KR101071885B1 - Field emission device and producing method thereof - Google Patents

Abstract

According to the present invention, an anode electrode disposed under the first panel top plate, a phosphor layer formed under the anode electrode, a plurality of electron emitting portions disposed to be spaced apart and spaced apart from the phosphor layer, the plurality of A cathode disposed at an upper portion of the electron emission unit and disposed above the first panel lower panel, a first spacer disposed between the first panel upper panel and the first panel lower panel to maintain a gap, and the first panel upper panel and the first panel The FED package is provided between the first panel lower plate 19 and includes a first side glass formed at a top and a bottom of the first plate to seal a vacuum between the first panel upper panel and the first panel lower panel. ; A second panel lower plate on which a plurality of the FED packages are disposed; A second panel top plate facing and spaced apart from the FED package; A second spacer disposed between the second panel upper plate and the second panel lower plate to form an accommodation part by separating the second panel upper plate and the second panel lower plate from each other; And a second side glass disposed between the upper side of the second panel and the lower side of the second panel, and having a second fleet formed at an upper end and a lower end to seal the FED package in a vacuum in the accommodating part. An emission surface light source is disclosed.

Field emission, light source, panel, package, FED

Description

Field emission surface light source and manufacturing method of field emission surface light source {FIELD EMISSION DEVICE AND PRODUCING METHOD THEREOF}

The present invention relates to a field emission surface light source and a manufacturing method thereof, and more particularly, by secondary sealing in a vacuum state in a state in which a plurality of FED packages are arranged in a tile form, thereby increasing electron emission efficiency and increasing light efficiency. It relates to a field emission surface light source and a method of manufacturing the same.

Recently, as various display devices have been developed, the importance of a light source is increasing. As such a light source, a wide variety of types are used, from incandescent lamps for heating filaments to those using gas discharges, and those using phosphor light emission. These light sources can be used as simple lighting devices, but they can also be made as surface light sources and used as backlights for displays such as LCDs.

The LCD backlight is mainly used a Cold Cathode Flourescent Lamp (CCFL) that provides a high luminance and even light emitting area. It is prepared by coating a fluorescent material on the inner surface of the glass tube, forming electrodes at both ends of the glass tube, and then encapsulating an inert gas and mercury in a lamp.

When a high voltage is applied to both ends of the lamp, electrons in the glass tube move toward the electrode at a high speed, and discharge is initiated by secondary electrons generated by collision of the electrode with the electron, and the electron emitted from the electrode is a mercury atom. Ultraviolet rays are generated from mercury while colliding with the UV rays, and the ultraviolet rays excite the phosphor coated on the inner surface of the glass tube to generate visible light.

However, these CCFLs have limitations in use as the size of the LCD increases, requiring brighter brightness and higher efficiency. In addition, in order to protect the environment, the use of mercury is increasingly regulated, so a new surface light source having a brightness and efficiency of CCFL or higher without using mercury is required.

Among these new surface light sources, field emission (FE) type surface light sources are distinguished in terms of size, brightness and efficiency. The electroluminescent technique is a concept of forming various types of field emission sources, such as those used in electroluminescent devices, and then emitting light by colliding with phosphors facing the electrons emitted from the field emission sources. Through this, a high brightness light source can be obtained.

However, the conventional field emission type surface light source also has a large area, it is not possible to obtain a high luminance uniformity, and the production process limitation, such as to increase the production facilities in order to produce a large area light source product of more than 30 inches There was a problem reaching.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a field emission surface light source having a high light emission uniformity and a light emission efficiency required for a large area of the surface light source and a manufacturing method thereof.

