JPH1145778A - Organic electroluminescent element and its manufacture - Google Patents
Organic electroluminescent element and its manufactureInfo
- Publication number
- JPH1145778A JPH1145778A JP9201404A JP20140497A JPH1145778A JP H1145778 A JPH1145778 A JP H1145778A JP 9201404 A JP9201404 A JP 9201404A JP 20140497 A JP20140497 A JP 20140497A JP H1145778 A JPH1145778 A JP H1145778A
- Authority
- JP
- Japan
- Prior art keywords
- sealing
- glass
- material layer
- sealing material
- organic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000003566 sealing material Substances 0.000 claims abstract description 42
- 239000011521 glass Substances 0.000 claims abstract description 26
- 239000005394 sealing glass Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 238000005401 electroluminescence Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000005357 flat glass Substances 0.000 claims description 2
- 238000004020 luminiscence type Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002274 desiccant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229920006332 epoxy adhesive Polymers 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 206010027146 Melanoderma Diseases 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種情報機器に使
用されるディスプレーや表示素子に用いられる有機エレ
クトロルミネッセンス素子（以下「ＥＬ素子」と略記す
る）に関し、詳しくは、長期にわたって安定した発光特
性を維持するとともに、製造工程上安価に作製すること
が可能な有機ＥＬ素子およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electroluminescence device (hereinafter abbreviated as "EL device") used for a display or a display device used for various information devices, and more particularly, to a light emission characteristic which is stable for a long time. The present invention relates to an organic EL device which can be manufactured at a low cost in a manufacturing process while maintaining the same, and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】図４に従来の有機ＥＬ素子の基本構造を
示す。有機ＥＬ素子はガラス基板１上に透明電極２と有
機発光層３と電極４とが順次形成され、封止ケース５の
内面上部に乾燥剤層１１が配置された後、この封止ケー
ス５が封止材層６によりガラス基板１と封止接合され、
外部回路７により電圧を印加することにより使用され
る。2. Description of the Related Art FIG. 4 shows a basic structure of a conventional organic EL device. In the organic EL device, a transparent electrode 2, an organic light emitting layer 3, and an electrode 4 are sequentially formed on a glass substrate 1, and a desiccant layer 11 is disposed on the inner surface of a sealing case 5. Sealingly bonded to the glass substrate 1 by the sealing material layer 6,
It is used by applying a voltage by the external circuit 7.
【０００３】有機ＥＬ素子は、ガラス基板１上に形成さ
れた有機発光層３に一方の電極から電子が注入されると
ともに、有機発光層を対持したもう一方の電極より正孔
が注入されることにより、有機発光層内で電子と正孔と
が結合して発光する。かかる有機ＥＬ素子は、視認性と
耐衝撃性に優れていて発光色が多様であることから、各
種情報機器に利用されるディスプレイや表示素子に利用
されている。In an organic EL device, electrons are injected from one electrode into an organic light emitting layer 3 formed on a glass substrate 1, and holes are injected from the other electrode holding the organic light emitting layer. Thereby, electrons and holes are combined in the organic light emitting layer to emit light. Such organic EL elements are excellent in visibility and impact resistance and have various emission colors, and are therefore used for displays and display elements used in various information devices.
【０００４】一方、有機ＥＬ素子は、長期間駆動すると
発光輝度等の発光特性が初期特性に比べて低下する欠点
がある。この発光特性が低下する原因としては、有機発
光層を形成するガラス基板と封止ケースとを封止する際
の環境雰囲気中に含まれる水分と、部品表面に吸着して
いる水分と、封止材層欠陥部を透過してくる水分とが、
電極と有機発光層の間に侵入して有機発光層と電極間に
剥離を生ぜしめ、電圧を印加しても発光しないダークス
ポットと呼ばれる黒点を発生させることが知られてい
る。On the other hand, the organic EL element has a disadvantage that the light emission characteristics such as light emission luminance are deteriorated as compared with the initial characteristics when driven for a long time. The causes of the decrease in the light emission characteristics include moisture contained in the environmental atmosphere when the glass substrate forming the organic light emitting layer and the sealing case are sealed, moisture adsorbed on the component surface, and sealing. Moisture that penetrates the material layer defect is
It is known that a black spot called a dark spot, which does not emit light even when a voltage is applied, occurs by invading between the electrode and the organic light emitting layer to cause separation between the organic light emitting layer and the electrode.
