Display panel with touch detection function, method of driving the same, drive circuit, and electronic unit

A method of driving a display panel, the method comprising:

• generating sync signal pulses corresponding to a presence or an absence of a disturbance noise, based on a base clock having a predetermined frequency;
• displaying an image on a display;
• switching a horizontal period in one frame period of the image;
• performing a touch detection operation in synchronization with a pulse period of one or an integral multiple of the sync signal pulses;
• performing display on a predetermined timing in synchronization with the base clock;
• and
• switching display of a screen, for each of the frame periods of the image.

A drive circuit comprising:

• a signal generation section that generates sync signal pulses corresponding to a presence or an absence of a disturbance noise, based on a base clock having a predetermined frequency;
• a display section that displays an image, the display section being configured to switch a horizontal period in one frame period of the image, in synchronization with the sync signal pulses;
• and
• a touch detection section that is configured to perform a touch detection operation in synchronization with a pulse period of one or an integral multiple of the sync signal pulses and configured to detect the disturbance noise,
• wherein the display section performs display of one horizontal period on a predetermined timing in synchronization with the base clock.

An electronic unit including a display panel with a touch detection function, and a control section performing operation control using the display panel, the display panel comprising:

• a signal generation section that generates sync signal pulses corresponding to a presence or an absence of a disturbance noise, based on a base clock having a predetermined frequency;
• a display section that displays an image, the display section being configured to switch a horizontal period in one frame period of the image, in synchronization with the sync signal pulses;
• and
• a touch detection section that is configured to perform a touch detection operation in synchronization with a pulse period of one or an integral multiple of the sync signal pulses and configured to detect the disturbance noise,
• wherein the display section performs display of one horizontal period on a predetermined timing in synchronization with the base clock.