JP4926246B2 - Organic EL device manufacturing equipment - Google Patents

Organic EL device manufacturing equipment Download PDF

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JP4926246B2
JP4926246B2 JP2009515127A JP2009515127A JP4926246B2 JP 4926246 B2 JP4926246 B2 JP 4926246B2 JP 2009515127 A JP2009515127 A JP 2009515127A JP 2009515127 A JP2009515127 A JP 2009515127A JP 4926246 B2 JP4926246 B2 JP 4926246B2
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chamber
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JPWO2008142966A1 (en
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純一 永田
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Ulvac Inc
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/10Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00Electroluminescent light sources
    • H05B33/02Details
    • H05B33/04Sealing arrangements, e.g. against humidity
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/87Passivation; Containers; Encapsulations
    • H10K59/871Self-supporting sealing arrangements
    • H10K59/8722Peripheral sealing arrangements, e.g. adhesives, sealants
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10Deposition of organic active material
    • H10K71/12Deposition of organic active material using liquid deposition, e.g. spin coating
    • H10K71/13Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
    • H10K71/135Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/40Thermal treatment, e.g. annealing in the presence of a solvent vapour
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/811Controlling the atmosphere during processing

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

本発明は有機ELディスプレイ等の有機EL装置の製造装置に関する。   The present invention relates to an apparatus for manufacturing an organic EL device such as an organic EL display.

有機EL材料は、水や酸素によって化学的に劣化しやすいため、インクジェットプリンタによる有機EL材料の塗布工程、吐出装置による封止材料の塗布工程、更には、基板の貼り合わせ工程等の各工程を、外部雰囲気から遮断した作業室内部で行う方法が提案されている。   Since organic EL materials tend to be chemically degraded by water and oxygen, the organic EL material application process using an ink jet printer, the sealing material application process using a discharge device, and the substrate bonding process are performed. In addition, a method of performing in a work chamber that is shielded from the external atmosphere has been proposed.

各工程を行う前には、作業室の内部を排気する、及び/又は作業室の内部に乾燥ガスを導入して作業室の内部空間を乾燥ガスで置換して、水や酸素などの不純物ガスを除去する。   Before performing each process, exhaust the interior of the work chamber and / or introduce a dry gas into the work chamber and replace the interior space of the work chamber with the dry gas, and impurity gases such as water and oxygen Remove.

しかし、作業室内部や、乾燥ガスの導入を行っても、不純物ガスは作業室の内壁面に付着して残るため、完全に除去することはできない。
除去されずに残った不純物ガスは、作業中に蒸発して内部空間に放出され、有機材料層に混入する。
従って、従来の製造装置では、不純物ガスを混入させずに、有機EL装置を製造することが困難であった。
特開2004−174659号公報
However, even if the inside of the working chamber or the introduction of the dry gas is performed, the impurity gas remains attached to the inner wall surface of the working chamber and cannot be completely removed.
The impurity gas remaining without being removed evaporates during operation and is released into the internal space, and is mixed into the organic material layer.
Therefore, it has been difficult to manufacture an organic EL device without mixing an impurity gas with a conventional manufacturing apparatus.
JP 2004-174659 A

本発明は上記課題を解決するために成されたものであり、その目的は、不純物ガスを混入させずに、有機EL装置を製造可能な製造装置を提供することである。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a manufacturing apparatus capable of manufacturing an organic EL device without mixing an impurity gas.

有機EL装置の寿命を長くするためには、露点−76℃(水分濃度1ppm)以下の雰囲気で作業を行う必要がある。
室温の条件で、作業室内部に残留する水を、作業室内部の排気と乾燥窒素ガスの供給とを同時に行うことで、排出しようとしたところ(作業室内部は大気圧に維持)、60時間後に露点−75℃まで達したが、その後は露点が下がらず、300時間が経過しても露点−75℃のままであり、露点−76℃には達しなかった。
In order to prolong the lifetime of the organic EL device, it is necessary to work in an atmosphere having a dew point of −76 ° C. (water concentration 1 ppm) or less.
At room temperature, the water remaining in the working chamber was exhausted by simultaneously exhausting the working chamber and supplying dry nitrogen gas (maintaining the working chamber at atmospheric pressure) for 60 hours. Later, the dew point reached -75 ° C, but the dew point did not decrease thereafter. Even after 300 hours had passed, the dew point remained at -75 ° C and did not reach -76 ° C.

本発明者等が作業室の外壁にヒーターを巻きつけ、ヒーターで壁を加熱してから、作業室内部の排気と、乾燥窒素ガスの供給を行ったところ、昼8時間の加熱、夜間冷却(及び排気と乾燥ガスの供給)することで、48時間後に露点−76.6℃、72時間後には露点−77.5℃に到達した。
このように、作業室を加熱しない場合に比べ、作業室を加熱した場合には、短時間で露点を下げることができる。
The inventors wound a heater around the outer wall of the work room, heated the wall with the heater, and then exhausted the interior of the work room and supplied dry nitrogen gas. In addition, the dew point reached −76.6 ° C. after 48 hours and the dew point −77.5 ° C. after 72 hours.
As described above, when the work chamber is heated, the dew point can be lowered in a short time as compared with the case where the work chamber is not heated.

係る知見に基づいて成された本発明は、作業室と、前記作業室の内部に配置された基板の表面に、液体を吐出するインクジェットプリンタとを有し、前記作業室の内部空間を外部雰囲気と遮断可能に構成された有機EL装置の製造装置であって、前記作業室を外部雰囲気に接続するメンテナンス終了後、基板を前記作業室に搬入する前に前記作業室を加熱する加熱装置を有する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記加熱装置は、前記作業室の壁に取り付けられた作業室加熱手段と、前記作業室内に加熱ガスを供給する加熱ガス供給装置のいずれか一方又は両方を有する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記加熱ガス供給装置は、前記供給室に接続されたガス供給系を有し、前記加熱ガスとして乾燥ガスを供給する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、搬送室と、前記搬送室内部に配置された搬送ロボットとを有し、前記搬送室は前記作業室に気密に接続された有機EL装置の製造装置である。
本発明は、作業室と、前記作業室内に配置された基板に封止材料を配置する封止材料供給装置とを有し、前記作業室の内部空間を外部雰囲気から遮断可能に構成された有機EL装置の製造装置であって、前記作業室を外部雰囲気に接続するメンテナンス終了後、基板を前記作業室に搬入する前に前記作業室を加熱する加熱装置を有する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記加熱装置は、前記作業室の壁に取り付けられた作業室加熱手段と、前記作業室内に加熱ガスを供給する加熱ガス供給装置のいずれか一方又は両方を有する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記加熱ガス供給装置は、前記供給室に接続されたガス供給系を有し、前記加熱ガスとして乾燥ガスを供給する有機EL装置の製造装置である。
本発明は、搬送室と、前記搬送室内部に配置された搬送ロボットとを有し、前記搬送室は前記作業室に気密に接続された有機EL装置の製造装置である。
本発明は、作業室と、貼り合わせ装置とを有し、前記貼り合わせ装置は、第一の基板を保持する第一の保持手段と、第二の基板を保持する第二の保持手段と、前記第一、第二の保持手段を相対的に移動させ、前記第一、第二の基板を貼り合わせる移動手段とを有し、前記作業室の内部空間を外部雰囲気から遮断可能に構成された有機EL装置の製造装置であって、前記作業室を外部雰囲気に接続するメンテナンス終了後、基板を前記作業室に搬入する前に前記作業室を加熱する加熱装置を有する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記第一、第二の基板の相対的な位置情報を検出する位置合わせ手段を有し、前記移動手段は前記位置合わせ手段が検出した位置情報に基づき、前記第一、第二の保持手段を水平面内で相対的に移動させる有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記加熱装置は、前記作業室の壁に取り付けられた作業室加熱手段と、前記作業室内に加熱ガスを供給する加熱ガス供給装置のいずれか一方又は両方を有する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、前記加熱ガス供給装置は、前記供給室に接続されたガス供給系を有し、前記加熱ガスとして乾燥ガスを供給する有機EL装置の製造装置である。
本発明は有機EL装置の製造装置であって、搬送室と、前記搬送室内部に配置された搬送ロボットとを有し、前記搬送室は前記作業室に気密に接続された有機EL装置の製造装置である。
The present invention based on such knowledge has a working chamber and an inkjet printer that discharges liquid onto the surface of a substrate disposed inside the working chamber, and the internal space of the working chamber is an external atmosphere. And an organic EL device manufacturing apparatus configured to be capable of being shut off, and having a heating device that heats the work chamber before carrying the substrate into the work chamber after completion of maintenance for connecting the work chamber to an external atmosphere. It is a manufacturing apparatus of an organic EL device.
The present invention is an apparatus for manufacturing an organic EL device, wherein the heating device is one of a working chamber heating means attached to a wall of the working chamber and a heating gas supply device for supplying a heating gas into the working chamber. Or it is a manufacturing apparatus of the organic EL device which has both.
The present invention is an apparatus for manufacturing an organic EL device, wherein the heating gas supply device has a gas supply system connected to the supply chamber, and supplies the dry gas as the heating gas. is there.
The present invention is an apparatus for manufacturing an organic EL device, which includes a transfer chamber and a transfer robot disposed in the transfer chamber, and the transfer chamber is airtightly connected to the work chamber. Device.
The present invention includes a work chamber and an organic material supply device configured to dispose a seal material on a substrate disposed in the work chamber, and configured to be able to block the internal space of the work chamber from an external atmosphere. An apparatus for manufacturing an EL device, which is an apparatus for manufacturing an organic EL device having a heating device for heating the work chamber before carrying the substrate into the work chamber after completion of maintenance for connecting the work chamber to an external atmosphere. .
The present invention is an apparatus for manufacturing an organic EL device, wherein the heating device is one of a working chamber heating means attached to a wall of the working chamber and a heating gas supply device for supplying a heating gas into the working chamber. Or it is a manufacturing apparatus of the organic EL device which has both.
The present invention is an apparatus for manufacturing an organic EL device, wherein the heating gas supply device has a gas supply system connected to the supply chamber, and supplies the dry gas as the heating gas. is there.
The present invention is a manufacturing apparatus of an organic EL device having a transfer chamber and a transfer robot arranged in the transfer chamber, the transfer chamber being hermetically connected to the work chamber.
The present invention includes a work chamber and a bonding apparatus, the bonding apparatus including a first holding means for holding a first substrate, a second holding means for holding a second substrate, The first and second holding means are relatively moved to move the first and second substrates together, and the internal space of the working chamber can be blocked from the external atmosphere. An apparatus for manufacturing an organic EL device, comprising: a heating device that heats the work chamber after carrying out maintenance for connecting the work chamber to an external atmosphere and before carrying a substrate into the work chamber. is there.
The present invention is an apparatus for manufacturing an organic EL device, comprising alignment means for detecting relative position information of the first and second substrates, wherein the moving means is position information detected by the alignment means. The organic EL device manufacturing apparatus moves the first and second holding means relative to each other in a horizontal plane.
The present invention is an apparatus for manufacturing an organic EL device, wherein the heating device is one of a working chamber heating means attached to a wall of the working chamber and a heating gas supply device for supplying a heating gas into the working chamber. Or it is a manufacturing apparatus of the organic EL device which has both.
The present invention is an apparatus for manufacturing an organic EL device, wherein the heating gas supply device has a gas supply system connected to the supply chamber, and supplies the dry gas as the heating gas. is there.
The present invention is an apparatus for manufacturing an organic EL device, which includes a transfer chamber and a transfer robot disposed in the transfer chamber, and the transfer chamber is airtightly connected to the work chamber. Device.

