Haier Inc exhibited a large-screen 3D TV that features a wireless power transmission technology and does not have a power plug at the 2012 International CES, which runs from Jan 10 to 13, 2012, in Las Vegas, the US.
In 2010, Haier showed a prototype of a 32-inch TV capable of being wirelessly powered. And, this time, it prototyped the TV by using a 55-inch LCD panel. The company is not planning to commercialize the TV at this point.
Haier calls the latest prototype "Completely Wireless TV" because not only electricity but video signals are wirelessly transmitted to the TV. The video signals are transmitted by using the WHDI (Wireless Home Digital Interface), a high-speed wireless transmission standard for high-definition video.
As a wireless power transmission technology, Haier used the magnetic resonance method. At the trade show, Toshiba Corp exhibited a tablet computer developed based on the method.
This time, a power-receiving coil was located near the bottom of the TV while a power-transmitting device was stored in the box on which the TV was placed. The distance between the bottom side of the TV and the power-transmitting device was about eight inches (about 20cm), Haier said.