Method of preventing junction leakage in field emission displays
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United States of America Patent
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Feb 1, 2000
Issued Date -
N/A
app pub date -
Nov 12, 1998
filing date -
Sep 16, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for fabricating a field emission display (FED) with improved junction leakage characteristics is provided. The method includes the formation of a light blocking element between a cathodoluminescent display screen of the FED and semiconductor junctions formed on a baseplate of the FED. The light blocking element protects the junctions from light formed at the display screen and light generated in the environment striking the junctions. Electrical characteristics of the junctions thus remain constant and junction leakage is improved. The light blocking element may be formed as an opaque light absorbing or light reflecting layer. In addition, the light blocking element may be patterned to protect predetermined areas of the baseplate and may provide other circuit functions such as an interconnect layer.
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