The patent abstract shows that the present invention discloses an LED display device and a method for manufacturing an LED display device. The LED display device includes (2m1)*(2n1) colloid units. The colloid units are arranged in a rectangular array. The colloid units include m*n pixel colloid units. and (3mn2m2n+1) blank colloid units, m is a positive integer, n is a positive integer; a group of pixel units is provided on any pixel colloid unit, and the pixel unit is located at the center of the colloid of the corresponding pixel colloid unit; a colloid separation groove is provided between any two adjacent colloid units. The invention solves the problem of cross-lighting between pixels of a multi-pixel integrated LED display device, effectively improves the consistency of light color and black screen appearance of the LED display device, and optimizes the display performance of the LED display device.
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