Display driving device and display driving method

A display driving method, comprising:

• differentiating a panel into a first region, a second region and a third region;
• outputting, by an output region, a detection signal;
• outputting, by the panel, a red signal, a green signal and a blue signal;
• in a first period, outputting, by the second region and the third region, a point report signal according to the detection signal, and outputting, by the first region, the red signal;
• in a second period, outputting, by the first region and the third region, the point report signal according to the detection signal;
• and
• in a third period, outputting, by the first region and the second region, the point report signal according to the detection signal,
• wherein in the first period, the first region is incapable of outputting any point report signal according the detection signal;
• wherein in the second period, the second region is incapable of outputting any point report signal according the detection signal;
• wherein in the third period, the third region is incapable of outputting any point report signal according the detection signal;
• wherein the second period is later than the first period, and wherein the third period is later than the second period;
• and
• wherein the first region overlaps the output region, wherein the second region overlaps the output region, and wherein the third region overlaps the output region.