JP2002260847A - Electroluminescence element sealing film and sealed organic electroluminescence element - Google Patents

Electroluminescence element sealing film and sealed organic electroluminescence element

Info

Publication number
JP2002260847A
JP2002260847A JP2001052871A JP2001052871A JP2002260847A JP 2002260847 A JP2002260847 A JP 2002260847A JP 2001052871 A JP2001052871 A JP 2001052871A JP 2001052871 A JP2001052871 A JP 2001052871A JP 2002260847 A JP2002260847 A JP 2002260847A
Authority
JP
Japan
Prior art keywords
film
resin film
organic
sealing
organic electroluminescence
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
Application number
JP2001052871A
Other languages
Japanese (ja)
Inventor
Hiroshi Inada
宏 稲田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bando Chemical Industries Ltd
Original Assignee
Bando Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bando Chemical Industries Ltd filed Critical Bando Chemical Industries Ltd
Priority to JP2001052871A priority Critical patent/JP2002260847A/en
Publication of JP2002260847A publication Critical patent/JP2002260847A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • H10K50/844Encapsulations
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • H10K50/846Passivation; Containers; Encapsulations comprising getter material or desiccants

Abstract

PROBLEM TO BE SOLVED: To provide a sealing film that seals an organic EL element and cuts it out from water or oxygen and enables stable driving for a long period. SOLUTION: The organic EL element sealing film 11 has a vapor deposition membrane 13 of silicon oxide or aluminum on the surface of a gas barrier resin film 12 and is laminated with a moisture absorption resin film 14 having dispersed moisture absorbent on its rear surface, and an adhesive layer 15 is provided on the surface of this moisture absorption resin film. It is possible that a second gas barrier resin film is laminated on the surface of the above moisture absorption resin film and an adhesive layer is provided on the surface of this second gas barrier resin film.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、有機エレクトロル
ミネッセンス素子を水分や酸素から遮断して、長期間に
わたる安定な作動を可能とする封止用フィルムと、その
ようなフィルム中に有機エレクトロルミネッセンス素子
を密封、接着してなる封止有機エレクトロルミネッセン
ス素子に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing film which enables an organic electroluminescence element to be stable for a long period of time by shielding the element from moisture and oxygen, and an organic electroluminescence element contained in such a film. And a sealed organic electroluminescent device obtained by sealing and bonding the same.

【0002】[0002]

【従来の技術】有機エレクトロルミネッセンス素子(以
下、有機EL素子という。)は、低電圧直流駆動、高効
率、高輝度を有し、また、薄型化できるので、バックラ
イトや照明装置のほか、ディスプレイ装置として、その
実用化がすすめられている。
2. Description of the Related Art Organic electroluminescent elements (hereinafter, referred to as organic EL elements) have a low-voltage DC drive, high efficiency, and high brightness, and can be made thin. Practical use of the device has been promoted.

【0003】この有機EL素子は、代表的には、図1に
示すように、透明基板1、例えば、ガラス基板上に透明
電極からなる陽極2が積層されており、この陽極上に有
機正孔輸送層3、有機発光層4及び金属電極からなる陰
極5がこの順序にて積層されてなるものであり、上記陽
極と陰極は外部の電源6に接続されている。場合によっ
ては、有機発光層と陰極との間に有機電子輸送層(図示
せず)が積層されていてもよい。
In this organic EL device, as shown in FIG. 1, typically, a transparent substrate 1, for example, a glass substrate is laminated with an anode 2 composed of a transparent electrode, and an organic hole is formed on the anode. A transport layer 3, an organic light emitting layer 4, and a cathode 5 composed of a metal electrode are laminated in this order, and the anode and the cathode are connected to an external power source 6. In some cases, an organic electron transport layer (not shown) may be laminated between the organic light emitting layer and the cathode.