The field emission surface light source according to the present invention for achieving the above object, the anode electrode 12 disposed under the first panel top plate 11, and the phosphor layer 13 formed under the anode electrode 12 ), A plurality of electron emitting portions 17 disposed to face the phosphor layer 13 and spaced apart from each other, and the plurality of electron emitting portions 17 are disposed on an upper portion of the first panel lower plate 19. A first spacer 15 and a first panel top plate 11 disposed between the cathode electrode 18 disposed between the first electrode top plate 11 and the first panel lower plate 19 to maintain a gap. And a first plate 16b formed at an upper end and a lower end of the first panel lower plate 19 to seal the vacuum between the first panel upper plate 11 and the first panel lower plate 19 in a vacuum state. An FED package 10 including one side glass 16a; A second panel lower plate 110 on which a plurality of FED packages 10 are disposed; A second panel upper plate 120 facing the FED package 10 and spaced apart from each other; A second spacer 140 disposed between the second panel upper plate 120 and the second panel lower plate 110 to form an accommodation part by separating the second panel upper plate 120 and the second panel lower plate 110 from each other; ); And a second fleet 130b formed at an upper end and a lower end of the second panel upper plate 120 and the second panel lower plate 110 to vacuum the FED package 10 in the accommodating part. And a second side glass 130a sealed with.

Here, the electron emission unit 17 may be formed by printing a carbon nanotube by a printing method.

In addition, the FED package 10 may further include a gate electrode electrically insulated from the cathode electrode 18 and disposed in proximity to the electron emission unit 17.

In addition, a diffusion member layer 150 may be disposed on the upper portion of the second panel upper plate 120 to diffuse visible light generated by the phosphor layer 13 to be emitted in an even light emission state.

In addition, a color conversion member layer may be further formed on the upper portion of the second panel upper plate 120 or on the diffusion member layer 150 so that visible light generated by the phosphor layer 13 is emitted in a predetermined color. Can be arranged.

On the other hand, the method for manufacturing a field emission surface light source according to the present invention for achieving the above object, the anode electrode 12 disposed below the first panel top plate 11, and the lower portion of the anode electrode 12 The formed phosphor layer 13, the plurality of electron emitting units 17 disposed to face the phosphor layer 13 and spaced apart from each other, and the plurality of electron emitting units 17 are disposed on an upper portion of the first panel. A first spacer 15 and the first spacer disposed between the cathode electrode 18 disposed on the upper portion 19 and the first panel upper plate 11 and the first panel lower plate 19 to maintain a gap; It is disposed between the panel top plate 11 and the first panel lower plate 19, the first fleet (16b) is formed on the upper and lower ends to vacuum between the first panel top plate 11 and the first panel lower plate 19. FED package preparation step (S200) of preparing a FED package 10 including a first side glass (16a) for sealing in a state; FED package arrangement step (S210) of distributing a plurality of the FED package 10 on the upper portion of the second panel lower panel (110); A second panel top plate disposing step (S220) for disposing a second panel top plate 120 to face the FED package 10 and to be spaced apart from each other; A second spacer 140 is disposed between the second panel upper plate 120 and the second panel lower plate 110 to separate the second panel upper plate 120 and the second panel lower plate 110 from each other. Receiving portion forming step of forming a portion (S230); And a second side glass 130a having a second fleet 130b formed at an upper end and a lower end between the second panel upper plate 120 and the second panel lower plate 110, and thermally compressing the FED package ( Includes; sealing step (S240) for sealing 10) in the vacuum in the receiving portion.

Here, the electron emission unit 17 may be formed by printing a carbon nanotube by a printing method.

In addition, the FED package 10 may further include a gate electrode electrically insulated from the cathode electrode 18 and disposed in proximity to the electron emission unit 17.

In addition, the diffusion member layer arrangement step (S250) for disposing the diffusion member layer 150 on the upper portion of the second panel 120 may be further included.

In addition, a color conversion member layer arrangement step (S260) of disposing a color conversion member layer on the upper portion of the second panel upper plate 120 or on the diffusion member layer 150 may be further included.

According to the field emission surface light source and the manufacturing method thereof according to the present invention,

Even if it is manufactured with a surface light source having a large area, it is possible to maintain a high luminous uniformity and luminous efficiency, and of course, there is an effect that can be easily produced without increasing the size of the production equipment to manufacture a large area light source.

In addition, since the unit light source (more specifically, the electron emission unit, the phosphor layer, and the electrode) itself has a structure that is secondarily sealed in a vacuum state, the vacuum state is compared with a conventional surface light source provided in a primary sealed structure. Since the period of maintaining is long, there is an advantage that can maintain excellent luminous efficiency for a long time.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a cross-sectional view showing the unit unit configuration of the FED package 10 disposed inside the field emission surface light source 100 according to an embodiment of the present invention, Figure 2 is a FED package 10 of FIG. 3 is an exploded perspective view illustrating the configuration of the field emission surface light source 100 of FIG. 2, and FIG. 4 is the field emission surface light source 100 of FIG. 2. It is a top view which shows the structure.

