JP2001101987A - Luminous device, method of luminescence, and method for fabricating gate electrode - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminous device that saves power with high efficiency, using the characteristics of carbon nano tubes that can emit electron under low electric fields and which may be incorporated into a display panel for displaying static characters, picture of dynamic images, and moving pictures. SOLUTION: By using electric fields applied to the gate electrode 16 and carbon nano tube 18 so that the carbon nano tube 18 emits electrons which collide against the positive fluorescent powders 12 by means of positive high voltages and the light radiates. The semiconductor switch of the device is controlled by the potential formed under the carbon. High-resolution luminous device is achieved by a triode structure of mutually insulated and double-layer gate electrodes. One layer of the gate electrode provides the electric field that emits electrons, while the other layer of the gate electrode being the gate electrode perpendicular to the conductive layer so that it determines whether electrons are passed by or not. This structure realizes a power saving high efficiency and high-resolution luminous device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a light emitting device, and more particularly, to a light emitting device having a carbon nanotube electron emission source.

[0002]

2. Description of the Related Art High-brightness, power-saving displays are applied to mechanisms for transmitting information, for example, counters for large sports fields, electronic display signs for public places, road signs on highways, road condition displays, and the like. The application is extremely vast. The display screen applied to this large playground is a combination of a number of small light-emitting elements, and currently produced with these small light-emitting elements, for example, incandescent lamps, small cathode ray tubes (CRT), high-pressure vacuum Fluorescent tube (High Vol
tage Vacuum Fluorescent Display (HVVFD), small fluorescent lamp, light emitting diode, and the like.

An incandescent light bulb is based on the principle of heating a lamp wire in a light bulb to emit light, and the temperature of the lamp wire (tungsten material) in the light bulb must be maintained at 900 to 1500 ° C. during light emission. for,
Display signs combined with incandescent light bulbs consume a great deal of electricity, have very low energy efficiency,
Incandescent light bulbs can only emit yellowish white light. Therefore, it has been considered that it is extremely difficult to assemble a color display signboard.

The cathode ray tube system utilizes the fact that an electron beam collides with a fluorescent powder to emit light. This type of light emitting method has a very high luminous efficiency, and is theoretically a CR.
The energy efficiency of T should be very high, but CRT
The source of the electrons in is obtained by heating a hot cathode made by applying an oxide (barium oxide) that easily emits electrons to the metal surface, so when the hot cathode is heated,
Although these oxides can emit thermoelectrons, the electron gun for generating electrons is a point electron source, so when trying to obtain a high electron density, the temperature of the electron gun is raised, that is, the current of the electron gun is increased. For this reason, in a display element having a main function of high luminance, if the current of the electron gun is improved, the life of the electron gun itself, that is, the life of the electron gun is shortened, and the energy consumption increases. I will. On the other hand, CRT
Since it itself has the disadvantages of being large in volume, being thick and heavy, there is a limitation in assembling a large display signboard, and a display screen for displaying a fine screen cannot be assembled. In addition, a display screen assembled with a small CRT consumes a large amount of electricity.
Energy consumption of 2000k for mx 40m display signboard
w, and although it is only 1/10 of an incandescent light bulb,
Due to the limitation of the point electron light source, the high luminous efficiency characteristics of the fluorescent powder cannot be exhibited.

A high-pressure vacuum fluorescent tube (HVVFD) is a CRT.
Is a point electron source improved to a line electron source. The linear electron source is a thin tungsten wire coated with an oxide that easily emits electrons. The linear electron source emits a large number of thermal electrons and collides with the fluorescent powder to emit light. The disadvantage of energy consumption can be improved. In addition, HVVFD can apply three primary colors of red, blue and green to one light emitting element, so that a color display screen can be combined with HVVFD more easily than CRT and resolution is higher than CRT.

However, despite the fact that display screens assembled by HVVFD are superior in characteristics and energy consumption to screens combined by small CRTs, they are difficult to manufacture due to the complex structure of HVVFD. Also, a large amount of energy is consumed to excite thermoelectrons by heating with a tungsten wire. For example, a display screen of 25 m × 40 m size combined with HVVFD at present consumes up to 1,000 kW of electric energy.