尚、本発明で、作業室加熱手段を設置する作業室の壁とは、作業室の天井、底面及び側壁を全て含む。作業室加熱手段は作業室の外壁面に設置してもよいし、内壁面に設置してもよい。
更に、作業室加熱手段を作業室の壁に埋設してもよいが、作業室加熱手段のメンテナンスの簡便性を考慮すると、内壁面又は外壁面に取り付けることが望ましい。また、不純物ガスの除去効率を考慮すると、作業室加熱手段を作業室の内壁面に取り付けることが望ましい。
In the present invention, the wall of the work room in which the work room heating means is installed includes all the ceiling, bottom surface, and side walls of the work room. The working chamber heating means may be installed on the outer wall surface of the working chamber or on the inner wall surface.
Furthermore, the working chamber heating means may be embedded in the wall of the working chamber, but it is desirable to attach it to the inner wall surface or the outer wall surface in consideration of the ease of maintenance of the working chamber heating means. In consideration of the removal efficiency of the impurity gas, it is desirable to attach the working chamber heating means to the inner wall surface of the working chamber.

本発明によれば、作業室の壁面に付着した不純物ガスは加熱によって除去されるため、作業室に不純物ガスが残留しない。製造工程で不純物ガスが混入しないので、有機EL装置の寿命が長くなる。   According to the present invention, since the impurity gas adhering to the wall surface of the work chamber is removed by heating, no impurity gas remains in the work chamber. Since the impurity gas is not mixed in the manufacturing process, the life of the organic EL device is extended.

第一の製造装置を説明する模式的な断面図Schematic cross-sectional view explaining the first manufacturing apparatus 第二の製造装置を説明する模式的な断面図Schematic cross-sectional view illustrating the second manufacturing apparatus 第三の製造装置を説明する模式的な断面図Schematic cross-sectional view for explaining the third manufacturing apparatus

符号の説明Explanation of symbols

1〜3……製造装置(第一〜第三の製造装置) 7a、7b……基板 加熱装置12a〜12c 15a〜15c……作業室加熱手段 16a〜16c……加熱ガス供給装置 17a〜17c……ガス供給系 20……インクジェットプリンタ 40……封止材料供給装置 50……貼り合わせ装置 51……第一の保持手段 52……第二の保持手段 55……移動手段 56……位置合わせ手段   1 to 3 ... Manufacturing equipment (first to third manufacturing equipment) 7a, 7b ... Substrate heating devices 12a to 12c 15a to 15c ... Work chamber heating means 16a to 16c ... Heated gas supply devices 17a to 17c ... ... Gas supply system 20 ... Inkjet printer 40 ... Sealing material supply device 50 ... Bonding device 51 ... First holding means 52 ... Second holding means 55 ... Moving means 56 ... Positioning means

図1〜3の符号1〜3は本発明第一〜第三の有機EL装置の製造装置をそれぞれ示している。第一〜第三の製造装置1〜3の同じ部材には、同じ符号に添え字a〜cを付して区別する。   Reference numerals 1 to 3 in FIGS. 1 to 3 denote manufacturing apparatuses for the first to third organic EL devices of the present invention, respectively. The same members of the first to third manufacturing apparatuses 1 to 3 are distinguished by adding the suffixes a to c to the same reference numerals.

第一〜第三の製造装置1〜3はそれぞれ搬送室31a〜31cと、作業室11a〜11cと、カセット室36a〜36cとを有している。
作業室11a〜11cとカセット室36a〜36cは扉8a〜8c、9a〜9cを介して搬送室31a〜31cに接続され、扉8a〜8c、9a〜9cを開けると、内部空間が搬送室31a〜31cの内部空間にそれぞれ接続される。
The first to third manufacturing apparatuses 1 to 3 have transfer chambers 31a to 31c, work chambers 11a to 11c, and cassette chambers 36a to 36c, respectively.
The working chambers 11a to 11c and the cassette chambers 36a to 36c are connected to the transfer chambers 31a to 31c via the doors 8a to 8c and 9a to 9c. To the internal spaces of .about.31c.

カセット室36a〜36cには不図示の搬出入口が設けられており、搬出入口を開けると、基板が収容されたカセットを搬出入可能になっており、搬出入口を閉めると、カセット室36a〜36cの内部空間が外部から遮断される。   The cassette chambers 36a to 36c are provided with unillustrated unloading / unloading openings. When the unloading / unloading opening is opened, the cassette containing the substrate can be loaded / unloaded, and when the unloading / unloading opening is closed, the cassette chambers 36a to 36c. The internal space of is blocked from the outside.

搬送室31a〜31cの内部には基板を搬送する搬送ロボット35a〜35cが配置されており、扉8a〜8c、9a〜9cを開けると、搬送ロボット35a〜35cによって、作業室11a〜11cとカセット室36a〜36cとの間で基板を搬送可能に構成されている。従って、基板は外部雰囲気に曝されずに、搬送室31a〜31cを通って作業室11a〜11cとカセット室36a〜36cとの間で搬送される。   Inside the transfer chambers 31a to 31c, transfer robots 35a to 35c for transferring the substrates are arranged. When the doors 8a to 8c and 9a to 9c are opened, the transfer robots 35a to 35c and the work chambers 11a to 11c and the cassette are arranged. The substrate can be transported between the chambers 36a to 36c. Accordingly, the substrate is transferred between the working chambers 11a to 11c and the cassette chambers 36a to 36c through the transfer chambers 31a to 31c without being exposed to the external atmosphere.

