Direct sun
Left in strong direct sunlight for a long stretch — which, mounted on a camera, happens — the screen can take on a faint yellow cast. It returns to normal shortly after it comes out of the sun. The UV filter in the glass is there to keep that from becoming permanent.
Capitals
The device typeface is drawn in capitals only. That's deliberate. Your notes and crew names keep their original case in the app.
Cleaning it
A dry microfibre cloth. If something needs more, barely dampen the cloth with water. No solvents, no alcohol, no screen sprays.
