Please help me understand what engineering problems are currently limiting e-ink displays from reaching sizes let's say comparable to sizes of standard LCD screens.
I originally thought there are business reasons only (that minimum of folks would buy a display with limited colors and slow response times), but after I found out that even e-ink manufacturer builds e-ink wall consisting of 7,4" e-ink displays, I started to believe there must be other limiting reasons, too.
In other words: Is there some problem constructing e-ink matrix let's say 25" with FullHD resolution? (although with limited colors, but still suitable for working with text etc.).