Method and device for backlight driving, and computer equipment

Computer equipment, comprising:

• a memory, a processor and a computer program stored in the memory and executable by the processor, wherein the computer program, when being executed by the processor, causes the computer equipment to perform operations to drive a backlight of a display panel, and the operations comprise:
• generating local dimming data, the local dimming data comprising a frame refresh rate of the display panel and luminance data of each of the plurality of backlight zones;
• generating a gray-scale clock signal according to the frame refresh rate in the local dimming data, a frequency of the gray-scale clock signal being matched with the frame refresh rate in the local dimming data;
• generating drive data according to a plurality of luminance data in the local dimming data;
• and
• driving the plurality of backlight zones according to the gray-scale clock signal and the drive data,
• wherein the operation of generating a gray-scale clock signal according to the frame refresh rate in the local dimming data comprises:
• determining a target frequency according to the frame refresh rate in the local dimming data by a formula:
• GCLK
• ⁢
• Rate
• =
• P
• 1
• Frame
• ⁢
• rate
• -
• Dummy
• ⁢
• time
• wherein GCLK Rate represents the target frequency, P represents the number of gray-scale clock signals during a display of a frame of image by the display panel, Frame rate represents the frame refresh rate in the local dimming data, and Dummy time represents blanking time during the display of a frame of image by the display panel;
• and
• generating the gray-scale clock signal, wherein a frequency of the gray-scale clock signal is equal to the target frequency.

A non-transitory computer readable storage medium, in which a computer program is stored, wherein the computer program, when being executed by a processor, causes the processor to perform operations to drive a backlight of a display panel, and the operations comprise:

• generating local dimming data, the local dimming data comprising a frame refresh rate of the display panel and luminance data of each of the plurality of backlight zones;
• generating a gray-scale clock signal according to the frame refresh rate in the local dimming data, a frequency of the gray-scale clock signal being matched with the frame refresh rate in the local dimming data;
• generating drive data according to a plurality of luminance data in the local dimming data;
• and
• driving the plurality of backlight zones according to the gray-scale clock signal and the drive data,
• wherein the operation of generating a gray-scale clock signal according to the frame refresh rate in the local dimming data comprises:
• determining a target frequency according to the frame refresh rate in the local dimming data by a formula:
• GCLK
• ⁢
• Rate
• =
• P
• 1
• Frame
• ⁢
• rate
• -
• Dummy
• ⁢
• time
• wherein GCLK Rate represents the target frequency, P represents the number of gray-scale clock signals during a display of a frame of image by the display panel, Frame rate represents the frame refresh rate in the local dimming data, and Dummy time represents blanking time during the display of a frame of image by the display panel;
• and
• generating the gray-scale clock signal, wherein a frequency of the gray-scale clock signal is equal to the target frequency.