[0007] A small fluorescent lamp manufactured to excite fluorescent powder by ultraviolet light to emit light can also assemble a display screen. However, the fluorescent lamp elements currently used cannot be diversified due to being restricted to a complexion color. Since it is difficult to reduce the size of each fluorescent lamp to 1 line / mm or less, it is very difficult to form a detailed screen. Non-fluorescent light emitting diodes (LEDs) are also widely applied to large display screens. At present, materials that respectively emit the three primary colors of red, blue, and green have been developed. However, it is difficult to manufacture high-luminance green and blue materials, and the luminous efficiency of the fluorescent powder is 30%.
Compared to (lm / w), the luminous efficiency of the LED does not reach 10 (1 m / w), and in addition, the LED has a severe viewing angle problem, causing a defect in use on a large screen.

That is, the conventional light emitting device has the following disadvantages. (1) The efficiency is not high. It cannot be used for large screens because its luminous efficiency is too low. (2) Energy consumption is large due to the light emitting characteristics of the light emitting element. (3) The resolution is low, and it is difficult to form a detailed screen due to the arrangement of the light emitting elements and the complexion.

The present invention provides an improved light-emitting device for overcoming the above-mentioned conventional drawbacks. The present invention provides a systematic analysis of the advantages and disadvantages of existing devices and introduces new materials and new structures to achieve high brightness. The gist of the present invention is to devise a display device having high resolution and to combine these devices with a large electronic signboard capable of transmitting static character information and dynamic character information.

As a result of analyzing the current light emitting device, the present inventors have found that the efficiency of emitting light by colliding electrons with the fluorescent lamp powder is higher than other light emitting technologies. Therefore, the small CRT and HVVFD have higher luminous efficiency than light emitting elements such as incandescent lamps and light emitting diodes. However, the method of generating thermoelectrons by the heating method in the small CRT and HVVFD element is a main cause of energy consumption, and this energy is consumed. It has been found that electron emission cold cathodes are the most preferred choice for reducing wear.

In 1995, Lindsler described "A simple and
robust electron beam source from carbon nonotub
e ”by Philip G Collins and A zettl. Appl. Phys. Le
tt. 69 (13) 1996, announced that carbon nanotubes composed of carbon materials have the property of emitting electrons. Subsequently, in 1997, the kings and others also added “Field Emission from nanotubes bindle emitters
at low field ”by QHWang, TDCorrigan, JYDai a
nd RPH Chang, ARKrauss. Appl. Phys. Lett. 70
(24), 1997, carbon nanotubes are. It has been announced that a large amount of electrons are emitted under a low electric field of 0.8 V / μm. Therefore, by combining the property of emitting electrons when the carbon nanotube is under a low electric field with the highly efficient light emitting property of the fluorescent powder, a light emitting device with high brightness, energy saving and high precision can be manufactured. An electronic signboard that displays static character information and dynamic character information can be manufactured in combination with a display screen capable of displaying a single color or a color using such a light emitting element.

It is an object of the present invention to provide a light emitting device that emits electrons by using an electron emission source of carbon nanotubes and collides with a fluorescent powder to emit light, based on the above findings.

According to the present invention, a display screen of electric power saving, single color, multicolor or full color, and high resolution is formed by utilizing the characteristics of high brightness and energy saving of the light emitting device. An object is to be applied to an electronic signboard for displaying video information.

[0014]

DISCLOSURE OF THE INVENTION A light-emitting device according to the present invention for achieving the above object is a light-emitting device that generates light by the interaction between electrons and a light-emitting substance, and has an electron emission source having carbon nanotubes and a plurality of emission points. A gate electrode that controls the gate electrode to determine a specific light-emitting point, an electron-emitting structure that generates electrons by the carbon nanotubes of the electron-emitting source, and receives the electrons, and the light-emitting substance A light emitting structure that generates light by interaction;
Is provided.

