TW201539516A - Field emitter having diamond fine particles and method for manufacturing the same, field emitter display diamond having diamond fine particles - Google Patents

Abstract

The present invention relates to a field emitter having diamond fine particles, comprising a first electrode; a substrate disposed on the first electrode; a plurality of emitters having diamond fine particles disposed on the substrate; and a second electrode disposed on the emitters having fine particles, and a charge isolating layer is inserted between the second electrode and the emitters; wherein the emitters have specific patterns, and the charge isolating layer is a vacuum environment or a gaseous environment. Therefore, field emitter having diamond fine particles of the present invention have advantages of high stability, low cost of manufacture and large areas. The present invention also relates to a manufacturing method according to the aforementioned filed emitter having diamond fine particles and field emitter display having diamond fine particles.

Description

Field emitter with diamond micropowder and manufacturing method thereof, field emission display with diamond micropowder

The invention relates to a field emitter with diamond micropowder, in particular to a field emitter with diamond micropowder formed by a diamond micropowder with a specific pattern or a field emission display with diamond micropowder.

The field emitter is one of the process technologies of illumination and display. However, the traditional use of diamond film or carbon nanotube as the electron emission source, but the former is too expensive for the field emitter, the latter is not easy to control the carbon nanotube field. The stability and mass production of the transmitter make the field emitter technology gradually replaced by liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs) in the display market. With the introduction and breakthrough of new technologies, field emitters are highly valued in the field of flat display.

The Field Emission Display (FED) is discharged by the cathode of the back substrate, and the electron emission mode is flat. The electrons illuminate the phosphor on the phosphor layer of the front plate. In the field of display technology, the field emission display retains the color performance of a cathode ray tube (CRT), and has the advantages of a flat surface and a thin shape. Therefore, it has attracted attention in the development of the display.

In general, the field-emissive display has a cathode-to-anode spacing of 0.2 to 1 micrometer (μm). In such a small space, the stability of the electron source to the phosphor surface and the vacuum of the device must be considered. Therefore, vacuum technology and fineness Processing technology and vacuum vessel manufacturing are important factors influencing field emission displays. In addition, the field emission display emits light by exciting the phosphor by electron discharge, and therefore, it is also necessary to pay attention to the problem of emission efficiency and uniformity.

In the prior art, for example, the Republic of China Patent Publication No. 200714122 discloses a diamond field emission tip and a method of manufacturing the diamond field emission tip, comprising the steps of: supplying a substrate and depositing a layer on the substrate. a diamond material having a resistive layer formed on the exposed top surface of the diamond material such that a pattern is formed in the resistive layer and etched away from the selected portion of the diamond layer to be surrounded by a sloped inner sidewall a limited opening, depositing a conductive metal in each of the openings of the diamond layer, removing a selected portion of the diamond layer such that a portion of the diamond layer remains around the deposited conductive metal, and cutting adjacent The substrate of the diamond material is made into individual diamond emitting tips. However, in this known technique, the fabrication process of the diamond field emitter is complicated, involves many semiconductor processes, and is limited by the high temperature and vacuum process of chemical vapor deposition (CVD), so that the material of the substrate is selected. Very limited, and the size of the diamond field emitter is also limited by the vacuum chamber.

In addition, another Republic of China Patent Notice No. 1238436, An emitter composition of a field emission battery is disclosed which is printed on a cathode substrate contained in a display to be applied to an electron emission source, the composition comprising a carbon nanotube, a binder, a glass A powder, a dispersant and an organic solvent, characterized by having from 0.1 to 20% by weight of diamond. Further, a method of manufacturing the emitter composition and a field emission battery using the same are also provided. Since the field emission cell has a carbon nanotube and a diamond which is simultaneously distributed therein, it has a relatively high current density even under the same driving voltage, thereby improving its emission properties. In addition, the field emission cell has advantages in terms of excellent printability and stable field emission, while reducing the various costs required to operate and repair its components. However, in this known technique, the emitter is a film as an electron source without high points or sharp points, so the starting voltage is high, and further, since the diamond or the carbon nanotube in the slurry is randomly distributed, The source and emission of electrons are difficult to control, which in turn affects the performance of the field emitter.

