Screen positioning method, terminal equipment and display equipment

The invention discloses a screen positioning method, a terminal device and a display device, the terminal device responds to a wallpaper customization operation, sends indication information to the display device and displays a shooting preview interface; the shooting preview interface comprises a positioning wireframe and a shooting control, and the shooting control is in a response forbidding state when a screen frame is not completely located in the positioning wireframe; the indication information is used for indicating the display device to display a screen graph card, and the screen graph card at least comprises a first color area and a second color area; matching a target color area from the first color area and the second color area according to the color of a background area in the shooting preview interface, and positioning and tracking a screen frame according to the target color area; when it is detected that the screen frame is completely located in the positioning wireframe, the shooting control