Patent ID: 8456455

Claim:
A display driving device that drives a display panel having source lines each provided for a corresponding one of columns of pixels, said display driving device comprising: first switches each provided for a corresponding one of the source lines; second switches each provided for a corresponding one of the source lines; drivers each of which is provided for a corresponding one of the source lines and drives a pixel signal to the corresponding one of the source lines via a corresponding one of said second switches; a power source unit configured to apply an intermediate voltage of the pixel signal to an intermediate voltage line, the intermediate voltage having a level between a minimum voltage level and a maximum voltage level of the pixel signal; and a control unit configured to control turning on and off said first switches and said second switches, and a third switch inserted between the intermediate voltage line and said first switches by a series connection, wherein each of said first switches has a first end connected to the intermediate voltage line and a second end connected to a corresponding one of the source lines, each of said second switches has a first end connected to a corresponding one of said drivers and a second end connected to a corresponding one of the source lines and to a second end of a corresponding one of said first switches, and said control unit is configured to temporarily turn off at least part of said second switches, and concurrently, temporarily turn on corresponding ones of said first switches, and after turning on said corresponding first switches, temporarily turn on said third switch during a transition period from an output period of a pixel signal to an output period of a subsequent pixel signal.