【0004】このような有機EL素子において、上記有
機正孔輸送層は、陽極に密着していて、この陽極から正
孔を有機発光層に輸送すると共に、電子をブロックし、
他方、有機電子輸送層は、陰極に密着していて、この陰
極から電子を有機発光層に輸送し、そこで、有機発光層
において、陰極から注入した電子と陽極から有機発光層
に注入した正孔とが再結合するときに発光が生じ、これ
が透明電極(陽極)と透明基板を通して外部に放射され
る。他方、上記陰極は、通常、仕事関数の小さい(4e
V以下)不透明な金属からなり、かくして、このような
有機EL素子によれば、有機発光層における発光は、上
述したように、透明電極(陽極)側から外部に取り出す
ことができる。
In such an organic EL device, the organic hole transport layer is in close contact with the anode, transports holes from the anode to the organic light emitting layer, and blocks electrons.
On the other hand, the organic electron transporting layer is in close contact with the cathode and transports electrons from the cathode to the organic light emitting layer, where the electrons injected from the cathode and the holes injected from the anode into the organic light emitting layer. When light is recombined, light emission occurs, which is emitted outside through the transparent electrode (anode) and the transparent substrate. On the other hand, the cathode usually has a small work function (4e
V or less) It is made of an opaque metal. Thus, according to such an organic EL element, light emission in the organic light emitting layer can be extracted from the transparent electrode (anode) side to the outside as described above.

【0005】このような有機EL素子によれば、上記有
機発光層を形成する蛍光性の有機物質が機械的強度が低
いうえに、熱、有機溶媒、水分、酸素等に敏感であっ
て、大気中で有機EL素子を作動させれば、短時間で上
記有機物質が劣化し、発光輝度が低下し、場合によって
は、素子の破壊が起こる。また、上記陰極を形成する金
属も、水分によって酸化されて、有機層との界面で剥離
したり、或いは酸化物を形成する結果、導電性が低下し
て、素子の発光輝度が低下する。
According to such an organic EL device, the fluorescent organic substance forming the organic light emitting layer has low mechanical strength, is sensitive to heat, an organic solvent, moisture, oxygen, etc. When the organic EL element is operated in the inside, the organic substance is deteriorated in a short time, the light emission luminance is reduced, and in some cases, the element is destroyed. Further, the metal forming the cathode is also oxidized by moisture, and peels off at the interface with the organic layer or forms an oxide. As a result, the conductivity decreases, and the light emission luminance of the element decreases.

【0006】そこで、従来、有機EL素子を水分や酸素
から遮断して、上述したような問題に対処するために、
有機EL素子に金属管を被せて、素子を封止したり、ま
た、樹脂フィルム内に接着して、素子を封止したりして
いるが、しかし、金属管による封止は水分や酸素からの
遮断効果にはすぐれるが、嵩高いので、薄膜化し得ると
いう有機EL素子素子の本来的な利点を活かすことがで
きない。更に、金属管は取扱いにも不便であり、有機E
L素子の製造の工程数を増やし、製造費用を高めること
ともなる。
Therefore, conventionally, in order to cope with the above-described problem by shielding the organic EL element from moisture and oxygen,
The organic EL element is covered with a metal tube to seal the element, or is bonded to a resin film to seal the element. However, the metal tube is sealed from moisture and oxygen. Is excellent, but it is bulky, so that the inherent advantage of the organic EL element, which can be made thin, cannot be utilized. Furthermore, metal tubes are inconvenient to handle, and organic E
The number of steps for manufacturing the L element is increased, which also increases the manufacturing cost.

【0007】他方、樹脂フィルムによる封止によれば、
簡便であり、また、上記金属管を用いる場合の嵩高さの
問題は解消できるが、反面、水分や酸素からの遮断効果
が不十分であって、例えば、連続して7日間作動させれ
ば、発光輝度が大きく低下して、実用に耐えない場合が
ある。
On the other hand, according to sealing with a resin film,
Although it is simple and can solve the problem of bulkiness when using the above metal tube, on the other hand, the effect of shutting off moisture and oxygen is insufficient, for example, if operated continuously for 7 days, There is a case where the light emission luminance is greatly reduced and cannot be put to practical use.

【0008】[0008]

【発明が解決しようとする課題】本発明は、従来の有機
EL素子における上述したような問題を解決するために
なされたものであって、従来の金属管や樹脂フィルムに
代わって、有機EL素子を封止して、水分や酸素から遮
断して、長期間にわたる安定な作動を可能とするための
フィルム、即ち、有機EL素子封止用フィルムを提供す
ることを目的とする。更に、本発明は、そのようなフィ
ルム中に有機EL素子を密封、接着してなる封止有機E
L素子に関する。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the conventional organic EL device, and is intended to replace the conventional metal tube or resin film with the organic EL device. It is an object of the present invention to provide a film for sealing for preventing a moisture or oxygen and enabling a stable operation for a long time, that is, a film for sealing an organic EL element. Further, the present invention relates to a method for sealing and bonding an organic EL element in such a film.
It relates to the L element.