Therefore, in view of this, there is an urgent need to develop a field emitter with diamond micropowder and a field emission display derived therefrom, which can improve the field emission performance and stability of the field emitter with diamond micropowder, and can reduce the production cost. And provide large size field emitters or field emission displays.

The main object of the present invention is to provide a field emitter with diamond micropowder. Since the field emitter of the diamond micropowder is used as an emission source by a separate emitter of diamond micropowder, the electron is easily emitted from the diamond powder. The cusp of the body is emitted, and the source of electrons and the amount of emission can be easily controlled. Thereby, the stability of the field emitter with diamond micropowder can be improved. In addition, the diamond micronized field emitter can be fabricated on a flexible substrate and thus can be applied to flexible products. Since the flexible product has the advantages of easy space matching and integration, the product area can be greatly reduced for portability.

Another object of the present invention is to provide a method for fabricating a field emitter having a diamond micropowder, which uses a three-dimensional printing method to form an emitter containing diamond micropowder, which can reduce the manufacturing cost and can be easily fabricated into a large size. Field emitter.

Another object of the present invention is to provide a field emission display with diamond micropowder, which is formed by the above-mentioned field emitter with diamond micropowder and a manufacturing method thereof, thereby improving diamond powder. The lifetime and brightness of the field emission display.

In order to achieve the above object, the present invention provides a field emitter having a diamond micropowder, comprising: a first electrode; a substrate disposed on the first electrode; and a plurality of emitters having diamond micropowder, the diamonds The emitter of the micropowder is disposed on the substrate; and a second electrode is disposed above the emitters of the diamond micropowder, and a charge is interposed between the second electrode and the emitters of the diamond micropowder The insulating layer has a specific pattern, and the charge isolating layer can be a vacuum environment or a gas environment, wherein the gas environment can include hydrogen, nitrogen or other inert gas. Further, unlike the emitter of the continuous structure formed by the conventional chemical vapor deposition method or the printing coating method, in the field emitter of the present invention having the diamond fine powder, since the emitters of the diamond fine powder are mutually mutual Independent protruding structure, therefore, will make electrons more easily generated by the sharp points of each emitter Shoot out to reduce the mutual interference of adjacent emitters, thus providing better and more stable electron emission performance.

In the field emitter of the diamond micropowder of the present invention, the composition of the diamond micropowder emitter may include diamond micropowder and a binder. First, the diamond micropowder and the binder are premixed into a mixture, and then the three-dimensional column is used. The printing method forms the emitters of the diamond fine powder on the substrate. Alternatively, the bonding agent and the diamond micropowder are respectively formed on the substrate by three-dimensional printing or other means.

In the field emitter of the diamond powder of the present invention, the particle size of the diamond powder may be arbitrarily changed according to the user's demand or the characteristics of the hairdresser, wherein the diamond powder may have a particle diameter of from 1 nm to 1,000 μm; In one aspect of the invention, the diamond micropowder may have a particle size of from 10 nanometers to 500 micrometers; in another aspect of the invention, the diamond micropowder may have a particle size of from 100 nanometers to 10 micrometers. In addition, in the field emitter of the present invention having the diamond micropowder, the particle size distribution of the diamond micropowder may be arbitrarily changed according to the user's demand or the characteristics of the field generator, wherein the diamond micropowder has a certain range of particle size distribution. For example, a diamond having a particle diameter of 100 nm to 1 μm accounts for 90% of the total number of diamond fine powders, and the present invention is not limited thereto.

In the field emitter of the diamond micropowder of the present invention, the component of the bonding agent can be arbitrarily changed according to user requirements or a three-dimensional printing device, wherein the bonding agent can be at least one selected from the group consisting of polymer resin and ceramic material. a group consisting of a metal material, or a combination thereof; wherein the polymer resin is an epoxy resin, a polyacrylic resin, a polyamide resin, a polyimide resin, a phenol resin, or a combination thereof, and the present invention does not Limited to this. In one aspect of the invention The binder is a polymer resin; in another aspect of the invention, the binder is an epoxy resin.