【０００５】そこで、このダークスポットの発生を防止
するため、封止ケース内の内面上部に図４に示すように
乾燥剤層を設け、乾燥剤として五酸化二リン（Ｐ
２Ｏ５）を使用する方法が知られている（特開平３−２
６１０９１号公報）。また、ガラス基板と封止ケース内
部の空間に、吸着剤を含有した不活性液体からなる封止
層を設ける方法も知られている（特開平９−３５８６８
号公報）。Therefore, in order to prevent the generation of the dark spot, a desiccant layer is provided on the inner surface of the inside of the sealing case as shown in FIG. 4, and diphosphorus pentoxide (P) is used as a desiccant.
2 O 5 ) is known (Japanese Unexamined Patent Publication (Kokai) No. 3-2).
No. 61091). A method is also known in which a sealing layer made of an inert liquid containing an adsorbent is provided in the space between the glass substrate and the sealing case (Japanese Patent Laid-Open No. 9-35868).
No.).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記公
報に開示されているいずれの方法も製造工程が複雑にな
り、製造コストが高くなるという問題がある。また、封
止材層には、従来、高温度硬化型接着剤であると温度上
昇により封止空間の体積膨張を招き封止材層に外部との
導通気泡を生じるため室温硬化型接着剤である２液混合
型エポキシ系接着剤が使用されているが、２液混合型で
あるが故に計量および混合工程が必要になるとともに混
合時に混入された気泡を脱泡する必要もある。さらに、
硬化時間についても室温で１６時間程度必要となり、封
止材として量産工程には不適当であるという問題があ
る。However, any of the methods disclosed in the above publications has a problem that the manufacturing steps are complicated and the manufacturing cost is high. Conventionally, if the sealing material layer is a high-temperature curing adhesive, the temperature rise causes volume expansion of the sealing space, and the sealing material layer generates conductive bubbles with the outside. Although a certain two-component type epoxy adhesive is used, the two-component type adhesive requires a weighing and mixing step, and also needs to remove air bubbles mixed during mixing. further,
A curing time of about 16 hours is required at room temperature, which is not suitable for a mass production process as a sealing material.
【０００７】本発明は、上述の問題点に鑑みてなされた
ものであり、長期にわたって安定した発光特性を維持す
るとともに、製造工程上安価に作製することが可能な有
機ＥＬ素子およびその製造方法を提供することを目的と
する。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an organic EL device and a method of manufacturing the same which can maintain stable light emitting characteristics for a long period of time and can be manufactured at low cost in a manufacturing process. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明の有機ＥＬ素子は、有機化合物を含む有機
発光層が互いに対向する電極間に配置されてなる積層体
がガラス基板上に形成され、該積層体の上方に空間をあ
けて封止ガラスが配置された有機ＥＬ素子であって、前
記封止ガラス外周近傍に封止材層が配設され、該封止材
層を介して前記基板ガラスと前記封止ガラスとが封止接
着された有機ＥＬ素子において、前記封止材層に紫外線
硬化型接着剤が使用されていることを特徴とするもので
ある。In order to solve the above-mentioned problems, an organic EL device according to the present invention comprises a laminate comprising an organic light-emitting layer containing an organic compound disposed between electrodes facing each other on a glass substrate. An organic EL element in which a sealing glass is disposed with a space above the laminate, wherein a sealing material layer is disposed near the periphery of the sealing glass, and the sealing material layer is In the organic EL element in which the substrate glass and the sealing glass are sealed and bonded with each other, an ultraviolet curing adhesive is used for the sealing material layer.
