Signal driving method, signal driving apparatus and touch control chip

A signal driving apparatus, comprising:

• a signal driving module, configured to:
• in a first signal driving period, apply non-inverting drive signals to M adjacent detection electrodes and apply inverting drive signals to N adjacent detection electrodes, wherein M+N≤P;
• and
• in a second signal driving period, apply non-inverting drive signals to K adjacent detection electrodes and apply inverting drive signals to L adjacent detection electrodes, wherein K+L≤P;
• wherein:
• one signal driving cycle comprises at least two signal driving periods in which drive signals are applied to P detection electrodes;
• non-inverting drive signals are applied to at least one of the P detection electrodes in two signal driving periods;
• P denotes a number of detection electrodes not greater than a number of detection electrodes on a touch control screen;
• chip sequences prescribed in an active pen protocol are designated as the non-inverting drive signals;
• and
• phases of the inverting drive signals are 180 degrees opposite to phases of the non-inverting drive signals.

A touch control chip, comprising:

• a signal driving apparatus, comprising:
• a signal driving module, configured to:
• in a first signal driving period, apply non-inverting drive signals to M adjacent detection electrodes and apply inverting drive signals to N adjacent detection electrodes, wherein M+N≤P;
• and
• in a second signal driving period, apply non-inverting drive signals to K adjacent detection electrodes and apply inverting drive signals to L adjacent detection electrodes, wherein K+L≤P;
• wherein:
• one signal driving cycle comprises at least two signal driving periods in which drive signals are applied to P detection electrodes;
• non-inverting drive signals are applied to at least one of the P detection electrodes in two signal driving periods;
• P denotes a number of detection electrodes not greater than a number of detection electrodes on a touch control screen;
• chip sequences prescribed in an active pen protocol are designated as the non-inverting drive signals;
• and
• phases of the inverting drive signals are 180 degrees opposite to phases of the non-inverting drive signals.