First, the configuration and function of the field emission surface light source 100 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 to 4, the field emission surface light source 100 of the present invention, the FED package 10, the second panel lower plate 110, the second panel upper plate 120, the second spacer 140 ), A second side glass 130a, a second fleet 130b, and a diffusion member layer 150.

The field emission device (FED) package 10 is a unit unit package that individually provides a light source in the field emission surface light source 100 of the present invention, and each FED package 10 has a phosphor layer 13 disposed therein. According to the configuration of) can be emitted a variety of colors, such as red, green, blue and mixed colors as shown in FIG.

1 shows the configuration of the FED package 10. Referring to FIG. 1, the FED package 10 may include an anode electrode 12 disposed below the first panel upper plate 11, a phosphor layer 13 formed below the anode electrode 12, The plurality of electron emitting units 17 disposed to face the phosphor layer 13 and spaced apart from each other, and the plurality of electron emitting units 17 are disposed on an upper portion of the first panel lower plate 19. A first spacer 15 disposed between the cathode electrode 18 and the first panel upper plate 11 and the first panel lower plate 19 to maintain a gap; and the first panel upper plate 11 The first panel lower plate 19 is packaged and sealed by the first side glass 16a having the first fleet 16b formed at the top and the bottom thereof, thereby maintaining the inside of the vacuum.

In more detail, an anode electrode 12 formed of a transparent metal material and provided to enable high voltage is disposed under the first panel 11 of the glass substrate.

A phosphor layer 13 formed of a phosphor that is excited when the electrons emitted from the electron emission unit 17 collides and emits a visible light source is disposed below the anode electrode 12.

In addition, a reflective metal layer 14 may be disposed below the phosphor layer 13 to increase light efficiency by reflecting light emitted in a downward direction of the phosphor layer 13 upward.

In this case, the thicker the reflective metal layer 14 is, the higher the reflection efficiency is, but it hinders the progress of electrons emitted from the electron emitting unit 17. Since the progress of electrons emitted from the emitting portion 17 is facilitated, the thickness is preferably determined in consideration of the reflection efficiency and the transmittance of light.

In addition, between the phosphor layer 13 and the reflective metal layer 14, a flat layer (not shown) for flatly coating the lower surface of the phosphor layer 13 so that the reflective metal layer 14 is formed flat. This can be formed.

Below the phosphor layer 13 or the reflective metal layer 14, a plurality of electron emission units 17 are disposed to face the phosphor layer 13 or the reflective metal layer 14 and are spaced apart from each other.

Here, the electron emitting unit 17 may be a micro tip type, metal edge type, carbon nano tube (CNT) type, or the like.

In addition, the electron emission unit 17 may form the carbon nanotubes in a dot form by printing using screen printing, etc., thereby improving efficiency and convenience of the process. Since the carbon nanotubes emit electrons even at a relatively low anode voltage, it is preferable to use the carbon nanotubes as the electron emission unit 17, but of course, other types of electron emission sources may be used as the electron emission unit 17. have.

The first spacer 15 is disposed in a form in which one end supports the phosphor layer 13 or the reflective metal layer 14 and the other end supports the cathode electrode 18, thereby emitting the phosphor layer 13 and electrons. The unit 17 performs a function of electrically insulating and spaced apart from each other.

The first side glass 16a is a plate-shaped glass substrate disposed between the first panel upper plate 11 and the first panel lower plate 19, and powder and binder are disposed at upper and lower ends thereof. The first paste 16b in the form of a mixed paste is formed, and the first fleet 16b is fired by melting at high temperature and sealing the inside of the FED package 10 in a vacuum state ( Sealing). Due to the internal structure of the vacuum state it is possible to protect the electrode from the external pressure, it is possible to implement the effect of preventing the external moisture penetration.

Due to the configuration of the FED package 10, when a high high voltage is applied to the anode electrode 12, electrons (dashed arrow in FIG. 2) are emitted from the electron emission unit 17, and the emitted electrons are reflected. Through the metal layer 14 and the flat layer, the phosphor layer 13 is excited to emit light.