【０００９】前記封止ガラスは、製造の容易さの面から
平板ガラスであることが好ましく、また、前記封止材層
にギャップ材が添加、混合されてなるか、あるいはスペ
ーサー材が配置されてなることが効果向上の面から好ま
しい。The sealing glass is preferably a flat glass from the viewpoint of easiness of production, and a gap material is added to and mixed with the sealing material layer, or a spacer material is provided. Is preferred from the viewpoint of improving the effect.
【００１０】また、本発明は、前記有機ＥＬ素子の製造
方法において、水分濃度と酸素濃度とを管理した環境雰
囲気下で前記封止材層による封止接合を行うことを特徴
とするものである。Further, the present invention is characterized in that, in the method of manufacturing an organic EL device, the sealing and joining by the sealing material layer is performed in an environment atmosphere in which the water concentration and the oxygen concentration are controlled. .
【００１１】好ましくは、水分濃度と酸素濃度とを夫々
５ｐｐｍ以下に管理することで、ダークスポットの発生
防止効果を高めることができる。Preferably, by controlling the water concentration and the oxygen concentration to 5 ppm or less, respectively, the effect of preventing the occurrence of dark spots can be enhanced.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態につい
て図面を参照して説明する。図１は本発明の好適実施形
態例を示すもので、ガラス基板１の上に成膜装置により
透明電極２と有機発光層３と電極４とを形成し、平板か
らなる封止ガラス５の外周部に封止材層６をディスペン
サー（図示せず）により塗布し、該封止材層６を介して
ガラス基板１と封止ガラス５を封止接着し、両電極を外
部回路７に接続することにより本発明の有機ＥＬ素子が
完成する。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a preferred embodiment of the present invention, in which a transparent electrode 2, an organic light emitting layer 3, and an electrode 4 are formed on a glass substrate 1 by a film forming apparatus, and an outer periphery of a sealing glass 5 formed of a flat plate. A sealing material layer 6 is applied to the portion by a dispenser (not shown), and the glass substrate 1 and the sealing glass 5 are sealed and bonded via the sealing material layer 6, and both electrodes are connected to the external circuit 7. Thereby, the organic EL device of the present invention is completed.
【００１３】図２に、図１に示す本発明の好適実施形態
例の封止部Ａを拡大して示す。図２に示す封止材層６
は、紫外線硬化型接着剤（商品名：３０Ｙ−２９９、ス
リーボンド社製）による封止材８にギャップ材９（商品
名：マイクロ・ロッド ＰＦ−１０、日本電気硝子社
製）を０．５重量％で添加混合することにより形成さ
れ、このようにして形成された封止材層６はガラス基板
１と封止ガラス５の接触を防止する間隔片としての働き
をしている。FIG. 2 is an enlarged view of the sealing portion A of the preferred embodiment of the present invention shown in FIG. Sealing material layer 6 shown in FIG.
Is 0.5 weight of a gap material 9 (trade name: Micro Rod PF-10, manufactured by Nippon Electric Glass Co., Ltd.) in a sealing material 8 using an ultraviolet curing adhesive (trade name: 30Y-299, manufactured by Three Bond Co., Ltd.) %, And the sealing material layer 6 thus formed functions as a spacing piece for preventing contact between the glass substrate 1 and the sealing glass 5.
【００１４】ここで、紫外線硬化型接着剤は市場で入手
し得る既知のものを使用することができ、特に制限され
るべきものではない。また、ギャップ材９の材質は、好
ましくは粒径５〜２００μｍ程度のガラス、プラスチッ
ク等であり、より好ましくは上記商品名マイクロ・ロッ
ド ＰＦ−１０（日本電気硝子社製）のものを使用し、
封止材層中に０．２〜３重量％の割合で添加、混合する
ことが好ましい。封止材層６をこのような構成とするこ
とにより、従来において行われていた封止ケース等の加
工が不要となる。Here, as the UV-curable adhesive, a commercially available UV-curable adhesive can be used, and there is no particular limitation. The material of the gap material 9 is preferably glass, plastic, or the like having a particle size of about 5 to 200 μm, and more preferably, the one having the above-mentioned trade name Micro Rod PF-10 (manufactured by Nippon Electric Glass Co., Ltd.)
