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

Abstract

The invention relates to a double-fork type side-controlled cathode emission flat-panel display and its manufacturing process, including a sealed vacuum chamber composed of an anode glass panel, a cathode glass panel and surrounding glass frames; an anode set on the anode glass panel A conductive layer and a phosphor layer prepared on the anode conductive layer; a support wall structure and an accessory component of a getter between the anode glass panel and the cathode glass panel; a grid lead layer, carbon nanotubes and Bifurcated side-controlled cathode emission structure; it can further enhance the control function and control efficiency of the gate structure, improve the electron emission area and emission efficiency of the carbon nanotube cathode, and has the advantages of stable and reliable manufacturing process, simple manufacturing process, low manufacturing cost, and structural The advantage of simplicity.

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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