JP2002313558A - Organic electroluminescence display element and its manufacturing method - Google Patents
Organic electroluminescence display element and its manufacturing methodInfo
- Publication number
- JP2002313558A JP2002313558A JP2001115053A JP2001115053A JP2002313558A JP 2002313558 A JP2002313558 A JP 2002313558A JP 2001115053 A JP2001115053 A JP 2001115053A JP 2001115053 A JP2001115053 A JP 2001115053A JP 2002313558 A JP2002313558 A JP 2002313558A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- film
- organic
- moisture
- plastic substrate
- 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.)
- Pending
Links
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- ZOKIJILZFXPFTO-UHFFFAOYSA-N 4-methyl-n-[4-[1-[4-(4-methyl-n-(4-methylphenyl)anilino)phenyl]cyclohexyl]phenyl]-n-(4-methylphenyl)aniline Chemical compound C1=CC(C)=CC=C1N(C=1C=CC(=CC=1)C1(CCCCC1)C=1C=CC(=CC=1)N(C=1C=CC(C)=CC=1)C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 ZOKIJILZFXPFTO-UHFFFAOYSA-N 0.000 description 1
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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- IMALFSHRMABADU-UHFFFAOYSA-K aluminum 4-(4-cyanophenyl)phenolate 2-methyl-5-(trifluoromethyl)quinolin-8-olate Chemical compound [Al+3].C(#N)C1=CC=C(C=C1)C1=CC=C(C=C1)[O-].CC1=NC2=C(C=CC(=C2C=C1)C(F)(F)F)[O-].CC1=NC2=C(C=CC(=C2C=C1)C(F)(F)F)[O-] IMALFSHRMABADU-UHFFFAOYSA-K 0.000 description 1
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- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 1
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
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- RQGPLDBZHMVWCH-UHFFFAOYSA-N pyrrolo[3,2-b]pyrrole Chemical class C1=NC2=CC=NC2=C1 RQGPLDBZHMVWCH-UHFFFAOYSA-N 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- NQHONLWXAMXQRF-UHFFFAOYSA-K quinolin-8-olate;scandium(3+) Chemical compound [Sc+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 NQHONLWXAMXQRF-UHFFFAOYSA-K 0.000 description 1
- YYMBJDOZVAITBP-UHFFFAOYSA-N rubrene Chemical compound C1=CC=CC=C1C(C1=C(C=2C=CC=CC=2)C2=CC=CC=C2C(C=2C=CC=CC=2)=C11)=C(C=CC=C2)C2=C1C1=CC=CC=C1 YYMBJDOZVAITBP-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
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- 229930192474 thiophene Natural products 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- TVIVIEFSHFOWTE-UHFFFAOYSA-K tri(quinolin-8-yloxy)alumane Chemical compound [Al+3].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 TVIVIEFSHFOWTE-UHFFFAOYSA-K 0.000 description 1
- SXXNJJQVBPWGTP-UHFFFAOYSA-K tris[(4-methylquinolin-8-yl)oxy]alumane Chemical compound [Al+3].C1=CC=C2C(C)=CC=NC2=C1[O-].C1=CC=C2C(C)=CC=NC2=C1[O-].C1=CC=C2C(C)=CC=NC2=C1[O-] SXXNJJQVBPWGTP-UHFFFAOYSA-K 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- HTPBWAPZAJWXKY-UHFFFAOYSA-L zinc;quinolin-8-olate Chemical compound [Zn+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 HTPBWAPZAJWXKY-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
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- Electroluminescent Light Sources (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、表示装置としての
発光型ディスプレイや、面発光光源として幅広い用途が
期待されている有機エレクトロルミネッセンス表示素子
（以下、有機ＥＬ表示素子と言う。）及びその製造方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electroluminescent display element (hereinafter referred to as an organic EL display element) which is expected to be used for a wide range of applications as a light emitting display as a display device and a surface emitting light source, and its manufacture. About the method.
【０００２】[0002]
【従来の技術】有機ＥＬ表示素子は、自己発光型である
ため、これを用いたディスプレイは高輝度、高視野角を
示すという特徴があり、かつ低電圧で駆動し得るという
特徴を有している。2. Description of the Related Art Since an organic EL display element is of a self-luminous type, a display using the same has a feature that it has a high luminance and a wide viewing angle and that it can be driven at a low voltage. I have.
【０００３】かかる有機ＥＬ表示素子は、互いに対向す
る第一電極層と第二電極層の間に有機物を挟持する構造
であり、有機物はさらに発光層、正孔注入層／発光層、
発光層／電子注入層、正孔注入層／発光層／電子注入層
のような積層体か、正孔注入材料と電子注入材料のうち
少なくとも一つと発光材料を混合した構造になってい
る。Such an organic EL display element has a structure in which an organic substance is sandwiched between a first electrode layer and a second electrode layer facing each other, and the organic substance further includes a light emitting layer, a hole injection layer / light emitting layer,
It has a laminated structure such as a light emitting layer / electron injection layer, a hole injection layer / light emitting layer / electron injection layer, or a structure in which a light emitting material is mixed with at least one of a hole injection material and an electron injection material.
【０００４】有機ＥＬ表示素子の製造方法で、プラスチ
ック基材上に有機ＥＬ層や第二電極層を、蒸着法や印刷
法などにより成膜する方法が提案されている。これによ
り、薄型・軽量な有機ＥＬ表示素子を製造することが可
能となる。As a method of manufacturing an organic EL display element, there has been proposed a method of forming an organic EL layer or a second electrode layer on a plastic substrate by a vapor deposition method, a printing method, or the like. This makes it possible to manufacture a thin and lightweight organic EL display element.
【０００５】しかし、有機ＥＬ表示素子は、大気中の水
分や酸素により劣化する。大気中の水分、酸素等の影響
により、例えば有機ＥＬ層と第二電極層との界面で剥離
が生じたり、構成材料が変質してしまったりする。この
結果、ダークスポットと呼ばれる非発光領域が発生し、
時間の経過と共に拡大するといった現象があったり、所
定の品質の発光が維持できなくなったりする。このた
め、防湿フィルムや透明無機薄膜蒸着フィルム等で封止
する必要がある。However, the organic EL display element is deteriorated by moisture and oxygen in the atmosphere. Due to the influence of moisture, oxygen, and the like in the air, for example, separation occurs at the interface between the organic EL layer and the second electrode layer, or the constituent materials are altered. As a result, a non-light emitting area called a dark spot occurs,
There is a phenomenon that the light emission expands with the passage of time, or light emission of a predetermined quality cannot be maintained. For this reason, it is necessary to seal with a moisture-proof film, a transparent inorganic thin film deposition film, or the like.
