Originally Posted by elemenoP
See that layer that says clear fluid? Why not make that the light source? And the white pigment capsules transparent.
OH DARN, I just gave away my idea without patenting it first! Let's keep it our secret, okay?
Wouldn't work. That layer is in between the pigments. the visible pigment would block the light. If you made the white capsules clear then the black would be always visible. You'd have to have the light on in order to see any variation in contrast, and it would still be like printing black on charcoal.