Further, in the light emitting device according to the present invention, the gate electrode has a cathode addressing ability, and thereby has a metal network structure for controlling the brightness / darkness of the specific light emitting point, and the metal network structure is a metal network. A layer and an insulating layer, wherein the electrons are generated by excitation of an electric field between the electron emission source and the gate electrode, or may be emitted by the carbon nanotube.

In the light-emitting device according to the invention, the plurality of light-emitting points are formed in an xy array, the light-emitting structure is a substrate on which the light-emitting substance is entirely coated, and the light-emitting substance is a fluorescent powder. Alternatively, the light emitting substance may be covered with an aluminum layer.

Further, a light emitting method for a light emitting device according to the present invention for achieving the above object is a light emitting method for a light emitting device which generates light by an interaction between an electron and a light emitting substance. Providing a limited gate electrode and controlling this gate electrode to determine a particular emission point; applying an electric field onto the carbon nanotubes to generate the electrons; and accelerating the electrons by accelerating the electrons. Passing through the gate electrode to generate an interaction with the luminescent material to generate light according to characteristics of the luminescent material.

In the light emitting method of the light emitting device according to the invention,
The gate electrode has an xy-axis addressing capability, thereby having a metal network structure for controlling the brightness / darkness of the specific light emitting point, the electrons are generated by the excitation of the electric field, and the luminescent material is a fluorescent powder. Wherein the interaction is an action that occurs when the electrons collide with the luminescent material.

Further, a method of manufacturing a light emitting device according to the present invention for achieving the above object is a method of manufacturing a light emitting device in which light is generated by an interaction between an electron and a light emitting substance. Forming an electron emission structure comprising a nanotube and a gate electrode defining a plurality of emission points, defining one specific emission point by controlling the gate electrode, and forming a spacing area on the electron emission structure And forming a light emitting structure in which the light emitting material is applied to the space, and emitting light when the electrons collide with the light emitting material.

In the method of manufacturing a light emitting device according to the present invention, the step of forming the electron emission structure includes the steps of: (A1) forming a substrate; (A2) forming an electron emission source on the substrate; A3) forming the gate electrode on the electron emission source. The substrate in the step (A1) is a glass substrate or a ceramic substrate, and the electron emission source in the step (A2) is The semiconductor device includes a conductive wire grown on a glass substrate and a carbon nanotube grown on the conductive wire.

Further, in the method of manufacturing a light emitting device according to the present invention, the interval area is an area for separating the electron emitting structure and the light emitting structure and is formed by a spacer. (B1) forming a light emitting layer; (B2) forming an aluminum layer;
Wherein the luminescent layer in step (B1) grows the luminescent material on a transparent substrate, wherein the luminescent material is preferably a fluorescent powder, and the aluminum layer in step (B2) comprises the luminescent material. Grow on.

A light-emitting element according to another embodiment of the present invention is a light-emitting element that generates light by an interaction between an electron and a light-emitting substance, and includes an electron-emitting source for generating the electron;
A gate that is adjacent to the electron emission source, includes a first metal layer and a first insulating layer, defines a plurality of light emitting points, and is controlled such that an address of one specific light emitting point passes through the electron. An electrode, and a light emitting structure adjacent to the gate electrode for receiving the electrons and generating light in the light emitting material.

Further, in the light emitting device according to the above invention, the gate electrode has a xy-axis addressing capability, and thereby has a metal network structure for controlling the brightness / darkness of the specific light emitting point. A first metal layer and a first insulating layer, wherein the electrons are generated by excitation of an electric field between the electron emission source and the gate electrode, and the gate electrode further connects the insulating layer to the first metal layer. Between the second
Wherein the gate electrode preferably further comprises:
A second insulating layer adjacent to the second metal layer, and a third metal layer adjacent to the second insulating layer, whereby the second insulating layer is connected to the second metal layer. It is interposed between the third metal layer.