In the field emitter of the diamond micropowder of the present invention, the diamond powder-containing emitters may further comprise any medium, carrier, or various additives according to user requirements or field hair characteristics, in one of the present inventions. In the aspect, the diamond fine powder emitter may further include a conductive metal, graphite, graphene, ceramic powder, or nano diamond, and the invention is not limited thereto.

In the field emitter of the diamond micropowder of the present invention, the specific pattern may be arbitrarily changed according to user requirements or field emission characteristics, wherein the specific pattern may be a conical shape, a polygonal extraverticular type, a cylindrical outer shape, or a polygonal column shape; in one aspect of the invention, the specific pattern may be a conical shape; in another aspect of the invention, the specific pattern may be a polygonal extra-vertebral shape, for example, a triangular pyramid shape, The quadrangular pyramid shape, or a similar appearance thereof; in still another aspect of the invention, the specific pattern may be a cylindrical shape, and the invention is not limited thereto. In addition, unlike the planar structure or the two-dimensional structure formed by the conventional printing and coating method, in the field emitter of the present invention having the diamond fine powder, the specific pattern can be formed by various three-dimensional printing methods, wherein The particular pattern can be formed by three-dimensional printing, and the three-dimensional printing method can be stacked by layer-by-layer stacking to form a desired desired shape.

In the field emitter of the diamond micropowder of the present invention, the arrangement of the diamond powder-containing emitters may be arbitrarily changed according to user requirements or field emission characteristics, wherein the distribution of the diamond powder-containing emitters may be The present invention is not limited to this, which is an array of equally spaced or non-equally spaced arrays or non-array arrays. In one aspect of the invention, the emitters of the diamond micropowder The distribution can be arranged in an array of equally spaced. In another aspect of the invention, the distribution of the diamond powder-containing emitters may be in an array of equal non-pitch arrays. In still another aspect of the invention, the distribution of the diamond powder-containing emitters may be a non-equidistant non-array arrangement. Furthermore, in the field emitter of the present invention, the first electrode may be a cathode, and the second electrode may be an anode, whereby the electrons may be made of each diamond powder located on one side of the first electrode. The cusp of the emitter is emitted toward the second electrode on the other side.

The present invention provides a method for fabricating a field emitter having a diamond micropowder, comprising: providing a substrate having a first electrode under the substrate; and providing a plurality of emitters with diamond micropowder, which are made by three-dimensional printing Mixing the substrate to form the diamond powder-containing emitter; and providing a second electrode formed on the diamond powder-containing emitter, and the second electrode and the diamond powder A charge isolation layer is interposed between the emitters; wherein the diamond powder-containing emitters have a specific pattern, and the charge isolation layer is a vacuum environment.

The present invention provides a method for fabricating a field emitter having a diamond micropowder, comprising: providing a substrate having a first electrode under the substrate; providing a bonding agent on the first electrode; and providing a diamond micropowder to the bonding agent In order to form a plurality of emitters with diamond micropowder, which can be used in a three-dimensional printing method, a solder ball manufacturing method or a combination thereof, any method known in the art can be used, such as mixing a substrate on the substrate. Forming the emitters with the diamond micropowder, or respectively, using the three-dimensional printing method of the bonding agent and the diamond micropowder to form an electron field emitter, or forming the bonding agent into an emitter by using a solder ball, and then using the three-dimensional column Printed or printed diamond dust cloth Arranging on the emitter to form an electron field emitter; and providing a second electrode formed on the diamond powder-containing emitter, and the second electrode and the diamond-like powder emission A charge isolation layer is interposed between the bodies; wherein the diamond powder-containing emitters have a specific pattern, and the charge isolation layer is a vacuum environment.

