Display device and display method

A display device, comprising:

• a memory configured to store at least one pre-stored image;
• and
• a controller configured to:
• obtain a first target image and a second target image according to the at least one pre-stored image;
• and control a display module, according to a first control instruction, to display the second target image and hide a display of at least one first sub-region in a first region in a frame displayed after switching from the first target image to the second target image;
• wherein a relationship between the first target image and the second target image meets at least one of:
• a size of the first target image is different from a size of the second target image a position of the first target image in a display picture is different from a position of the second target image in the display picture;
• wherein the first region represents a region located within an outer contour of the first target image and not overlapping with the second target image;
• and
• wherein the controller is further configured to control the display module, according to the first control instruction, to display the second target image and continue to display at least one first sub-region in the first region in the frame displayed after switching from the first target image to the second target image.