Further, a light-emitting element according to another aspect of the present invention is a light-emitting element that generates light by interaction between electrons and a light-emitting substance, and includes an electron-emitting source for generating the electrons, and an electron-emitting source. A plurality of light emitting points adjacent thereto, and a gate electrode controlled so that an address of one specific light emitting point passes through the electron; A light-emitting structure for generating light in the substance.

A light-emitting element according to another embodiment of the present invention is a light-emitting element that generates light by an interaction between an electron and a light-emitting substance. An electron emission source whose address is controlled to emit electrons; a gate electrode adjacent to the electron emission source so that an address of a specific light emitting point can pass through the electrons; and an electron emission source adjacent to the gate electrode. And a light-emitting structure for generating light in the light-emitting substance.

In the light emitting device according to the present invention, the electron emission source generates xy-axis addressing capability by a control circuit, thereby controlling the brightness / darkness of the specific light emitting point.

According to another embodiment of the present invention, there is provided a light emitting device for generating light by interacting an electron and a light emitting substance, wherein an electron emitting source having a carbon nanotube layer and a plurality of light emitting points are limited. A gate electrode that controls the gate electrode to determine a specific light-emitting point therein, and the electrons are generated by the carbon nanotubes of the electron emission source, and the gate electrode is formed by an insulating layer and a conductive layer. An electron emission structure to be composed, a light emission structure that receives the electrons and generates light by interaction with the light emitting substance;
Is provided.

Further, there is provided a method of manufacturing a light-emitting device in which light is generated by an interaction between an electron generated by the light-emitting device body and a light-emitting substance, wherein the electron-emitting structure comprises a carbon nanotube, an insulating layer and a conductive layer. Forming the electrons by the carbon nanotubes, defining a plurality of light emitting points by the insulating layer and the conductive layer; forming a space on the electron emission structure; Forming a light emitting structure coated with the light emitting substance, and causing the electrons to collide with the light emitting substance to emit light.

In the above method for manufacturing a light emitting device,
Forming the electron emitting structure includes providing a substrate, net printing the carbon nanotube layer on the substrate, forming the insulating layer on the carbon nanotube layer, and forming the conductive layer on the carbon nanotube layer. Forming on the insulating layer, forming a protective layer on the conductive layer, and forming a limited pattern on the protective layer to expose the conductive layer to a plurality of external areas; Removing the conductive layer and the insulating layer defined by these areas, exposing the carbon nanotube layer defined by these areas to the outside, and forming the electron emission structure by removing the protective layer, Is provided.

In the above method for manufacturing an electron emission structure, the pattern is formed by a net printing method or an exposure and development method.

Also, in the method of manufacturing the electron emission structure,
The conductive layer is made of a material such as a silver paste, a nickel paste, or a platinum paste.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an element structure designed according to the present invention will be described below. Needless to say, the technical means of the present invention is not limited to these embodiments. (Example 1) Bipolar red, blue, and green light emitting devices The present invention has light emitting devices of three primary colors of red (R), blue (B), and green (G) as shown in FIG.

In FIG. 1, 13 is an upper panel, 11 is a black matrix (BM) with increased contrast, and 12 is a fluorescent powder represented by R (red), G (green), and blue (B), respectively. . An aluminum layer 14 for improving reflection is provided on the upper panel 13. A conductive line layer 19 is formed on a glass substrate 17 as a lower panel, and carbon nanotubes are mounted on the conductive lines. A net-like structure made of a porous conductor is provided as a gate electrode 16 on the carbon nanotube 18. The upper and lower panels are separated by a glass spacer 15. The whole unit structure is usually sealed in one vacuum environment like CRT and VFD.

If an electric field (ie, 0.8 V / μm) for emitting electrons by the carbon nanotube is applied between the gate electrode 16 and the carbon nanotube 18 in this structure, the electrons are emitted from the carbon nanotube. , A high voltage (for example, 500
When a voltage of 0 V is applied, the electrons emitted from the carbon nanotube 18 are transmitted through the porous gate electrode 16 under the electric field of the anode, and collide with the fluorescent powder 12 to achieve the purpose of light emission. The conductive wire layer 19 under the carbon nanotube 18 is applied to the carbon nanotube 18 by the input voltage.
To control the emission of electrons from the device to achieve the effect of the control switch. Combining these multiple units of light emitting elements of carbon nanotubes 18 achieves a large color display screen that can drive addresses.