【０００６】ＥＬ光取り出し面側の防湿性フィルムは、
防湿性かつ透光性が求められるため、プラスチック基材
に透明無機物を蒸着したり、透明無機薄膜蒸着フィルム
をラミネートしたフィルムが用いられている。しかし、
ＥＬ光取り出し面と反対側の防湿性フィルムは、透光性
である必要がなく、特に防湿性に優れた金属箔からなる
防湿性フィルムを使用することができる。The moisture-proof film on the EL light extraction surface side is
Since moisture-proof and light-transmitting properties are required, a film obtained by depositing a transparent inorganic substance on a plastic substrate or laminating a transparent inorganic thin film-deposited film is used. But,
The moisture-proof film on the side opposite to the EL light extraction surface does not need to be translucent, and a moisture-proof film made of a metal foil having particularly excellent moisture-proof properties can be used.
【０００７】しかしながら、現状の透明無機薄膜蒸着フ
ィルムでは、長期に渡って、有機ＥＬ表示素子の劣化を
抑制することはできない。However, the current transparent inorganic thin film deposited film cannot suppress the deterioration of the organic EL display element for a long period of time.
【０００８】また、ガラス板上に第一電極層、有機ＥＬ
層、第二電極層（積層体）を作製し、その上に防湿性フ
ィルムを接着することにより封止する方法が提案されて
いる。Further, a first electrode layer, an organic EL
A method has been proposed in which a layer and a second electrode layer (laminate) are prepared, and a moisture-proof film is adhered thereon to seal the layer.
【０００９】しかしながら、ガラス板を用いると巻き取
り基材の使用が困難であったり、積層体に防湿性フィル
ムを加圧機やロール等により加圧し、接着する際に、加
圧機やロール等が直接有機ＥＬ層等に接触するため、第
二電極層および有機ＥＬ層に膜欠陥が生じてしまい、発
光時に前述した膜欠陥が非発光部となってしまう。However, when a glass plate is used, it is difficult to use a winding substrate, or when a moisture-proof film is pressed onto a laminate by a pressing machine or a roll, etc., when the film is adhered, the pressing machine or a roll directly contacts the laminate. Since the second electrode layer and the organic EL layer are in contact with the organic EL layer or the like, a film defect occurs in the second electrode layer and the organic EL layer, and the above-described film defect becomes a non-light emitting portion during light emission.
【００１０】他方、プラスチック基材上に第一電極層、
有機ＥＬ層、第二電極層（積層体）を作製し、積層体の
プラスチック基材面をガラス板で封止し、その後、他面
に防湿性フィルムを積層接着する方法の採用を検討する
と、プラスチック基材と防湿性フィルムとの間のシーラ
ント層は、加圧または加熱または熱押圧を２回行われる
ことになる。このため、シーラント層が薄くなり接着不
良が発生する、シーラント層にクラックが入る等の封止
不良が生じる恐れがある。On the other hand, a first electrode layer on a plastic substrate,
Considering the method of preparing an organic EL layer and a second electrode layer (laminate), sealing the plastic substrate surface of the laminate with a glass plate, and then laminating and bonding a moisture-proof film to the other surface, The sealant layer between the plastic substrate and the moisture-proof film will be subjected to pressure, heating or hot pressing twice. For this reason, there is a possibility that the sealant layer becomes thinner, resulting in poor adhesion, cracks in the sealant layer, or other poor sealing.
【００１１】また、ガラス板と防湿性フィルムを別々に
積層体に積層接着するため生産効率が悪い。Further, since the glass plate and the moisture-proof film are separately laminated and adhered to the laminate, the production efficiency is low.
【００１２】[0012]
【発明が解決しようとする課題】本発明は、これらの問
題点を解決するためになされたものであり、大気中の水
分や酸素等の影響を極力除外し、経時劣化が少なく、か
つ有機ＥＬ表示素子が膜欠陥を生じることなく、生産性
を向上させることにより安価な有機ＥＬ表示素子及びそ
の製造方法を提供するものである。SUMMARY OF THE INVENTION The present invention has been made in order to solve these problems. The present invention eliminates the influence of atmospheric moisture, oxygen and the like as much as possible, has little deterioration over time, and has an organic EL. An object of the present invention is to provide an inexpensive organic EL display element and a method of manufacturing the same by improving productivity without causing a film defect in the display element.
【００１３】[0013]
【課題を解決するための手段】本発明は、上記課題を解
決するため、まず請求項１においては、少なくともプラ
スチック基材上に第一電極層と有機エレクトロルミネッ
センス層と第二電極層を積層した積層体のプラスチック
基材面に配置したガラス板と、第二電極層面に配置した
防湿性フィルムにより被覆封止したことを特徴とする有
機エレクトロルミネッセンス表示素子を提供する。請求
項２においては、少なくともプラスチック基材上に第一
電極層と有機エレクトロルミネッセンス層と第二電極層
を積層した積層体のプラスチック基材面に配置したガラ
ス板と、第二電極層面に配置した防湿性フィルムにより
被覆封止した有機エレクトロルミネッセンス表示素子の
製造方法において、ガラス板及び防湿性フィルムによる
被覆封止を同時に行なうことを特徴とする有機エレクト
ロルミネッセンス表示素子の製造方法を提供する。請求
項３においては、前記プラスチック基材と前記ガラス板
をシーラントフィルムにより接着させることを特徴とし
た請求項２記載の有機エレクトロルミネッセンス表示素
子の製造方法を提供する。In order to solve the above-mentioned problems, according to the present invention, first, at least a first electrode layer, an organic electroluminescent layer and a second electrode layer are laminated on a plastic substrate. Provided is an organic electroluminescent display element characterized by being covered and sealed with a glass plate disposed on a plastic substrate surface of a laminate and a moisture-proof film disposed on a second electrode layer surface. In claim 2, a glass plate disposed on a plastic substrate surface of a laminate obtained by laminating a first electrode layer, an organic electroluminescent layer, and a second electrode layer on at least a plastic substrate, and disposed on a second electrode layer surface. A method for manufacturing an organic electroluminescent display element covered and sealed with a moisture-proof film, wherein the method comprises simultaneously performing coating and sealing with a glass plate and a moisture-proof film. According to a third aspect of the present invention, there is provided a method of manufacturing an organic electroluminescent display device according to the second aspect, wherein the plastic substrate and the glass plate are bonded with a sealant film.
