抄録
We report two key points about development of active-matrix EPD watch. The first point is to improve display response on user operation. We found that it is enough for reading menu or time on the screen to drive at least 90% of saturated white reflectance. The other is how to ensure display quality to drive a part of screen in the long term. We decided to select suitable EP sheet lot to use trough testing reflectance-writing times.
