1. A depth-priority integral imaging display method using a nonuniform dynamic mask array, comprising: transmitting elemental images through a lens array and a mask panel, thus displaying 3D images, wherein the mask panel, includes a blocking region through which each elemental image cannot pass and a transmission region through which the elemental image can pass; and changing positions of the blocking region and the transmission region wherein the blocking region and the transmission region both corresponding to each basic lens are designated as one block and the positions of the blocking region and the transmission region in the one block is changed as time passes, and wherein the one block of the mask panel includes one blocking region and one transmission region, the one blocking region and the one transmission region having substantially a same area, being arranged along a horizontal direction in a first block and being arranged along a vertical direction in a second block adjacent to the first block.