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POWER SUPPLY DEVICE AND DRIVING METHOD THEREOF

  • US 20110241435A1
  • Filed: 03/24/2011
  • Published: 10/06/2011
  • Est. Priority Date: 03/31/2010
  • Status: Active Grant
First Claim
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1. A power supply device comprising:

  • an antenna sheet provided with a plurality of cells arranged in a matrix, each of the cells comprises one terminal of an antenna is connected to one terminal of a transistor;

    a high-frequency wave supply circuit connected to the other terminal of the transistor;

    a potential detecting circuit connected to the other terminal of the antenna; and

    a switch control circuit transmitting a signal to a control terminal of the transistor,wherein a channel formation region of the transistor comprises an oxide semiconductor.

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