作業室11a〜11cには加熱装置12a〜12cが取り付けられ、作業室11a〜11cは加熱装置12a〜12cにより加熱される。
加熱装置12a〜12cは、作業室11a〜11cの壁を加熱する作業室加熱手段15a〜15cと、作業室11a〜11cの内部に加熱ガスを供給する加熱ガス供給装置16a〜16cのいずれか一方又は両方を有する。
作業室加熱手段15a〜15cは、作業室11a〜11c壁に密着して取り付けられている。
ここでは、作業室加熱手段15a〜15cは作業室11a〜11cの内側で、作業室11a〜11cの側壁と天井に取り付けられているが、作業室加熱手段15a〜15cの取り付け場所は特に限定されない。
作業室加熱手段15a〜15cは作業室11a〜11cの天井、底壁、側壁のうち1箇所以上に設けられていればよい。また、作業室加熱手段15a〜15cは作業室11a〜11cの内側(内壁面)と外側(外壁面)のいずれか、又は両方に設けることもできる。
Heating devices 12a to 12c are attached to the working chambers 11a to 11c, and the working chambers 11a to 11c are heated by the heating devices 12a to 12c.
The heating devices 12a to 12c are either one of working chamber heating means 15a to 15c for heating the walls of the working chambers 11a to 11c and a heating gas supply device 16a to 16c for supplying a heating gas to the inside of the working chambers 11a to 11c. Or have both.
The working chamber heating means 15a to 15c are attached in close contact with the walls of the working chambers 11a to 11c.
Here, the working chamber heating means 15a to 15c are attached to the side walls and the ceiling of the working chambers 11a to 11c inside the working chambers 11a to 11c, but the mounting locations of the working chamber heating means 15a to 15c are not particularly limited. .
The working chamber heating means 15a to 15c may be provided at one or more of the ceiling, bottom wall, and side walls of the working chambers 11a to 11c. Further, the working chamber heating means 15a to 15c can be provided on either or both of the inner side (inner wall surface) and the outer side (outer wall surface) of the working chambers 11a to 11c.

作業室加熱手段15a〜15cは、ヒーター(例えばシースヒーター)又は、温水循環パイプを有しており、ヒーターに通電するか、温水循環パイプ内に温水を通すと、作業室11a〜11cの壁の作業室加熱手段15a〜15cが取り付けられた部分が加熱される。   The working chamber heating means 15a to 15c have a heater (for example, a sheath heater) or a hot water circulation pipe. When the heater is energized or hot water is passed through the hot water circulation pipe, the walls of the working chambers 11a to 11c The part to which the working chamber heating means 15a to 15c are attached is heated.

作業室11a〜11cの壁は金属のような熱伝導物質(例えばステンレス)で構成されている。作業室11a〜11cの作業室加熱手段15a〜15cが取り付けられた部分が加熱されると、作業室11a〜11cの壁全体が熱伝導で昇温する。
作業室11a〜11cの壁が昇温すると、作業室11a〜11cの内壁面に付着した水や酸素がガス(蒸気を含む)となって作業室11a〜11cの内部空間に放出される。作業室11a〜11cには排気系19a〜19cが接続されており、作業室11a〜11c内部空間からガスを排出可能になっている。
The walls of the working chambers 11a to 11c are made of a heat conductive material such as metal (for example, stainless steel). When the portions of the working chambers 11a to 11c to which the working chamber heating means 15a to 15c are attached are heated, the entire walls of the working chambers 11a to 11c are heated by heat conduction.
When the temperature of the walls of the work chambers 11a to 11c rises, water and oxygen attached to the inner wall surfaces of the work chambers 11a to 11c become gas (including steam) and are released into the internal spaces of the work chambers 11a to 11c. Exhaust systems 19a to 19c are connected to the work chambers 11a to 11c, and gas can be discharged from the internal spaces of the work chambers 11a to 11c.

加熱ガス供給装置16a〜16cは、ガス供給系17a〜17cと、ガス加熱手段14a〜14cとを有している。
ガス供給系17a〜17cは、乾燥ガス(例えば乾燥窒素)が配置されたタンク41a〜41cと、一端がタンク41a〜41cに接続され、他端が作業室11a〜11c内に気密に挿通された配管42a〜42cとを有している。
ガス加熱手段14a〜14cは、タンク41a〜41cと配管42a〜42cのいずれか一方又は両方に取り付けられている。
ガス加熱手段14a〜14cは、例えばヒーターであって、ガス加熱手段14a〜14cに通電すると、タンク41a〜41cに配置された乾燥ガスは、タンク41a〜41cから作業室11a〜11c内へ移動する間に加熱される。従って、作業室11a〜11cの内部には加熱された乾燥ガス(加熱ガス)が供給される。
作業室11a〜11cの内壁面は、加熱された乾燥ガスに接触して加熱され、作業室11a〜11cの内壁面に付着した水や酸素がガスとなって放出される。 放出されたガスは、加熱された乾燥ガスによって押し流されるから、排気系19a〜19cにより作業室11a〜11cの外部に効率よく排出される。
作業室加熱手段15a〜15cと、加熱ガス供給装置16a〜16cはいずれか一方だけを用いてもよいが、作業室11a〜11cの内壁面に付着した水や酸素の排出効率が高い。
The heated gas supply devices 16a to 16c have gas supply systems 17a to 17c and gas heating means 14a to 14c.
The gas supply systems 17a to 17c have tanks 41a to 41c in which a dry gas (for example, dry nitrogen) is disposed, one end connected to the tanks 41a to 41c, and the other end airtightly inserted into the working chambers 11a to 11c. It has piping 42a-42c.
The gas heating means 14a to 14c are attached to any one or both of the tanks 41a to 41c and the pipes 42a to 42c.
The gas heating means 14a to 14c are heaters, for example. When the gas heating means 14a to 14c are energized, the dry gas disposed in the tanks 41a to 41c moves from the tanks 41a to 41c into the working chambers 11a to 11c. Heated in between. Accordingly, heated dry gas (heated gas) is supplied into the working chambers 11a to 11c.
The inner wall surfaces of the working chambers 11a to 11c are heated in contact with the heated dry gas, and water and oxygen attached to the inner wall surfaces of the working chambers 11a to 11c are released as gases. Since the released gas is swept away by the heated dry gas, it is efficiently discharged outside the working chambers 11a to 11c by the exhaust systems 19a to 19c.
Only one of the working chamber heating means 15a to 15c and the heated gas supply devices 16a to 16c may be used, but the discharge efficiency of water and oxygen attached to the inner wall surfaces of the working chambers 11a to 11c is high.

尚、ここでは、配管42a〜42cのうち、タンク41a〜41cと作業室11a〜11cとの間の部分にインラインフィルタ18a〜18cが設けられ、タンク41a〜41cに微粒子や不純物ガスが混入してたとしても、インラインフィルタ18a〜18cで除去される。   Here, in-line filters 18a to 18c are provided in portions of the pipes 42a to 42c between the tanks 41a to 41c and the working chambers 11a to 11c, and fine particles and impurity gases are mixed into the tanks 41a to 41c. Even if it is, it is removed by the in-line filters 18a to 18c.

次に、第一例〜第三の製造装置1〜3を用いて有機EL装置を製造する工程について説明する。
有機EL装置の製造を開始する前に、第一例〜第三の製造装置1〜3の作業室11a〜11cを外部雰囲気から遮断し、作業室11a〜11cの壁を加熱して、水や酸素を放出させる。
Next, the process of manufacturing an organic EL device using the first to third manufacturing apparatuses 1 to 3 will be described.
Before starting the manufacture of the organic EL device, the working chambers 11a to 11c of the first to third manufacturing devices 1 to 3 are blocked from the external atmosphere, the walls of the working chambers 11a to 11c are heated, Release oxygen.

