JP2001035654A - Display panel and method of manufacturing the same - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent an adverse effect due to heat conduction to an electrode portion of a display element and to prevent an adverse effect of moisture absorption. A hole transport layer (5) is provided on a mounting surface of an element substrate (1).
The light emitting layer 6, the electron transport layer 7, and the cathode 8 are formed in this order, and the display unit 9 is formed. The element substrate 1 and the sealing substrate 10 are arranged to face each other with the sealing material 14 made of an ultraviolet curable resin including the conductive spacer 13 therebetween and pressed in the plate surface direction. Thus, the conductive spacer 13 conducts between the anode 2 and the cathode 8 of the element substrate 1 and the extraction electrode films 3 and 12 on the sealing substrate 10 side. Next, the sealing material 14 is cured by irradiating it with ultraviolet rays, and the element substrate 1 and the sealing substrate 10 are fixed. Thereby, the gap between the element substrate 1 and the sealing substrate 10 is sealed by the sealing material 14, thereby preventing the display element from absorbing moisture. The heat conduction is prevented by the connection structure of the anode 2 and the cathode 8, the spacer 13, and the extraction electrode films 3, 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a display panel using an electroluminescence element or the like and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, an electroluminescence (hereinafter, referred to as EL) element has a structure in which a thin film containing a fluorescent organic compound is sandwiched between a cathode and an anode, and electrons and holes are injected into the thin film. In this way, exciton (exciton) is generated by recombination, and display is performed by using light emission (fluorescence / phosphorescence) when the exciton is deactivated.

[0003]

In a display panel using the above-described EL element, the structure for connecting the cathode and anode of the EL element to the outside is disclosed in, for example, JP-A-6-290870 and JP-A-6-290870. What is disclosed in JP-A-9-120262 is known. However, in such a conventional structure, since heat from the outside is directly applied to the electrode portion of the EL element, the light emitting layer of the EL element may be deteriorated. On the other hand, EL
Since the element is deteriorated by moisture absorption, a structure disclosed in, for example, JP-A-9-148066 and JP-A-11-40347 is known as a structure for preventing the deterioration. However, even in such a conventional structure that suppresses moisture absorption, heat from the outside is transmitted to the electrode portion of the EL element, and the light emitting layer of the EL element may be deteriorated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a display panel and a method of manufacturing the display panel, which can prevent an adverse effect due to heat conduction to an electrode portion of a display element and can prevent an adverse effect of moisture absorption.

[0005]

According to the present invention, there is provided a display panel including a light-transmitting and insulating element substrate on which a display element is mounted, and an opposing element mounting surface of the element substrate, and sealing the display element. An insulating sealing substrate for stopping, a pair of connection electrode films that are led out from both electrode portions of the display element and are disposed on the mounting surface of the element substrate so as to extend outside the display element, A pair of extraction electrode films provided on a surface of the sealing substrate opposed to the element substrate and disposed opposite to a portion of the pair of connection electrode films extending to the outside of the display element, An insulating sealing material that seals a gap between the element substrate and the sealing substrate; and an insulating sealing material that is held inside the sealing material and is disposed between the connection electrode film and the extraction electrode film. Having a conductive spacer, wherein the element substrate and the sealing substrate are Disposed opposite at a predetermined interval via spacers, is fixed by the sealing material, the connection electrode layer and the extraction electrode film is characterized in that it is conducted by the spacer.

In a method of manufacturing a display panel according to the present invention, a translucent and insulating element substrate on which a display element is mounted is disposed to face an element mounting surface of the element substrate, and the display element is sealed. And a pair of connection electrode films derived from both poles of the display element and extending outside the display element on a mounting surface of the element substrate, and the sealing. A pair of lead-out electrode films provided on a surface of the substrate facing the element substrate and opposed to portions of the pair of connection electrode films extending outside the display element; and An insulating sealing material for sealing a gap between the substrate and the sealing substrate; and a conductive material held inside the sealing material and disposed between the connection electrode film and the extraction electrode film. A method of manufacturing a display panel having a spacer having A positioning step of arranging the element substrate and the sealing substrate to face each other via a spacer and a sealing material, and pressing the element substrate and the sealing substrate in a plate thickness direction, so that the element substrate and the sealing substrate are A pressing step of holding the connection electrode film and the extraction electrode film in a conductive state by spacers while holding the electrodes at a predetermined interval, and fixing the element substrate and the sealing substrate by solidifying the sealing material. And a process.