【００１４】[0014]
【発明の実施の形態】以下、本発明の有機ＥＬ表示素子
およびその製造方法の一例として、プラスチック基材上
の第一電極層が陽極層、第二電極層が陰極層となる場合
を例にあげ、その製造工程に従って詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, as an example of an organic EL display device and a method of manufacturing the same according to the present invention, a case where a first electrode layer on a plastic substrate is an anode layer and a second electrode layer is a cathode layer will be described. It will be described in detail according to the manufacturing process.
【００１５】まず、プラスチック基材上に、スパッタリ
ング法や真空蒸着法などにより、陽極層を成膜し、フォ
トリソグラフィー法及びウェットエッチング法を用い
て、陽極層をパターンニングする。この時、プラスチッ
ク基材を巻き取りながら陽極層を成膜し、パターンニン
グを行うことができる。First, an anode layer is formed on a plastic substrate by a sputtering method or a vacuum evaporation method, and the anode layer is patterned by a photolithography method and a wet etching method. At this time, it is possible to form an anode layer while winding up the plastic substrate and perform patterning.
【００１６】本発明におけるプラスチック基材として、
ポリエチレンテレフタレート、ポリプロピレン、ポリエ
ーテルサルフォン、ポリカーボネート、シクロオレフィ
ンポリマー、ポリアリレート、ポリアミド、ポリメチル
メタクリレートなどからなる延伸または未延伸のフィル
ム、またはシートを用いることができる。また、これら
のプラスチックフィルムに陽極層を成膜する前に、コロ
ナ処理、プラズマ処理、UVオゾン処理などの表面処理を
施しても良い。As the plastic substrate in the present invention,
A stretched or unstretched film or sheet made of polyethylene terephthalate, polypropylene, polyether sulfone, polycarbonate, cycloolefin polymer, polyarylate, polyamide, polymethyl methacrylate, or the like can be used. Before forming the anode layer on these plastic films, a surface treatment such as a corona treatment, a plasma treatment, or a UV ozone treatment may be performed.
【００１７】本発明における陽極層の材料としては、
ＩＴＯ（インジウムスズ複合酸化物）やインジウム亜鉛
複合酸化物、亜鉛アルミニウム複合酸化物等の透明電極
材料が使用できる。なお、抵抗を下げるために陽極層に
は銅、クロム、アルミニウム、チタン等の金属もしくは
これらの積層物を補助電極として部分的に併設させるこ
とができる。また、陽極層上に短絡防止用の絶縁層を構
成しても良い。The material of the anode layer in the present invention includes:
Transparent electrode materials such as ITO (indium tin composite oxide), indium zinc composite oxide, and zinc aluminum composite oxide can be used. In order to reduce the resistance, a metal such as copper, chromium, aluminum, or titanium or a laminate thereof can be partially provided as an auxiliary electrode in the anode layer. Further, an insulating layer for preventing short circuit may be formed on the anode layer.
【００１８】次に、陽極層の上に有機ＥＬ層を成膜す
る。本発明における有機ＥＬ層は、蛍光物質を含む単層
構造、あるいは多層構造で形成することができる。Next, an organic EL layer is formed on the anode layer. The organic EL layer in the present invention can be formed with a single-layer structure containing a fluorescent substance or a multilayer structure.
【００１９】多層構造で形成する場合の有機ＥＬ層の構
成例は、正孔注入輸送層／電子輸送性発光層または正孔
輸送性発光層／電子輸送層からなる２層構成や正孔注入
輸送層／発光層／電子輸送層からなる３層構成等があ
る。さらにより多層で形成することも可能であり、各層
を陽極層上に順に形成する。Examples of the constitution of the organic EL layer when formed in a multilayer structure include a two-layer constitution of a hole injection / transport layer / electron transport light emitting layer or a hole transport light emitting layer / electron transport layer, and a hole injection / transport layer. There is a three-layer structure composed of a layer / a light emitting layer / an electron transport layer. Further, it is also possible to form a multi-layer, and each layer is formed on the anode layer in order.
【００２０】正孔注入輸送層材料の例としては、銅フタ
ロシアニン、テトラ（ｔ−ブチル）銅フタロシアニン等
の金属フタロシアニン類及び無金属フタロシアニン類、
キナクリドン化合物、１，１−ビス（４−ジ−ｐ−トリ
ルアミノフェニル）シクロヘキサン、Ｎ，Ｎ’−ジフェ
ニル−Ｎ，Ｎ’−ビス（３−メチルフェニル）−１，
１’−ビフェニル−４，４’−ジアミン、Ｎ，Ｎ’−ジ
（１−ナフチル）−Ｎ，Ｎ’−ジフフェニル−１，１’
−ビフェニル−４，４’−ジアミン等の芳香族アミン系
低分子正孔注入輸送層や、その他既存の正孔輸送材料の
中から選ぶことができる。Examples of materials for the hole injecting and transporting layer include metal phthalocyanines such as copper phthalocyanine and tetra (t-butyl) copper phthalocyanine, and metal-free phthalocyanines;
Quinacridone compounds, 1,1-bis (4-di-p-tolylaminophenyl) cyclohexane, N, N′-diphenyl-N, N′-bis (3-methylphenyl) -1,
1'-biphenyl-4,4'-diamine, N, N'-di (1-naphthyl) -N, N'-diphphenyl-1,1 '
It can be selected from an aromatic amine-based low molecular hole injecting / transporting layer such as -biphenyl-4,4'-diamine and other existing hole transporting materials.
