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US07635945B2 Field emission device having a hollow shaped shielding structure 有权
场致发射器件具有中空形屏蔽结构

Field emission device having a hollow shaped shielding structure
摘要:
A field emission device (10) includes a sealed container (11) with a light-permeable portion (12). A phosphor layer (13) is formed on the light-permeable portion. A light-permeable anode (14) is formed on the light-permeable portion. At least one cathode is positioned opposite to the light-permeable anode. A shielding barrel (16) is electrically connected to the at least one cathode and disposed in the container. The shielding barrel has opposite open ends respectively facing towards the light-permeable anode and the cathode (18, 19). The shielding barrel has an inner surface, and a slurry layer (17) containing conductive nano material is formed on the inner surface of the shielding barrel.
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