Patent ID: 11955047
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 13:
14. A display panel driving method for driving a display panel, comprising:
providing the display panel, wherein the display panel comprises:
a data compression unit configured to acquire a plurality of first compensation data and a common parameter, and further configured to compress each of the first compensation data into second compensation data according to a preset compression rule based on the first compensation data and the common parameter;
a data decompression unit configured to acquire a plurality of the second compensation data and the common parameter, and further configured to decompress each of the second compensation data into the first compensation data according to a preset decompression rule based on the second compensation data and the common parameter;
a source driving circuit connected to the data compression unit configured to provide a plurality of the first compensation data;
a first storage unit connected to the data compression unit configured to store the common parameter;
a second storage unit connected to the data compression unit configured to store the second compensation data when powered off and powered on; and
a third storage unit connected to the data compression unit and the data decompression unit configured to store the second compensation data when powered on,
wherein a bit width of the second compensation data is smaller than a bit width of the respective first compensation data, and a difference between each of the first compensation data and the respective second compensation data is equal to the common parameter;

acquiring, by the data compression unit, the plurality of first compensation data provided by the source driving circuit and the common parameter stored in the first storage unit, and generating, by the data compression unit, a plurality of second compression data based on the plurality of first compensation data and the common parameter;
storing, by the third storage unit, the second compression data; and
acquiring, by the data decompression unit, the second compensation data in the third storage unit to compensate the output grayscale in real time,
wherein the display panel comprises a driving transistor, and the first compensation data comprises mobility compensation data of the driving transistor; and
wherein the common parameter is acquired by a preset detection method, and the preset detection method comprises:
writing, in a non-compensation state of the display panel, different input grayscales into a preset area of the display panel in a time-division way;
detecting a brightness of the preset area to obtain a plurality of input grayscales corresponding to different brightness;
acquiring an output grayscale corresponding to each of the input grayscales in the non-compensation state, according to the plurality of input grayscales corresponding to different brightness;
acquiring a plurality of target input grayscales corresponding to different brightness;
acquiring target compensation data according to the plurality of target input grayscales and a plurality of output grayscales; and
subtracting a preset value from the target compensation data to obtain the common parameter.