Since the carbon nanotubes 18 emit electrons at a low voltage, the disadvantage of energy consumption due to thermal electrons in CRTs and HVVFDs can be greatly reduced.
Further, since one unit can have three primary colors such as red, blue, and green at the same time, it can be combined with an energy-saving light-emitting element, and a full-color electronic signboard can be realized. (Embodiment 2) FIG. 2 is a diagram showing another structure of a light emitting device having carbon nanotubes 18 by two-dimensional control of xy.

In this structure, the gate electrode 16 is designed as shown in FIG. In the structure of the gate electrode 16 in the enlarged view, a first metal layer 221 and a second metal layer 222 are formed on the upper and lower surfaces by coating a conductive material with silver sol by, for example, a mesh printing method. Then, the first metal layer 221 and the second metal layer 22
2 is isolated by an insulating layer 223.

The function of the first metal layer 221 is to provide an electric field for exciting the carbon nanotubes 18 to emit electrons, for example, 0.8 V / μm, and the function of the second metal layer 222 is to release. The purpose is to control the passage of electrons into the cavity (through hole) 224 to achieve the purpose of the control switch. For example, the conducting wire 3 of the second metal layer 222
1 is perpendicular to the L conducting wire 21 in the conductive wire layer 19, x
The control capability of y-matrix addressing can be reached. The control is shown in FIG.

When the L conductor 21 in the conductive layer 19 receives a positive voltage, the entire corresponding line emits electrons. However, the conductor 31 of the second metal layer 222 is also emitted only when a positive voltage is simultaneously input. The emitted electrons pass through the gate electrode 16 and collide with the corresponding fluorescent powder 12, causing the fluorescent powder 12 to emit light.

At the same time, xy in one unit
Since matrix-type addressing driving can be performed, many red, blue, and green pixels can be manufactured on one light-emitting element. Therefore, this light emitting element can easily reach a resolution of 1 line / mm. The display screens combined at such high resolutions can display full color and conductor information.

FIG. 4 is an explanatory diagram of various gate electrodes. FIG. 4 (a) is a metal mesh showing the original shape of the gate electrode, and such a design is applied to the simplest light emitting element and can emit light which does not require contributing addressing, or
It is applied to a light emitting element addressed by a cathode. The gate electrode 16 in FIG. 4B is composed of the metal layer 41 and the insulating layer 42. In this way, the metal layer 41 can be controlled to emit a specific address band. FIG. 4C is a modified design of FIG. 4B in which the upper and lower positions of the metal layer 41 and the insulating layer 42 are replaced. FIG. 4D shows an improved gate electrode including the insulating layer 42, the first metal layer 411, and the second metal layer 412,
In such a design, the xy array is limited by the first metal layer 411 and the second metal layer 412, and a light emitting point at a specific position can be driven to emit light. FIG. 4E shows a more advanced improved gate electrode, in which a first insulating layer 421 is formed.
, A second insulating layer 422, a first metal layer 411, a second metal layer 412, and a third metal layer 413. Among them, the first metal layer 411 and the second metal layer 41
2 can define the xy address light emitting point, and the third metal layer 413 provides a focus effect so that the emitted electrons do not diverge on one light spot.

The metal layer may be an aluminum layer or a silver layer, and can be formed by a vapor deposition method or a printing method. Further, ceramic or glass can be used as the insulating layer material.

FIGS. 5 and 6 are explanatory diagrams of various types of addressing. Xy to display various pictures
Must be achieved by addressing. FIG.
(A) shows the gate electrode drive, and the addressing method is achieved by the gate electrode. The first metal layer 521 controls the x-coordinate, the second metal layer 523 controls the y-coordinate, and an insulating layer 522 is interposed between these two metal layers.