Light emitted from the phosphor layer 13 is emitted toward the anode electrode 12 and the first panel top plate 11, and light toward the reflective metal layer 14 (lower direction) is emitted from the reflective metal layer 14. Reflected to increase the efficiency.

Here, the electron emission structure of the FED package 10 shown in FIGS. 1 and 2 is a diode type that directly emits electrons by applying a high voltage to the anode electrode 12, but is electrically insulated from the cathode electrode 18. In addition, a three-electrode type may be used by further including a gate electrode (not shown) disposed close to the electron emission unit 17.

In addition, since the electrons emitted from the electron emission unit 17 go straight to the phosphor layer 13, the portion where the electrons collide is relatively bright, and the portion where the electrons do not collide may appear relatively dark, and thus, the first portion may be relatively dark. A diffuser plate (not shown) may be further disposed on the panel upper plate 11 to obtain an overall uniform light emission state.

Meanwhile, as shown in FIGS. 2 and 3, the lower panel 110 of the second panel is a glass substrate, and a plurality of the FED packages 10 are dispersed in the upper portion of the second panel. Here, the plurality of FED packages 10 are arranged at a uniform interval in order to implement the uniformity and luminous efficiency, the interval is preferably determined in consideration of the brightness and efficiency of the emitted light.

The second panel upper plate 120 is positioned above the second panel lower plate 110 as a glass substrate, but is spaced apart from and facing the FED package 10.

 In addition, the second spacer 140 is vertically disposed between the second panel upper plate 120 and the second panel lower plate 110, so that the second panel upper plate 120 and the second panel lower plate 110 are disposed. Are spaced apart from each other to form a receiving portion.

Here, the accommodating part means a space between the second panel upper plate 120 and the second panel lower plate 110 formed by the second spacer 140, and is also a space in which the FED package 10 is disposed.

    That is, the second spacer 140 is disposed in a state in which one end supports the second panel upper plate 120 and the other end supports the second panel lower plate 110 so that the second panel upper plate 120 is disposed. The second panel and the lower panel 110 are separated from each other and at the same time electrically insulating. In addition, the separation distance between the second panel upper plate 120 and the second panel lower plate 110 is determined by the length of the second spacer 140.

The second side glass 130a is a plate-shaped glass substrate disposed between the second panel upper plate 120 and the second panel lower plate 110, and powder and binder are disposed on the upper and lower ends. The second fleet 130b in the form of a paste (Paste) is mixed, and the second fleet 130b is fired by melting at a high temperature to form an internal space (accommodating portion) of the field emission surface light source 100. Seal in vacuum. Due to the internal structure of the vacuum state it is possible to protect the electrode from the external pressure, it is possible to implement the effect of preventing the external moisture penetration.

That is, since the field emission surface light source 100 of the present invention is provided in a structure in which the unit light source (the electron emission unit 17 and the phosphor layer 13) itself is sealed in a secondary state in a vacuum state, the structure is primarily sealed. Compared with the conventional surface light source provided with, the longer the period to maintain the vacuum state can implement the effect of maintaining excellent luminous efficiency for a long time.

Here, a gap of a certain size may occur between the plurality of FED packages 10 disposed inside the field emission surface light source 100, and thus an upper portion of the FED package 10 may be formed. As it is relatively bright and the upper portion of the gap may appear relatively dark, as shown in FIG. 2, the visible light generated by the phosphor layer 13 is evenly formed on the upper portion of the second panel upper plate 120. It is preferable that the diffusion member layer 150 is disposed to disperse and diffuse the light so as to emit in the light emitting state.

Here, the diffusion member layer 150 may be a diffusion sheet or a prism sheet.

In addition, a color conversion sheet which allows visible light generated by being excited by the phosphor layer 13 to be emitted in a predetermined color on the upper portion of the second panel upper plate 120 or on the diffusion member layer 150 ( It is preferable to further arrange a color conversion member layer (not shown) such as a color sheet.

Next, a method of manufacturing a field emission surface light source according to a preferred embodiment of the present invention will be described.

5 is a flowchart illustrating a method of manufacturing a field emission surface light source according to an embodiment of the present invention.

