Matrix-type cold-cathode electron source device
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United States of America Patent
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Oct 23, 2012
Grant Date -
Jan 6, 2011
app pub date -
Feb 19, 2009
filing date -
Mar 4, 2008
priority date (Note) -
Expired
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Abstract
A matrix-type cold-cathode electron source device includes a mesh structure (8) on which through-holes (9) are formed and drive portions (7a, 7b). The through-hole (9) has an opening diameter of 1/N or less of the alignment pitch of electron source elements (4) and the drive portions (7a, 7b) drive the mesh structure (8) every 1/N of the alignment pitch of the electron source elements (4). Thus it is possible to increase a resolution without reducing the size of an electron source.
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