| 摘要 |
An electron emission device includes a substrate 10, first electrodes 14 formed on the substrate, electron emission regions 20 electrically connected to the first electrodes, and second electrodes 18 placed over the first electrodes such that the second electrodes are insulated from the first electrodes. The second electrodes have a plurality of openings 181 at the crossed areas of the first and the second electrodes to expose the electron emission regions, wherein 1.36‰¤P/D‰¤1.65, where D indicates the width, or diameter, of the openings of the second electrodes, and P indicates the pitch of the openings of the second electrodes.
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