METHOD AND DEVICE FOR FREQUENCY MULTIPLICATION OF DISPLAY CONTROL

摘要

A method for display control and a device for the same. The method comprises the following steps of: acquiring a preset brightness set value Mi and inputting the same into a data strobe unit (130) as strobe data; inputting a base clock into a counter (110), with the counter (110) outputting a periodic digital signal Qi; passing the signal Qi through a logic unit (120) and then outputting an Ai into the data strobe unit (130) as the strobed data; outputting by the data strobe unit (130) a Di, and after passing the Di through a logic combiner (140) outputting pulse width modulated (PWM) pulse signals OUT; and driving, by the PWM signals OUT, a light emitting diode (LED) to carry out the display control. In the technical solution of the present invention, under the premise that the precision of the original data is unaffected, the display control is achieved at a high refresh frequency by generating the pulse width modulated pulse signals at a higher frequency, and at the same time the driving effect at the output port is ensured by properly adjusting the duty ratio of the pulse width modulated (PWM) pulse signals. Furthermore, implementing the above solution by way of the logic combination made to the outputs of the counter and by way of data strobing means is simple and highly efficient.