Method of preventing junction leakage in field emission displays

Details Method of preventing junction leakage in field emission displays Method of preventing junction leakage in field emission displays

1998-11-12

2000-02-01

Day, Michael H.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313309, 313336, 313496, H01J 130, H01J 1924

Patent

active

060206837

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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