【００２１】発光材料の例としては、９，１０−ジアリ
ールアントラセン誘導体、ピレン、コロネン、ペリレ
ン、ルブレン、１，１，４，４−テトラフェニルブタジ
エン、トリス（８−キノリノラート）アルミニウム錯
体、トリス（４−メチル−８キノリノラート）アルミニ
ウム錯体、ビス（８−キノリノラート）亜鉛錯体、トリ
ス（４−メチル−５−トリフルオロメチル−８−キノリ
ノラート）アルミニウム錯体、トリス（４−メチル−５
−シアノ−８−キノリノラート）アルミニウム錯体、ビ
ス（２−メチル−５−トリフルオロメチル−８−キノリ
ノラート）［４−（４−シアノフェニル）フェノラー
ト］アルミニウム錯体、ビス（２−メチル−５−シアノ
−８−キノリノラート）［４−（４−シアノフェニル）
フェノラート］アルミニウム錯体、トリス（８−キノリ
ノラート）スカンジウム錯体、ビス〔８−（パラ−トシ
ル）アミノキノリン〕亜鉛錯体及びカドミウム錯体、
１，２，３，４−テトラフェニルシクロペンタジエン、
ペンタフェニルシクロペンタジエン、ポリ−２，５−ジ
ヘプチルオキシ−パラ−フェニレンビニレン、クマリン
系蛍光体、ペリレン系蛍光体、ピラン系蛍光体、アンス
ロン系蛍光体、ポルフィリン系蛍光体、キナクリドン系
蛍光体、Ｎ，Ｎ’−ジアルキル置換キナクリドン系蛍光
体、ナフタルイミド系蛍光体、Ｎ，Ｎ’−ジアリール置
換ピロロピロール系蛍光体等の低分子材料や、ポリパラ
フェニレンビニレン、ポリ（２−メトキシー５―（２’
エチルエキソキシ）―１、４−パラフェニレンビニレ
ン、ポリ（３−アルキルチオフェン）、ポリ（９，９−
ジアルキシルフルオレン）、ポリ（パラフェニレン）な
どの共役高分子系やポリ（Ｎ−ビニルカルバゾール）、
２，５−ビス（５−ｔ−ブチル−２，５−ベンゾオキサ
ゾイル）チオフェン、ジンク ビス−ベンゾチアゾール
フェノレイトなどの高分子分散系など公知の高分子材
料を使用できる。Examples of the light emitting material include 9,10-diarylanthracene derivatives, pyrene, coronene, perylene, rubrene, 1,1,4,4-tetraphenylbutadiene, tris (8-quinolinolate) aluminum complex, tris (4 -Methyl-8 quinolinolate) aluminum complex, bis (8-quinolinolate) zinc complex, tris (4-methyl-5-trifluoromethyl-8-quinolinolate) aluminum complex, tris (4-methyl-5)
-Cyano-8-quinolinolate) aluminum complex, bis (2-methyl-5-trifluoromethyl-8-quinolinolate) [4- (4-cyanophenyl) phenolate] aluminum complex, bis (2-methyl-5-cyano-) 8-quinolinolate) [4- (4-cyanophenyl)
Phenolate] aluminum complex, tris (8-quinolinolate) scandium complex, bis [8- (para-tosyl) aminoquinoline] zinc complex and cadmium complex,
1,2,3,4-tetraphenylcyclopentadiene,
Pentaphenylcyclopentadiene, poly-2,5-diheptyloxy-para-phenylenevinylene, coumarin-based phosphor, perylene-based phosphor, pyran-based phosphor, anthrone-based phosphor, porphyrin-based phosphor, quinacridone-based phosphor, Low molecular materials such as N, N'-dialkyl-substituted quinacridone-based phosphors, naphthalimide-based phosphors, N, N'-diaryl-substituted pyrrolopyrrole-based phosphors, polyparaphenylenevinylene, poly (2-methoxy-5- ( 2 '
Ethylethoxy) -1,4-paraphenylenevinylene, poly (3-alkylthiophene), poly (9,9-
Conjugated polymer systems such as dialxylfluorene) and poly (paraphenylene), and poly (N-vinylcarbazole);
Known polymer materials such as polymer dispersions such as 2,5-bis (5-t-butyl-2,5-benzoxazoyl) thiophene and zinc bis-benzothiazole phenolate can be used.
【００２２】電子輸送材料の例としては、２−（４−ビ
フィニルイル）−５−（４−ｔ−ブチルフェニル）−
１，３，４−オキサジアゾール、及び浜田らの合成した
オキサジアゾール誘導体（日本化学会誌、１５４０頁、
１９９１年）やビス（１０−ヒドロキシベンゾ［ｈ］キ
ノリノラート）ベリリウム錯体、特開平７−９０２６０
号で述べられているトリアゾール化合物等が挙げられ
る。Examples of the electron transporting material include 2- (4-bifinylyl) -5- (4-t-butylphenyl)-
1,3,4-oxadiazole and oxadiazole derivatives synthesized by Hamada et al. (The Chemical Society of Japan, p. 1540,
1991) and bis (10-hydroxybenzo [h] quinolinolato) beryllium complex, JP-A-7-90260
And the like.
【００２３】有機ＥＬ層の形成方法としては、低分子材
料の場合は、抵抗加熱法等の真空蒸着法により成膜する
ことができる。また、高分子材料の場合は、真空蒸着法
または、前述した高分子材料をＮ，Ｎ−ジメチルホルム
アミド、Ｎ−メチルピロリドン、ジメチルスルホキシ
ド、プロピレンカーボネート、γ−ブチロラクトンなど
の有機溶媒や水に溶かした後、スピンコート法、キャス
ティング法、ディッピング法、バーコート法、ロールコ
ート法、グラビアコート法、マイクログラビア法などの
塗布法を用いて成膜することができる。有機ＥＬ層の膜
厚は、単層構造または多層構造により形成する場合にお
いても１０００ｎｍ以下であり、好ましくは５０〜１５
０ｎｍである。この時、プラスチック基材を巻き取りな
がら有機ＥＬ層を成膜することができる。As a method for forming the organic EL layer, in the case of a low molecular material, it can be formed by a vacuum evaporation method such as a resistance heating method. In the case of a polymer material, a vacuum evaporation method or the polymer material described above was dissolved in an organic solvent such as N, N-dimethylformamide, N-methylpyrrolidone, dimethyl sulfoxide, propylene carbonate, γ-butyrolactone, or water. Thereafter, a film can be formed by a coating method such as a spin coating method, a casting method, a dipping method, a bar coating method, a roll coating method, a gravure coating method, and a microgravure method. The thickness of the organic EL layer is 1000 nm or less even when it is formed in a single-layer structure or a multilayer structure, and is preferably
0 nm. At this time, the organic EL layer can be formed while winding the plastic substrate.
