Liquid crystal display (LCD) device capable of performing switching between polarity inversion driving methods without causing deterioration in display quality and driving method for he same

A driving method performed by a liquid crystal display device, the liquid crystal display device including;

• a display portion including:
• a plurality of video signal lines,
• a plurality of scanning signal lines,
• a plurality of pixel electrodes corresponding, respectively, to intersections between the plurality of video signal lines and the plurality of scanning signal lines, and
• a common electrode provided common to the plurality of pixel electrodes,
• a video signal line drive circuit configured to drive the plurality of video signal lines,
• a scanning signal line drive circuit configured to drive the plurality of scanning signal lines, and
• a common electrode drive circuit configured to drive the common electrode, and including:
• an operational amplifier including:
• an inverting input terminal,
• a non-inverting input terminal to which a reference voltage is supplied, the reference voltage being a voltage to be applied to the common electrode, and
• an output terminal connected to the common electrode,
• a first resistor, one end of the first resistor being connected to the inverting input terminal of the operational amplifier, and another end of the first resistor being connected to the output terminal of the operational amplifier, and
• an adjustment circuit including a first terminal to which a feedback voltage of the voltage to be applied to the common electrode is supplied, a second terminal connected to the inverting input terminal of the operational amplifier, and at least one resistor, and
• the driving method comprising:
• determining a drive frequency to be either a first frequency or a second frequency that is lower than the first frequency;
• determining, in accordance with the determined drive frequency, a polarity inversion driving method to be either a one-column inversion driving method in which a polarity of a voltage applied between each of the plurality of pixel electrodes and the common electrode is inverted for every one of the plurality of video signal lines in a direction in which the plurality of scanning signal lines extends, or an N-column inversion driving method in which a polarity of a voltage applied between each of the plurality of pixel electrodes and the common electrode is inverted for every N of the plurality of video signal lines in the direction in which the plurality of scanning signal lines extends, N being an integer having a value of two or more;
• and
• adjusting, in accordance with the determined polarity inversion driving method, a combined resistance value of the first terminal and the second terminal.