Brightness correction method and correction device for display panel

The invention discloses a brightness correction method and correction device for a display panel, and the method comprises the steps: obtaining an initial brightness information matrix of a detection image of the display panel under a preset gray scale, and obtaining a mean brightness information matrix according to the initial brightness information matrix; obtaining a brightness correction coefficient matrix of the display panel under a preset gray scale, and obtaining a brightness deviation matrix according to the average brightness information matrix and the brightness correction coefficient matrix; and performing brightness correction on the detection image according to the brightness deviation matrix and the average brightness information matrix. According to the brightness correction method of the display panel, the influence of uneven brightness under the action of gravity on brightness correction can be removed, so that the brightness uniformity of the display panel is improved. 本申请公开了一种显示面板的亮度校正方法及校