| 摘要 |
An electron emission device includes: a plate; first and second electrodes insulated from each other and arranged having a predetermined shape; an electron emitter connected to one of the first and second electrodes; and a third electrode formed with a hole through which electrons emitted from the electron emitter pass. The ratio of the a hole width of the third electrode to a width of the electron emitter is equal to or more than about 0.5 and equal to or less than about 1.0. With this configuration, there is no twisting or sagging, thereby satisfying predetermined standards for brightness and color purity.
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