Electrons emitted from the electron emission source selectively pass from a specific address by addressing the two metal layers, and collide again with the fluorescent powder on the light emitting structure 53 to emit a light spot.

FIG. 5B shows another type of gate electrode driving, and the addressing method is such that the metal layer 5 of the gate electrode 52 is used.
25, the x (or y) coordinate is determined, and the carbon nanotube 511 of the electron emission source 51 determines the y (or x) coordinate.
By determining the coordinates, the address of the specific light emitting point is determined. By controlling the electric field between the carbon nanotube 511 and the metal layer 525, electrons at a specific address are emitted onto the light emitting structure 53 to emit a light spot.

FIG. 6 shows a cathode drive, which achieves the purpose of addressing by the structure of the electron emission source. An xy array of electron source materials 5 is provided on the panel of the electron emission source 51.
11 (which is a carbon nanotube in the embodiment of the present invention). If the control circuit 56 decodes the xy array electron source material 511 with respect to the control signal s, the specific electron source material is used to emit electrons. At least gate 5
The light is emitted to the light emitting structure by the suction of 2 to emit a light spot. (Embodiment 3) FIG. 7 is an explanatory view showing a preferred embodiment of a gate electrode. The spirit of the embodiment of the present invention resides in that the device is driven to emit light by the gate electrode structure mounted on the carbon nanotube layer. Such a structure requires that a separately and independently formed gate electrode be mounted on the carbon nanotube layer. As a result of continued studies on this, it was found that such a structure can be manufactured by a relatively simple method. This method is simple in processing and can solve the problem of alignment of the multilayer structure. That is, (1) First, a carbon nanotube layer 62 is net-printed on a glass or ceramic substrate 61. (2) Next, one dielectric layer or insulating layer is adhered on the carbon nanotube layer 62. (3) Subsequently, a conductive layer 64 such as a silver paste, a nickel paste, or a platinum paste is printed on the insulating layer 63. At this time, a three-layer structure of the gate electrode is formed. (4) Subsequently, a light emitting point is planned on the gate electrode so that one layer of the elastic polymer material can be applied to the conductive layer 64 as the protective layer 65. This protective layer is printed on the pattern 651 by a net printing method, or the pattern 651 is printed on a coating by an exposure and development method, and the light emitting point pattern 651 is transferred onto the protective layer. In this case, the area defined by the pattern of the conductive layer 64 is exposed to the outside. (5) Subsequently, the operation of the sandblast 66 is performed, and the pattern 6 of the protective layer 65 is formed by the fine particles 66 of the sandblast.
A part of the conductive layer 64 and the insulating layer 63 defined by 51
Is removed, and the carbon nanotube layer 62 is exposed. (6) Finally, if the protective layer 65 is removed, a gate electrode can be obtained.

As can be seen from the above illustration and description, the light emitting device according to the present invention has high efficiency, reduces power consumption, achieves the purpose of energy saving, and has the effect of high resolution.

Although the present invention has been fully described in connection with preferred embodiments thereof with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. It is to be understood that such changes and modifications are intended to be included therein without departing from the scope of the invention as set forth in the appended claims.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a structure of a light emitting device according to the present invention.

FIG. 2 is a sectional view showing another structure of the light emitting device according to the present invention.

FIG. 3 is a plan view illustrating a method for controlling a light emitting device according to the present invention.

FIG. 4 is an explanatory view showing various gate electrodes according to the present invention.

FIG. 5 is an explanatory diagram showing various types of addressing according to the present invention.

FIG. 6 is an explanatory diagram showing addressing according to the present invention.

