Flat-panel display having spacer with rough face for inhibiting secondary electron escape
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United States of America Patent
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Sep 9, 2003
Grant Date -
N/A
app pub date -
Dec 11, 1998
filing date -
Dec 11, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A flat-panel display contains a pair of plate structure (20 and 22) separated by a spacer (24) having a rough face (54 or 56). When electrons strike the spacer, the roughness in the spacer's face causes the number of secondary electrons that escape the spacer to be reduced, thereby alleviating positive charge buildup on the spacer. As a result, the image produced by the display is improved. The spacer facial roughness can be achieved in various ways such as depressions (60, 62, 64, 66, 70, 74, or 80) or/and protuberances (82, 84, 88, and 92). Various techniques are presented for manufacturing the display, including the rough-faced spacer.
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