PTC has been awarded "DRIVE CIRCUIT OF DISPLAY AND METHOD FOR CALIBRATING BRIGHTNESS OF DISPLAY" in USA.
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PTC has been awarded "ELECTROSTATIC DISCHARGE PROTECTION DEVICE" in USA.
PTC has been awarded "Controlling Circuit for Analog Measurement Module and Controlling Module thereof" in ROC.
PTC has been awarded "Adjustable voltage comparing circuit and adjustable voltage examining device" in ROC.