Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2005-08-09
2005-08-09
Guharay, Karabi (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C313S309000, C313S336000, C313S351000
Reexamination Certificate
active
06927534
ABSTRACT:
A field emission device (FED) and a method for fabricating the FED are provided. The FED includes micro-tips with nano-sized surface features, and a focus gate electrode over a gate electrode, wherein one or more gates of the gate electrode is exposed through a single opening of the focus gate electrode. In the FED, occurrence of arcing is suppressed. Although an arcing occurs in the FED, damage of a cathode and a resistor layer is prevented, so that a higher working voltage can be applied to the anode. Also, due to the micro-tips with nano-sized surface features, the emission current density of the FED increases, so that a high-brightness display can be achieved with the FED. The gate turn-on voltage can be lowered due to the micro-tip as a collection of nano-sized tips, thereby reducing power consumption.
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Cha Seung-nam
Choi Jun-hee
Lee Hang-woo
Burns Doane , Swecker, Mathis LLP
Colón German
Guharay Karabi
Samsung SDI & Co., Ltd.
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