In the display panel according to the present invention, the display element is disposed in a gap formed between the element substrate and the sealing substrate while being mounted on the element substrate. On the mounting surface of the element substrate, a pair of connection electrode films derived from the positive electrode and the cathode of the display element are arranged so as to extend outside the display element. On the other hand, on a surface of the sealing substrate facing the element substrate, a pair of extraction electrode films is provided so as to face portions of each connection electrode film extending outside the display element. Then, in a state in which a sealing material including a conductive spacer is interposed between the connection electrode film and the extraction electrode film facing each other, the sealing material is solidified, so that the element substrate and the sealing substrate are solidified. Are fixed at predetermined intervals by a spacer, and the display element is sealed in the gap. With such a structure, the display element is sealed with each substrate and the sealing material to eliminate moisture absorption. Further, the display element is connected to the outside through a connection electrode film, a spacer, and a take-out electrode film, and such a connection structure prevents external heat from being easily transmitted to the display element. Therefore, it is possible to provide a display panel with improved quality by preventing adverse effects of moisture absorption and heat on the display element.

In the method of manufacturing a display panel according to the present invention, when a display element is sealed in a gap formed between an element substrate and a sealing substrate, first, in a positioning step,
The element substrate and the sealing substrate are arranged to face each other with a spacer and a sealing material interposed therebetween. Next, in a pressing step, the element substrate and the sealing substrate are pressed at a predetermined interval by pressing the element substrate and the sealing substrate in the thickness direction thereof. Thus, the connection electrode film and the extraction electrode film are kept in a conductive state by the spacer. Next, in the fixing step, the element substrate and the sealing substrate are fixed by solidifying the sealing material. With such a method, the display element is sealed with each substrate and the sealing material to eliminate moisture absorption. Further, the display element is connected to the outside through a connection electrode film, a spacer, and a take-out electrode film, and such a connection structure prevents external heat from being easily transmitted to the display element. Therefore, it is possible to provide a display panel with improved quality by preventing adverse effects of moisture absorption and heat on the display element.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a display panel and a method of manufacturing the same according to the present invention will be described. The display panel according to the present embodiment uses an organic EL element as a display element. A transparent element substrate on which the organic EL element is mounted and a sealing substrate facing the element substrate are formed by a sealing adhesive and a spacer. The EL element is sealed in a gap formed between the substrates by overlapping and joining through
The structure has a structure in which nitrogen gas or the like is injected into the gap.
FIG. 1 is a cross-sectional view illustrating the structure of the display panel of the present embodiment. FIG. 2 is a plan view showing an element pattern on an element mounting surface of an element substrate constituting the display panel shown in FIG. 1. FIG. 3 is an element substrate of a sealing substrate constituting the display panel shown in FIG. FIG. 4 is a plan view showing a wiring pattern on a surface facing the device.

The display panel shown in FIG. 1 is assembled by overlapping and bonding the element mounting surface of the element substrate shown in FIG. 2 and the opposing surface of the sealing substrate shown in FIG. Hereinafter, the configuration of the display panel will be described with reference to FIGS. First, the organic EL of the present embodiment
The display panel is based on the element substrate 1. The element substrate 1 is formed of a glass substrate or the like having an insulating property and a light transmitting property, and an anode (connection electrode film) 2 having a predetermined pattern is formed on a mounting surface shown in FIG.

The anode 2 is usually made of a metal such as nickel,
It is formed of a conductive transparent material having a large work function, such as O (indium tin oxide), CuI, SnO ₂ , and ZnO. In this example, the ITO film is formed as a transparent electrode by a sputtering method. Further, a part of the anode 2 is disposed so as to extend to a position near the periphery of the mounting surface of the element substrate 1 (that is, outside the EL element). 3 is connected to a positive electrode terminal (not shown) of the power supply through the extraction electrode film 3.

On the surface of the anode 2, an organic layer 4 as a display element is laminated. In the example of FIG. 1, the hole transport layer 5, the light emitting layer 6, and the electron transport layer 7 are sequentially laminated.
The organic layer 4 has a layer structure. Each layer 5-7
Is formed by, for example, a vacuum evaporation method. The hole transport layer 5 is made of, for example, TPD, and is formed on the surface of the anode 2 by lamination. Further, the light emitting layer 6 includes the hole transport layer 5
A layer is formed on the surface of the hole transport layer 5 so as to cover the whole. As the light-emitting material of the light-emitting layer 6, for example, aluminum quinoline (Alq), a distilylylene-based compound, or the like is used. In addition, another light emitting material (dough band) is used for the light emitting layer 6.
When dodo is emitted by doping a small amount of quinacrine, quinacdrine (Qd), a dye for laser, or the like is used as the doband. Further, the electron transport layer 7
Are laminated on the surface of the light emitting layer 6 so as to cover the entire light emitting layer 6. The electron transport layer 7 is made of, for example, Alq ₃
It is formed with.

