A display module includes: a display panel including a substrate, a transistor layer disposed on the substrate and including transistors, and a display layer disposed on the transistor layer and including a display element, where the display panel defines a groove or a through-hole therein; a base film including a first portion disposed on the display panel so that a portion of the first portion overlaps the groove or the through-hole, and a second portion connected to the first portion, wherein the base film defines a first indentation portion between the first portion and the second portion; and an adhesive layer bonding the first portion to the display panel.