Cathode substrate for electron emission device and electron emission device with the same

In an electron emission device, the surface roughness of a substrate with driving electrodes and an insulating layer is optimized. The electron emission device includes first and second substrates facing each other with a predetermined distance therebetween. An electron emission unit is formed on a...

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Bibliographic Details
Main Authors AHN SANG-HYUCK, LEE BYONG-GON, JEON SANG-HO, HONG SU-BONG
Format Patent
LanguageEnglish
Published 13.01.2009
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:In an electron emission device, the surface roughness of a substrate with driving electrodes and an insulating layer is optimized. The electron emission device includes first and second substrates facing each other with a predetermined distance therebetween. An electron emission unit is formed on a surface of the first substrate facing the second substrate, and includes electron emission regions, a plurality of driving electrodes, and an insulating layer for insulating the driving electrodes from each other. A light emission unit is formed on a surface of the second substrate facing the first substrate, and includes phosphor layers and an anode electrode. The first substrate satisfies the following condition: 0.5 nm<=Ra<=1.8 nm, where Ra indicates the average roughness of the surface of the first substrate facing the second substrate.
Bibliography:Application Number: US20050286384