Colour temperature adjustment method, colour temperature adjustment device and display device

The embodiments of the present invention provide a colour temperature adjustment method, a colour temperature adjustment device and a display device. In the embodiments of the present invention, the method comprises: matching an input colour temperature signal with a colour temperature template, and extracting a current signal corresponding to the colour temperature template matching the input colour temperature signal; and controlling a light-emitting unit to emit lights by means of the current signal. According to the embodiments of the present invention, by establishing the colour temperature template through a calculation formula of the correlation between the current and the colour temperature, a parameter range in the colour temperature template can be set thereby according to actual needs, thereby extending a selection range of the colour temperature; by matching the colour temperature signal with the colour temperature template, an intermediate calculation process is omitted, and the colour temperature adjustment time is shortened; and by controlling current values flowing through a blue-light chip and a green-light chip, a red fluorescent powder is excited, thereby enabling an LED lamp to emit lights with different colour temperatures; and improving the colour temperature adjustment accuracy and the user experience.