If you go look at Apple Retail Stores with
big panes of glass, you'll notice frosted stickers / stenciling that hopefully make them easier to distinguish from empty space.
Not exact matches
The
big advantage
of this new color e-paper is that it is available as a single
pane of glass.
It's already enough that Samsung, the world's
biggest smartphone manufacturer, already plasters
panes of glass together for its smartphones.