By Evan Ackerman
Active Inc., an optical component manufacturer, is working on a transparent liquid crystal optical film as a replacement for backlit LCDs. Based on the scanty information available, it seems to work just like traditional liquid crystal displays, which are transparent until you run a current through them, at which point all the crystals in the liquid align and become opaque. I guess the difference here is that the screen is backlit by ambient light, which is a neat idea with questionable consumer practicality.
VIA [ Newlaunches ]
This is practical! You’re just thinking of monitors and tvs. Think about handheld devices like measurement tools where you want to see what you are measuring and the like.