Method and apparatus for compensating for brightness of display panel, display device, and storage medium

An apparatus for compensating for brightness of a display panel, comprising:

• a first acquisition module configured to acquire a brightness value of the display panel;
• a second acquisition module configured to acquire, based on the brightness value of the display panel, a compensation function corresponding to the brightness value, and compensation parameters of the compensation function;
• and
• a brightness compensation module configured to compensate for brightness of an image to be displayed by the display panel by using the compensation function corresponding to the brightness value;
• wherein a degree at which the brightness of the image to be displayed by the display panel is compensated is negatively correlated with the brightness value of the display panel,
• wherein the second acquisition module is configured to:
• acquire the compensation function corresponding to the brightness value, based on the brightness value of the display panel and a first corresponding relationship between brightness values of the display panel and compensation functions;
• and
• acquire the compensation parameters of the compensation function corresponding to the brightness value, based on the brightness value of the display panel and a second corresponding relationship between the brightness values of the display panel and groups of compensation parameters,
• wherein the brightness compensation module comprises:
• a first compensation unit configured to compensate for the brightness of the image to be displayed by the display panel by using a first compensation function, after the brightness value of the display panel is determined to be within a first brightness range based on the brightness value of the display panel;
• and
• a second compensation unit configured to compensate for the brightness of the image to be displayed by the display panel by using a second compensation function, after the brightness value of the display panel is determined to be within a second brightness range based on the brightness value of the display panel,
• wherein the first corresponding relationship comprises:
• a corresponding relationship between the first brightness range and the first compensation function, and a corresponding relationship between the second brightness range and the second compensation function;
• and
• a lower limit value of the first brightness range is greater than an upper limit value of the second brightness range, and a degree at which the brightness of the image to be displayed by the display panel is compensated by using the first compensation function is smaller than a degree at which the brightness of the image to be displayed by the display panel is compensated by using the second compensation function.

A display device, comprising:

• a display panel, a processor, and a memory for storing at least one executable instruction of the processor, wherein the processor is configured to execute a method for compensating for brightness of a display panel, and the method comprise:
• acquiring a brightness value of the display panel;
• acquiring, based on the brightness value of the display panel, a compensation function corresponding to the brightness value, and compensation parameters of the compensation function;
• and
• compensating for brightness of an image to be displayed by the display panel by using the compensation function corresponding to the brightness value;
• wherein a degree at which the brightness of the image to be displayed by the display panel is compensated is negatively correlated with the brightness value of the display panel,
• wherein acquiring, based on the brightness value of the display panel, the compensation function corresponding to the brightness value, and the compensation parameters of the compensation function comprises:
• acquiring the compensation function corresponding to the brightness value, based on the brightness value of the display panel and a first corresponding relationship between brightness values of the display panel and compensation functions;
• and
• acquiring the compensation parameters of the compensation function corresponding to the brightness value, based on the brightness value of the display panel and a second corresponding relationship between the brightness values of the display panel and groups of compensation parameters,
• wherein compensating for the brightness of the image to be displayed by the display panel by using the compensation function corresponding to the brightness value comprises:
• compensating for the brightness of the image to be displayed by the display panel by using a first compensation function, after the brightness value of the display panel is determined to be within a first brightness range based on the brightness value of the display panel;
• and
• compensating for the brightness of the image to be displayed by the display panel by using a second compensation function, after the brightness value of the display panel is determined to be within a second brightness range based on the brightness value of the display panel,
• wherein the first corresponding relationship comprises:
• a corresponding relationship between the first brightness range and the first compensation function, and a corresponding relationship between the second brightness range and the second compensation function;
• and
• a lower limit value of the first brightness range is greater than an upper limit value of the second brightness range, and a degree at which the brightness of the image to be displayed by the display panel is compensated by using the first compensation function is smaller than a degree at which the brightness of the image to be displayed by the display panel is compensated by using the second compensation function.