Filed under: Cellphones, Handhelds
It's been a while since we've heard anything about Nokia's Haptikos tactile touch screen technology, but with the unearthing of some juicy patent details, we finally know what's going on here. Basically, the tech uses layers under the touchscreen to allow control of surface roughness and friction. The patent describes a "plurality of closely space voltage controllable protruberances" that can raise or lower ba
