Flat panel display with dual forked type side controlled cathode emission structure, and fabricating technique

Abstract

The flat panel display includes following parts: sealed vacuum cavity composed of glass faceplate of anode, glass faceplate of cathode, and glassed-in frame; anode conductive layer on the glass faceplate of anode, and phosphor layer on the anode conductive layer; the support wall structure between the glass faceplate of anode and the glass faceplate of cathode, and accessorial components for getter; lead wire layer of grid electrode, Nano carbon tube, and dual fork type cathode emission structure in side control setup on the glass faceplate of cathode. The invention enhances control function and control efficiency of grid structure, and raises efficiency and area of electron emission of cathode in Nano carbon tube. Advantages are: stable and reliable fabricating procedure, simple technique, low fabricating cost, and ordinary structure.

Description

technical field [0001] The invention belongs to the fields of flat panel display technology, microelectronic science and technology, vacuum science and technology, and nano science and technology, and relates to device fabrication of flat panel field emission displays, in particular to carbon nanotube cathodes. The device manufacturing aspect of the flat panel field emission display particularly relates to a flat panel display with a double-fork type side-controlled cathode emission structure and its manufacturing process. Background technique [0002] The carbon nanotube field emission display is a new type of flat display device, which uses carbon nanotubes as the cathode material to replace the thermal electron gun in the traditional cathode ray tube display, so that there is no delay time and the response speed is faster. The electrons emitted from the cathode of the carbon nanotube accelerate to the anode under the action of the high voltage of the anode, and bombard th...

AI Technical Summary

Problems solved by technology

Due to the constraints of the grid structure manufacturing process and manufacturing materials, these displays generally have disadvantages such as excessively high gate voltage, low brightness of the display device, and low emission efficiency of the carbon nanotube cathode. The impact of the cathode on the display image quality cannot be ignored

Since the insulating material between the grid structure and the carbon nanotube cathode structure has a certain insulation level, once the limit is exceeded, electrical breakdown will occur. Therefore, reducing the distance between the two to reduce the grid operating voltage is subject to limited to a certain extent

Since the electron beam emitted from the carbon nanotube cathode can only bombard the phosphor layer after passing through the grid structure, the emission area of ​​the carbon nanotube cathode cannot be made larger, otherwise it is easy to cause the grid to go out of control, which means that the carbon The effective electron emission area of ​​the nanotube cathode is fixed, which limits the further improvement of the display brightness of the device

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