作業室11a〜11cの壁を加熱しながら、加熱ガス供給装置16a〜16cから加熱された乾燥ガスを供給し、同時に、排気系19a〜19cによる排気を行い、作業室11a〜11cの内部のガスを置換する。
この時、作業室11a〜11cの内部圧力が、大気圧よりも僅かに陽圧になるよう、排気系19a〜19cの排気速度と、乾燥ガスの供給量を設定すれば、外部からの水分・酸素の混入が防止される。
しかし、作業室11a〜11c内で有毒物質を取り扱う場合は、作業室11a〜11cの内部圧力が、大気圧よりも僅かに負圧になるよう、排気系19a〜19cの排気速度と、乾燥ガスの供給量を設定すれば、作業室11a〜11cから外部への有毒物質の漏洩が防止される。
While heating the walls of the work chambers 11a to 11c, the heated gas supply devices 16a to 16c are supplied with the dried gas, and at the same time, exhaust is performed by the exhaust systems 19a to 19c. Is replaced.
At this time, if the exhaust speed of the exhaust systems 19a to 19c and the supply amount of the dry gas are set so that the internal pressure of the working chambers 11a to 11c is slightly positive than the atmospheric pressure, Oxygen contamination is prevented.
However, when handling toxic substances in the working chambers 11a to 11c, the exhaust speed of the exhaust systems 19a to 19c and the drying gas are set so that the internal pressure of the working chambers 11a to 11c is slightly negative than the atmospheric pressure. If the supply amount is set, leakage of toxic substances from the working chambers 11a to 11c to the outside is prevented.

いずれにしても、作業室11a〜11c内部を大気圧付近の圧力に保っておく事で、作業室11a〜11c内のガス(加熱された乾燥ガス)による熱伝導で作業室11a〜11c内部の隅々まで暖めて、水分等の不純物の離脱を促進することができ、作業室11a〜11c内部の雰囲気を素早く枯らすことができる。   In any case, by keeping the inside of the working chambers 11a to 11c at a pressure close to the atmospheric pressure, the heat inside the working chambers 11a to 11c (heated dry gas) is conducted by heat conduction in the working chambers 11a to 11c. It is possible to warm up every corner and promote the separation of impurities such as moisture, and the atmosphere inside the working chambers 11a to 11c can be quickly withered.

尚、作業室11a〜11c内部が真空になるよう排気すると、作業室加熱手段15a〜15cからの熱放射でしか暖まらないため、陰になる部分が暖まらず、それらの部分から不純物が離脱せず、作業室11a〜11cの内部を枯らすことができない。   Note that if the interiors of the work chambers 11a to 11c are evacuated to a vacuum, they are heated only by heat radiation from the work chamber heating means 15a to 15c, so that the shaded parts are not warmed, and impurities are not separated from those parts. The interior of the working chambers 11a to 11c cannot be withered.

作業室11a〜11cの壁を加熱する加熱時間はどれだけでも良いが、1サイクルの加熱は8時間以上であることが望ましい。加熱時間が少ないと、作業室11a〜11c内の隅々まで暖めることができず、不純物を十分に離脱させることができない。   Any heating time may be used for heating the walls of the working chambers 11a to 11c, but one cycle of heating is preferably 8 hours or more. When the heating time is short, it is impossible to warm up all the corners of the working chambers 11a to 11c, and the impurities cannot be sufficiently separated.

作業室11a〜11cを十分に加熱した後、作業室加熱手段15a〜15cと、ガス加熱手段14a〜14cを停止させ、作業室11a〜11cの壁の加熱と、乾燥ガスの加熱を終了する。
乾燥ガスを加熱せずに作業室11a〜11cに供給しながら、作業室11a〜11cの排気を続けて、作業室11a〜11cの壁の温度が下げることで、作業室11a〜11c内部の雰囲気を枯らすことができる(ガス置換工程)。
After sufficiently heating the working chambers 11a to 11c, the working chamber heating means 15a to 15c and the gas heating means 14a to 14c are stopped, and the heating of the walls of the working chambers 11a to 11c and the heating of the dry gas are finished.
While supplying the dry gas to the work chambers 11a to 11c without heating, the exhaust of the work chambers 11a to 11c is continued, and the temperature of the walls of the work chambers 11a to 11c is lowered, so that the atmosphere inside the work chambers 11a to 11c Can be withered (gas replacement step).

作業室11a〜11c内部の雰囲気が露点−76℃(水分濃度1ppm)、或いは作業者の望むレベルまで到達しない場合は、加熱工程とガス置換工程とを2回以上繰り返して雰囲気を枯らす。   When the atmosphere inside the working chambers 11a to 11c does not reach a dew point of -76 ° C. (moisture concentration of 1 ppm) or a level desired by the worker, the heating process and the gas replacement process are repeated twice or more to dry the atmosphere.

表面に電極やトランジスタ等が形成された基板をカセットに収容し、該カセットを第一の製造装置1のカセット室36aの内部に配置する。
第一の製造装置1の作業室11a内部には、ステージ21と、インクジェットプリンタ20とが配置されている。
インクジェットプリンタ20は印刷ヘッド25を有しており、印刷ヘッド25は保持手段26によって、ステージ21の上方でステージ21から離間して配置されている。
A substrate having electrodes, transistors and the like formed on the surface is accommodated in a cassette, and the cassette is placed inside the cassette chamber 36a of the first manufacturing apparatus 1.
Inside the work chamber 11a of the first manufacturing apparatus 1, a stage 21 and an ink jet printer 20 are arranged.
The ink jet printer 20 includes a print head 25, and the print head 25 is disposed above the stage 21 and separated from the stage 21 by a holding unit 26.

作業室11a内を排気しながら、乾燥ガスを加熱せずに供給し、乾燥した作業雰囲気を維持する。該作業雰囲気を維持しながら、基板をカセット室36aから作業室11a内部に搬入し、該基板をステージ21上に配置し、扉9aを閉めて作業室11aの内部空間を搬送室31aから遮断する。   While exhausting the inside of the working chamber 11a, the drying gas is supplied without heating to maintain a dry working atmosphere. While maintaining the work atmosphere, the substrate is carried into the work chamber 11a from the cassette chamber 36a, the substrate is placed on the stage 21, the door 9a is closed, and the internal space of the work chamber 11a is shut off from the transfer chamber 31a. .

図1はステージ21上に基板7aが配置された状態を示している。
印刷ヘッド25は有機材料供給系28に接続されており、有機材料供給系28から、有機材料(発光材料、電荷輸送材料、電子輸送材料、色素等)を含む原料液を印刷ヘッド25に供給する。
FIG. 1 shows a state in which the substrate 7 a is arranged on the stage 21.
The print head 25 is connected to an organic material supply system 28, and a raw material liquid containing an organic material (light emitting material, charge transport material, electron transport material, dye, etc.) is supplied from the organic material supply system 28 to the print head 25. .

印刷ヘッド25とステージ21のいずれか一方又は両方は不図示の移動手段に取り付けられている。
印刷ヘッド25とステージ21のいずれか一方又は両方を移動させ、ステージ21上の基板7aと、印刷ヘッド25とを相対的に移動させる。印刷ヘッド25のノズル孔が、基板7a表面の所定位置上に位置したところでノズル孔から原料液を吐出し、基板7a表面に着弾させて、有機材料層を形成する。
有機材料層が形成される間、作業室11a〜11cの内部に、上述した作業雰囲気を維持しておけば、有機材料層には、水分や酸素等が混入せず、膜室が劣化しない。
One or both of the print head 25 and the stage 21 are attached to a moving means (not shown).
Either one or both of the print head 25 and the stage 21 are moved, and the substrate 7a on the stage 21 and the print head 25 are relatively moved. When the nozzle hole of the print head 25 is positioned on a predetermined position on the surface of the substrate 7a, the raw material liquid is discharged from the nozzle hole and landed on the surface of the substrate 7a to form an organic material layer.
If the working atmosphere described above is maintained inside the working chambers 11a to 11c while the organic material layer is formed, moisture, oxygen and the like are not mixed in the organic material layer, and the film chamber does not deteriorate.

移動と吐出とを繰り返し、基板7aの所定位置に有機材料層を形成し終わってから、基板7aを作業室11aからカセット室36aに戻して、カセットに収容し、新たな基板7aをカセット室36aから作業室11aに搬入して基板7aを交換する。   After the movement and the discharge are repeated and the organic material layer is formed at a predetermined position of the substrate 7a, the substrate 7a is returned from the working chamber 11a to the cassette chamber 36a, accommodated in the cassette, and a new substrate 7a is accommodated in the cassette chamber 36a. Are carried into the working chamber 11a and the substrate 7a is exchanged.

有機材料層の形成と、基板7aの交換とを繰り返し、所定枚数の基板7aに有機材料層を形成した後、カセット室36aからカセットを取り出す。
そのカセットを、直接第一の製造装置1から第二の製造装置2のカセット室36bに搬入する。又は、第一の製造装置1から他の装置へ搬入して各基板7aに処理を行ってから、第二の製造装置2のカセット室36bへ搬入する。カセットをカセット室36bに搬入後は、該カセット室36bを外部雰囲気から遮断する。
After the formation of the organic material layer and the replacement of the substrate 7a are repeated to form the organic material layer on a predetermined number of substrates 7a, the cassette is taken out from the cassette chamber 36a.
The cassette is carried directly from the first manufacturing apparatus 1 into the cassette chamber 36b of the second manufacturing apparatus 2. Or after carrying in from the 1st manufacturing apparatus 1 to another apparatus and processing each board | substrate 7a, it carries in into the cassette chamber 36b of the 2nd manufacturing apparatus 2. FIG. After carrying the cassette into the cassette chamber 36b, the cassette chamber 36b is shut off from the external atmosphere.