The organic layer 4 is not limited to the three-layer structure shown in FIG. For example, if the light emitting layer 6 is formed of Alq ₃ , the electron transport layer 7 can be omitted, and the organic layer 4 can be formed with a two-layer structure of a hole transport layer and a light emitting layer.
Further, instead of the electron transport layer 7, for example, Li, Na, M
g, Ca, etc., a metal material having a small work function, Al: L
An electron injection layer made of an alloy having a small work function such as i, Mg: In, or Mg: Ag may be provided.

On the surface of the electron transport layer 7 of the organic layer 4, a cathode (connection electrode film) 8 is formed. The cathode 8 is bent from the surface of the electron transport layer 7 to
And is arranged so as to extend to a position near the periphery of the mounting surface of the element substrate 1 (ie, outside the EL element), and is connected to the extraction electrode film 12 of the sealing substrate 10 through the conductive spacer 13. It is connected to a negative electrode terminal (not shown) of the power supply through the extraction electrode film 12. The cathode 8 is formed by, for example, forming a film of Al: Li or Mg: Ag by co-evaporation.

With the above-described laminated structure of the anode 2, the organic layer 4, and the cathode 8, a display section 9 in which a large number of display pixels are arranged in a matrix on the element substrate 1 is formed. The overall thickness of such a display unit 9 depends on the laminated structure,
For example, it is formed in a range of 0.3 μm to 0.5 μm.
The anode 2 and the cathode 8 on the element substrate 1 extend outside the display unit 9 as shown in FIG. 2, but the extension of the anode 2 and the extension of the cathode 8 are mutually It is formed in a stripe shape in a direction perpendicular to the direction. In addition, the sealing substrate 10 is arranged at a position separated by a predetermined distance from the cathode 8 and in parallel with the element substrate 1. The sealing substrate 10 is an insulating material having a slightly larger area than the element substrate 1, and is made of, for example, a glass substrate having a good light-transmitting property.

The sealing substrate 10 is provided with extraction electrode films 3 and 12 corresponding to the patterns of the anode 2 and the cathode 8 of the element substrate 1. That is, the extraction electrode films 3 and 12 are formed in a stripe shape corresponding to the extended portions of the anode 2 and the cathode 8 of the element substrate 1 and reach the outer peripheral portion of the sealing substrate 10 as shown in FIG. Has been extended. Then, the extraction electrode film 3 facing the anode 2 is connected to the + terminal of the power supply, and the extraction electrode film 12 facing the cathode 8 is connected to the-terminal of the power supply. Each of the extraction electrode films 3 and 12 is made of a metal such as Au, nickel,
It is formed of a conductive transparent material such as O, CuI, SnO ₂ and ZnO.

On the sealing substrate 10, a spacer 13 is provided.
Is provided, and when the element substrate 1 is arranged on the sealing substrate 10 by inverting the state shown in FIG. 2, the sealing member 14 is interposed between the element substrate 1 and the sealing substrate 10. The space between the substrates 1 and 10 is sealed. The sealing material 14 is made of, for example, an adhesive made of an ultraviolet curable resin, and is solidified by irradiating ultraviolet rays in a state where the element substrate 1 and the sealing substrate 10 are positioned so as to face each other. 1 and 10 are fixed. The sealing material 14 is provided in a substantially rectangular shape pattern in plan view along the outer periphery of the display unit 9 on the element substrate 1 side in a state where the element substrate 1 and the sealing substrate 10 are arranged to face each other. Is disposed between the extension of the anode 2 or the cathode 8 and the extraction electrode films 3 and 12. In addition, a gas such as dry nitrogen is sealed in a gap between the substrates 1 and 10.

The spacer 13 is made of, for example, a conductive spherical body, and is interposed between the anode 2 or the cathode 8 and the extraction electrode films 3 and 12 to conduct between both electrodes. The spacer 13 is made of, for example, a simple metal such as Au, Ag, or Ni, or an alloy of these metals.
Alternatively, for example, Ni + A
Those plated with u can be used. The spacer 13 has a particle size larger than the thickness of the display unit 9 (the total thickness of the anode 2, the organic layer 4, and the cathode 8), and is, for example, in a range of 1 μm to 15 μm. The particle size of the spacer 13 defines an interval between the substrates 1 and 10.

