Electron emission source comprising carbon-based material and photoelectric element, method of preparing the same, electron emission device and electron emission display device comprising the electron emission source

摘要

An electron emission source includes a carbon-based material and a photoelectric element, an electron emission device and an electron emission display include the electron emission sources. The electron emission source is prepared by preparing a composition for forming an electron emission source that contains a carbon-based material, a photoelectric element, and a vehicle, applying the composition to a substrate, and heating the composition applied to the substrate. The electron emission source includes the photoelectric element in addition to the carbon material, and thus can have a high luminance.