第二の製造装置2の作業室11b内部には、ステージ38と、封止材料供給装置40とが配置されている。
作業室11bを排気しながら、乾燥ガスを加熱せずに供給し、乾燥した作業雰囲気を形成する。該作業雰囲気を維持したまま、有機材料層が形成された基板7aをカセット室36bから作業室11bに搬入し、ステージ38上に配置する。
A stage 38 and a sealing material supply device 40 are disposed inside the work chamber 11 b of the second manufacturing apparatus 2.
While exhausting the working chamber 11b, the drying gas is supplied without heating to form a dry working atmosphere. While maintaining the working atmosphere, the substrate 7a on which the organic material layer is formed is carried into the working chamber 11b from the cassette chamber 36b and placed on the stage 38.

封止材料は、ペースト状や固体状である。ここでは、封止材料はペースト状であって、封止材料供給装置40はディスペンサー45を有しており、ディスペンサー45は封止材料供給系41に接続され、ペースト状の封止材料が供給される。   The sealing material is pasty or solid. Here, the sealing material is in a paste form, and the sealing material supply device 40 includes a dispenser 45, and the dispenser 45 is connected to the sealing material supply system 41 and supplied with the paste-like sealing material. The

ディスペンサー45と、ステージ38のいずれか一方又は両方は不図示の移動手段に接続されている。
ディスペンサー45とステージ38のいずれか一方又は両方を移動させ、ステージ38上の基板7aと、ディスペンサー45とを相対的に移動させながら、ディスペンサー45のノズル孔から封止材料を押し出して基板7a表面に塗布し、基板7a表面の各有機材料層が形成された領域(発光領域)を取り囲むように、リング状の封止材料層を形成する。
封止材料層を形成する間、上述した作業雰囲気を維持しておけば、基板7a表面に形成された有機材料層が劣化しない。
One or both of the dispenser 45 and the stage 38 are connected to a moving means (not shown).
Either or both of the dispenser 45 and the stage 38 are moved, and while the substrate 7a on the stage 38 and the dispenser 45 are relatively moved, the sealing material is pushed out from the nozzle holes of the dispenser 45 to the surface of the substrate 7a. The ring-shaped sealing material layer is formed so as to surround the region (light emitting region) where each organic material layer is formed on the surface of the substrate 7a.
If the working atmosphere described above is maintained while the sealing material layer is formed, the organic material layer formed on the surface of the substrate 7a does not deteriorate.

尚、封止材料が固体の場合(例えば棒状)、封止材料供給装置40は、発光領域よりも外側で、発光領域の縁に沿って基板7a表面に封止材料を配置し、発光領域を取り囲む封止材料層を形成する。   In the case where the sealing material is solid (for example, a rod shape), the sealing material supply device 40 arranges the sealing material on the surface of the substrate 7a along the edge of the light emitting region outside the light emitting region. A surrounding encapsulating material layer is formed.

封止材料層が形成された状態の基板7aを新たな基板7aと交換し、封止材料層の形成と、基板7aの交換とを繰り返し、所定枚数の基板7aに封止材料層が形成されたところでカセットを取り出す。   The substrate 7a on which the sealing material layer is formed is replaced with a new substrate 7a, and the formation of the sealing material layer and the replacement of the substrate 7a are repeated, so that the sealing material layer is formed on a predetermined number of substrates 7a. Remove the cassette.

第三の製造装置3のカセット室36cの内部に、封止材料層が形成された基板7aが収容されたカセットと、貼り合わせ対象の基板が収容されたカセットとを配置してから、カセット室36cを外部雰囲気から遮断する。
作業室11c内を排気しながら、乾燥ガスを加熱せずに供給し、乾燥した作業雰囲気を形成する。該作業雰囲気を維持したまま、封止材料層が形成された基板7aと、貼り合わせ対象の基板とをカセット室36cから作業室11c内部に搬入する。
The cassette chamber 36c of the third manufacturing apparatus 3 is provided with a cassette containing a substrate 7a on which a sealing material layer is formed and a cassette containing a substrate to be bonded. 36c is shielded from the external atmosphere.
While exhausting the inside of the working chamber 11c, the drying gas is supplied without heating to form a dry working atmosphere. While maintaining the work atmosphere, the substrate 7a on which the sealing material layer is formed and the substrate to be bonded are carried into the work chamber 11c from the cassette chamber 36c.

第三の製造装置3の作業室11c内部には貼り合わせ装置50が配置されており、貼り合わせ装置50は、第一、第二の保持手段51、52と、位置合わせ手段56と、移動手段55とを有している。
封止材料層が形成された基板7aと、貼り合わせ対象の基板とを、封止材料層が形成された側の面と、貼り合わせられる側の面が対向するように向けた状態で、第一、第二の保持手段51、52に保持させる。
A laminating device 50 is disposed inside the work chamber 11c of the third manufacturing apparatus 3. The laminating device 50 includes first and second holding means 51 and 52, an alignment means 56, and a moving means. 55.
In the state where the substrate 7a on which the sealing material layer is formed and the substrate to be bonded are oriented so that the surface on which the sealing material layer is formed and the surface to be bonded face each other. The first and second holding means 51 and 52 hold it.

図3は基板7a、7bが第一、第二の保持手段51、52に保持された状態を示している。
この状態の基板7a、7bの向きや配置は特に限定されないが、封止材料層と基板7aとの接着性が低い場合には、封止材料層が配置された側の面を上側に向けて基板7aを略水平配置し、その基板7a上に、貼り合わせ対象の基板7bを、貼り合わされる側の面を下側に向けて配置する。
FIG. 3 shows a state in which the substrates 7 a and 7 b are held by the first and second holding means 51 and 52.
The orientation and arrangement of the substrates 7a and 7b in this state are not particularly limited. However, when the adhesiveness between the sealing material layer and the substrate 7a is low, the surface on which the sealing material layer is arranged faces upward. The substrate 7a is disposed substantially horizontally, and the substrate 7b to be bonded is disposed on the substrate 7a with the surface to be bonded facing downward.

位置あわせ手段56は、例えばCCDカメラ等であって、第一、第二の保持手段51、52に保持された基板7a、7bを観察し、その位置情報を検出する。
移動手段55と、位置合わせ手段56は制御装置59に接続されており、位置あわせ手段56が検出した位置情報は制御装置59に伝達される。
The alignment means 56 is a CCD camera or the like, for example, and observes the substrates 7a and 7b held by the first and second holding means 51 and 52 and detects the position information.
The moving means 55 and the alignment means 56 are connected to the control device 59, and the position information detected by the alignment means 56 is transmitted to the control device 59.

移動手段55は、第一、第二の保持手段51、52のいずれか一方又は両方を、水平面内で移動及び回転可能に構成されている。第一、第二の保持手段51、52に保持された基板7a、7bは第一、第二の保持手段51、52と一緒に移動するから、基板7a、7bは水平面内で相対的に移動又は回転する。   The moving means 55 is configured to be able to move and rotate either one or both of the first and second holding means 51 and 52 within a horizontal plane. Since the substrates 7a and 7b held by the first and second holding means 51 and 52 move together with the first and second holding means 51 and 52, the substrates 7a and 7b move relatively in a horizontal plane. Or rotate.

制御装置59は伝達された位置情報に基づき、移動手段55を動作させ、基板7a、7bを水平面内で回転及び/又は移動させ、基板7a、7bを位置合わせする。
移動手段55は、水平方向の移動と回転に加え、第一、第二の保持手段51、52のいずれか一方又は両方を上下方向にも相対的に移動可能に構成されている。
Based on the transmitted position information, the control device 59 operates the moving means 55 to rotate and / or move the substrates 7a and 7b in the horizontal plane, thereby aligning the substrates 7a and 7b.
The moving means 55 is configured to be able to relatively move one or both of the first and second holding means 51 and 52 in the vertical direction in addition to the horizontal movement and rotation.

