Electrowetting technology sandwiches the display media between a top and bottom layer of glass,
while electrophoretic technology simply uses a polymer layer on top.
While electrophoretic ink is fine for reading in situations where you have bright light — outdoors during the day, or with a reading lamp — it's much less usable in low - light environments.
Not exact matches
The road to a viable
electrophoretic display (EPD for short) that would show vivid, bright colors
while still retaining the extreme energy efficiency of electronic paper has been a winding one.