An electronic device includes a display layer and a support part disposed under the display layer. The support part includes a first support portion having first and second surfaces defined thereon, and a second support portion facing the second surface. The first support portion includes a first material, the first surface faces the display layer, and the first surface is closer to the display layer than the second surface is. The second support portion includes a second material different from the first material. The first material includes glass fiber reinforced plastic.