A few months back I posted a couple photos that showed some details about how an E-ink screen is made. Today I found a behind the scenes video that E-ink shot when they took those photos. This video is actually much more impressive.
Like I said before, the E-ink screen is initially made as a long roll of plastic. The roll is manufactured in E-ink's Massachusetts factory and then shipped to Asia where the screen material is cut to the required sizes (5", 6", 9,7") and then mounted on the backplanes.