In the method for producing a field micro-powder of the present invention, the mixture may contain a diamond micropowder and a binder, and the mixture may be a liquid slurry or a solid powder; in one aspect of the invention, The compound can be a liquid slurry and the mixture can be formed on the substrate by three-dimensional printing to form the diamond powder-containing emitters. In the method for fabricating the field micro-powder of the present invention, the specific pattern can be arbitrarily changed according to user requirements or field emission characteristics, and the specific pattern can be a conical shape, a polygonal outer shape, a cylindrical outer shape, Or a polygonal column shape; in one aspect of the invention, the specific pattern may be a conical shape; in one aspect of the invention, the specific pattern may be a polygonal extraverticular type, for example, a triangular pyramid shape, The quadrangular pyramid shape, or a similar appearance thereof; in still another aspect of the invention, the specific pattern may be a cylindrical shape, and the invention is not limited thereto.

Furthermore, the present invention provides a field emission display having a diamond micropowder comprising: a conductive substrate; a plurality of emitters having diamond micropowder, which may be those having the diamond micropowder as described above, the diamond powder The emitter is disposed on the conductive substrate, and the emitter is separated by the gate by a gate; the glass substrate is located on the emitter of the diamond powder, and the bottom of the glass substrate has a phosphor layer, and a spacer layer is interposed between the glass substrate and the diamond powder-containing emitters; and a transparent conductive film disposed on the glass substrate, or the transparent conductive film is disposed on the glass substrate A transparent conductive film is interposed between the glass substrate and the phosphor layer.

In the field emission display with diamond micropowder of the present invention, the material of the conductive substrate and the glass substrate can be arbitrarily changed according to user requirements or field emission characteristics, and the material of the conductive substrate and the glass substrate can be hard material or flexible. Material, for example, metal plate, plastic substrate with metal film, polyethylene terephthalate (PET) film or polymethyl methacrylate (PMMA) film; in one aspect of the invention, conductive substrate In another aspect of the invention, the conductive substrate and the glass substrate may be made of a polyethylene terephthalate film, but the invention is not limited thereto.

In the field emission display with diamond fine powder of the present invention, the spacer layer may be a vacuum environment or a gas environment, wherein the gas environment may comprise hydrogen, nitrogen or other inert gas. In one aspect of the invention, the spacer layer can be a vacuum environment. In addition, in the field emission display with diamond micropowder of the present invention, the composition of the phosphor powder layer may be arbitrarily changed according to user requirements or field emission characteristics, wherein the phosphor powder layer may include red phosphor powder, Blue phosphor powder, or green phosphor powder, or a combination thereof. In another aspect, in the field emission display with diamond fine powder of the present invention, the conductive substrate may be a cathode, and the transparent conductive film is an anode, whereby the electrons may be made of each diamond fine powder located on one side of the conductive substrate. The cusp of the emitter is emitted toward the glass substrate on the other side.

In summary, the field emitter of the present invention has a diamond micropowder emitter as a source of emission, which makes electrons more easily emitted by the cusps of each emitter, reducing adjacent emissions. The mutual interference problem of the body, in turn, provides better and more stable electron emission performance. In addition, The field emitter of the diamond micropowder of the present invention can be fabricated on a flexible substrate and applied to various flexible products or devices. Secondly, the method for fabricating the field micro-powder of the present invention can reduce the manufacturing cost and can be fabricated into a large-sized field emitter or field emission display.

10,20‧‧‧substrate

11, 21‧‧‧ first electrode

12,221,222,223,42‧‧‧emitters with diamond powder

13‧‧‧second electrode

14‧‧‧Charge isolation layer

40‧‧‧Electrically conductive substrate

43‧‧‧Transparent conductive film

15,44‧‧‧ glass substrate

16,45‧‧‧Fluorescent powder layer

46‧‧‧ spacer

47‧‧‧ gate

1A to 1C are schematic views showing a field emitter of a diamond fine powder according to Embodiment 1 of the present invention.

Figure 1D is a schematic illustration of a field emitter of diamond micropowder in accordance with Example 2 of the present invention.