【0009】[0009]

【課題を解決するための手段】本発明による有機EL素
子用封止用フィルムは、ガスバリヤ性樹脂フィルムの表
面にケイ素酸化物又はアルミニウムの蒸着膜を有せしめ
ると共に、裏面に吸湿剤を分散させた吸湿性樹脂フィル
ムを積層し、この吸湿性樹脂フィルムの表面に接着剤層
を有せしめてなることを特徴とする。かかる本発明の有
機EL素子用封止用フィルムによれば、有機EL素子の
発光層や陰極の劣化を効果的に防止しすることができ
る。
The sealing film for an organic EL device according to the present invention has a vapor-deposited film of silicon oxide or aluminum on the surface of a gas barrier resin film and a moisture absorbent dispersed on the back surface. A hygroscopic resin film is laminated, and an adhesive layer is provided on the surface of the hygroscopic resin film. According to the sealing film for an organic EL element of the present invention, it is possible to effectively prevent the light emitting layer and the cathode of the organic EL element from deteriorating.

【0010】また、本発明によれば、上記吸湿性樹脂フ
ィルムの表面に第2のガスバリヤ性樹脂フィルムを積層
し、この第2のガスバリヤ性樹脂フィルムの表面に接着
剤層を有せしめてもよい。
According to the present invention, a second gas barrier resin film may be laminated on the surface of the hygroscopic resin film, and an adhesive layer may be provided on the surface of the second gas barrier resin film. .

【0011】[0011]

【発明の実施の形態】図2に本発明による有機EL素子
封止用フィルム11の基本的な一実施例を示す。即ち、
本発明による有機EL素子封止用フィルム11は、ガス
バリヤ性樹脂フィルム12の表面にケイ素酸化物又はア
ルミニウムの蒸着膜13を有すると共に、裏面に吸湿剤
を分散させた吸湿性樹脂フィルム14を有し、この吸湿
性樹脂フィルムの表面に接着剤層15を有する。
FIG. 2 shows a basic embodiment of an organic EL element sealing film 11 according to the present invention. That is,
The organic EL device sealing film 11 according to the present invention has a vapor-deposited film 13 of silicon oxide or aluminum on the surface of a gas barrier resin film 12 and a hygroscopic resin film 14 in which a hygroscopic agent is dispersed on the back surface. The adhesive layer 15 is provided on the surface of the hygroscopic resin film.

【0012】上記ガスバリヤ性樹脂フィルムとは、特
に、水蒸気(水分)及び酸素に対する遮断性にすぐれる
樹脂フィルムをいう。従って、ガスバリヤ性樹脂フィル
ムとして、例えば、ポリエチレンテレフタレート、ポリ
エチレンナフチレート、ポリエチレン、ポリプロピレ
ン、ポリスチレン等からなるフィルムが用いられるが、
好ましくは、ポリエチレンテレフタレートフィルムが用
いられる。ガスバリヤ性樹脂フィルムは、通常、5〜5
00μm、好ましくは、10〜100μmの範囲の厚み
を有する。
The above-mentioned gas barrier resin film refers to a resin film having an excellent barrier property against water vapor (moisture) and oxygen. Therefore, as the gas barrier resin film, for example, a film made of polyethylene terephthalate, polyethylene naphthylate, polyethylene, polypropylene, polystyrene, etc. is used,
Preferably, a polyethylene terephthalate film is used. The gas barrier resin film is usually 5 to 5
It has a thickness in the range of 00 μm, preferably 10-100 μm.