It is preferable to add and mix at a ratio of 0.2 to 3% by weight in the sealing material layer. With such a configuration of the sealing material layer 6, the processing of the sealing case and the like performed in the related art becomes unnecessary.
【００１５】前記封止材層６の硬化は、紫外線照射装置
（図示せず）により１５０ｍＷ／ｃｍ２の照度で２０秒
の時間で完了し、従来の２液混合型エポキシ系接着剤に
比し硬化時間の大幅な短縮がはかられるため、量産化が
可能となる。The curing of the sealing material layer 6 is completed by an ultraviolet irradiation device (not shown) at an illuminance of 150 mW / cm 2 in a time of 20 seconds, which is smaller than that of a conventional two-component epoxy adhesive. Since the curing time can be greatly reduced, mass production becomes possible.
【００１６】ガラス基板１と封止ガラス５を封止接着す
る場合の環境条件では、グローブボックス（図示せず）
内の水分濃度と酸素濃度を夫々５ｐｐｍ以下にコントロ
ールして封止接着することにより、ダークスポットの発
生をより十分に防止することが可能となる。Under environmental conditions when the glass substrate 1 and the sealing glass 5 are sealed and bonded, a glove box (not shown) is used.
By controlling the water concentration and the oxygen concentration in each of them to 5 ppm or less, respectively, and sealing and bonding, it is possible to more sufficiently prevent the generation of dark spots.
【００１７】完成した有機ＥＬ素子に対する高温高湿試
験として８０℃９５％ＲＨの雰囲気条件で２０００時間
の連続試験を実施したが、発光輝度等の発光特性の低下
は確認されず、ダークスポット等の発生もなく、良好な
有機ＥＬ素子の封止構造と封止方法を得ることができ
た。As a high-temperature and high-humidity test on the completed organic EL device, a continuous test was conducted for 2000 hours under an atmosphere condition of 80 ° C. and 95% RH. There was no occurrence, and a good sealing structure and sealing method for an organic EL element could be obtained.
【００１８】図３は本発明の他の好適実施形態例におけ
る封止部Ａを拡大して示す。この好適実施形態の有機Ｅ
Ｌ素子における封止材層６以外の基本的構造は前記と同
様に図１に示すものと同じである。即ち、ガラス基板１
の上に成膜装置により透明電極２と有機発光層３と電極
４とを形成し、平板からなる封止ガラス５の外周部に封
止材層６を設け、該封止材層６を介してガラス基板１と
封止ガラス５を封止接着し、両電極を外部回路７に接続
することにより本発明の有機ＥＬ素子が完成する。FIG. 3 is an enlarged view showing a sealing portion A according to another preferred embodiment of the present invention. Organic E of this preferred embodiment
The basic structure of the L element other than the sealing material layer 6 is the same as that shown in FIG. That is, the glass substrate 1
A transparent electrode 2, an organic light emitting layer 3 and an electrode 4 are formed thereon by a film forming apparatus, and a sealing material layer 6 is provided on an outer peripheral portion of a sealing glass 5 made of a flat plate. Then, the glass substrate 1 and the sealing glass 5 are sealed and bonded, and both electrodes are connected to the external circuit 7, whereby the organic EL device of the present invention is completed.
【００１９】図３に示す封止材層６は、前記好適実施形
態例の場合と同様に商品名３０Ｙ−２９９（スリーボン
ド社製）の紫外線硬化型接着剤の封止材８によりスペー
サー材１０を配置することにより形成され、このように
して形成された封止材層６はガラス基板１と封止ガラス
５の接触を防止する間隔片としての働きをしている。ス
ペーサー材１０の具体的な配置は、まず封止ガラス５の
外周近傍に前記紫外線硬化型接着剤による封止材８をデ
ィスペーサー（図示せず）により塗布した後に、ポリエ
ステルフィルムを打抜き加工したスペーサー材１０を貼
り合わせ、その後にスペーサー材１０の表面に前記紫外
線硬化型接着剤による封止材８を同様にディスペンサー
（図示せず）により塗布し、しかる後ガラス基板１と封
止接着することにより行われる。The sealing material layer 6 shown in FIG. 3 is made of a spacer material 10 by an ultraviolet curing adhesive sealing material 8 having a trade name of 30Y-299 (manufactured by Three Bond Co., Ltd.) as in the case of the preferred embodiment. The sealing material layer 6 formed by disposing the sealing material layer 6 functions as a spacing piece for preventing the contact between the glass substrate 1 and the sealing glass 5. A specific arrangement of the spacer material 10 is as follows. First, a sealing material 8 made of the ultraviolet-curable adhesive is applied to the vicinity of the outer periphery of the sealing glass 5 by a despacer (not shown), and then a spacer formed by punching a polyester film. The sealing material 8 is similarly applied to the surface of the spacer material 10 by using a dispenser (not shown) on the surface of the spacer material 10, and then sealed and bonded to the glass substrate 1. Done.
