Patent ID: 8169398

Claim:
A liquid crystal display control circuit, comprising: a first output unit configured to output a control signal for removing a residual electric charge from a liquid crystal display module that includes a backlight; a reference-signal obtaining unit configured to obtain a reference signal for setting a reference when turning on the backlight; a delay-time setting unit configured to set a delay time for delaying a turn-on time of the backlight from a turn-on time of the reference signal; a second output unit configured to output a turn-on signal for turning on the backlight at a turn-on time delayed by the delay time from the turn-on time of the reference signal; a detecting unit configured to detect an identification signal for identifying a type of the liquid crystal display module, wherein the delay-time setting unit is configured to set the delay time depending on the type of the liquid crystal display module indicated by the identification signal; a determining unit configured to determine whether the control signal is unnecessary for the liquid crystal display module indicated by the identification signal; and a switching unit configured to switch, when it is determined that the control signal is unnecessary for the liquid crystal display module, an output signal from the turn-on signal to the reference signal, wherein the first output unit is configured to generate the control signal based on the reference signal.