As shown in FIG. 5, the method of manufacturing the field emission surface light source of the present invention includes a FED package preparation step (S200), an FED package arrangement step (S210), a receiving part forming step (S230), a sealing step (S240), and diffusion. The member disposition step S250 and the color conversion member layer disposition step S260 are included.

First, the FED package preparation step (S200) is a step of preparing the FED package 10, the anode electrode 12 disposed below the first panel top plate 11 and the lower portion of the anode electrode 12 A phosphor layer 13 formed on the substrate, a plurality of electron emitting portions 17 disposed to face the phosphor layer 13 and spaced apart from each other, and a plurality of electron emitting portions 17 disposed on the first panel A cathode electrode 18 disposed on the lower plate 19 and a first spacer 15 disposed between the first panel upper plate 11 and the first panel lower plate 19 to maintain a spacing therebetween; The first panel upper plate 11 and the first panel lower plate 19 are packaged by a first side glass 16a having a first leaf 16b formed at an upper end and a lower end thereof, and the inside thereof is sealed in a vacuum state. Prepare (10).

Here, the electron emission unit 17 may be a micro tip type, metal edge type, carbon nano tube (CNT) type, or the like.

In addition, the electron emission unit 17 may form the carbon nanotubes in a dot form by a printing method using screen printing, etc., thereby increasing efficiency and convenience of the process. Since the carbon nanotubes emit electrons even at a relatively low anode voltage, it is preferable to use the carbon nanotubes as the electron emission unit 17, but of course, other types of electron emission sources may be used as the electron emission unit 17. have.

In addition, although the electron emission structure of the FED package 10 illustrated in FIGS. 1 and 2 is a diode type that directly emits electrons by applying a high voltage to the anode electrode 12, the electron emission structure is electrically insulated from the cathode electrode 18. In addition, a three-electrode type may be used by further including a gate electrode (not shown) disposed close to the electron emission unit 17.

The FED package arrangement step (S210) is a step of distributing the plurality of FED packages 10 on the upper portion of the lower panel 110 of the second panel, and the plurality of FED packages 10 to implement the uniformity of light emission and the luminous efficiency. ) Is arranged at uniform intervals, the interval is preferably determined in consideration of the luminance of the emitted light.

In the receiving unit forming step (S230), the second panel upper plate 120 and the second panel lower plate 110 are spaced apart from each other between the second panel upper plate 120 and the second panel lower plate 110. By arranging the two spacers 140, the receiving portion, which is a space in which the FED package 10 is disposed, is formed.

In the sealing step (S240), between the second panel upper plate 120 and the second panel lower plate 110 to place a second side glass 130a having a second fleet 130b formed at the top and bottom, The FED package 10 is sealed in a vacuum state in the receiving portion by heat pressing.

Such a method of manufacturing the field emission surface light source of the present invention, even if the field emission surface light source 10 is made of a surface light source having a large area through the above configuration, it is possible to maintain a high luminous uniformity and luminous efficiency Of course, there is an effect that can be easily produced without the need to increase the size of the production equipment to produce a large area light source.

In addition, since the unit light source itself has a structure that is secondarily sealed in a vacuum state, compared with the conventional surface light source provided with a primary sealed structure, the period of maintaining the vacuum state becomes longer, so that excellent luminous efficiency can be maintained for a long time. There is an advantage.

Meanwhile, in the dispersing member disposing step (S250), dispersing member layer 150 is disposed on the upper portion of the second panel upper plate 120, and the diffusing member layer 150 is a diffusion sheet or a prism sheet. Can be.

In addition, the color conversion member layer arrangement step (S260) may include a color conversion member layer (such as a color sheet) on the upper portion of the second panel upper plate 120 or the diffusion member layer 150. Step).

Therefore, the method of manufacturing the field emission surface light source of the present invention through the configuration of the color conversion member layer has an effect that can produce a field emission surface light source 100 to provide light of various colors.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a cross-sectional view showing the unit unit configuration of the FED package disposed inside the field emission surface light source according to an embodiment of the present invention;

2 is a cross-sectional view showing the configuration of a field emission surface light source in a state where the FED package 10 of FIG.

3 is an exploded perspective view showing the configuration of the field emission surface light source of FIG.