The spacer 13 is previously mixed into the sealing material 14. By applying the sealing material 14 onto the sealing substrate 10 in a substantially rectangular pattern as described above,
It is arranged on the sealing substrate 10. Each spacer 13
Are insulated from each other by an insulating sealing material 14, and the corresponding anode 2 or cathode 8 and the extraction electrode film 3,
12 is conducted only between them. Then, the element substrate 1 and the sealing substrate 10 are joined via the spacer 13 and the sealing material 14, and the sealing material 14 is solidified in a state where the distance between the substrates 1 and 10 is defined by the particle size of the spacer 13. By being fixed. And the spacer 13
Is interposed between the anode 2 or the cathode 8 and the extraction electrode films 3 and 12, and the two electrodes are electrically connected. With this structure, the organic layer 4 is composed of the anode 2, the cathode 8, the spacer 13, and the extraction electrode film. It is connected to a power supply via 3 and 12. In the examples shown in FIGS. 2 and 3, the spacer 13 and the sealing material 14 are provided on the sealing substrate 10 to join the element substrate 1. 10
May be joined.

In the EL display panel having the above structure,
Holes are injected from the anode 2 to the light emitting layer 6 in the organic layer 4 via the hole transport layer 5, and the electron transport layer 7 is injected from the cathode 8.
Electrons are injected through. At this time, excitons are generated by recombination of holes and electrons. Desired display is performed by emission of light when the excitons are deactivated.

Next, a method of manufacturing the above EL display panel will be described. For example, ITO by sputtering
A hole transport layer 5, a light-emitting layer 6, an electron transport layer 7, and a cathode 8 are formed in this order on the mounting surface of the element substrate 1 on which the film anode 2 has been patterned by vacuum evaporation or the like, and a display section 9 is formed.
On the other hand, a sealing material 14 made of an adhesive made of an ultraviolet curable resin and including a spacer 13 having a particle diameter larger than the thickness of the display unit 9 is prepared. And this sealing material 14
Is replaced with dry air having a dew point of −70 ° C. or less by a dispenser in a device (for example, a glove box) so as to surround a region on the inner peripheral side of the extraction electrode films 3 and 12 of the sealing substrate 10. Apply in a pattern.

Next, the element substrate 1 on which the display section 9 is formed
Is moved from the vacuum evaporation apparatus or the like on which the display unit 9 is formed to the pressure bonding apparatus in a form that does not come into contact with the atmosphere. In addition, the element substrate 1 is also moved from the device that has performed the operation of applying the sealing material 14 to the pressure bonding device in a form that does not come into contact with the atmosphere. Here, the form that does not come into contact with the atmosphere means that the moving is performed in a state where there is no humidity due to dry air, or more preferably in a state where there is no humidity and oxygen due to dry nitrogen or the like. The following steps are performed in an atmosphere that does not come into contact with the air.

Next, in the pressure bonding apparatus, a step of positioning the element substrate 1 and the sealing substrate 10 is performed. In this method, for example, the element substrate 1 is transferred to the sealing substrate 10 positioned and held in a pressure bonding apparatus with high precision and arranged to face the sealing substrate 10. At this time, for example, a positioning mark (not shown) is attached to each of the substrates 1, 10
The substrate 1 and 10 are positioned with high accuracy while reading the mark by an image sensor or the like. Further, in this positioning step, each substrate 1,
It is necessary that the pattern of the 10 anodes 2 and the cathode 8 and the patterns of the respective extraction electrode films 3 and 12 are positioned with high precision and face each other.

Next, a pressing step of pressing the positioned substrates 1 and 10 in the thickness direction is performed. By this pressing step, the substrates 1 and 10 are pressed against each other with the spacer 13 interposed between the anode 2 and the cathode 8 and the extraction electrode films 3 and 12, and the substrates 1 and 10 are maintained at a predetermined interval. Things. At the same time, the anode 2 and the cathode 8 and the extraction electrode films 3 and 12 are brought into conduction by the spacer 13. In the process of bonding the substrates 1 and 10, dry air or preferably dry nitrogen in the pressure bonding apparatus is sealed in the gap between the substrates 1 and 10. The pressing pressure in the pressing step differs depending on the size of the display panel. For example, the particles of the spacer 13 are not completely crushed, and the distance between the spacers 13 after bonding is larger than the thickness of the display unit 9. It shall be decided within the range.