【0013】本発明によれば、上記ガスバリヤ性樹脂フ
ィルムは、その表面にケイ素酸化物又はアルミニウムの
蒸着膜を有し、これらの蒸着膜によって、ガスバリヤ性
樹脂フィルムは、水蒸気及び酸素に対して、更に高いバ
リヤ性を有する。これらの蒸着膜は、例えば、真空蒸
着、イオンプレーティング、スパッタリング等の真空薄
膜形成技術を用いて製膜することができる。また、これ
らの蒸着膜の厚みは、通常、5nmから100μmの範
囲であり、好ましくは、10nmから10μmの範囲で
ある。
According to the present invention, the gas barrier resin film has a silicon oxide or aluminum vapor-deposited film on its surface, and the gas-barrier resin film is exposed to water vapor and oxygen by these vapor-deposited films. Has even higher barrier properties. These deposited films can be formed by using a vacuum thin film forming technique such as vacuum deposition, ion plating, and sputtering. Further, the thickness of these deposited films is usually in the range of 5 nm to 100 μm, preferably in the range of 10 nm to 10 μm.

【0014】本発明によれば、上記ガスバリヤ性樹脂フ
ィルムは、裏面に吸湿剤を分散させた吸湿性フィルムが
積層されている。上記吸湿剤としては、例えば、酸化カ
ルシウムや酸化バリウムのようなアルカリ土類金属酸化
物が好ましいが、しかし、シリカゲルやアルミナ等も用
いられる。特に、限定されるものではないが、樹脂フィ
ルムは、通常、10〜40重量%の範囲でこのような吸
湿剤を含む。
According to the present invention, the gas barrier resin film has a back surface laminated with a moisture absorbing film in which a moisture absorbing agent is dispersed. As the above-mentioned moisture absorbing agent, for example, alkaline earth metal oxides such as calcium oxide and barium oxide are preferable, but silica gel, alumina and the like are also used. Although not particularly limited, the resin film usually contains such a moisture absorbent in the range of 10 to 40% by weight.

【0015】他方、吸湿性樹脂フィルムとしては、例え
ば、ポリアミド、ポリビニルアルコール、エチレン−ビ
ニルアルコール共重合体樹脂、ビニルアルコール−アク
リル酸エステル共重合体等からなるフィルムが用いられ
る。また、必要に応じて、塩化ビニル樹脂フィルムも用
いられる。しかし、本発明によれば、特に、エチレン−
ビニルアルコール共重合体樹脂フィルムが好ましく用い
られる。このような吸湿性フィルムは、通常、10〜5
00μmの範囲、好ましくは、50〜250μmの範囲
の厚みを有する。
On the other hand, as the hygroscopic resin film, for example, a film made of polyamide, polyvinyl alcohol, ethylene-vinyl alcohol copolymer resin, vinyl alcohol-acrylate copolymer, or the like is used. In addition, a vinyl chloride resin film is used if necessary. However, according to the invention, in particular, ethylene-
A vinyl alcohol copolymer resin film is preferably used. Such a hygroscopic film is usually 10 to 5
It has a thickness in the range of 00 μm, preferably in the range of 50-250 μm.

【0016】本発明による有機EL素子封止用フィルム
は、このような吸湿性樹脂フィルムの表面に接着剤層を
有する。この接着剤としては、特に、限定されるもので
はないが、例えば、ウレタン系接着剤、エポキシ系接着
剤、アクリル系接着剤、シアノアクリレート系接着剤が
用いられる。これら接着剤は、水性、溶剤型、無溶剤型
のいずれでもよく、また、熱硬化性や光硬化性であって
もよい。例えば、光硬化性樹脂接着剤は、有機EL素子
をフィルム中に密封,接着する際に、加熱を必要としな
いので、本発明において、好ましく用いられる接着剤の
一例である。このような光硬化性樹脂接着剤、例えば、
光硬化性エポキシ系接着剤等は、市販品がそのまま用い
られる。
The film for sealing an organic EL element according to the present invention has an adhesive layer on the surface of such a hygroscopic resin film. As the adhesive, although not particularly limited, for example, a urethane adhesive, an epoxy adhesive, an acrylic adhesive, and a cyanoacrylate adhesive are used. These adhesives may be water-based, solvent-based, or non-solvent-based, and may be thermosetting or photocurable. For example, a photo-curable resin adhesive is an example of an adhesive that is preferably used in the present invention because it does not require heating when sealing and bonding an organic EL element in a film. Such a photocurable resin adhesive, for example,
As the photocurable epoxy-based adhesive and the like, commercially available products are used as they are.