制御装置59は、基板7a、7bを位置合わせした状態で、第一、第二の保持手段51、52を上下に相対的に移動させて基板7a、7bを近づけ、封止材料層を貼り合わせ対象の基板7bに密着させ、基板7a、7bを封止材料層を挟んで貼り合わせる。   In a state where the substrates 7a and 7b are aligned, the control device 59 moves the first and second holding means 51 and 52 relatively up and down to bring the substrates 7a and 7b closer together and attach the sealing material layer. The substrates 7a and 7b are bonded to each other with the sealing material layer sandwiched between the target substrates 7b.

第三の製造装置3の作業室11c内部には、不図示の硬化手段が配置されている。
硬化手段は、封止材料層が紫外線硬化型樹脂を含有する場合は封止材料層に紫外線を照射し、熱硬化性樹脂を含有する場合は封止材料層を加熱し、封止材料層中の樹脂を重合させて硬化させる。
Inside the work chamber 11c of the third manufacturing apparatus 3, curing means (not shown) is arranged.
The curing means irradiates the sealing material layer with ultraviolet rays when the sealing material layer contains an ultraviolet curable resin, and heats the sealing material layer when the sealing material layer contains a thermosetting resin. The resin is polymerized and cured.

また、封止材料層がガラスや熱可塑性樹脂等の溶融材料を含有する場合、硬化手段は、封止材料層を加熱溶融させ、基板7a、7bとの密着性を高めた後、封止材料層を冷却(自然冷却を含む)して固化させる。   Further, when the sealing material layer contains a melting material such as glass or thermoplastic resin, the curing means heats and melts the sealing material layer to improve the adhesion to the substrates 7a and 7b, and then the sealing material. The layer is cooled (including natural cooling) to solidify.

従って、基板7a、7bは硬化又は固化した封止材料層によって互いに固定される。
基板7a、7bが固定された状態の有機EL装置を、作業室11cからカセット室36cへ搬出し、新たな基板7a、7bを作業室11cに搬入する。
Accordingly, the substrates 7a and 7b are fixed to each other by the cured or solidified sealing material layer.
The organic EL device in which the substrates 7a and 7b are fixed is carried out from the work chamber 11c to the cassette chamber 36c, and new substrates 7a and 7b are carried into the work chamber 11c.

基板7a、7bを貼り合わせて固定する工程と、有機EL装置の搬出と、新たな基板7a、7bの搬入とを繰り返し、所定枚数の基板7a、7bを貼り合わせて有機EL装置を作成した後、カセット室36cからカセットを取り出せば、有機EL装置が外部に取り出される。
基板7a、7bを貼りあわせて固定する工程と、有機EL装置の搬出と、新たな基板7a、7bの搬入等の全ての工程で、上述した作業雰囲気を維持しておけば、基板7aに形成された有機材料層が劣化しない。
After the step of bonding and fixing the substrates 7a and 7b, the unloading of the organic EL device, and the loading of new substrates 7a and 7b are repeated, and a predetermined number of substrates 7a and 7b are bonded together to create the organic EL device If the cassette is taken out from the cassette chamber 36c, the organic EL device is taken out.
If the working atmosphere described above is maintained in all steps such as bonding and fixing the substrates 7a and 7b, unloading of the organic EL device, and loading of the new substrates 7a and 7b, the substrate 7a is formed. The formed organic material layer does not deteriorate.

上述したように、封止材料層は有機材料層が形成された発光領域を取り囲むリング状に形成されているから、有機材料層は基板7a、7bと、硬化又は固化された封止材料層で取り囲まれている。従って、有機材料層は外部雰囲気から遮断され、水分や酸素が進入しない。   As described above, since the sealing material layer is formed in a ring shape surrounding the light emitting region where the organic material layer is formed, the organic material layer is the cured material or solidified sealing material layer. Surrounded. Therefore, the organic material layer is shielded from the external atmosphere, and moisture and oxygen do not enter.

しかも、上述したように、有機材料層を形成する工程と、封止材料層を形成する工程と、基板7a、7bを貼り合せて固定する工程は、予め水等の不純物ガスが取り除かれた作業室11a〜11c内部で行われるため、製造工程で有機材料層に不純物ガスが混入しない。   Moreover, as described above, the step of forming the organic material layer, the step of forming the sealing material layer, and the step of bonding and fixing the substrates 7a and 7b are operations in which an impurity gas such as water is previously removed. Since the process is performed inside the chambers 11a to 11c, no impurity gas is mixed into the organic material layer in the manufacturing process.

従って、不純物ガスによる有機材料層の劣化が起こらず、有機EL装置の寿命が長くなる。
有機EL装置の製造を続けると、例えば、印刷ヘッド25やディスペンサー45の洗浄や交換、有機材料供給系28への原料液の充填等、作業室11a〜11c内部のメンテナンスが必要となる。作業室11a〜11c内部のメンテナンスを行う際には、基板7a、7bを搬出して、一旦有機EL装置の製造を停止する。
Therefore, the organic material layer is not deteriorated by the impurity gas, and the life of the organic EL device is extended.
If the production of the organic EL device is continued, maintenance inside the working chambers 11a to 11c such as cleaning and replacement of the print head 25 and the dispenser 45 and filling of the raw material liquid into the organic material supply system 28 becomes necessary. When performing maintenance inside the working chambers 11a to 11c, the substrates 7a and 7b are unloaded and the production of the organic EL device is temporarily stopped.

メンテナンス作業を行う際には、通常、作業室11a〜11cの内部空間を外部雰囲気に接続するため、作業室11a〜11cの内部に大気が入り込み、大気中の水や酸素等の不純物が作業室11a〜11cの内壁面に付着する。   When performing maintenance work, the interior spaces of the work chambers 11a to 11c are usually connected to the external atmosphere, so that air enters the work chambers 11a to 11c, and impurities such as water and oxygen in the air are in the work chamber. It adheres to the inner wall surface of 11a-11c.

メンテナンス終了後、少なくとも基板7a、7bを作業室11a〜11cに搬入する前に、上述したように、作業室11内部の雰囲気が露点−76℃(水分濃度1ppm)、或いは作業者の望むレベルまで到達するまで、作業室11a〜11cを加熱しながらガスを置換して、作業雰囲気を形成する。   After the maintenance is completed, before carrying at least the substrates 7a and 7b into the work chambers 11a to 11c, as described above, the atmosphere in the work chamber 11 is dew point -76 ° C. (water concentration 1 ppm) or a level desired by the operator. The working atmosphere is formed by replacing the gas while heating the working chambers 11a to 11c until it reaches.

尚、メンテナンス終了から、作業室11a〜11cの壁の加熱を開始するまでの間、或いは作業室11a〜11cの壁の加熱を開始してから所定時間、乾燥ガスを供給せずに作業室11a〜11c内部を排気してもよい。
この場合、最初の1回のガス置換で作業室11a〜11c内部に入り込んだ大気の大部分を置換することができ、効率が良い。しかし、その後は、上述したように、作業室11a〜11cの壁を加熱しながら、排気と、乾燥ガスの供給を行い、作業室11a〜11c内部のガスを乾燥ガスに置換することが望ましい。
作業室11a〜11cの壁を作業室加熱手段15a〜15cで加熱しながら、乾燥ガスを加熱せずに供給してもよい。更に、作業室加熱手段15a〜15cで加熱せずに、加熱した乾燥ガスを供給することで、作業室11を加熱してもよい。
いずれの場合も、作業室11a〜11c加熱終了後、作業室11a〜11cを排気しながら、乾燥ガスを加熱せずに供給し、作業雰囲気を形成する。
該作業雰囲気が形成されてから、基板7a、7bを搬入して、有機材料層の形成、封止材料層の形成、及び、基板7a、7bの貼り合わせを再開する。
It should be noted that the working chamber 11a is supplied without supplying dry gas for a predetermined time after the maintenance is completed until the heating of the walls of the working chambers 11a to 11c is started, or after the heating of the walls of the working chambers 11a to 11c is started. The inside of ˜11c may be exhausted.
In this case, most of the atmosphere that has entered the working chambers 11a to 11c can be replaced by the first gas replacement, which is efficient. However, after that, as described above, while heating the walls of the working chambers 11a to 11c, it is desirable to supply exhaust gas and supply dry gas, and replace the gas inside the working chambers 11a to 11c with dry gas.
The drying gas may be supplied without heating while heating the walls of the working chambers 11a to 11c with the working chamber heating means 15a to 15c. Furthermore, you may heat the working chamber 11 by supplying the heated dry gas, without heating with the working chamber heating means 15a-15c.
In any case, after the heating of the working chambers 11a to 11c is completed, the working chambers 11a to 11c are exhausted and the dry gas is supplied without heating to form a working atmosphere.
After the working atmosphere is formed, the substrates 7a and 7b are carried in, and the formation of the organic material layer, the formation of the sealing material layer, and the bonding of the substrates 7a and 7b are resumed.

