A control method for improving the luminous uniformity of a display device includes a panel which includes a plurality of sampling pixels, wherein each sampling pixel corresponding to a coordinate of the panel. The control method includes receiving an input pixel, determining the neighboring pixels of the input pixel according to a coordinate of the input pixel and the coordinates of the plurality of the sampling pixels, receiving the gamma table of the neighboring sampling pixels, each gamma table including a luminous calibrating value of a neighboring sampling pixel, retrieving the corresponding specific luminous calibrating value according to the corresponding grey level of the input pixel, and calculating the luminous calibrating value of the input pixel according to the coordinate of the input pixel, the coordinates of the neighboring sampling pixels and the specific luminous calibrating value.