Patent ID: 11881145
Assignee: KUNSHAN NEW FLAT PANEL DISPLAY TECHNOLOGY CENTER CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for determining a brightness compensation parameter of a display panel to be compensated, the display panel to be compensated has a first display region and a second display region, and the method comprises:
obtaining, at any grayscale, a plurality of first acquired brightness values of a plurality of first sub-pixels of a target color in the first display region and a plurality of second acquired brightness values of a plurality of second sub-pixels of the target color in the second display region of the display panel to be compensated;
determining whether an acquisition ratio of an average value of the plurality of first acquired brightness values to an average value of the plurality of second acquired brightness values is within a standard range, wherein the standard range is determined according to a sample display panel;
correcting, under a condition that the acquisition ratio is not within the standard range, at least one of i) the plurality of first acquired brightness values or ii) the plurality of second acquired brightness values to obtain a corrected brightness value of the display panel to be compensated, so that a corrected ratio of an average brightness value of the plurality of first sub-pixels of the target color to an average brightness value of the plurality of second sub-pixels of the target color after correction is within the standard range, and wherein the corrected brightness value comprises at least one of i) a plurality of first corrected brightness values of the plurality of first sub-pixels or ii) a plurality of second corrected brightness values of the plurality of second sub-pixels;
using the corrected brightness value as a display brightness value of the display panel to be compensated, and determining the brightness compensation parameter of the display panel to be compensated based on the corrected brightness value,
wherein correcting, under the condition that the acquisition ratio is not within the standard range, comprises:
obtaining the plurality of first corrected brightness values by multiplying the plurality of first acquired brightness values by a correction coefficient, so that a corrected ratio of an average value of the plurality of first corrected brightness values to an average value of the plurality of second acquired brightness values is within the standard range, and
wherein before the obtaining the plurality of first corrected brightness values by multiplying the plurality of first acquired brightness values by the correction coefficient, the method further comprises:
determining the correction coefficient according to a degree to which the acquisition ratio deviates from the standard range, which comprises:
obtaining an intervention range; wherein the intervention range has a same central value as the standard range, and the intervention range is greater than the standard range;
determining a first deviation value according to a difference between the intervention range and the acquisition ratio; and
determining the correction coefficient according to a relationship between the first deviation value and the intervention range.