【0017】図3に本発明による有機EL素子封止用フ
ィルム11の第2の実施例を示す。即ち、本発明による
有機EL素子封止用フィルム11は、ガスバリヤ性樹脂
フィルム12の表面にケイ素酸化物又はアルミニウムの
蒸着膜13を有すると共に、裏面に吸湿剤を分散させた
吸湿性樹脂フィルム14を有し、この吸湿性樹脂フィル
ムの表面に、更に、第2のガスバリヤ性樹脂フィルム1
6を有し、この第2のガスバリヤ性樹脂フィルムの表面
に接着剤層15を有する。
FIG. 3 shows a second embodiment of the film 11 for sealing an organic EL element according to the present invention. That is, the film 11 for sealing an organic EL element according to the present invention comprises a gas-barrier resin film 12 having a silicon oxide or aluminum vapor-deposited film 13 on the surface thereof, And a second gas barrier resin film 1 on the surface of the hygroscopic resin film.
6 and an adhesive layer 15 on the surface of the second gas barrier resin film.

【0018】即ち、この第2の実施例においては、第1
の実施例に比べて、吸湿性樹脂フィルム14と接着剤層
15との間に第2のガスバリヤ性樹脂フィルム16が積
層されている点においてのみ、相違するが、この第2の
ガスバリヤ性樹脂フィルムは、前記第1のガスバリヤ性
樹脂フィルムと同じであってよい。
That is, in the second embodiment, the first
The second gas barrier resin film differs from the second embodiment only in that a second gas barrier resin film 16 is laminated between the hygroscopic resin film 14 and the adhesive layer 15. May be the same as the first gas barrier resin film.

【0019】本発明によるフィルムを用いて封止するこ
とができる有機EL素子は、その構造において、特に、
限定されるものではない。従って、代表的には、先に、
図1に基づいて説明したようなものであるが、しかし、
本発明は、有機EL素子の構成によって何ら制約を受け
るものではない。従って、例えば、陰極が透明であって
もよい。
The organic EL device which can be sealed using the film according to the present invention has, in its structure,
It is not limited. Therefore, typically, first,
As described with reference to FIG. 1, but
The present invention is not at all limited by the configuration of the organic EL element. Thus, for example, the cathode may be transparent.

【0020】図4は、上述したような封止フィルム23
を用いて、有機EL素子22を基板21上に密封、接着
してなる封止有機EL素子を示す。
FIG. 4 shows the sealing film 23 as described above.
The sealing organic EL element formed by sealing and bonding the organic EL element 22 on the substrate 21 by using FIG.

【0021】代表的な有機EL素子について説明すれ
ば、透明基板としては、通常、ガラス基板が用いられ、
陽極としては、例えば、酸化インジウムスズ(ITO)
や酸化インジウム、酸化スズ等からなる透明電極が用い
られる。陽極の厚さは、通常、0.01〜1μmの範囲で
あり、好ましくは、0.01〜0.5μmの範囲である。ま
た、有機正孔輸送層には、例えば、4,4'−ビス(N,N
−フェニル−m−トリルアミノ)ジフェニルアミン(T
PD)や4,4',4" −トリス(N,N−フェニル−m−ト
リルアミノ)トリフェニルアミン(MTDATA)が用
いられ、その膜厚は、通常、1nmから1μmの範囲で
ある。有機発光層には、例えば、トリス(8−キノリノ
ール)アルミニウム(Alq3 )が用いられ、その膜厚
は、通常、1nmから1μmの範囲である。また、EL
素子が電子輸送層を含むときは、その膜厚は、通常、1
nmから1μmの範囲であり、導電性高分子層を含むと
きは、その膜厚は、通常、1〜100nmの範囲であ
る。
To explain a typical organic EL device, a glass substrate is usually used as a transparent substrate.
As the anode, for example, indium tin oxide (ITO)
And a transparent electrode made of indium oxide, tin oxide, or the like. The thickness of the anode is usually in the range of 0.01 to 1 μm, preferably in the range of 0.01 to 0.5 μm. Further, for example, 4,4′-bis (N, N
-Phenyl-m-tolylamino) diphenylamine (T
PD) and 4,4 ', 4 "-tris (N, N-phenyl-m-tolylamino) triphenylamine (MTDATA) are used, and their film thickness is usually in the range of 1 nm to 1 μm. For example, tris (8-quinolinol) aluminum (Alq 3 ) is used for the layer, and its film thickness is usually in the range of 1 nm to 1 μm.
When the device includes an electron transport layer, the film thickness is usually 1
The thickness is in the range of 1 nm to 1 μm, and when the conductive polymer layer is included, the thickness thereof is usually in the range of 1 to 100 nm.

