Field emission unit and pixel tube for field emission display
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsYang Wei, Shou-Shan Fan
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Abstract
A pixel tube for field emission display includes a sealed container, an anode, a phosphor, and a cathode. The sealed container has a light permeable portion. The anode is located in the sealed container and spaced from the light permeable portion. The phosphor layer is located on the anode. The cathode is spaced from the anode and includes a cathode emitter. The cathode emitter includes a carbon nanotube pipe. One end of the carbon nanotube pipe has a plurality of carbon nanotube peaks.
Claims20
A field emission unit, comprising:
- an anode;
- a cathode spaced from the anode and comprising a cathode emitter, the cathode emitter comprising a carbon nanotube pipe defining a hollow axial center and comprising a first end, wherein the first end of the carbon nanotube pipe has a plurality of carbon nanotube peaks.
A pixel tube for field emission display, the pixel tube comprising:
- a sealed container having a light permeable portion and a field emission unit located therein, the field emission unit comprising:
- an anode spaced from the light permeable portion;
- a phosphor layer located on the anode;
- and
- a cathode spaced from the anode and comprising a cathode emitter, the cathode emitter comprising a carbon nanotube pipe defining a hollow axial center by a continuous circumferential wall of the carbon nanotube pipe and comprising one end defining an opening and comprising a plurality of tapered carbon nanotube bundles located around the opening.
A pixel tube for field emission display, the pixel tube comprising:
- a sealed container having a light permeable portion and a plurality of field emission units located therein, each of the plurality of field emission units comprising:
- an anode spaced from the light permeable portion;
- a phosphor layer located on the anode;
- and
- a cathode spaced from the anode and comprising a cathode emitter, the cathode emitter comprising a carbon nanotube pipe defining a hollow axial center free of structure therein and comprising one end comprising a plurality of tapered carbon nanotube bundles located around the hollow axial center of the carbon nanotube pipe and spaced from each other to form a ring shape.
Dependencies are inferred from the claim text.