Light-emitting diode driving circuits and driving methods thereof

摘要

A driving circuit includes a first PWM driving module and a second PWM driving module. The first PWM driving module generates a first square-wave signal to drive a first illumination unit according to a first data signal of a data stream, wherein the first square-wave represents an illumination period of the first illumination unit in a display cycle. The second PWM driving module generates a second square-wave signal to drive the second illumination unit according to a second data signal of the data stream, wherein the second square-wave signal, which has a different phase with the first square-wave signal, represents an illumination period of the second illumination unit in the display cycle.

主权项

1. A driving circuit, comprising:
a first PWM driving module, generating a first square-wave signal to drive a first illumination unit according to a first data signal of a data stream, wherein the first square-wave signal represents an illumination period of the first illumination unit in a display cycle, wherein a first register unit receives the first data signal and outputs the first data signal to the first PWM driving module; and a second PWM driving module, generating a second square-wave signal to drive a second illumination unit according to a second data signal of the data stream, wherein the second square-wave signal represents an illumination period of the second illumination unit in the display cycle, wherein a second register unit receives the second data signal and outputs the second data signal to the second PWM driving module, and the first square-wave signal has a different phase with the second square-wave signal, wherein a width of the first square-wave signal is different from a width of the second square-wave signal.