【0022】陰極には、仕事関数の小さい(4eV以
下)金属、例えば、マグネシウム、カルシウム、カリウ
ム、ナトリウム、リチウム等が好ましく用いられる。ま
た、このような仕事関数の小さい金属と、仕事関数の大
きい(4eVを越える)金属、例えば、アルミニウム、
銀等との混合物又は合金も用いられる。
For the cathode, a metal having a small work function (4 eV or less), for example, magnesium, calcium, potassium, sodium, lithium or the like is preferably used. Further, such a metal having a small work function and a metal having a large work function (exceeding 4 eV), for example, aluminum,
A mixture or alloy with silver or the like is also used.

【0023】[0023]

【実施例】以下に実施例を挙げて本発明を説明するが、
本発明はこれら実施例により何ら限定されるものではな
い。
EXAMPLES The present invention will be described below with reference to examples.
The present invention is not limited by these examples.

【0024】実施例1 吸湿剤として、酸化バリウム20重量%を分散させた厚
み200μmの塩化ビニル樹脂フィルムの表面に厚み1
5μmのポリエチレンテレフタレートフィルムをラミネ
ート加工して積層フィルムとした。この積層フィルムの
ポリエチレンテレフタレートフィルム表面にプライマー
処理を施した後、アルミニウムを50nmの厚みに真空
蒸着し、他方、上記塩化ビニル樹脂フィルムの裏面に光
硬化性エポキシ系接着剤層を設けて、本発明による有機
EL素子封止用フィルムを得た。
Example 1 A 200 μm thick vinyl chloride resin film in which 20% by weight of barium oxide was dispersed as a hygroscopic agent
A laminated film was formed by laminating a 5 μm polyethylene terephthalate film. After performing a primer treatment on the surface of the polyethylene terephthalate film of the laminated film, aluminum is vacuum-deposited to a thickness of 50 nm, and on the other hand, a photocurable epoxy-based adhesive layer is provided on the back surface of the vinyl chloride resin film. To obtain a film for sealing an organic EL device.

【0025】酸化インジウムスズ(ITO)透明電極上
に膜厚50nmのMTDATA層と膜厚10nmのTP
D層とをこの順序でそれぞれ真空蒸着にて積層して正孔
輸送層とし、この正孔輸送層上に発光層(Alq3 層、
膜厚50nm)を真空蒸着して積層し、更に、この発光
層の上にマグネシウム−銀合金(膜厚200nm)を真
空蒸着して、有機EL素子を形成した。図4に示すよう
に、上記フィルムで上記有機EL素子を基板上に固定す
るように密封、接着した。
An MTDATA layer having a thickness of 50 nm and a TP having a thickness of 10 nm are formed on an indium tin oxide (ITO) transparent electrode.
The D layer is laminated in this order by vacuum evaporation to form a hole transport layer. On this hole transport layer, a light emitting layer (Alq 3 layer,
(Film thickness: 50 nm) was vacuum-deposited and laminated, and a magnesium-silver alloy (film thickness: 200 nm) was further vacuum-deposited on the light emitting layer to form an organic EL device. As shown in FIG. 4, the organic EL element was sealed and adhered to the substrate so as to be fixed on the substrate.

【0026】室温(25℃)、相対湿度70%の条件
下、このように、封止フィルムで基板上に密封した有機
EL素子に初期輝度が300cd/m2 となるように電
圧を印加して作動させ、その輝度の経時変化を調べた。
結果を表1に示す。
Under the conditions of room temperature (25 ° C.) and a relative humidity of 70%, a voltage is applied to the organic EL element thus sealed on the substrate with the sealing film so that the initial luminance becomes 300 cd / m 2. It was turned on and its luminance was examined over time.
Table 1 shows the results.

