Display driving circuit including source driver sensing noise occurrence and method for driving display panel

A display driving circuit, adapted to drive a display panel to display an image, the display driving circuit comprising:

• a source driver circuit, configured to sense whether noise occurs and output a lock signal, wherein the lock signal indicates whether the noise occurs;
• and
• a timing controller circuit, coupled to the source driver circuit, and configured to output image data to the source driver circuit and receive the lock signal from the source driver circuit,
• wherein the timing controller circuit adjusts a frame rate of the display panel when the lock signal indicates that the noise occurs,
• wherein the timing controller circuit adjusts the frame rate of the display panel from a first frame rate to a second frame rate during a next frame period, wherein the first frame rate is larger than the second frame rate,
• wherein the timing controller circuit recovers the frame rate of the display panel from the second frame rate to the first frame rate during a V-blanking period of the frame period.

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

• sensing whether noise occurs and outputting a lock signal, wherein the lock signal indicates whether the noise occurs;
• adjusting a data depth of an image data when the lock signal indicates that the noise occurs, wherein the data depth of the image data is adjusted from a first data depth to a second data depth during an active period of a frame period, wherein the first data depth is larger than the second data depth;
• recovering the data depth of the image data from the second data depth to the first data depth during a V-blanking period of the frame period;
• and
• driving the display panel to display an image according to the image data.

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

• sensing whether noise occurs and outputting a lock signal, wherein the lock signal indicates whether the noise occurs;
• adjusting a frame rate of the display panel when the lock signal indicates that the noise occurs, wherein the frame rate of the display panel is adjusted from a first frame rate to a second frame rate during a next frame period, wherein the first frame rate is larger than the second frame rate;
• recovering the frame rate of the display panel from the second frame rate to the first frame rate during a V-blanking period of the frame period;
• and
• driving the display panel to display an image according to the frame rate.