US Patent 7750590 Display apparatus having turntable display
Patent 7750590 was granted and assigned to Hitachi on July, 2010 by the United States Patent and Trademark Office.
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A display apparatus includes a base, a display screen part supported on the base turnably, a driving part for turning the display screen part in accordance with an inputted control signal, a turning prevention mechanism for preventing turning of the display screen part, a judgment part for judging on the basis of the inputted control signal whether the display apparatus is operated or not, and a controller for producing a signal for operating the turning prevention mechanism to prevent turning of the display screen part when it is judged that there is no operation to the display screen part and producing a signal for releasing operation of the turning prevention mechanism when it is judged that there is operation to the display screen part.
US Patent 07750590 Display apparatus having turntable display US Patent 7750590 Display apparatus having turntable display
US Patent 07750590 Display apparatus having turntable display
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