【００２４】次に、有機ＥＬ層の上に陰極層を形成す
る。陰極層の材料としては、電子注入効率の高い物質を
用いる。具体的にはＭｇ，Ａｌ，Ｙｂ等の金属単体を用
いたり、有機ＥＬ層と接する界面にＬｉや酸化Ｌｉ，Ｌ
ｉＦ等の化合物を１ｎｍ程度挟んで、安定性・導電性の
高いＡｌやＣｕを積層して用いる。Next, a cathode layer is formed on the organic EL layer. As a material for the cathode layer, a substance having a high electron injection efficiency is used. Specifically, a simple metal such as Mg, Al, or Yb may be used, or Li or Li, oxidized Li, L
Al and Cu having high stability and conductivity are stacked and used with a compound such as iF sandwiched by about 1 nm.
【００２５】または電子注入効率と安定性を両立させる
ため、低仕事関数であるＬｉ，Ｍｇ，Ｃａ，Ｂａ，Ｓ
ｒ，Ｌａ，Ｃｅ，Ｅｒ，Ｅｕ，Ｓｃ，Ｙ，Ｙｂ等の金属
１種以上と、安定なＡｇ，Ａｌ，Ｃｕ等の金属元素との
合金系が用いられる。具体的にはＭｇＡｇ，ＡｌＬｉ，
ＣｕＬｉ等の合金が使用できる。Alternatively, in order to achieve both electron injection efficiency and stability, low work functions of Li, Mg, Ca, Ba, S
An alloy system of at least one metal such as r, La, Ce, Er, Eu, Sc, Y, and Yb and a stable metal element such as Ag, Al, and Cu is used. Specifically, MgAg, AlLi,
Alloys such as CuLi can be used.
【００２６】陰極層の形成方法としては、材料に応じ
て、真空蒸着法、電子ビーム蒸着法、スパッタリング法
などを用いて成膜することができる。また、アルミニウ
ム箔などの金属箔を、プラスチック基材上に成膜した有
機ＥＬ層と重ね合わせ、熱圧着することで陰極層として
用いることができる。成膜する場合の陰極層の厚さは、
０．０１〜１μｍ程度が望ましく、さらに０．１５〜
０．３μｍが好ましい。As a method for forming the cathode layer, a film can be formed by a vacuum evaporation method, an electron beam evaporation method, a sputtering method, or the like depending on the material. In addition, a metal foil such as an aluminum foil can be used as a cathode layer by superimposing it on an organic EL layer formed on a plastic substrate and thermocompression bonding. The thickness of the cathode layer when forming a film,
It is preferably about 0.01 to 1 μm, more preferably 0.15 to 1 μm.
0.3 μm is preferred.
【００２７】金属箔を熱圧着する場合の陰極層の厚さ
は、取り扱いが容易な５μｍ以上が望ましく、さらに箔
のピンホールを防止するために１５μｍ以上が好まし
い。また、さらに取り扱いを容易にするために、金属箔
にポリエチレンテレフタレートなどのプラスチックフィ
ルムを予め有機ＥＬ表示素子と接する面と反対側の面に
ラミネートしておいても良い。陰極層を形成する際、プ
ラスチック基材を巻き取りながら陰極層を成膜すること
ができる。When the metal foil is thermocompressed, the thickness of the cathode layer is desirably 5 μm or more, which is easy to handle, and more desirably, 15 μm or more to prevent pinholes in the foil. Further, in order to further facilitate the handling, a plastic film such as polyethylene terephthalate may be previously laminated on the metal foil on the surface opposite to the surface in contact with the organic EL display element. When forming the cathode layer, the cathode layer can be formed while winding the plastic substrate.
【００２８】次に、上記により形成された積層体（プラ
スチック基材、第一電極層、有機ＥＬ層、第二電極層）
のプラスチック基材面にガラス板を配置し、プラスチッ
ク基材上の第二電極上に防湿性フィルムを配置し、取り
出し電極を被覆しないように同時に被覆、封止する。尚
プラスチック基材にＵＶ／Ｏ3処理やコロナ処理、プラ
ズマ処理等の表面処理を行ったり、プラスチック基材に
ＧｅＯやＳｉＯ2等の透明無機物を蒸着することにより
接着強度を向上させることができる。Next, the laminate (plastic substrate, first electrode layer, organic EL layer, second electrode layer) formed as described above
A glass plate is placed on the surface of the plastic substrate, a moisture-proof film is placed on the second electrode on the plastic substrate, and the take-out electrode is simultaneously covered and sealed so as not to cover the electrode. The adhesive strength can be improved by performing a surface treatment such as UV / O 3 treatment, corona treatment, or plasma treatment on the plastic base material, or by vapor-depositing a transparent inorganic substance such as GeO or SiO 2 on the plastic base material.
【００２９】ガラス板および防湿性フィルムの封止・接
着方法としては、ＵＶ硬化樹脂や熱硬化樹脂等を用いる
ことにより接着したり、ドライラミネート法等を用いる
ことができる。As a method for sealing and bonding the glass plate and the moisture-proof film, bonding can be performed by using a UV-curable resin or a thermosetting resin, or a dry laminating method can be used.
【００３０】この際、ガラス板と防湿性フィルムを別々
にプラスチック基材に接着すると、先に形成されるシー
ラント層（接着層）は、加圧または加熱または熱押圧を
２回行われる。このため、シーラント層が薄くなり接着
不良が発生する、シーラント層にクラックが入る等の封
止不良が生じる恐れがある。ここで、ガラス板と防湿性
フィルムを同時にプラスチック基材に接着することによ
り接着層に過剰な圧力および／または、熱が加わること
がなく、前述した封止不良を生じることなく封止するこ
とができる。At this time, when the glass plate and the moisture-proof film are separately bonded to the plastic substrate, the sealant layer (adhesive layer) formed first is subjected to pressure, heating or hot pressing twice. For this reason, there is a possibility that the sealant layer becomes thinner, resulting in poor adhesion, cracks in the sealant layer, or other poor sealing. Here, by simultaneously bonding the glass plate and the moisture-proof film to the plastic substrate, it is possible to perform sealing without causing excessive pressure and / or heat to the adhesive layer and without causing the above-described sealing failure. it can.
