I don't think it would ever be done, or would be cost effective, but I wonder if even theoretically the white particles in e-ink could be made to glow. At a simple level, passively by absorbing light and re-emitting it later, which might buy one an hour or so of in-the-dark reading, and would probably increase perceived contrast even in normal lighting. Or at a more complex level, by a trickle charge making a special white-particle material emit light. And I wonder if the latter could work without interfering with the charges required to change the grey scales of cells.
|