Provided are a display module and a display device having the same. The display module includes: a drive substrate, a pixel definition layer, an OLED device layer, a color filter layer including sub-filter regions arranged in one-to-one correspondence to sub-pixel regions, and at least one blocking layer disposed on a side of the OLED device layer away from the drive substrate. Each blocking layer includes opening regions disposed to face the sub-pixel regions along a thickness direction of the drive substrate, and light shielding regions disposed to face portions of two adjacent sub-filter regions at which the two sub-filter regions are connected, along the thickness direction of the drive substrate. A length of a connecting line between two ends of each light shielding region is less than an actual length of the light shielding region on a cross section perpendicular to the drive substrate.