A display device provided. The display device includes a display portion and a bonding portion disposed opposite to each other and a bent portion connected between the display portion and the bonding portion; a support layer, including a second support portion close to a side of the bent portion; and a buffer portion, disposed on the second support portion. The bent portion includes a bent sub-portion. A length of the buffer portion in a first direction is greater than or equal to a distance from any position on the bent sub-portion to a first plane in the first direction. The first direction is a thickness direction along the display portion.