In this state, the back of the sealing substrate 10
That is, a solidifying step of irradiating ultraviolet rays from a surface opposite to the surface facing the element substrate 1 to cure the sealing material 14 is executed. As a result, the substrates 1 and 10 are adhered and solidified by the sealing material 14, and the anode 2 and the cathode 8 and the extraction electrode films 3 and 12 are fixed in a conductive state by the spacer 13. The spacer 13 included in the sealing material 14
Is formed in a spherical shape with no directivity, so that it does not expand in the plate surface direction by pressing each of the substrates 1 and 10,
The plurality of spacers 13 do not overlap. Therefore, the spacer 13 has both a function as a spacer for maintaining an interval between the substrates 1 and 10 and a function as an electrode for connecting the anode 2 and the cathode 8 to the extraction electrode films 3 and 12.

As described above, in the display panel and the method of manufacturing the same according to the present embodiment, the sealing material 14 serving as a sealing adhesive is used.
The conductive spacer 13 mixed into the sealing substrate 1 functions so as to define the distance between the substrates 1 and 10.
It is easy to assemble without touching 0 and receiving no damage. Further, the gap between the substrates 1 and 10 is sealed by the sealing material 14, so that the problem of moisture absorption of the EL element can be solved. Further, in the case where connection is made to the element substrate 1 by a flexible flat wiring board or the like for inputting a signal from an external power supply, heat may be applied to the cathode and the element may be deteriorated. Since the connection is made with the spacer 13 interposed, the element substrate is
Heat is not applied, and the degree of freedom of connection with the outside can be increased. Although the case where an EL element is used as a display element has been described above, the present invention can be similarly applied to a case where another display element having a similar sealing structure is used.

[0027]

As described above, in the display panel of the present invention, the display element is disposed in the gap formed between the element substrate and the sealing substrate, and is derived from the display element on the mounting surface of the element substrate. The connection electrode film is provided so as to extend outside the display element, and on the sealing substrate side, an extraction electrode film is provided in a state facing the extension of each connection electrode film, and the connection electrode films oppose each other. By solidifying this sealing material in a state where a sealing material containing a conductive spacer is interposed between the electrode substrate and the take-out electrode film, the element substrate and the sealing substrate are separated from each other by a predetermined distance by the spacer. And the display element was sealed in the gap. For this reason, the display element is sealed with each substrate and a sealing material to eliminate moisture absorption, and the display element is connected to the outside via the connection electrode film, the spacer, and the extraction electrode film, so that external heat is reduced. It can be easily prevented from being transmitted to the display element. Therefore, it is possible to prevent the adverse effects of moisture absorption and heat on the display element and provide a display panel with improved quality.

In the method of manufacturing a display panel according to the present invention, when the display element is sealed in a gap formed between the element substrate and the sealing substrate, first, in the positioning step, the sealing between the element substrate and the sealing is performed. The substrate and the sealing substrate are disposed opposite each other via a spacer and a sealing material, and then, in a pressing step, the element substrate and the sealing substrate are pressed in the thickness direction thereof, so that the element substrate and the sealing substrate are in predetermined positions. While holding at intervals, the connection electrode film and the extraction electrode film are held in a conductive state by a spacer, and then, by a fixing step, by solidifying the sealing material, the element substrate and the sealing substrate are fixed. did. For this reason, the display element is sealed with each substrate and a sealing material to eliminate moisture absorption, and the display element is connected to the outside via the connection electrode film, the spacer, and the extraction electrode film, so that external heat is reduced. It can be easily prevented from being transmitted to the display element. Therefore, it is possible to prevent the adverse effects of moisture absorption and heat on the display element and provide a display panel with improved quality.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a structure of a display panel according to an embodiment of the present invention.

FIG. 2 is a plan view showing an element pattern on an element mounting surface of an element substrate constituting the display panel shown in FIG.

FIG. 3 is a plan view showing a wiring pattern on a surface of a sealing substrate constituting the display panel shown in FIG. 1 facing an element substrate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Element board | substrate, 2 ... Anode, 3, 12 ... Extraction electrode film, 4 ... Organic layer, 5 ... Hole transport layer, 6 ... Emitting layer, 7 ... Electron transport layer, 8 ... Cathode, 9 display unit, 1
0 ... sealing substrate, 13 ... spacer, 14 ... sealing material.