【0027】実施例2 吸湿剤として、酸化バリウム20重量%を分散させた厚
み200μmのエチレン−ビニルアルコール共重合体樹
脂フィルムの表裏面に厚み20μmのポリエチレンテレ
フタレートフィルムをそれぞれラミネート加工して積層
フィルムとした。この積層フィルムの一方のポリエチレ
ンテレフタレートフィルムの表面にプライマー処理を施
した後、アルミニウムを50nmの厚みに真空蒸着し、
他方のポリエチレンテレフタレートフィルムの表面に光
硬化性エポキシ系接着剤層を設けて、本発明による有機
EL素子封止用フィルムを得た。
Example 2 A 20 μm thick polyethylene terephthalate film was laminated on the front and back surfaces of a 200 μm thick ethylene-vinyl alcohol copolymer resin film in which 20% by weight of barium oxide was dispersed as a moisture absorbent. did. After performing a primer treatment on the surface of one polyethylene terephthalate film of the laminated film, aluminum is vacuum-deposited to a thickness of 50 nm,
A photocurable epoxy-based adhesive layer was provided on the surface of the other polyethylene terephthalate film to obtain an organic EL device sealing film according to the present invention.

【0028】このフィルムを用いて、実施例1と同じ有
機EL素子を実施例1と同様にして基板上に密封、接着
した。このように、封止フィルムで基板上に密封した有
機EL素子に初期輝度が300cd/m2 となるように
電圧を印加して作動させ、その輝度の経時変化を調べ
た。結果を表1に示す。
Using this film, the same organic EL device as in Example 1 was sealed and adhered to a substrate in the same manner as in Example 1. As described above, the organic EL element sealed on the substrate with the sealing film was operated by applying a voltage so that the initial luminance became 300 cd / m 2, and the change with time of the luminance was examined. Table 1 shows the results.

【0029】実施例3 吸湿剤として、酸化バリウム20重量%を分散させた厚
み200μmのポリビニルアルコール樹脂フィルムの表
裏面に厚み20μmのポリエチレンテレフタレートフィ
ルムをそれぞれラミネート加工にて積層フィルムとし、
この積層フィルムの一方のポリエチレンテレフタレート
フィルム表面にプライマー処理した後、酸化ケイ素を5
0nmの厚みに真空蒸着し、他方のポリエチレンテレフ
タレートフィルム表面に光硬化性エポキシ接着剤層を設
けて、本発明による有機EL素子封止用フィルムを得
た。
Example 3 As a hygroscopic agent, a 20 μm-thick polyethylene terephthalate film was laminated on both sides of a 200 μm-thick polyvinyl alcohol resin film in which 20% by weight of barium oxide was dispersed to form a laminated film.
After a primer treatment is performed on one polyethylene terephthalate film surface of this laminated film,
Vacuum evaporation was performed to a thickness of 0 nm, and a photocurable epoxy adhesive layer was provided on the surface of the other polyethylene terephthalate film to obtain an organic EL device sealing film according to the present invention.

【0030】上記フィルムを用いて、実施例1と同じ有
機EL素子を実施例1と同様にして、基板上に固定する
ように密封、接着した。このように、封止フィルムで封
止した有機EL素子に、初期輝度が300cd/m2
なるように、電圧を印加して作動させ、素子の輝度の経
時変化を調べた。結果を表1に示す。
Using the above-mentioned film, the same organic EL device as in Example 1 was sealed and bonded so as to be fixed on a substrate in the same manner as in Example 1. Thus, the organic EL device sealed with the sealing film was operated by applying a voltage so that the initial brightness became 300 cd / m 2, and the change over time in the brightness of the device was examined. Table 1 shows the results.

【0031】比較例1 実施例1と同じ有機EL素子をそのまま、大気中に露出
して、封止フィルム内に密封、接着することなく、実施
例1と同様に作動させて、その輝度の経時変化を調べ
た。結果を表1に示す。
COMPARATIVE EXAMPLE 1 The same organic EL device as in Example 1 was exposed to the air as it was, and was sealed in a sealing film and operated in the same manner as in Example 1 without being adhered. The changes were examined. Table 1 shows the results.