尚、印刷ヘッド25と有機材料供給系28、及びディスペンサー45と封止材料供給系41の間にはバルブ29、49がそれぞれ設けられている。
作業室11a〜11cを大気圧よりも低い減圧雰囲気(真空雰囲気を含む)になるよう排気する場合は、バルブ29、49を閉じておき、乾燥ガスを供給して、作業室11a〜11cの内部空間が所定圧力以上に上昇してから、バルブ29、49を空け、印刷ヘッド25やディスペンサー45に、原料液や封止材料を供給すれば、排気中に原料液や封止材料が作業室11a〜11cの内部空間に噴出されない。
Valves 29 and 49 are provided between the print head 25 and the organic material supply system 28 and between the dispenser 45 and the sealing material supply system 41, respectively.
When exhausting the work chambers 11a to 11c to a reduced pressure atmosphere (including a vacuum atmosphere) lower than the atmospheric pressure, the valves 29 and 49 are closed and a dry gas is supplied to the interior of the work chambers 11a to 11c. After the space rises to a predetermined pressure or higher, the valves 29 and 49 are opened, and the raw material liquid and the sealing material are supplied to the print head 25 and the dispenser 45. It is not ejected to the internal space of ˜11c.

乾燥ガスは乾燥窒素ガスに限定されず、有機材料を化学的に劣化しないガスであればArガス等種々のガスを用いることができる。例えば、酸素の存在が問題にならない場合には、酸素を含む乾燥ガス(例えば乾燥空気)を用いることもできる。これらの乾燥ガスは1種だけを作業室11a〜11cに供給してもよいし、2種以上を作業室11a〜11cに供給してもよい。
また、作業室11a〜11cを加熱する際に供給する加熱ガスと、加熱終了後、作業雰囲気を形成する際に供給する作業用ガスとで、乾燥ガスの種類を変えてもよいし、同じにしてもよい。
作業室11a〜11cの壁は熱伝導性の高い物質で構成することが望ましいが、少なくとも一部に、ガラス等の透明板をはめ込んで、のぞき窓を作ってもよい。
The dry gas is not limited to dry nitrogen gas, and various gases such as Ar gas can be used as long as the gas does not chemically degrade the organic material. For example, when the presence of oxygen is not a problem, a dry gas containing oxygen (for example, dry air) can be used. Only one type of these dry gases may be supplied to the working chambers 11a to 11c, or two or more types may be supplied to the working chambers 11a to 11c.
Further, the type of dry gas may be changed between the heating gas supplied when heating the working chambers 11a to 11c and the working gas supplied when forming the working atmosphere after the heating is finished, or the same. May be.
Although it is desirable that the walls of the working chambers 11a to 11c be made of a material having high thermal conductivity, a viewing window may be made by inserting a transparent plate such as glass into at least a part thereof.

作業室11a〜11cの加熱は、壁温度が60℃以上80℃以下になるよう加熱することが望ましい。60℃未満では水分除去が十分に行われず、80℃を超えると安全性に問題が生じる。   It is desirable to heat the working chambers 11a to 11c so that the wall temperature is 60 ° C. or higher and 80 ° C. or lower. If it is less than 60 ° C., moisture removal is not sufficiently performed, and if it exceeds 80 ° C., there is a problem in safety.

作業室11a〜11cの加熱は、基板7a、7bを作業室11a〜11cに搬入する前だけでなく、基板を作業室11a〜11cに配置した状態で行ってもよい。しかし、基板7a、7bに有機EL層等耐熱性の低い膜が形成されている場合には、基板7a、7bを搬入する前に加熱を終了させ、作業室11a〜11cの内部温度を所定温度(例えば有機EL層を構成する有機材料が分解されない温度)以下まで低下させておく必要がある。
更に、第一〜第三の製造装置1〜3を不図示の搬送室に接続して、該搬送室を介して、基板7a、7bを大気に曝さずに、第一〜第三の製造装置1〜3間で搬送可能にしてもよい。
The working chambers 11a to 11c may be heated not only before the substrates 7a and 7b are carried into the working chambers 11a to 11c but also in a state where the substrates are arranged in the working chambers 11a to 11c. However, when films having low heat resistance such as organic EL layers are formed on the substrates 7a and 7b, heating is terminated before the substrates 7a and 7b are loaded, and the internal temperatures of the working chambers 11a to 11c are set to a predetermined temperature. It is necessary to reduce it to below (for example, the temperature at which the organic material constituting the organic EL layer is not decomposed).
Furthermore, the first to third manufacturing apparatuses 1 to 3 are connected to a transfer chamber (not shown), and the substrates 7a and 7b are not exposed to the atmosphere via the transfer chamber. It may be possible to convey between 1 and 3.

以上は、有機材料層を形成してから、基板7aに封止材料層を形成する場合について説明したが、本発明はこれに限定されるものではなく、第二の製造装置2で封止材料層を形成してから、第一の製造装置1で有機材料層を形成してもよい。   In the above, the case where the organic material layer is formed and then the sealing material layer is formed on the substrate 7a has been described. However, the present invention is not limited to this, and the second manufacturing apparatus 2 uses the sealing material. After forming the layer, the organic material layer may be formed by the first manufacturing apparatus 1.

また、有機材料層を形成する基板7aに封止材料層を設けず、貼り合わせ対象の基板7bに封止材料層を配置して、基板7a、7b同士を貼り合わせてもよいし、有機材料層を形成する基板7aと、貼り合わせ対象の基板7bの両方に封止材料層を配置してから、基板7a、7b同士を貼り合わせてよい。
基板7a、7bの材質も特に限定されず、ガラス基板、プラスチック基板、セラミック基板等を用いることができる。
Alternatively, the sealing material layer may be disposed on the substrate 7b to be bonded without providing the sealing material layer on the substrate 7a on which the organic material layer is formed, and the substrates 7a and 7b may be bonded to each other. After the sealing material layer is disposed on both the substrate 7a for forming the layer and the substrate 7b to be bonded, the substrates 7a and 7b may be bonded to each other.
The material of the substrates 7a and 7b is not particularly limited, and a glass substrate, a plastic substrate, a ceramic substrate, or the like can be used.

作業室11a〜11c内部で基板7a〜7cを処理するときの圧力は特に限定されないが、有機材料層を形成する際には、印刷ヘッド25のノズルのメニスカスが乱れないように、大気圧にすることが望ましく、基板7a、7cを貼り合わせる際には、大気圧よりも低い圧力の作業雰囲気で行うことが望ましい。   The pressure when processing the substrates 7a to 7c inside the working chambers 11a to 11c is not particularly limited, but when forming the organic material layer, the pressure is set to atmospheric pressure so that the meniscus of the nozzles of the print head 25 is not disturbed. It is desirable that the substrates 7a and 7c be bonded in a working atmosphere at a pressure lower than atmospheric pressure.

以上は、有機材料層の形成と、封止材料層の形成と、基板7a、7bの貼り合わせ及び固定を、別々の作業室11a〜11c内部で行う場合について説明したが、本発明はこれに限定されるものではない。   In the above, the case where the formation of the organic material layer, the formation of the sealing material layer, and the bonding and fixing of the substrates 7a and 7b are performed inside the separate working chambers 11a to 11c has been described. It is not limited.

インクジェットプリンタ20と、封止材料供給装置40と、貼り合わせ装置50のうち、少なくとも2つ以上の装置を同じ作業室内部に配置し、有機材料層の形成と、封止材料層の形成と、基板7a、7bの貼り合わせ及び固定のうち、2つ以上の工程を同じ作業室内部で行ってもよい。   Among the inkjet printer 20, the sealing material supply device 40, and the bonding device 50, at least two or more devices are arranged in the same working chamber, forming an organic material layer, forming a sealing material layer, Of the bonding and fixing of the substrates 7a and 7b, two or more steps may be performed in the same working chamber.

特に、封止材料供給装置40と貼り合わせ装置50のように、連続して行う工程に用いる装置を同じ作業室内部に配置すれば、基板7a、7bの搬出入に要する時間が短縮されるだけでなく、基板7a、7bが外部雰囲気に曝される危険性が低くなるためより望ましい。   In particular, if devices used for successive processes, such as the sealing material supply device 40 and the bonding device 50, are arranged in the same work chamber, the time required to carry in and out the substrates 7a and 7b is shortened. In addition, it is more desirable because the risk that the substrates 7a and 7b are exposed to the external atmosphere is reduced.