【００３１】また、使用する防湿性フィルムは、少なく
ともバリア層を有する必要がある。バリア層としては、
基材に酸化珪素、酸化アルミニウム、酸化クロム、酸化
マグネシウム等の金属酸化物、フッ化アルミニウム、フ
ッ化マグネシウム等の金属フッ化物、窒化珪素、窒化ア
ルミニウム、窒化クロムなどの金属窒化物を単層また
は、積層したフィルムや、アルミニウム、銅、ニッケ
ル、ステンレス、アルミニウム合金などを蒸着したフィ
ルムや、これら材料の金属箔や合金箔を用いることがで
きる。特に、ガスバリア性に優れる金属箔や合金箔を用
いることが好ましい。また、製造時の取り扱いを容易に
するために、基材としてポリエチレンテレフタレート、
ナイロン等のフィルムをラミネートしてもよい。The moisture-proof film used must have at least a barrier layer. As a barrier layer,
Metal oxide such as silicon oxide, aluminum oxide, chromium oxide and magnesium oxide, metal fluoride such as aluminum fluoride and magnesium fluoride, silicon nitride, aluminum nitride and metal nitride such as chromium nitride in a single layer or A laminated film, a film on which aluminum, copper, nickel, stainless steel, an aluminum alloy, or the like is deposited, a metal foil or an alloy foil of these materials can be used. In particular, it is preferable to use a metal foil or an alloy foil having excellent gas barrier properties. In addition, in order to facilitate handling at the time of manufacture, polyethylene terephthalate as a base material,
A film such as nylon may be laminated.
【００３２】また、シーラントフィルムを用い、ガラス
板をプラスチック基材に熱圧着すると同時に、防湿性フ
ィルムを有機ＥＬ表示素子が被覆されるように熱圧着す
ることができる。In addition, a glass plate can be thermocompression-bonded to a plastic substrate using a sealant film, and a moisture-proof film can be thermocompression-bonded so as to cover the organic EL display element.
【００３３】熱圧着する際には、ガラス板、シーラント
フィルム、プラスチック基材、防湿性フィルムをこの順
に積層させ、熱ロール間を通すことによりガラス板およ
び防湿性フィルムを同時にプラスチック基材に接着する
ことができる。At the time of thermocompression bonding, a glass plate, a sealant film, a plastic substrate, and a moisture-proof film are laminated in this order, and the glass plate and the moisture-proof film are simultaneously bonded to the plastic substrate by passing between hot rolls. be able to.
【００３４】プラスチック基材に、ガラス板と防湿性フ
ィルムを同時に熱圧着すると、有機ＥＬ層等が防湿性フ
ィルムにより熱ロール等から保護され、直接熱ロール等
が有機ＥＬ層等に接触することがない。 その為、有機
ＥＬ層等に膜欠陥が生じることがなく、有機ＥＬ表示素
子は膜欠陥による非発光部がない良好な発光を得ること
ができる。When a glass plate and a moisture-proof film are simultaneously thermocompression-bonded to a plastic substrate, the organic EL layer and the like are protected from the heat roll and the like by the moisture-proof film, and the heat roll and the like can directly contact the organic EL layer and the like. Absent. Therefore, a film defect does not occur in the organic EL layer or the like, and the organic EL display element can obtain good light emission without a non-light emitting portion due to the film defect.
【００３５】また、シーラントフィルムを、ガラス板、
プラスチック基材および防湿性フィルムと同時に供給す
ることにより、接着剤を塗布する工程を簡略化すること
ができるため生産性を向上することができる。Further, a sealant film is formed on a glass plate,
By simultaneously supplying the plastic substrate and the moisture-proof film, the process of applying the adhesive can be simplified, so that the productivity can be improved.
【００３６】本発明におけるシーラントフィルムとして
は、ポリエチレン、ポリプロピレン、エチレン−プロピ
レン共重合体などのポリオレフィンの酸変性物、エチレ
ン−酢酸ビニル共重合体の酸変性、エチレン−アクリル
酸共重合体、エチレン−メタクリル酸共重合体、アイオ
ノマーなどの熱可塑性接着性樹脂からなるフィルムを用
いることができる。Examples of the sealant film in the present invention include acid-modified polyolefins such as polyethylene, polypropylene and ethylene-propylene copolymer, acid-modified ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylic acid copolymer and ethylene-acrylic acid copolymer. A film made of a thermoplastic adhesive resin such as a methacrylic acid copolymer and an ionomer can be used.
【００３７】ガラス板とプラスチック基材をシーラント
フィルムを用いて熱圧着する場合は、前述した防湿性フ
ィルムにシーラント層を設ける必要がある。シーラント
層としては、前記シーラントフィルムと同様の材料を用
いることができる。特に、ガラス板と防湿性フィルムを
同時に熱圧着する為、シーラントフィルムと防湿性フィ
ルムのシーラント層は、同じ材料を用いていることが好
ましい。When a glass plate and a plastic substrate are thermocompression-bonded using a sealant film, it is necessary to provide a sealant layer on the moisture-proof film described above. As the sealant layer, the same material as the sealant film can be used. In particular, it is preferable that the same material is used for the sealant film and the sealant layer of the moisture-proof film because the glass plate and the moisture-proof film are simultaneously thermocompression-bonded.
【００３８】[0038]
【実施例】まず、本発明の有機ＥＬ表示素子の一実施例
を図１、比較例１の有機ＥＬ表示素子を図２に示す。First, an embodiment of the organic EL display device of the present invention is shown in FIG. 1, and an organic EL display device of Comparative Example 1 is shown in FIG.
【００３９】［実施例１］まず、プラスチック基材１と
して、ポリエチレンテレフタレートフィルム（１００μ
ｍ）を使用し、スパッタリング法で陽極層２としてＩＴ
Ｏ膜を厚さ１５０ｎｍで巻き取り成膜した。Example 1 First, a polyethylene terephthalate film (100 μm) was used as the plastic substrate 1.
m) as the anode layer 2 by the sputtering method.
The O film was rolled up to a thickness of 150 nm to form a film.
【００４０】次に、フォトリソグラフィー法およびウェ
ットエッチング法を用いて、フィルムを巻き取りながら
陽極層２をパターニングし、陽極取り出し電極２ａを兼
ねた陽極層２と陰極取り出し電極２ｂとを形成した。Next, the anode layer 2 was patterned by using a photolithography method and a wet etching method while winding the film to form an anode layer 2 also serving as an anode extraction electrode 2a and a cathode extraction electrode 2b.
