Mura compensation device and data processing circuit for Mura compensation

A Mura compensation device, comprising:

• a reception circuit configured to obtain a plurality of brightness values corresponding to a plurality of grayscale values associated with a single area of a display panel;
• and
• a calculation circuit configured to:
• calculate compensation values for the plurality of grayscale values so as to resolve a Mura phenomenon caused by differences between target brightness values and the plurality of brightness values, calculate a global gain based on the plurality of brightness values corresponding to the plurality of grayscale values associated with the single area, and calculate final compensation values by producing a representative compensation value for each area and applying the global gain to the representative compensation value for each area.

A Mura compensation method, comprising:

• calculating brightness compensation values for a plurality of pixels in a Mura area in image data;
• calculating a representative compensation value for each Mura area using the brightness compensation values for the plurality of pixels;
• calculating a global gain for predetermined grayscales based on a single Mura area;
• and
• obtaining a final Mura compensation value by multiplying the representative compensation value for each Mura area and the global gain.