Rollable display device and driving method thereof for controlling refresh rate of display

A driving method for a display device, the display device comprising:

• a housing, comprising a first side and a second side opposite to the first side in a first direction;
• a display screen, comprising a first end and a second end, at least one of the first end and the second end being accommodated in the housing, wherein a first display area in a display area of the display screen is located between the first side and the second side, and a second display area in the display area of the display screen is accommodated in the housing;
• and
• a drive circuit, configured, when the display screen displays an image, to provide drive signals to the first display area and control a display of the first display area without providing drive signals to the second display area, wherein the drive method includes:
• scanning each display pixel row of the first display area of the display screen line by line, providing the drive signals to the first display area, and controlling a display of the first display area when scanning the first display area of the display screen;
• and
• stopping outputting the drive signals so as not to provide the drive signals to the second display area when scanning the second display area of the display screen,
• wherein the scanning of each display pixel row of the first display area of the display screen line by line when scanning the first display area of the display screen further comprises:
• scanning each display pixel row of the first display area of the display screen line by line at a fourth refresh frequency and providing the drive signals to the first display area if the area of the first display area gradually increases;
• and
• scanning each display pixel row in the first display area of the display screen line by line at a fifth refresh frequency and providing the drive signals to the first display area if the area of the first display area increases to the fourth preset value and remains unchanged;
• wherein:
• the fourth refresh frequency is greater than the fifth refresh frequency.