Patent ID: 7812807

Claim:
A driving device for driving a display section of a display device by applying, in each horizontal period, voltages to pixels in the display section through source signal lines charged to have source signal potentials according to display data signals supplied from an outputting circuit, the driving device precharging the source signal lines before causing the source signal lines to have the source signal potentials for said each horizontal period, the driving device comprising: a switching circuit configured to (a) separate the outputting circuit from the source signal lines and (b) short-circuit at least one source signal line whose source signal potential is positive in one horizontal period and at least one source signal line whose source signal potential is negative in said one horizontal period, such that the short-circuited source signal lines are precharged; and a timing adjusting circuit configured to adjust (i) a time period for separating the outputting circuit from the source signal lines and (ii) a time period for short-circuiting the source signal lines to prolong or shorten a duration of the short circuiting by adjusting a period of a hold signal, wherein the timing adjusting circuit at least includes: a first signal generating circuit configured to generate a group of first signals from an inputted clock signal so as to count a number of pulses of the clock signal; a pulse width signal adjusting circuit configured to compare the group of first signals with setting signals for setting a pulse width of an output signal to be supplied to the switching circuit; and an R-S flip flop circuit, wherein the R-S flip flop circuit is set based on the group of first signals and a hold signal, and reset by an output from the pulse width signal adjusting circuit, so as to output, to the switching circuit, an output signal with a desired pulse width.