この場合、作業室内部に基板7a、7bを搬出する搬出ロボットを設け、作業室内部で基板を搬送するようにしてもよい。
更に、作業室11a〜11cの壁を加熱しながら、作業室11a〜11cの内部を連続排気し、乾燥ガスを供給せずに作業室11a〜11bを加熱してもよい。しかし、前述のように、この場合は不純物の除去効率は低下する。
In this case, an unloading robot for unloading the substrates 7a and 7b may be provided inside the work chamber, and the substrate may be transferred inside the work chamber.
Further, while heating the walls of the working chambers 11a to 11c, the insides of the working chambers 11a to 11c may be continuously exhausted, and the working chambers 11a to 11b may be heated without supplying the dry gas. However, as described above, in this case, the impurity removal efficiency decreases.

また、乾燥ガスを供給するガス供給系と、排気系とを、搬送室31a〜31cと、カセット室36a〜36cのいずれか一方又は両方に接続してもよい。   In addition, a gas supply system that supplies a dry gas and an exhaust system may be connected to one or both of the transfer chambers 31a to 31c and the cassette chambers 36a to 36c.

基板7a、7bを作業室11a〜11cに搬入する前に、搬送室31a〜31cとカセット室36a〜36cの内部を排気しながら乾燥ガスを供給しておけば、基板7a、7bを作業室11に搬入する際に、搬送室31a〜31やカセット室36a〜36cから入り込む不純物ガスの量が少なくなる。
If the drying gas is supplied while exhausting the inside of the transfer chambers 31a to 31c and the cassette chambers 36a to 36c before the substrates 7a and 7b are carried into the work chambers 11a to 11c, the substrates 7a and 7b are moved to the work chamber 11. The amount of impurity gas entering from the transfer chambers 31a to 31 and the cassette chambers 36a to 36c is reduced when being carried into the container.

Claims (13)

作業室と、
前記作業室の内部に配置された基板の表面に、液体を吐出するインクジェットプリンタとを有し、
前記作業室の内部空間を外部雰囲気と遮断可能に構成された有機EL装置の製造装置であって、
前記作業室を外部雰囲気に接続するメンテナンス終了後、基板を前記作業室に搬入する前に前記作業室を加熱する加熱装置を有する有機EL装置の製造装置。
A working room,
An inkjet printer that discharges liquid on the surface of the substrate disposed inside the working chamber;
An apparatus for manufacturing an organic EL device configured to be able to block the internal space of the working chamber from an external atmosphere,
An apparatus for manufacturing an organic EL device, comprising: a heating device that heats the work chamber after the completion of maintenance for connecting the work chamber to an external atmosphere and before the substrate is carried into the work chamber.
前記加熱装置は、前記作業室の壁に取り付けられた作業室加熱手段と、
前記作業室内に加熱ガスを供給する加熱ガス供給装置のいずれか一方又は両方を有する請求項1記載の有機EL装置の製造装置。
The heating device includes a working chamber heating means attached to the wall of the working chamber,
The apparatus for manufacturing an organic EL device according to claim 1, comprising one or both of heating gas supply devices for supplying a heating gas into the work chamber.
前記加熱ガス供給装置は、前記供給室に接続されたガス供給系を有し、
前記加熱ガスとして乾燥ガスを供給する請求項2記載の有機EL装置の製造装置。
The heated gas supply device has a gas supply system connected to the supply chamber,
The apparatus for manufacturing an organic EL device according to claim 2, wherein a drying gas is supplied as the heating gas.
搬送室と、
前記搬送室内部に配置された搬送ロボットとを有し、
前記搬送室は前記作業室に気密に接続された請求項1記載の有機EL装置の製造装置。
A transfer chamber;
A transfer robot disposed in the transfer chamber;
The apparatus for manufacturing an organic EL device according to claim 1, wherein the transfer chamber is hermetically connected to the work chamber.
作業室と、
前記作業室内に配置された基板に封止材料を配置する封止材料供給装置とを有し、
前記作業室の内部空間を外部雰囲気から遮断可能に構成された有機EL装置の製造装置であって、
前記作業室を外部雰囲気に接続するメンテナンス終了後、基板を前記作業室に搬入する前に前記作業室を加熱する加熱装置を有する有機EL装置の製造装置。
A working room,
A sealing material supply device that disposes a sealing material on a substrate disposed in the working chamber;
An apparatus for manufacturing an organic EL device configured to be able to block the internal space of the working chamber from an external atmosphere,
An apparatus for manufacturing an organic EL device, comprising: a heating device that heats the work chamber after the completion of maintenance for connecting the work chamber to an external atmosphere and before the substrate is carried into the work chamber.
前記加熱装置は、前記作業室の壁に取り付けられた作業室加熱手段と、
前記作業室内に加熱ガスを供給する加熱ガス供給装置のいずれか一方又は両方を有する請求項5記載の有機EL装置の製造装置。
The heating device includes a working chamber heating means attached to the wall of the working chamber,
The apparatus for manufacturing an organic EL device according to claim 5, comprising one or both of heating gas supply devices for supplying a heating gas into the work chamber.
前記加熱ガス供給装置は、前記供給室に接続されたガス供給系を有し、
前記加熱ガスとして乾燥ガスを供給する請求項6記載の有機EL装置の製造装置。
The heated gas supply device has a gas supply system connected to the supply chamber,
The organic EL device manufacturing apparatus according to claim 6, wherein a drying gas is supplied as the heating gas.
搬送室と、
前記搬送室内部に配置された搬送ロボットとを有し、
前記搬送室は前記作業室に気密に接続された請求項5記載の有機EL装置の製造装置。
A transfer chamber;
A transfer robot disposed in the transfer chamber;
The organic EL device manufacturing apparatus according to claim 5, wherein the transfer chamber is airtightly connected to the working chamber.
作業室と、貼り合わせ装置とを有し、
前記貼り合わせ装置は、第一の基板を保持する第一の保持手段と、
第二の基板を保持する第二の保持手段と、
前記第一、第二の保持手段を相対的に移動させ、前記第一、第二の基板を貼り合わせる移動手段とを有し、
前記作業室の内部空間を外部雰囲気から遮断可能に構成された有機EL装置の製造装置であって、
前記作業室を外部雰囲気に接続するメンテナンス終了後、基板を前記作業室に搬入する前に前記作業室を加熱する加熱装置を有する有機EL装置の製造装置。
A working room and a bonding device;
The laminating apparatus includes first holding means for holding a first substrate;
A second holding means for holding the second substrate;
Moving the first and second holding means relative to each other, and moving means for bonding the first and second substrates;
An apparatus for manufacturing an organic EL device configured to be able to block the internal space of the working chamber from an external atmosphere,
An apparatus for manufacturing an organic EL device, comprising: a heating device that heats the work chamber after the completion of maintenance for connecting the work chamber to an external atmosphere and before the substrate is carried into the work chamber.
前記第一、第二の基板の相対的な位置情報を検出する位置合わせ手段を有し、
前記移動手段は前記位置合わせ手段が検出した位置情報に基づき、前記第一、第二の保持手段を水平面内で相対的に移動させる請求項9記載の有機EL装置の製造装置。
Alignment means for detecting relative positional information of the first and second substrates;
The organic EL device manufacturing apparatus according to claim 9, wherein the moving unit relatively moves the first and second holding units in a horizontal plane based on position information detected by the positioning unit.
前記加熱装置は、前記作業室の壁に取り付けられた作業室加熱手段と、
前記作業室内に加熱ガスを供給する加熱ガス供給装置のいずれか一方又は両方を有する請求項9記載の有機EL装置の製造装置。
The heating device includes a working chamber heating means attached to the wall of the working chamber,
The apparatus for manufacturing an organic EL device according to claim 9, comprising one or both of heating gas supply devices for supplying a heating gas into the work chamber.
前記加熱ガス供給装置は、前記供給室に接続されたガス供給系を有し、
前記加熱ガスとして乾燥ガスを供給する請求項11記載の有機EL装置の製造装置。
The heated gas supply device has a gas supply system connected to the supply chamber,
The apparatus for manufacturing an organic EL device according to claim 11, wherein a drying gas is supplied as the heating gas.
搬送室と、
前記搬送室内部に配置された搬送ロボットとを有し、
前記搬送室は前記作業室に気密に接続された請求項9記載の有機EL装置の製造装置。
A transfer chamber;
A transfer robot disposed in the transfer chamber;
The apparatus for manufacturing an organic EL device according to claim 9, wherein the transfer chamber is hermetically connected to the work chamber.
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