The invention provides a display control device which comprises a detection module used for detecting whether display equipment is in a shutdown response state or not, and generating a first control signal if the display equipment is in the shutdown response state; And the display control module used for generating a black frame inserting signal according to the first control signal so as to control a display panel of the display equipment to display a picture with the gray scale of zero. Correspondingly, the invention further provides a display control method and display equipment. Accordingto the invention, the shutdown afterimage can be eliminated.