FIG. 7 is a process chart showing a preferred embodiment of a gate electrode.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Black matrix 12 Fluorescent powder 13 Upper panel 14 Aluminum layer 15 Spacer 16, 52 Gate electrode 17 Glass substrate 18 Carbon nanotube 19 Conductive wire layer 21 L conducting wire 221, 411, 521 First metal layer 222, 412, 523 Second Metal layer 223 Insulating layer 224 Cavity 31 Conductor 40 Metal net 413 Third metal layer 421 First insulating layer 422 Second insulating layer 51 Electron emission source 511 Electron source material 522 Insulating layer 525 Metal layer 53 Light emitting structure 61 Substrate 62 Carbon nanotube layer 63 insulating layer 64 conductive layer 65 protective layer

Claims (21)

[Claims] 1. A light-emitting element that generates light by interaction between electrons and a light-emitting substance, comprising: an electron emission source having carbon nanotubes; and a gate electrode defining a plurality of light-emitting points, and controlling the gate electrode. By defining one specific light emitting point in it,
A light emitting device comprising: an electron emission structure that generates the electrons by the carbon nanotubes of the electron emission source; and a light emission structure that receives the electrons and generates light by interaction with the light emitting substance. 2. The method according to claim 1, wherein the gate electrode has a capability of addressing a cathode, thereby controlling the brightness and darkness of the specific light emitting point. The metal network has a metal layer and an insulating layer. The light emitting device according to claim 1, wherein the electrons are generated by excitation of an electric field between the electron emission source and the gate electrode, or are emitted by the carbon nanotube. 3. The light emitting structure according to claim 1, wherein the plurality of light emitting points are formed in an xy array, the light emitting structure is a substrate on which the light emitting material is entirely coated, and the light emitting material is a fluorescent material. The light emitting device according to claim 1, wherein the light emitting device is configured to be coated with an aluminum layer. 4. A light-emitting method for generating light by an interaction between electrons generated by the light-emitting element body and a light-emitting substance, wherein a carbon nanotube and a gate electrode having a plurality of light-emitting points are provided. Determining one specific light emitting point by controlling; applying an electric field onto the carbon nanotubes to generate the electrons; accelerating the electrons to pass through the gate electrode; Generating the light by the characteristics of the luminescent material by generating the interaction of the luminescent material. 5. The gate electrode has an xy-axis athletic ability, thereby having a metal network structure for controlling the brightness / darkness of the specific light emitting point, wherein the electrons are generated by excitation of the electric field, 5. The method according to claim 4, wherein the light emitting substance is a fluorescent powder, and the interaction is an action caused by the collision of the electrons with the light emitting substance. 6. A method of manufacturing a light-emitting element that generates light by an interaction between an electron generated by the light-emitting element body and a light-emitting substance, wherein a carbon nanotube for generating the electron and a plurality of light-emitting points are limited. Forming an electron emission structure having a gate electrode, and defining one specific light emitting point therein by controlling the gate electrode; forming an interval area on the electron emission structure; Forming a light emitting structure to which the light emitting substance is applied, and emitting light when the electrons collide with the light emitting substance. 7. The step of forming the electron emission structure includes: (A1) forming a substrate; (A2) forming an electron emission source on the substrate; and (A3) placing the gate electrode on the electron emission source. Wherein the substrate in the step (A1) is a glass substrate or a ceramic substrate, and the electron emission source in the step (A2) is a conductive wire first grown on the glass substrate. 7. The method according to claim 6, further comprising: carbon nanotubes grown on the conductive wire. 8. The light-emitting device according to claim 8, wherein the space area is an area for separating the electron-emitting structure from the light-emitting structure, and is formed by a spacer. B2) forming an aluminum layer. The light emitting layer in the step (B1) grows the light emitting substance on a transparent substrate, and the light emitting substance is preferably a fluorescent powder; The method according to claim 6, wherein the aluminum layer in B2) is grown on the luminescent material. 9. A light-emitting element that generates light by an interaction between an electron and a light-emitting substance, comprising: an electron-emitting source for generating the electron; a first metal layer adjacent to the electron-emitting source; A gate electrode that includes one insulating layer, defines a plurality of light-emitting points, and controls the address of one specific light-emitting point to pass through the electrons; and receives the electrons adjacent to the gate electrode. And a light-emitting structure for generating light in the light-emitting substance. 