CONTROL CIRCUIT, CONTROL METHOD AND DISPLAY APPARATUS

The present application provides a control circuit, a control method, and a displaying device. The control circuit includes a sampling module, a switching module, and a working power supply, where the sampling module is configured to collect a level signal corresponding to a pulse width modulation signal, one end of the switching module is connected to the sampling module, the other end of the switching module is connected to at least one group of signal feedback ends, each of the signal feedback ends includes at least two feedback points, the feedback points are configured to be connected to a light emitting unit, and the switching module is capable of being switched between a first mode and a second mode based on a relationship between the level signal and a preset threshold; in the first mode, the switching module is capable of controlling mutual independence of the feedback points in the signal feedback ends; in the second mode, the switching module is capable of controlling mutual association of the feedback points in the signal feedback ends; and the working power supply is connected to the sampling module and the switching module and supplies power to the sampling module and the switching module.