From United States University of Illinois, champagne, led by Professor John Rogers, an international joint research group has recently developed an ultra-thin light-emitting diode (LED).
This kind of light-emitting diodes is grid, 100 Micron square, only 2.5 Micron thickness, far less than the current market of any light-emitting diode array. The LED has a good waterproof properties and biocompatibility, can be used for medical, sensor manufacturing etc, subcutaneous implantation of diagnostic instruments, surgical gloves, suture, and smart feed delivery system, etc.Currently existing LED manufacturing techniques, mainly through a semiconductor chip packaging in epoxy resin.
John Rogers said, researchers developed a new type of "printed" technology: LED by similar to computer chips in production technology, semiconductor chip is printed on a glass substrate and then transfer it into a previously prepared substrate for subsequent production. This ultra-thin light-emitting diode in the substrate compatibility on extremely flexible, including foil, rubber, various materials can be applied.Researchers also use this new technology, made into an image called "detector" (photodetectors) of photosensitive sensor, it can light reflection between the objects.
Researchers said, the combination of micro-sensor and LED, this kind of technology will contribute to the development of robots.Researchers say that you can use this technique can also produce an optical-based proximity sensor, and wrapped in home sweep the robot, its location and distance sensing capabilities will be more powerful, more precision is high, this is the traditional rigid LED the incomparable.
Current home sweep the robot is installed in it by virtue of the photographic sensors to avoid the walls, stairs, furniture and other objects, so even put it in the table above it won't fall off.
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