【００４１】次に、正孔輸送層３として、ポリ（３，４
−エチレンジオキシチオフェン）とポリスチレンスルホ
ン酸との混合物をマイクログラビア法にて膜厚を２０ｎ
ｍで塗布した後、発光層４として、ポリ［２−メトキシ
−５−（２’−エチル−ヘキシロキシ）−１，４−フェ
ニレン ビニレン］（ＭＥＨ−ＰＰＶ）を用い、フィル
ムを巻き取りながらマイクログラビア法により膜厚１０
０ｎｍの塗膜を形成した。Next, as the hole transport layer 3, poly (3,4)
-Ethylenedioxythiophene) and a mixture of polystyrenesulfonic acid with a film thickness of 20 n by a microgravure method.
m, and then using micro [gravure] as the light emitting layer 4 while winding the film using poly [2-methoxy-5- (2′-ethyl-hexyloxy) -1,4-phenylenevinylene] (MEH-PPV). Film thickness 10 by method
A 0 nm coating was formed.
【００４２】次に、陰極層５として、Ｃａ、Ａｇを順に
６ｎｍ、２００ｎｍの膜厚で巻き取り蒸着して積層体１
２を作成した。Next, as the cathode layer 5, Ca and Ag were sequentially wound up and deposited to a thickness of 6 nm and 200 nm to form a laminate 1.
2 was created.
【００４３】次に、ガラス板６とエチレン−酢酸ビニル
共重合体の酸変性物からなるシーラントフィルム７を積
層体のプラスチック基材１面に配置し、エチレン−酢酸
ビニル共重合体の酸変性物からなるシーラント層とアル
ミニウム箔からなるバリア層をポリエチレンテレフタレ
ートフィルムに積層させた防湿性フィルム８を積層体１
２の第二電極層（陰極層５）が形成されている面に配置
後、熱ロール９、１０間を通すことによりガラス板６お
よび防湿性フィルム８を同時にプラスチック基材１に接
着することにより封止した。Next, a glass plate 6 and a sealant film 7 made of an acid-modified ethylene-vinyl acetate copolymer are disposed on one surface of the plastic substrate of the laminate, and an acid-modified ethylene-vinyl acetate copolymer is placed. Of a moisture-proof film 8 obtained by laminating a sealant layer made of aluminum and a barrier layer made of aluminum foil on a polyethylene terephthalate film
After being disposed on the surface on which the second electrode layer (cathode layer 5) is formed, the glass plate 6 and the moisture-proof film 8 are simultaneously adhered to the plastic substrate 1 by passing between the hot rolls 9 and 10. Sealed.
【００４４】この製造方法で得られた有機ＥＬ表示素子
は膜欠陥による非発光部が観察されず、４０℃，９０％
ＲＨの恒温槽で５００時間保存した結果、発光面積は初
期面積の９０％であった。In the organic EL display device obtained by this manufacturing method, no non-light-emitting portion due to a film defect was observed, and the temperature was 40 ° C., 90%
As a result of storing for 500 hours in a constant temperature bath of RH, the light emitting area was 90% of the initial area.
【００４５】［実施例２］実施例１と同様に基材巻き取
りによりプラスチック基材１上に有機ＥＬ層等を作製
後、まずガラス板６とエチレン−酢酸ビニル共重合体の
酸変性物からなるシーラントフィルム７を積層体１２の
プラスチック基材１面に配置し、熱ロール９、１０間を
通し、ガラス板６とプラスチック基材１を接着した。Example 2 An organic EL layer and the like were formed on the plastic substrate 1 by winding the substrate in the same manner as in Example 1, and then the glass plate 6 and an acid-modified ethylene-vinyl acetate copolymer were prepared first. The resulting sealant film 7 was placed on the surface of the plastic substrate 1 of the laminate 12, passed between the hot rolls 9 and 10, and the glass plate 6 and the plastic substrate 1 were bonded.
【００４６】次に、エチレン−酢酸ビニル共重合体の酸
変性物からなるシーラント層とアルミニウム箔からなる
バリア層をポリエチレンテレフタレートフィルムに積層
させた防湿性フィルム８を積層体１２のプラスチック基
材１面に配置し、熱ロール９、１０間を通すとこにより
ガラス板６とプラスチック基材１との積層物と防湿性フ
ィルム８とを接着することにより封止した。Next, a moisture-proof film 8 obtained by laminating a sealant layer made of an acid-modified ethylene-vinyl acetate copolymer and a barrier layer made of an aluminum foil on a polyethylene terephthalate film is applied to one side of the plastic substrate of the laminate 12. Then, the laminate between the glass plate 6 and the plastic substrate 1 was bonded to the moisture-proof film 8 by passing between the hot rolls 9 and 10 to seal the laminate.
【００４７】この製造方法で得られた有機ＥＬ表示素子
は、膜欠陥による非発光部が観察された。In the organic EL display device obtained by this manufacturing method, a non-light emitting portion due to a film defect was observed.
【００４８】[0048]
【発明の効果】本発明によれば、少なくともプラスチッ
ク基材上に第一電極層と有機エレクトロルミネッセンス
層と第二電極層を積層した積層体のプラスチック基材面
をガラス板により封止し、第二電極層面を防湿性フィル
ムにより被覆封止したこと、好ましくは、ガラス板と防
湿性フィルムで同時に接着積層する製造方法を採用する
ことにより、大気中の水分や酸素等の影響を極力除外
し、経時劣化が少なく、かつ有機ＥＬ表示素子が膜欠陥
を生じることなく、生産性を向上させることにより安価
な有機ＥＬ表示素子及びその製造方法を提供することが
できる。According to the present invention, at least the plastic substrate surface of the laminate in which the first electrode layer, the organic electroluminescent layer, and the second electrode layer are laminated on the plastic substrate is sealed with a glass plate. That the two electrode layer surface is covered and sealed with a moisture-proof film, preferably, by adopting a manufacturing method of simultaneously bonding and laminating with a glass plate and a moisture-proof film, to eliminate the influence of atmospheric moisture and oxygen as much as possible, It is possible to provide an inexpensive organic EL display element and a method for manufacturing the same by improving productivity without little deterioration over time and without causing film defects in the organic EL display element.
