How FLEx film works (via FLEx)
Chicago based company FLEx brings front illumination to dark screens via a thin film. E-readers, rather e-ink displays, is in their crosshairs for wide adoption. They saw a need and filled it.
Similar to edge lighting seen on most illuminated displays, however their system requires fewer LEDs that any competing tech (40% less by FLEx's estimation). The power demand then scales accordingly. The key to the FLEx tech is the light scattering film. The film can be applied to an LCD, helps create more vivid colors, is flexible, invisible when off, compatible with touch screens, and ranges from 0.5mm to 0.05mm (50 microns). Frames and bezels cover current edge lighting hot spots, my phone comes to mind with a very bright corner. The FLEx film can be edgeless. A bezeless future awaits. (FLEx film can also be used for backlighting applications, for those who are wondering.)
Adoption of FLEx tech in inevitable, but what about current dark screens. I would like to see kits to add the film to dark E-readers. (Selfishly; my Kindle should be the first platform to receive a kit.)