2A to 2C are schematic views showing the emitter of the diamond fine powder of Examples 2 to 4 of the present invention.

Figure 3 is a flow chart showing the fabrication of a field emitter with diamond micropowder according to the present invention.

4A is a schematic view of a field emission display with diamond fine powder according to Embodiment 5 of the present invention.

Fig. 4B is a schematic view showing a field emission display of diamond fine powder according to Embodiment 6 of the present invention.

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can readily appreciate the other advantages and advantages of the present invention. In addition, the present invention may be embodied or applied by various other specific embodiments without departing from the spirit of the invention. Modifications and changes.

Example 1

Please refer to FIG. 1A to FIG. 1C , which are schematic diagrams of a field emitter with diamond micropowder according to Embodiment 1 of the present invention, and FIG. 3 together with a flow chart of a field emitter of the present invention. . First, the diamond micropowder and the epoxy resin binder are uniformly mixed to form a mixture (not shown). Referring to FIG. 1A, a substrate 10 and a first electrode 11 are provided. The substrate 10 is disposed on the substrate. On the first electrode 11; then, the mixture is printed on the substrate 10 by three-dimensional printing to form a plurality of diamond emitters 12 having a specific pattern, as shown in FIG. 1B, the diamond of the embodiment 1 The specific pattern of the emitter 12 is a polygonal pyramid shape (for example, a triangular pyramid shape), and the arrangement of the diamond micropowder emitters 12 is arranged in an array of equal intervals; then, as shown in FIG. 1C A second electrode 13 is disposed above the emitters 12 of the diamond micropowder, and a vacuum environment is interposed between the second electrode 13 and the diamond micropowder emitters 12 The charge isolation layer 14; finally, a voltage is applied to cause electrons to be emitted from the tip end of the emitter 12 having the diamond fine powder toward the second electrode 13.

Example 2

1D is a schematic diagram of a field emitter having a diamond micropowder according to Embodiment 1 of the present invention, and a method and an embodiment for forming a field emission display with diamond micropowder according to Embodiment 2 of the present invention. 1 is substantially the same, except that the diamond micropowder emission system of Example 1 premixes the diamond micropowder with the binder into a mixture, and then uses three The diamond printing method forms the emitters of the diamond micropowder on the substrate, and the emission systems of the diamond micropowder of the embodiment 2 form the bonding agent into the emitter by using the solder ball, and then use the three-dimensional printing method. Diamond micropowder is disposed on the emitter to form an electron field emitter. Referring to FIG. 1D, a substrate 10 and a first electrode 11 are provided. The substrate 10 is disposed on the first electrode 11. Then, the bonding agent is formed into an emitter by using a solder ball, and then the three-dimensional printing method is used. Arranging the diamond micropowder on the emitter to form a plurality of emitters 12 with diamond micropowder, and the arrays of the diamond micropowders 12 are arranged in an equally spaced array; then, providing a second electrode 13, a glass substrate 15 and a phosphor layer 16, the second electrode 13 is located above the diamond micropowder emitter 12, and the second electrode 13 and the diamond micropowder emitter 12 are sandwiched between A charge isolation layer 14 is provided in a vacuum environment; finally, a voltage is applied to cause electrons to be emitted from the emitter 12 having the diamond fine powder toward the second electrode 13.

Example 3~5

The diamond powdery field emitters of Embodiments 3 to 5 of the present invention are formed in substantially the same manner as in Embodiment 1, except that the diamond micropowder emitters of Embodiment 1 have a specific pattern of polygonal pyramids. The outer shape, and the emitters of the examples 3 to 5 with the fine powder of diamond have various specific pattern appearances. Please refer to FIG. 2A to FIG. 2C , which are schematic diagrams of the emitters of the diamond micropowder according to the embodiments 2 to 4 of the present invention.

