Display compensation method and system for display panel and display device

A display compensation method for a display panel, comprising:

• a display panel;
• a display driving module electrically connected to the display panel, wherein the display driving module is configured to apply a display compensation coefficient to control the display panel to display under a corresponding binding point grayscale, and
• the display compensation coefficient comprises a first set of initial compensation coefficients and an output compensation coefficient;
• an image acquisition module configured to obtain image data of a displayed image of the display panel when the compensation coefficient is applied to control the display panel to display under the corresponding binding point grayscale;
• a performance evaluation module electrically connected to the image acquisition module and configured to determine whether a performance index of the displayed image satisfies a standard based on the image data;
• a coefficient adjustment module electrically connected to the performance evaluation module, wherein when the performance evaluation module determines that the performance index of the displayed image does not satisfy the standard, the coefficient adjustment module is configured to obtain a plurality of area evaluation values respectively corresponding to a plurality of display areas of the display panel based on average luminance and chrominance data corresponding to the display areas, obtain a target area evaluation value based on the plurality of area evaluation values, determine at least one of the plurality of display area corresponding to the target area evaluation value as a target area in a target area set, and obtain the output compensation coefficient based on the target compensation coefficient corresponding to the target area included in the target area set;
• wherein obtaining the plurality of area evaluation values comprises obtaining a first target and chrominance data, and calculating a deviation between the average luminance and chrominance data corresponding to each display area and the first target luminance and chrominance data, to obtain the area evaluation value corresponding to the display area;
• and
• a storage module electrically connected to the display driving module and the coefficient adjustment module, wherein the storage module is configured to store output compensation coefficients corresponding to different binding point grayscales.

A display device, comprising:

• a display panel;
• and
• a display driving module electrically connected to the display panel, wherein the display driving module is configured to perform a display compensation method for the display panel to obtain an output compensation coefficient and apply the output compensation coefficient to control the display panel to display, the method comprising:
• obtaining image data of a displayed image of the display panel when a first set of initial compensation coefficients is applied to control the display panel to display under a corresponding binding point grayscale;
• determining, based on the image data, whether a performance index of the displayed image satisfies a standard, and obtaining, in response to determining that the performance index of the displayed image does not satisfy the standard, a plurality of area evaluation values respectively corresponding to a plurality of display areas of the display panel based on average luminance and chrominance data corresponding to the display areas;
• wherein the obtaining, in response to determining that the performance index of the displayed image does not satisfy the standard, the plurality of area evaluation values comprises obtaining a first target and chrominance data, and calculating a deviation between the average luminance and chrominance data corresponding to each display area and the first target luminance and chrominance data, to obtain the area evaluation value corresponding to the display area;
• obtaining a target area evaluation value based on the plurality of area evaluation values, and determining at least one of the plurality of display areas corresponding to the target area evaluation value as a target area in a target area set;
• and
• obtaining a target compensation coefficient corresponding to the target area in the target area set, and obtaining an output compensation coefficient based on the obtained target compensation coefficient, so as to apply the output compensation coefficient for the display panel to display.