Display device for controlling a plurality of backlight zones based on display zones

A display device, comprises:

• a display panel, comprising a plurality of display zones, wherein each display zone comprises a plurality of pixel rows;
• and
• a backlight device, comprising a plurality of backlight zones that emit light independently, and the backlight zones are in one-to-one correspondence with the display zones;
• wherein the display panel is driven in a row-by-row scanning manner, and the plurality of backlight zones are sequentially illuminated in a process of row scanning of each frame of the display panel;
• and the illumination time when the first backlight zone is illuminated satisfies the following condition:
• t1≥(m/n+a)×t2+t3, wherein t1 is the time from the start of displaying each frame of image to the illumination of the first backlight zone, m is the number of the pixel rows, n is the number of the backlight zones, a is the number of pixel rows occupied by a portion of a light-emitting area that extends beyond a corresponding backlight zone when the backlight zone is illuminated, t2 is the scanning time for each pixel row of the display panel, and t3 is response time when the pixel row receives a row scanning signal.

An apparatus, comprising:

• a display device, comprises:
• a display panel, comprising a plurality of display zones, wherein each display zone comprises a plurality of pixel rows;
• and
• a backlight device, comprising a plurality of backlight zones that emit light independently, and the backlight zones are in one-to-one correspondence with the display zones;
• wherein the display panel is driven in a row-by-row scanning manner, and the plurality of backlight zones are sequentially illuminated in a process of row scanning of each frame of the display panel;
• and the illumination time when the first backlight zone is illuminated satisfies the following condition:
• t1≥(m/n+a)×t2+t3, wherein t1 is the time from the start of displaying each frame of image to the illumination of the first backlight zone, m is the number of the pixel rows, n is the number of the backlight zones, a is the number of pixel rows occupied by a portion of a light-emitting area that extends beyond a corresponding backlight zone when the backlight zone is illuminated, t2 is the scanning time for each pixel row of the display panel, and t3 is response time when the pixel row receives a row scanning signal.