As shown in FIG. 2A, the plurality of diamond powder-containing emitters 221 of Embodiment 2 have a specific pattern of a conical shape, and the diamond micro- The powder emitters 221 are arranged on the substrate 20 and the first electrode 21 by an array of equal intervals. As shown in FIG. 2B, the plurality of diamond powder-containing emitters 222 of the third embodiment of the present invention have a specific pattern of a polygonal column shape (for example, a quadrangular prism shape), and the diamond powder-containing emitters 222 The substrate 20 and the first electrode 21 are arranged by an array of equal intervals. As shown in FIG. 2C, the plurality of diamond fine powder emitters 223 of the fourth embodiment of the present invention have a specific pattern of a cylindrical shape, and the diamond fine powder emitters 223 are arranged on the substrate by an array of equal intervals. 20 and the first electrode 21.

Example 6

Please refer to FIG. 4A, which is a schematic diagram of a field emission display with diamond fine powder according to Embodiment 6 of the present invention. First, a conductive substrate 40 is provided, and the diamond micropowder and the epoxy resin binder are uniformly mixed and arranged into a mixture (not shown), and the mixture is printed on the conductive substrate 40 in a three-dimensional printing manner. To form a plurality of emitters 42 with diamond micropowder, and to separate the micro-powder-emitting emitters 42 by a gate 47; then, to provide a glass substrate 44, the glass substrate 44 is located in the diamond powder a phosphor layer 45 is disposed on the bottom of the glass substrate 44, and a spacer layer 46 is interposed between the glass substrate 44 and the diamond-like powder emitters 42. The light powder layer 45 may respectively include red light phosphor powder, blue light phosphor powder, and green light phosphor powder for controlling the color formed by the field emission display having the diamond fine powder; then, the glass substrate 44 and the firefly A transparent conductive film 43 is interposed between the powder layers 45. Finally, each of the light-emitting areas exhibits a desired color by the user by controlling the electron intensity of the emitter 42 of each diamond fine powder.

Example 7

Referring to FIG. 4B, it is a schematic diagram of a field emission display with diamond fine powder according to Embodiment 7 of the present invention. The field emission display with diamond fine powder of Embodiment 7 of the present invention is formed in substantially the same manner as Embodiment 6, and the difference is the same. The transparent conductive film 43 of the sixth embodiment is interposed between the glass substrate 44 and the phosphor powder layer 45, and the transparent conductive film 43 of the seventh embodiment is provided on the glass substrate 44.

As described above, the field micro-powder with the micro-powder of the present invention can be used in illumination, display or other backlight applications, compared to the conventional diamond film as a field emitter and a carbon nanotube field emitter. Field emitters with diamond micropowder and field emission displays with diamond micropowder have excellent stability and offer a large number of large and large-scale production advantages. Moreover, the field emitter of the present invention or the field emission display with diamond micropowder is formed by three-dimensional printing to form an emitter containing diamond micropowder, compared to the conventional printing process of planar printing. The diamond micro-powder field emitter and the field emission display with the diamond micropowder of the invention have the advantages of simple process and low production cost, and further, compared with the diamond film or other two-dimensional structure, the invention has the same The emitter of the diamond micropowder is used as a source of emission by a separate emitter of diamond micropowder, thus making it easier for electrons to be emitted from the tip of the electron emitter without any other process. In addition, the field emitter of the present invention may also be fabricated on a flexible substrate to form a flexible field emission display, or various flexible light-emitting devices and display devices, and thus, the diamond powder of the present invention Field emission display devices can be more widely used in lighting or display In the field of displays, it has more market value.

The above-mentioned embodiments are merely examples for convenience of description, and the scope of the claims is intended to be limited to the above embodiments.