【００４９】[0049]
【図１】実施例１の有機ＥＬ表示素子の製造方法の一例
を示す断面図である。FIG. 1 is a sectional view illustrating an example of a method for manufacturing an organic EL display element of Example 1.
【図２】実施例２の有機ＥＬ表示素子の製造方法の一例
を示す断面図である。FIG. 2 is a sectional view illustrating an example of a method for manufacturing an organic EL display element of Example 2.
１ プラスチック基材 ２ 陽極層 ２ａ 陽極取り出し電極 ２ｂ 陰極取り出し電極 ３ 正孔輸送層 ４ 発光層 ５ 陰極層 ６ ガラス板 ７ シーラントフィルム ８ 防湿性フィルム ９、１０ 熱ロール １１ 有機ＥＬ層 １２ 積層体 DESCRIPTION OF SYMBOLS 1 Plastic base material 2 Anode layer 2a Anode extraction electrode 2b Cathode extraction electrode 3 Hole transport layer 4 Light emitting layer 5 Cathode layer 6 Glass plate 7 Sealant film 8 Moisture proof film 9, 10 Heat roll 11 Organic EL layer 12 Laminate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 湊 孝夫 東京都台東区台東１丁目５番１号 凸版印 刷株式会社内 Ｆターム(参考） 3K007 AB11 AB13 AB18 BB00 CA06 CB01 DA01 DB03 EA01 EB00 FA02 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takao Minato 1-5-1, Taito, Taito-ku, Tokyo Toppan Printing Co., Ltd. F-term (reference) 3K007 AB11 AB13 AB18 BB00 CA06 CB01 DA01 DB03 EA01 EB00 FA02
Claims (3)
層と有機エレクトロルミネッセンス層と第二電極層を積
層した積層体のプラスチック基材面に配置したガラス板
と、第二電極層面に配置した防湿性フィルムにより被覆
封止したことを特徴とする有機エレクトロルミネッセン
ス表示素子。1. A glass plate disposed on a plastic substrate surface of a laminate comprising a first electrode layer, an organic electroluminescent layer and a second electrode layer laminated on at least a plastic substrate, and a moisture proof disposed on a second electrode layer surface. An organic electroluminescent display element, which is covered and sealed with a conductive film.
層と有機エレクトロルミネッセンス層と第二電極層を積
層した積層体のプラスチック基材面に配置したガラス板
と、第二電極層面に配置した防湿性フィルムにより被覆
封止した有機エレクトロルミネッセンス表示素子の製造
方法において、 ガラス板及び防湿性フィルムによる被覆封止を同時に行
なうことを特徴とする有機エレクトロルミネッセンス表
示素子の製造方法。2. A glass plate disposed on a plastic substrate surface of a laminate comprising a first electrode layer, an organic electroluminescent layer and a second electrode layer laminated on at least a plastic substrate, and a moisture proof disposed on a second electrode layer surface. What is claimed is: 1. A method for producing an organic electroluminescent display element covered and sealed with a conductive film, comprising simultaneously performing the covering and sealing with a glass plate and a moisture-proof film.
ーラントフィルムにより接着させることを特徴とした請
求項２記載の有機エレクトロルミネッセンス表示素子の
製造方法。3. The method according to claim 2, wherein the plastic substrate and the glass plate are bonded with a sealant film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001115053A JP2002313558A (en) | 2001-04-13 | 2001-04-13 | Organic electroluminescence display element and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001115053A JP2002313558A (en) | 2001-04-13 | 2001-04-13 | Organic electroluminescence display element and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002313558A true JP2002313558A (en) | 2002-10-25 |
Family
ID=18966016
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001115053A Pending JP2002313558A (en) | 2001-04-13 | 2001-04-13 | Organic electroluminescence display element and its manufacturing method |
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| JP (1) | JP2002313558A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006048980A (en) * | 2004-08-02 | 2006-02-16 | Toppan Printing Co Ltd | Polymer electroluminescent element |
| JP2006293188A (en) * | 2005-04-14 | 2006-10-26 | Nippon Kayaku Co Ltd | Polarizing raw film, polarizing plate and its manufacturing method |
| JP2007042616A (en) * | 2005-06-29 | 2007-02-15 | Asahi Kasei Corp | Light emitting element, display device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04206386A (en) * | 1990-11-30 | 1992-07-28 | Idemitsu Kosan Co Ltd | Organic electroluminescence device |
| JPH07211455A (en) * | 1994-01-19 | 1995-08-11 | Idemitsu Kosan Co Ltd | Organic electroluminescent device |
| JPH11283744A (en) * | 1998-03-30 | 1999-10-15 | Denso Corp | Manufacture of el display panel |
| JPH11329715A (en) * | 1998-04-02 | 1999-11-30 | Cambridge Display Technol Ltd | Flexible substrate for organic device, and organic device and production of the same |
-
2001
- 2001-04-13 JP JP2001115053A patent/JP2002313558A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04206386A (en) * | 1990-11-30 | 1992-07-28 | Idemitsu Kosan Co Ltd | Organic electroluminescence device |
| JPH07211455A (en) * | 1994-01-19 | 1995-08-11 | Idemitsu Kosan Co Ltd | Organic electroluminescent device |
| JPH11283744A (en) * | 1998-03-30 | 1999-10-15 | Denso Corp | Manufacture of el display panel |
| JPH11329715A (en) * | 1998-04-02 | 1999-11-30 | Cambridge Display Technol Ltd | Flexible substrate for organic device, and organic device and production of the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006048980A (en) * | 2004-08-02 | 2006-02-16 | Toppan Printing Co Ltd | Polymer electroluminescent element |
| JP4506338B2 (en) * | 2004-08-02 | 2010-07-21 | 凸版印刷株式会社 | Method for producing polymer electroluminescence device |
| JP2006293188A (en) * | 2005-04-14 | 2006-10-26 | Nippon Kayaku Co Ltd | Polarizing raw film, polarizing plate and its manufacturing method |
| JP4562133B2 (en) * | 2005-04-14 | 2010-10-13 | 日本化薬株式会社 | Polarizing element film, polarizing plate, and manufacturing method thereof |
| JP2007042616A (en) * | 2005-06-29 | 2007-02-15 | Asahi Kasei Corp | Light emitting element, display device and manufacturing method thereof |
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