Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2007-09-25
2007-09-25
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C313S495000, C313S310000, C313S34600R
Reexamination Certificate
active
10980677
ABSTRACT:
An electron emission device includes cathode electrodes and gate electrodes formed on a first substrate and crossing each other while interposing an insulation layer. Opening portions are formed at the gate electrodes and the insulation layer while exposing the cathode electrodes. Electron emission sources are formed on the cathode electrodes exposed through the opening portions each with an area smaller than the area of the opening portion. An anode electrode is formed on a second substrate. Phosphor layers are formed on the anode electrode with a length extending in a first direction and a width extending in a second direction. Each electron emission source satisfies the following condition: a<b. In the condition, “a” indicates the distance between the electron emission source and the gate electrode in the first direction, and “b” indicates the distance between the electron emission source and the gate electrode in the second direction.
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Patel Nimeshkumar D.
Quarterman Kevin
Samsung SDI Co., Ltd
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