【００２０】ここで、スペーサー材１０の材質は、水分
の透過を完全に防ぐことができかつ紫外線硬化型接着剤
と良好な接着性を有するものであれば特に制限されるべ
きものではないが、好ましくはガラス、プラスチック等
であり、より好ましくは上述のポリエステルフィルムを
挙げることができる。Here, the material of the spacer material 10 is not particularly limited as long as it can completely prevent the permeation of moisture and has good adhesiveness with the ultraviolet curable adhesive. Glass and plastic are preferred, and the above-mentioned polyester film is more preferred.
【００２１】前記封止材層６の硬化は、紫外線照射装置
（図示せず）により１５０ｍＷ／ｃｍ２の照度で２０秒
の時間で完了し、前記好適実施形態例の場合と同様に硬
化時間の大幅な短縮がはかられる。The curing of the sealing material layer 6 is completed by an ultraviolet irradiation device (not shown) at an illuminance of 150 mW / cm 2 in a time of 20 seconds, and the curing time is the same as in the case of the preferred embodiment. Significant shortening can be achieved.
【００２２】ガラス基板１と封止ガラス５を封止接着す
る場合の環境条件では、グローブボックス（図示せず）
内の水分濃度と酸素濃度を夫々５ｐｐｍ以下にコントロ
ールして封止することにより、ダークスポットの発生を
防止することができる。Under environmental conditions when the glass substrate 1 and the sealing glass 5 are sealed and bonded, a glove box (not shown) is used.
The generation of dark spots can be prevented by controlling the water concentration and the oxygen concentration in each of them at 5 ppm or less, respectively, for sealing.
【００２３】完成した有機ＥＬ素子に対する高温高湿試
験として８０℃９５％ＲＨの雰囲気条件で２０００時間
の連続試験を実施したが、発光輝度等の発光特性の低下
は確認されず、ダークスポット等の発生もなく、良好な
有機ＥＬ素子の封止構造と封止方法を得ることができ
た。As a high-temperature and high-humidity test for the completed organic EL device, a continuous test was performed for 2000 hours under an atmosphere condition of 80 ° C. and 95% RH. There was no occurrence, and a good sealing structure and sealing method for an organic EL element could be obtained.
【００２４】[0024]
【発明の効果】以上に述べたとおり、本発明において
は、有機発光層が電極間に配置されてなる積層体をガラ
ス基板上に形成し、封止ガラス外周近傍に配設された封
止材層を介して基板ガラスと封止ガラスとを封止接着す
るにあたり、封止材層に紫外線硬化型接着剤を使用した
ことにより、ダークスポットの発生がなく長期にわたっ
て安定した発光特性を維持することのできる有機ＥＬ素
子が得られ、また封止材層の短時間硬化がはかれ、製造
工程上も安価に作製することが可能である。特に、封止
ガラスとして平板の封止ガラスを用い、封止材層にギャ
ップ材を添加混合するか、またはスペーサー材を配置す
ることにより、より製造工程の面で有利となる。さら
に、ガラス基板と封止ガラスを封止する環境条件下にお
いて水分濃度と酸素濃度を管理して封止接着を行うこと
により、ダークスポットの発生をより効果的に防止する
ことができる。As described above, according to the present invention, a laminate in which an organic light emitting layer is disposed between electrodes is formed on a glass substrate, and a sealing material disposed near the periphery of the sealing glass. When sealing and bonding the substrate glass and the sealing glass through the layer, by using an ultraviolet-curing adhesive for the sealing material layer, there is no generation of dark spots, and stable emission characteristics are maintained for a long time. Thus, an organic EL element that can be manufactured can be obtained, and the sealing material layer can be cured in a short time, so that it can be manufactured at a low cost in the manufacturing process. In particular, using a flat sealing glass as the sealing glass and adding and mixing a gap material to the sealing material layer or disposing a spacer material is more advantageous in terms of a manufacturing process. Furthermore, by controlling the moisture concentration and the oxygen concentration under the environmental conditions in which the glass substrate and the sealing glass are sealed and performing the sealing and bonding, the generation of dark spots can be more effectively prevented.