10‧‧‧Substrate

11‧‧‧First electrode

12‧‧‧ emitters with diamond micropowder

13‧‧‧second electrode

14‧‧‧Charge isolation layer

Claims (20)

A field emitter with a diamond micropowder, comprising: a first electrode; a substrate disposed on the first electrode; a plurality of emitters with diamond micropowder, the emission system of the diamond micropowder being located on the substrate And a second electrode, the second electrode is disposed above the emitter of the diamond powder, and a charge isolation layer is interposed between the second electrode and the emitters of the diamond powder; The diamond powder-containing emitters have a specific pattern, and the charge isolation layer is a vacuum environment or a gas environment. The field emitter of the diamond micropowder according to claim 1, wherein the composition of the diamond micropowder is a diamond micropowder and a binder. The field emitter of the diamond micropowder according to claim 2, wherein the diamond micropowder and the binder are mixed, or the binder is first applied to the first electrode, and then the diamond powder is It is disposed on the bonding agent. The field emitter of the diamond micropowder according to claim 2, wherein the diamond micropowder has a particle diameter of from 1 nm to 1,000 μm. The field emitter of the diamond micropowder according to claim 2, wherein the diamond micropowder has a certain range of particle size distribution. The field emitter of the diamond micropowder according to claim 2, wherein the binder is at least one selected from the group consisting of a polymer resin, a ceramic material, a metal material, or a combination thereof. The field emitter of the diamond micropowder according to claim 6, wherein the polymer resin is an epoxy resin, a polyacrylic resin, a polyamide resin, a polyamidamine resin, a phenol resin, or a combination thereof. The field emitter of the diamond micropowder according to claim 1, wherein the diamond powder-containing emitter further comprises a conductive metal, graphite, graphene, ceramic powder, or nano diamond. The field emitter of the diamond micropowder according to claim 1, wherein the specific pattern is a conical outer shape, a polygonal outer shape, a cylindrical outer shape, or a polygonal outer shape. The field emitter of the diamond micropowder according to claim 9, wherein the specific pattern is formed by three-dimensional printing. The field emitter of the diamond micropowder according to claim 1, wherein the emission systems of the diamond micropowder are arranged in an array of equal intervals. A field emitter having a diamond micropowder according to claim 1, wherein the first electrode is a cathode and the second electrode is an anode. A method for fabricating a field emitter with a diamond micropowder, comprising: providing a substrate having a first electrode under the substrate; providing a plurality of emitters with diamond micropowder, using a three-dimensional printing method, a solder ball manufacturing method or The method is such that a mixture of the diamond micropowder is formed on the substrate, or the bonding agent and the diamond micropowder are respectively formed by three-dimensional printing, solder ball production or a combination thereof to form an emitter; And a second electrode is formed on the diamond powder-containing emitters, and a charge isolation layer is interposed between the second electrode and the diamond powder-containing emitters; Wherein, the diamond powder-containing emitters have a specific pattern, and the charge isolation layer is a vacuum environment. The method for producing a field emitter having a diamond micropowder according to claim 13, wherein the compound contains diamond fine powder and a binder. The method for producing a field emitter having a diamond fine powder according to claim 13, wherein the mixture is a liquid slurry or a solid powder. The method for fabricating a field emitter having a diamond micropowder according to claim 13 or 14, wherein the specific pattern is a conical outer shape, a polygonal outer shape, a cylindrical outer shape, or a polygonal outer shape. A field emission display having a diamond micropowder, comprising: a conductive substrate; a plurality of emitters having a diamond micropowder, the emitters of the diamond micropowder according to any one of claims 1 to 12, The emission system of the diamond micropowder is disposed on the conductive substrate, and the emitters with the diamond micropowder are separated by a gate; a glass substrate is disposed on the emitters of the diamond micropowder a phosphor layer is disposed on the bottom of the glass substrate, and a spacer layer is interposed between the glass substrate and the diamond powder-containing emitters; and a transparent conductive film is disposed on the glass substrate. The transparent conductive film is interposed between the glass substrate and the phosphor layer. The field emission display of the diamond micropowder according to claim 17, wherein the spacer layer is a vacuum environment or a gas environment. The field emission display with diamond micropowder according to claim 18, wherein the phosphor layer comprises red phosphor powder, blue phosphor powder, or green phosphor powder. The field emission display with diamond micropowder according to claim 18, wherein the conductive substrate is a cathode, and the transparent conductive film is an anode.