Display device having reduced interference

A method for reducing electromagnetic interference of a display device, the method comprising:

• driving a first gate electrode of a plurality of gate electrodes of the display device with a first gate select signal to select first subpixels of a plurality of subpixels for updating during a first period;
• driving a first common electrode of a plurality of common electrodes with a reference signal during the first period, wherein the first common electrode is proximate the first gate electrode;
• driving a second common electrode of the plurality of common electrodes with a first interference reduction signal during the first period, the first interference reduction signal comprising a polarity opposite a polarity of the first gate select signal;
• driving a multiplexer control trace with a selection signal during a second period;
• and
• driving an interference reduction trace with a second interference reduction signal during the second period, wherein a polarity of the second interference reduction signal differs from a polarity of the selection signal.

A display device comprising:

• a plurality of gate electrodes;
• a plurality of common electrodes;
• a plurality of subpixels coupled to the plurality of gate electrodes;
• selection circuitry configured to:
• drive a first gate electrode of the plurality of gate electrodes with a first gate select signal to select first subpixels of the plurality of subpixels for updating during a first period;
• a selection circuitry control trace coupled to the selection circuitry;
• a first interference reduction trace;
• and
• a display driver coupled to the selection circuitry control trace and configured to:
• drive a first common electrode of the plurality of common electrodes with a reference signal during the first period, wherein the first common electrode is proximate the first gate electrode;
• drive a second common electrode of the plurality of common electrodes with a first interference reduction signal during the first period, the first interference reduction signal comprising a polarity opposite a polarity of the first gate select signal;
• drive the selection circuitry control trace with a control signal during a second period;
• and
• drive the first interference reduction trace with a second interference reduction signal during the second period, wherein a polarity of the second interference reduction signal differs from a polarity of the control signal.

A display device comprising:

• a plurality of gate electrodes;
• a plurality of common electrodes;
• a plurality of subpixels coupled to the plurality of gate electrodes;
• selection circuitry configured to:
• drive a first gate electrode of the plurality of gate electrodes with a first gate select signal to select first subpixels of the plurality of subpixels for updating during a first period;
• a plurality of source electrodes;
• a multiplexer coupled to the plurality of source electrodes;
• a multiplexer control trace coupled to the multiplexer;
• and
• a second first interference reduction trace;
• and
• a display driver configured to:
• drive a first common electrode of the plurality of common electrodes with a reference signal during the first period, wherein the first common electrode is proximate the first gate electrode;
• drive a second common electrode of the plurality of common electrodes with a first interference reduction signal during the first period, the first interference reduction signal comprising a polarity opposite a polarity of the first gate select signal;
• drive the multiplexer control trace with a selection signal during a second period;
• and
• drive the first interference reduction trace with a second interference reduction signal during the second period, wherein a polarity of the second interference reduction signal differs from a polarity of the selection signal.

A display driver for a display device, the display driver comprising:

• control circuitry configured to output a control signal to instruct selection circuitry to drive a first gate electrode of a plurality of gate electrodes of the display device with a first gate select signal to select first subpixels of the display device for updating during a first period;
• and
• display driver circuitry configured to:
• drive a first common electrode of a plurality of common electrodes of the display device with a reference signal during the first period, wherein the first common electrode is proximate the first gate electrode;
• drive a second common electrode of the plurality of common electrodes with a first interference reduction signal during the first period, the first interference reduction signal comprising a polarity opposite a polarity of the first gate select signal;
• drive a selection signal on a multiplexer control trace during a second period to control a multiplexer;
• and
• drive a second interference reduction signal on a first interference reduction trace during the second period.