【図１】本発明の好適実施形態例を示す断面図である。FIG. 1 is a sectional view showing a preferred embodiment of the present invention.
【図２】図１に示す本発明の好適実施形態例の封止部Ａ
を示す拡大図である。FIG. 2 shows a sealing portion A of a preferred embodiment of the present invention shown in FIG.
FIG.
【図３】本発明の他の好適実施形態例における封止部Ａ
を拡大図である。FIG. 3 shows a sealing portion A according to another preferred embodiment of the present invention.
FIG.
【図４】従来の有機ＥＬ素子の基本構造を示す断面図で
ある。FIG. 4 is a cross-sectional view showing a basic structure of a conventional organic EL element.
１ ガラス基板 ２ 透明電極 ３ 有機発光層 ４ 電極 ５ 封止ガラス ６ 封止材層 ７ 外部回路 ８ 封止材 ９ ギャップ材 １０ スペーサー材 １１ 乾燥剤層 DESCRIPTION OF SYMBOLS 1 Glass substrate 2 Transparent electrode 3 Organic light emitting layer 4 Electrode 5 Sealing glass 6 Sealing material layer 7 External circuit 8 Sealing material 9 Gap material 10 Spacer material 11 Desiccant layer
Claims (6)
向する電極間に配置されてなる積層体がガラス基板上に
形成され、該積層体の上方に空間をあけて封止ガラスが
配置された有機エレクトロルミネッセンス素子であっ
て、前記封止ガラス外周近傍に封止材層が配設され、該
封止材層を介して前記基板ガラスと前記封止ガラスとが
封止接着された有機エレクトロルミネッセンス素子にお
いて、 前記封止材層に紫外線硬化型接着剤が使用されているこ
とを特徴とする有機エレクトロルミネッセンス素子。1. A laminate having an organic light emitting layer containing an organic compound disposed between electrodes facing each other is formed on a glass substrate, and a sealing glass is disposed above the laminate with a space therebetween. An organic electroluminescence element, wherein a sealing material layer is provided in the vicinity of an outer periphery of the sealing glass, and the substrate glass and the sealing glass are sealed and bonded via the sealing material layer. An organic electroluminescence device, wherein an ultraviolet-curable adhesive is used for the sealing material layer.
項１記載の有機エレクトロルミネッセンス素子。2. The organic electroluminescence device according to claim 1, wherein the sealing glass is a flat glass.
されてなる請求項１または２記載の有機エレクトロルミ
ネッセンス素子。3. The organic electroluminescence device according to claim 1, wherein a gap material is added to and mixed with the sealing material layer.
てなる請求項１または２記載の有機エレクトロルミネッ
センス素子。4. The organic electroluminescence device according to claim 1, wherein a spacer material is disposed on the sealing material layer.
センス素子の製造方法において、水分濃度と酸素濃度と
を管理した環境雰囲気下で前記封止材層による封止接合
を行うことを特徴とする有機エレクトロルミネッセンス
素子の製造方法。5. The method for manufacturing an organic electroluminescence device according to claim 1, wherein the sealing by the sealing material layer is performed in an environment atmosphere in which a moisture concentration and an oxygen concentration are controlled. A method for manufacturing a luminescence element.
