SungkyunkwanUniversity
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Graphene rolled out in 30-inch sheets, makes for one durable touchscreen (video)
Whether they're slated to power terahertz chips or transparent electrodes, graphene sheets have garnered tremendous excitement, but the scientific community has had great trouble making the single-atom-thick pencil lead lattices large enough for industrial use. Thankfully, the same South Korean scientists who brought us 10 centimeter film never abandoned their post, and now Sungkyunkwan University has composited 30-inch sheets of the stuff and prototyped a working touchscreen panel as well. Using a modified version of the popular chemical vapor disposition deposition (CVD) technique that grows the graphene on top of copper foil, they were able to produce a four-ply graphene stack with 90 percent transparency, plus resistance and durability reportedly superior to the dwindling indium supplies currently used in displays. Now let's see some 300mm wafers, eh? Watch one of the world's first graphene digitizers make its video debut after the break.
Researchers show off flexible, band-aid-sized tactile display
We've seen tactile displays of all shapes and sizes, but none quite like this latest creation from a group of researchers at Korea's Sungkyunkwan University and the University of Nevada, which promises to be at your disposal whenever you need it. That's possible thanks to the electroactive polymer material the display is based on, which consists of eight layers of tiny actuator films that have been sprayed with electrodes in a specific pattern, allowing the skin to be stimulated without any additional electromechanical transmission. In addition to making it possible to wrap the display around your finger like a band-aid, that also makes the system extremely power efficient and, apparently, cost effective and easy to manufacture. As with other tactile displays, the researchers say this one could be especially useful as a braille display for the blind, although they don't see any shortage of other potential applications, with them foreseeing it being used in everything from virtual keyboards to tele-surgical gloves.
