Provided is a display device. The display device comprises a first substrate and a second substrate opposing each other at regular intervals, a plurality of barrier ribs disposed between the first substrate and the second substrate and partitioning a space between the first substrate and the second substrate to form a plurality of light-emitting cells, an excitation gas filled in the light-emitting cells, a light-emitting layer formed on inner walls of the light-emitting cells, and a first electron emission member disposed in each of the light-emitting cells inside the first substrate, emitting a first electron beam for exciting the excitation gas into the light-emitting cells and including a first electrode formed on an inner surface of the first substrate and a first electron emission source formed of boron nitride bamboo shoot (BNBS) on the first electrode.