下に管理する請求項５記載の製造方法。6. The method according to claim 5, wherein the water concentration and the oxygen concentration are each controlled to 5 ppm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20140497A JP3293527B2 (en) | 1997-07-28 | 1997-07-28 | Organic electroluminescence device and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20140497A JP3293527B2 (en) | 1997-07-28 | 1997-07-28 | Organic electroluminescence device and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1145778A true JPH1145778A (en) | 1999-02-16 |
| JP3293527B2 JP3293527B2 (en) | 2002-06-17 |
Family
ID=16440536
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20140497A Expired - Lifetime JP3293527B2 (en) | 1997-07-28 | 1997-07-28 | Organic electroluminescence device and method of manufacturing the same |
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| Country | Link |
|---|---|
| JP (1) | JP3293527B2 (en) |
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|---|---|---|---|---|
| JP2001093664A (en) * | 1999-09-22 | 2001-04-06 | Fuji Electric Co Ltd | Manufacture of organic el element |
| JP2003297557A (en) * | 2002-04-03 | 2003-10-17 | Seiko Epson Corp | Electroluminescent device and its manufacturing method, electronic equipment |
| US7182664B2 (en) | 2003-03-12 | 2007-02-27 | Fuji Electric Holdings Co., Ltd. | Method and an apparatus for manufacturing an organic EL display device |
| JP2009004742A (en) * | 2007-05-18 | 2009-01-08 | Semiconductor Energy Lab Co Ltd | Semiconductor device and manufacturing method thereof |
| WO2009093467A1 (en) | 2008-01-25 | 2009-07-30 | Mitsui Chemicals, Inc. | Polymerizable epoxy composition, and sealing material composition comprising the same |
| US7820592B2 (en) | 2003-02-17 | 2010-10-26 | Saes Getters S.P.A. | Composition and devices for gas sorption and process for their manufacturing |
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| JP2009043912A (en) * | 2007-08-08 | 2009-02-26 | Kobe Steel Ltd | Superconducting coil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005224001A (en) * | 2004-02-04 | 2005-08-18 | Univ Of Fukui | Superconducting synchronous machine |
| JP2009043912A (en) * | 2007-08-08 | 2009-02-26 | Kobe Steel Ltd | Superconducting coil |
| JP2012088092A (en) * | 2010-10-16 | 2012-05-10 | Japanese Super-Conductivity Organization Co Ltd | Vibration generating device |
| JP2013155609A (en) * | 2012-01-26 | 2013-08-15 | Mitsubishi Heavy Ind Ltd | Wave power generation device |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001093664A (en) * | 1999-09-22 | 2001-04-06 | Fuji Electric Co Ltd | Manufacture of organic el element |
| JP2003297557A (en) * | 2002-04-03 | 2003-10-17 | Seiko Epson Corp | Electroluminescent device and its manufacturing method, electronic equipment |
| US7820592B2 (en) | 2003-02-17 | 2010-10-26 | Saes Getters S.P.A. | Composition and devices for gas sorption and process for their manufacturing |
| US7182664B2 (en) | 2003-03-12 | 2007-02-27 | Fuji Electric Holdings Co., Ltd. | Method and an apparatus for manufacturing an organic EL display device |
| JP2009004742A (en) * | 2007-05-18 | 2009-01-08 | Semiconductor Energy Lab Co Ltd | Semiconductor device and manufacturing method thereof |
| US8716850B2 (en) | 2007-05-18 | 2014-05-06 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
| US9490309B2 (en) | 2007-05-18 | 2016-11-08 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
| US9984946B2 (en) | 2007-05-18 | 2018-05-29 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and method for manufacturing the same |
| WO2009093467A1 (en) | 2008-01-25 | 2009-07-30 | Mitsui Chemicals, Inc. | Polymerizable epoxy composition, and sealing material composition comprising the same |
| US8889803B2 (en) | 2008-01-25 | 2014-11-18 | Mitsui Chemicals, Inc. | Polymerizable epoxy composition, and sealing material composition comprising the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3293527B2 (en) | 2002-06-17 |
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