4 is a plan view showing the configuration of the field emission surface light source of FIG.

5 is a flowchart illustrating a method of manufacturing a field emission surface light source according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10 ... FED Package 11 ... First Panel Top

12 anode electrode 13 phosphor layer

14 ... reflective metal layer 15 ... First spacer

16a ... 1st side glass 16b ... 1st fleet

17 Electron emitter 18 Cathode electrode

19 Lower panel of the first panel 100 Field emission surface light source

110 ... the bottom of the second panel 120 ... the top of the second panel

130a ... 2nd Side Glass 130b ... 2nd Fleet

140 2nd spacer 150 Diffusion member layer

Claims (6)

An anode 12 disposed below the first panel 11, a phosphor layer 13 formed below the anode 12, and the phosphor layer 13 facing and spaced apart from each other, A plurality of electron emitting portions 17, the plurality of electron emitting portions 17 are disposed on the upper portion, the cathode electrode 18 disposed on the upper portion of the first panel lower plate 19, and the first panel upper plate 11. ) Is disposed between the first panel 15 and the first panel upper plate 11 and the first panel lower plate 19 disposed between the first panel lower plate 19 and maintaining a gap therebetween. A FED package 10 including a first side glass 16a formed with a first fleet 16b to seal the vacuum between the first panel upper plate 11 and the first panel lower plate 19 in a vacuum state; A second panel lower plate 110 on which a plurality of FED packages 10 are disposed; A second panel upper plate 120 facing the FED package 10 and spaced apart from each other; A second spacer 140 disposed between the second panel upper plate 120 and the second panel lower plate 110 to form an accommodation part by separating the second panel upper plate 120 and the second panel lower plate 110 from each other; ); And It is disposed between the second panel upper plate 120 and the second panel lower plate 110, the second fleet (130b) is formed at the top and the bottom of the FED package 10 in a vacuum state in the receiving portion Sealing second side glass (130a); Field emission surface light source comprising a. The method of claim 1, The field emission surface light source of the FED package (10) further comprises a gate electrode electrically insulated from the cathode electrode (18) and disposed in close proximity to the electron emission unit (17). The method of claim 1, On the upper portion of the second panel top plate 120, Field emission surface light source, characterized in that the diffusion member layer 150 for dispersing so that visible light generated by the phosphor layer 13 is emitted in an even light emission state. An anode 12 disposed below the first panel 11, a phosphor layer 13 formed below the anode 12, and the phosphor layer 13 facing and spaced apart from each other, A plurality of electron emitting portions 17, the plurality of electron emitting portions 17 are disposed on the upper portion, the cathode electrode 18 disposed on the upper portion of the first panel lower plate 19, and the first panel upper plate 11. ) Is disposed between the first panel 15 and the first panel top plate 11 and the first panel lower plate 19, which are disposed between the first panel lower plate 19 and maintain a gap therebetween, The FED package 10 includes a first side glass 16a formed with a first fleet 16b to seal a vacuum between the first panel upper plate 11 and the first panel lower plate 19. FED package preparation step (S200) to prepare; FED package arrangement step (S210) of distributing a plurality of the FED package 10 on the upper portion of the second panel lower panel (110); A second panel top plate disposing step (S220) for disposing a second panel top plate 120 to face the FED package 10 and to be spaced apart from each other; A second spacer 140 is disposed between the second panel upper plate 120 and the second panel lower plate 110 to separate the second panel upper plate 120 and the second panel lower plate 110 from each other. Receiving portion forming step of forming a portion (S230); And The FED package 10 is disposed between the second panel upper plate 120 and the second panel lower plate 110 by disposing a second side glass 130a having a second fleet 130b formed at an upper end and a lower end thereof. Sealing step (S240) to seal the vacuum in the receiving portion; Method for producing a field emission surface light source comprising a. The method of claim 4, wherein The FED package (10), the method of manufacturing a field emission surface light source, characterized in that it further comprises a gate electrode which is electrically insulated from the cathode electrode (18), the proximity to the electron emitting portion (17). The method of claim 4, wherein And a diffusing member layer disposing step (S250) for disposing a diffusing member layer (150) on the upper portion of the second panel upper plate (120).

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