Claims (17)

[Claims] 1. A light-transmitting and insulating element substrate on which a display element is mounted, and an insulating sealing substrate disposed to face an element mounting surface of the element substrate and sealing the display element. A pair of connection electrode films which are derived from both pole portions of the display element and are arranged on the mounting surface of the element substrate so as to extend outside the display element; and a surface of the sealing substrate facing the element substrate. A pair of lead-out electrode films disposed above and disposed opposite to a portion of the pair of connection electrode films extending to the outside of the display element, between the element substrate and the sealing substrate. An insulating sealing material for sealing the gap, and a conductive spacer held inside the sealing material and disposed between the connection electrode film and the extraction electrode film; The element substrate and the sealing substrate are arranged facing each other at a predetermined interval via the spacer. Display panel wherein is fixed with a sealing material, the connection electrode layer and the extraction electrode film is conducted by the spacer, characterized in that. 2. The display panel according to claim 1, wherein said display element is an organic electroluminescence element. 3. The organic electroluminescence element has an organic layer in which a hole transport layer, a light emitting layer, and an electron transport layer are sequentially laminated on the element substrate via a connection electrode film on the anode side made of a transparent electrode. 2. The display panel according to claim 1, wherein a cathode-side connection electrode film is connected to the electron transport layer. 4. The display panel according to claim 1, wherein the spacer is formed of a spherical particle. 5. The method according to claim 1, wherein the spherical particles have a size of 1 μm or more and 15 μm or more.
The display panel according to claim 4, wherein the display panel has a particle size of not more than m. 6. The display panel according to claim 4, wherein said spherical particle body is formed of a metal simple substance, an alloy, or a spherical resin plated with conductive material. 7. The display panel according to claim 1, wherein the sealing material is made of an ultraviolet curable resin. 8. A translucent and insulative element substrate on which a display element is mounted, and an insulative sealing substrate for opposing an element mounting surface of the element substrate and sealing the display element. A pair of connection electrode films which are derived from both pole portions of the display element and are arranged on the mounting surface of the element substrate so as to extend outside the display element; and a surface of the sealing substrate facing the element substrate. A pair of lead-out electrode films disposed above and disposed opposite to a portion of the pair of connection electrode films extending to the outside of the display element, between the element substrate and the sealing substrate. A display panel comprising: an insulating sealing material that seals a void portion; and a conductive spacer held inside the sealing material and disposed between the connection electrode film and the extraction electrode film. A manufacturing method, wherein the element substrate and the sealing substrate are A positioning step of opposingly arranging the element substrate and the sealing substrate via a sealing material, and pressing the element substrate and the sealing substrate in a plate thickness direction to hold the element substrate and the sealing substrate at a predetermined interval and to form the connection electrode A display comprising: a pressing step of holding a film and an extraction electrode film in a conductive state by a spacer; and a fixing step of fixing the sealing material to the element substrate and the sealing substrate by solidifying the sealing material. Panel manufacturing method. 9. The method according to claim 8, wherein the display element is an organic electroluminescence element. 10. The organic electroluminescence element is provided with an organic layer in which a hole transport layer, a light emitting layer, and an electron transport layer are sequentially laminated on the element substrate via a connection electrode film on the anode side made of a transparent electrode. 9. The method for manufacturing a display panel according to claim 8, wherein a connection electrode film on the cathode side is connected to the electron transport layer. 11. The method according to claim 8, wherein the spacer is formed of a spherical particle. 12. The method according to claim 1, wherein the spherical particles have a particle size of 1 μm or more and 15 μm or more.
The method of manufacturing a display panel according to claim 11, wherein the display panel has a particle size of not more than μm. 13. The method of manufacturing a display panel according to claim 11, wherein the spherical particles are formed of a single metal, an alloy, or a spherical resin plated with a conductive material. 14. The display panel manufacturing method according to claim 8, wherein the sealing material is made of an ultraviolet curable resin, and the fixing step is a step of curing the ultraviolet curable resin by irradiating ultraviolet rays. 15. The method for manufacturing a display panel according to claim 14, wherein the sealing substrate is formed of a transparent plate, and the ultraviolet irradiation is performed through the sealing substrate. 16. The method according to claim 8, wherein at least the positioning step and the pressing step are performed in an atmosphere without humidity. 17. The method according to claim 16, wherein at least the positioning step and the pressing step are performed in an oxygen-free atmosphere without oxygen.