[DIYbio] useful lab instrument display = e-paper? OLED? touchscreen?

One kind I had hoped for, e-paper, seems too expensive to make a profit from:

http://www.pervasivedisplays.com/products/144
Pricing for 500pcs is $9.45 each, Ex Works Hong Kong

Would bio folks care more for that high contrast, visible from the side at a glance look,
and stays displaying last results indefinitely
vs. OLED high contrast display that is on when power is on, dark otherwise?

Touch screen is not part of these, and has to be layered over them just like cell phone construction,
so touch could be added to any kind of display.

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