Display panel control method and display device

The invention provides a control method of a display panel and a display device, the display panel at least comprises a plurality of pixel units, each pixel unit at least comprises a first blue sub-pixel and a second blue sub-pixel, the first blue sub-pixel presents blue visible light of a first wavelength, the second blue sub-pixel presents blue visible light of a second wavelength, and the second blue sub-pixel presents blue visible light of a second wavelength. The first wavelength is smaller than the second wavelength, and the control method at least comprises the following steps: determining a target blue display demand level from a plurality of blue display demand levels; and according to the target blue display demand level, configuring the first brightness level of the first blue sub-pixel and the second brightness level of the second blue sub-pixel, according to the control method of the display panel provided by the invention, the brightness levels of the first blue sub-pixel and the second blue sub