A light and display content integration method, applicable to a display device, the display device being an integrated screen, comprising a display area and a light area, wherein the light area is illuminated by an LED array located behind the display area and around a periphery of the display area, the LED array comprises a plurality of light set units, and the display area is divided into a plurality of video regions according to the number of the light set units, each video region corresponding to one light set unit: wherein, the method for integration of light and display content comprises the following steps of: S1. obtaining an input signal, then executing Step S2; S2. analyzing a type of the input signal; whereby the type of input signal is one of - both a display content signal and a light signal, - a display content signal only, - a light signal only; when the input signal comprises the display content signal and the light signal, executing Step S3; when the input signal is the display content signal, executing Step S4 and Step S6; when the input signal is the light signal, executing Step S5 and Step S6; S3. outputting the input signal as an integration signal to the display device and exit; S4. extracting, from said display content signal, a color space data of a video frame of each video region in the display area, obtaining by calculation tone data corresponding to the color space data, and generating a light signal for the light set units based on the tone data, then executing Step S6; S5. obtaining the tone data of the light signal, and generating a display content signal having the same color as the tone data based on the tone data, then executing Step S6; S6. inserting the light signal into the display content signal according to corresponding time and a corresponding relationship between the light set units and the video region, and adding a mark to the display content signal to describe a feature of the display content signal, so as to form the integration signal, and sending the integration signal to the display device; wherein the tone data is represented in a RGB format; characterised in that in Step S4, when the display content signal is a static image, RGB values of the tone data for the static image are divided into X intervals to form a color space data of X 3 intervals, calculating a color histogram of the display content signal, extracting Y intervals with the highest numerical values in the color histogram, and obtaining median values of the RGB values in the Y intervals, and combining median values of the Y RGB values to form a main tone color space, and arranging the Y median values to a continuous sequence to generate the light signal based on the distribution of the Y median values in the color space, each of Y median values is held for a duration of a preset interval, and the light signal being a dynamic light signal; wherein, X and Y are positive integers, 2≤X≤50, 0≤Y≤X 3. S1. obtaining an input signal, then executing Step S2; S2. analyzing a type of the input signal; whereby the type of input signal is one of - both a display content signal and a light signal, - a display content signal only, - a light signal only; when the input signal comprises the display content signal and the light signal, executing Step S3; when the input signal is the display content signal, executing Step S4 and Step S6; when the input signal is the light signal, executing Step S5 and Step S6; - both a display content signal and a light signal, - a display content signal only, - a light signal only; S3. outputting the input signal as an integration signal to the display device and exit; S4. extracting, from said display content signal, a color space data of a video frame of each video region in the display area, obtaining by calculation tone data corresponding to the color space data, and generating a light signal for the light set units based on the tone data, then executing Step S6; S5. obtaining the tone data of the light signal, and generating a display content signal having the same color as the tone data based on the tone data, then executing Step S6; S6. inserting the light signal into the display content signal according to corresponding time and a corresponding relationship between the light set units and the video region, and adding a mark to the display content signal to describe a feature of the display content signal, so as to form the integration signal, and sending the integration signal to the display device;