10. The gate electrode has a xy-axis addressing capability, and thereby has a metal network structure for controlling the brightness and darkness of the specific light emitting point. The metal network structure includes a first metal layer and a first metal layer. Wherein the electrons are generated by excitation of an electric field between the electron emission source and the gate electrode, and the gate electrode further includes an insulating layer interposed between the first metal layer and the first metal layer. The gate electrode preferably further comprises a second insulating layer adjacent to the second metal layer, and a third metal layer adjacent to the second insulating layer. The light emitting device according to claim 9, wherein the second insulating layer is interposed between the second metal layer and the third metal layer. 11. A light-emitting element that generates light by an interaction between an electron and a light-emitting substance, comprising: an electron-emitting source for generating the electron; and a plurality of light-emitting points adjacent to the electron-emitting source. A gate electrode controlled so that the address of one specific light emitting point passes through the electron; and a light emitting structure that receives the electron adjacent to the gate electrode and generates light in the light emitting material. A light-emitting element comprising: 12. A light-emitting element that generates light by an interaction between an electron and a light-emitting substance, wherein a plurality of light-emitting points are limited, and an address of one specific light-emitting point is controlled so that electrons can be emitted. An electron emission source; a gate electrode adjacent to the electron emission source so that an address of a specific light emitting point can pass through the electrons; and receiving the electrons adjacent to the gate electrode and generating light in the luminescent material. A light emitting element comprising: 13. The light emitting device according to claim 12, wherein said electron emission source controls the xy axis addressing by a control circuit, thereby controlling the brightness / darkness of said specific light emitting point. 14. The light emitting device according to claim 12, wherein said electron emission source is a carbon nanotube for emitting said electrons, and said plurality of light emitting points form an xy array. 15. A light-emitting element that generates light by causing electrons to interact with a light-emitting substance, comprising: an electron-emitting source having a carbon nanotube layer; and a gate electrode defining a plurality of light-emitting points. And a specific emission point is defined therein, and the electrons are generated by the carbon nanotubes of the electron emission source, and the gate electrode has an electron emission structure composed of an insulating layer and a conductive layer; And a light-emitting structure that receives light and generates light by interaction with the light-emitting substance. 16. A method of manufacturing a light emitting device that generates light by an interaction between an electron generated by the light emitting device main body and a light emitting substance, wherein the electron emitting structure formed by the carbon nanotube, the insulating layer and the conductive layer is provided. Forming, generating the electrons by the carbon nanotubes, defining a plurality of light emitting points by the insulating layer and the conductive layer; forming an interval area on the electron emission structure; Forming a light emitting structure coated with the light emitting substance, and emitting light by colliding the electrons with the light emitting substance. 17. The method according to claim 17, wherein forming the electron emission structure includes providing a substrate, net printing the carbon nanotube layer on the substrate, forming the insulating layer on the carbon nanotube layer, Forming a conductive layer on the insulating layer; forming a protective layer on the conductive layer; forming a limited pattern on the protective layer to expose the conductive layer to a plurality of external areas. Removing the conductive layer and the insulating layer defined by these areas by sandblasting, and exposing the carbon nanotube layer defined by these areas to the outside; and forming the electron emission structure by removing the protective layer. 17. The method according to claim 16, further comprising the steps of: 18. The method according to claim 17, wherein the conductive layer is made of a material such as a silver paste, a nickel paste or a platinum paste. 19. The method according to claim 17, wherein the pattern is formed by a net printing method or an exposure and development method. 20. A step of forming an insulating layer on the carbon nanotube layer on a substrate coated with the carbon nanotube layer, a step of forming a conductive layer on the insulating layer, and a protective layer on the conductive line. Forming a pattern defined on the protective layer so as to expose the conductive layer to a plurality of external areas; removing the conductive layer and the insulating layer defined by the areas by sandblasting; A method for manufacturing a gate electrode of a light emitting device, comprising: exposing a carbon nanotube layer defined by an area to the outside; and removing the protective layer to form the gate electrode. 21. The method according to claim 20, wherein the protective layer is a photoresistance.