Abstract: A method of fabricating a composite field emission source is provided. A first stage of film-forming process is performed by using RF magnetron sputtering, so as to form a nano structure film on a substrate, in which the nano structure film is a petal-shaped structure composed of a plurality of nano graphite walls. Afterward, a second stage of film-forming process is performed for increasing carbon accumulation amount on the nano structure film and thereby growing a plurality of nano coral-shaped structures on the petal-shaped structure. Therefore, the composite field emission source with high strength and nano coral-shaped structures can be obtained, whereby improving the effect and life of electric field emission.

Abstract: A method of electrophoretic deposition includes: providing an electrophoresis tank, an anode substrate, and a cathode substrate; disposing the anode substrate and the cathode substrate oppositely in the electrophoresis tank; adjusting relative positions of the cathode substrate and the anode substrate for varying each of the distances between corresponding regions on the cathode substrate and the anode substrate; and inputting cathode voltage and anode voltage respectively to a cathode electrode of the cathode substrate and a anode electrode of the anode substrate for performing the electrophoretic deposition.

Abstract: A method of fabricating a composite field emission source is provided. A first stage of film-forming process is performed by using RF magnetron sputtering, so as to form a nano structure film on a substrate, in which the nano structure film is a petal-like structure composed of a plurality of nano graphite walls. Afterward, a second stage of film-forming process is performed for increasing carbon accumulation amount on the nano structure film and thereby growing a plurality of nano coral-like structures on the petal-like structure. Therefore, the composite field emission source with high strength and nano coral-like structures can be obtained, whereby improving the effect and life of electric field emission.

Abstract: A method of fabricating a composite field emission source is provided. A first stage of film-forming process is performed by using RF magnetron sputtering, so as to form a nano structure film on a substrate, in which the nano structure film is a petal-like structure composed of a plurality of nano graphite walls. Afterward, a second stage of film-forming process is performed for increasing carbon accumulation amount on the nano structure film. Therefore, the composite field emission source with high strength and nano coral-like structures can be obtained, whereby improving the effect and life of electric field emission.

Abstract: A field emission cathode plate is disclosed, which includes: a substrate; a cathode layer, disposed on the substrate; a conductive layer with an arc surface or a resistor layer with an opening and resistivity larger than that of the cathode layer, disposed on the cathode layer; and a cambered field emission layer, having an arc surface and disposed on the conductive layer or on the cathode layer in the opening of the resistor layer and covering the resistor layer around the opening. The present invention also provides a method for fabricating the above-mentioned field emission cathode plate. The method can provide field emission cathode plate achieving uniform field emission and does not involve high resolution and cost.

Abstract: A field emission cathode plate is disclosed, which includes: a substrate; a cathode layer, disposed on the substrate; a conductive layer with an arc surface or a resistor layer with an opening and resistivity larger than that of the cathode layer, disposed on the cathode layer; and a cambered field emission layer, having an arc surface and disposed on the conductive layer or on the cathode layer in the opening of the resistor layer and covering the resistor layer around the opening. The present invention also provides a method for fabricating the above-mentioned field emission cathode plate. The method can provide field emission cathode plate achieving uniform field emission and does not involve high resolution and cost.

Abstract: Disclosed is a method of fabricating carbon nanotubes and carbon nano particles, the method comprising: providing a plurality of carbon micro carriers on a silicon substrate; forming a plurality of carbon nano particles on the carbon micro carrier by a first gas; and reacting with a second gas to provide a plurality of carbon nanotubes. Thus the carbon nanotube can be formed without the use of a metal catalyst. The carbon nanotubes can easily separate from each other without the problem of non-uniformity, because the carbon micro carrier used is in a microscale size.

Abstract: A method of fabricating a composite field emission source is provided. A first stage of film-forming process is performed by using RF magnetron sputtering, so as to form a nano structure film on a substrate, in which the nano structure film is a petal-like structure composed of a plurality of nano graphite walls. Afterward, a second stage of film-forming process is performed for increasing carbon accumulation amount on the nano structure film. Therefore, the composite field emission source with high strength and nano coral-like structures can be obtained, whereby improving the effect and life of electric field emission.

Abstract: Disclosed is a method of fabricating carbon nanotubes and carbon nano particles, the method comprising: providing a plurality of carbon micro carriers on a silicon substrate; forming a plurality of carbon nano particles on the carbon micro carrier by a first gas; and reacting with a second gas to provide a plurality of carbon nanotubes. Thus the carbon nanotube can be formed without the use of a metal catalyst. The carbon nanotubes can easily separate from each other without the problem of non-uniformity, because the carbon micro carrier used is in a microscale size.

Abstract: The present invention relates to a field emission display device, especially to a field emission display device with a lower gate field emission structure. The field emission display device includes an upper substrate, a lower substrate, an anode layer, a plurality of gate layers, an insulation layer covering on the surface of the upper substrate and the gate layers, a plurality of cathode layers formed on the surface of the insulation layer, and a plurality of field emitter layers formed on the surface of the cathode layers. Moreover, the anode layer is formed on the surface of the upper substrate corresponding to the surface of the lower substrate. The gate layers are formed on the surface of the lower substrate corresponding to the surface of the upper substrate. The cathode layers are interlaced with the gate layers, but without conducting to the gate layers.

Abstract: An electron emission source and a field emission display device are disclosed. The electron emission source includes a substrate and an electron emission layer formed on the substrate. The electron emission layer includes a composition of diamond-like carbon (DLC) film structures. The height of the DLC flakes is in micrometer scale, and the thickness of the DLC flakes is in nanometer scale. Hence, the aspect ratio of the DLC film structures is high. Therefore, the DLC film can be used as a good electron emission source. A conductive layer can be optionally deposited on the surface of the substrate for further enhancing DLC film in electron emission.

Abstract: An electron emission source and a field emission device using the same. The diamond-like carbon (DLC) film used as the electron emission source is featured by its film structures formed on the substrate surface arranged in a petal pattern. The height of the DLC flake is in micro scale and the thickness of the flake is in nano scale. The disclosed DLC flake film has a high aspect ratio. Hence, the DLC film has a good enhancing factor favorable for field emission, acting as a good electron-emitting source. In addition, the electron-emitting source material disclosed can be applied in a field emission display to act as a stable electron-emitting source.

Abstract: A method for manufacturing diamond-like carbon (DLC) film is disclosed. The method mainly includes steps of: (a) fixing a substrate in a reaction chamber; (b) pumping the pressure of the reaction chamber below 10?6 torr; (c) introducing at least a carbon-containing gas into the reaction chamber; and (d) depositing a diamond-like carbon film on the substrate by sputtering a graphite target. The deposited DLC film is in a shape of flakes. The appearance of the deposited DLC film on the surface of the substrate is in a rose-like shape. Moreover, the height of the deposited DLC film is of micrometer level, and the thickness of the deposited DLC film is of nanometer level. Since the aspect ratio of the deposited flake-shaped DLC film is high, the deposited DLC film can enhance the field emission.

Abstract: A field emission device (FED) includes a top substrate having a fluorescent layer and an anode electrode, a bottom substrate, at least one cathode electrode having a platform and at least one protrusion, an insulating layer having an opening-pattern or groove-pattern, at least one gate layer located on the insulating layer, and an electron emitter located on the protrusion of the cathode electrode, where the electron emitter can act as side emission of electrons. Each of the platform and the protrusion have a height different from each other, and that the protrusion is located in the opening of the insulating layer. Through the structure illustrated above, uniformity of emitting electron density can be improved and brightness and contrast of color for the FED can be enhanced.