Unevenness correction data generation device

Provided is an unevenness correction data generation device that suppresses the occurrence of color unevenness when R, G, and B are turned on together. A non-uniformity correction data generation device (1) is provided with: a pattern generation unit (6) that displays a red image, a green image, and a blue image in which all R, G, B sub-pixels of a display panel (2) are lit at the same color gradation; a monochromatic camera (7) that captures each image in a monochromatic manner; a control unit (8) that generates first red brightness correction data, first green brightness correction data, and first blue brightness correction data for correcting brightness unevenness of R, G, and B on the basis of imaging data from the monochrome camera (7); a pattern generation unit (9) that causes the display panel (2) to display a white image by simultaneously displaying the red image, the green image, and the blue image corrected by the respective brightness correction data; a color camera (10) that captures a white image