【0032】比較例2 開口部と底部を有する高さか10mmの金属管の底部に
酸化バリウムを充填し、その上に通気性の詰め材として
脱脂綿を充填して、封止用金属管とした。実施例1と同
じ有機EL素子を基板上に置き、上記封止用金属管を上
記有機EL素子を覆うように被せた後、この金属管をエ
ポキシ樹脂接着剤にて基板に接着、固定して、有機EL
素子を金属管内に封止した。
Comparative Example 2 A metal tube having a height of 10 mm having an opening and a bottom was filled with barium oxide, and absorbent cotton was filled as a gas-permeable filling material on the bottom to obtain a metal tube for sealing. The same organic EL element as in Example 1 was placed on a substrate, and the sealing metal tube was covered so as to cover the organic EL element. Then, the metal tube was bonded and fixed to the substrate with an epoxy resin adhesive. , Organic EL
The device was sealed in a metal tube.

【0033】実施例1と同様にして、基板上で金属管内
に封止した有機EL素子に初期輝度が300cd/m2
となるように電圧を印加して作動させ、その輝度の経時
変化を調べた。結果を表1に示す。
In the same manner as in Example 1, the organic EL device sealed in a metal tube on the substrate had an initial luminance of 300 cd / m 2.
The device was operated by applying a voltage so as to obtain a change in luminance over time. Table 1 shows the results.

【0034】比較例3 酸化バリウムを含まない厚み200μmのエチレン−ビ
ニルアルコール共重合体樹脂フィルムの表裏面に厚み2
0μmのポリエチレンテレフタレートフィルムをそれぞ
れラミネート加工して積層フィルムとした。この積層フ
ィルムの一方のポリエチレンテレフタレートフィルムの
表面にプライマー処理を施した後、アルミニウムを50
nmの厚みに真空蒸着し、他方のポリエチレンテレフタ
レートフィルムの表面に光硬化性エポキシ系接着剤層を
設けて、有機EL素子封止用フィルムを得た。
Comparative Example 3 A 200 μm thick ethylene-vinyl alcohol copolymer resin film containing no barium oxide was coated on the front and back surfaces with a thickness of 2 μm.
Each of the 0 μm polyethylene terephthalate films was laminated to form a laminated film. After performing a primer treatment on the surface of one polyethylene terephthalate film of the laminated film, 50
The film was vacuum-deposited to a thickness of nm, and a photocurable epoxy-based adhesive layer was provided on the surface of the other polyethylene terephthalate film to obtain a film for sealing an organic EL device.

【0035】このフィルムを用いて、実施例1と同じ有
機EL素子を実施例1と同様にして基板上に密封、接着
した。実施例1と同様にして、このように、封止フィル
ムで基板上に密封した有機EL素子に初期輝度が300
cd/m2 となるように電圧を印加して作動させ、その
輝度の経時変化を調べた。結果を表1に示す。
Using this film, the same organic EL device as in Example 1 was sealed and adhered to a substrate in the same manner as in Example 1. In the same manner as in Example 1, the organic EL element sealed on the substrate with the sealing film has an initial luminance of 300.
The device was operated by applying a voltage so as to attain cd / m 2, and the change over time in the luminance was examined. Table 1 shows the results.

【0036】[0036]

【表1】 [Table 1]

【0037】[0037]

【発明の効果】以上のように、本発明による有機EL素
子用封止用フィルムは、水分及び酸素のバリヤ性にすぐ
れており、有機EL素子をこのフィルム中に密封、接着
することによって、長期間にわたって安定に作動させる
ことができる。しかも、従来の金属管に比べて、取扱い
が容易であり、嵩張らない。
As described above, the sealing film for an organic EL device according to the present invention has an excellent barrier property against moisture and oxygen. By sealing and adhering the organic EL device into the film, the sealing film is long. It can be operated stably over a period. Moreover, it is easier to handle and less bulky than a conventional metal tube.

【図面の簡単な説明】[Brief description of the drawings]

【図1】は、通常の有機エレクトロルミネッセンス素子
の断面図である。
FIG. 1 is a cross-sectional view of a normal organic electroluminescence element.

【図2】は、本発明による有機EL素子封止用フィルム
の一実施例を示す要部断面図である。
FIG. 2 is a cross-sectional view of an essential part showing one embodiment of the film for sealing an organic EL element according to the present invention.

【図3】は、本発明による有機EL素子封止用フィルム
の別の一実施例を示す要部断面図である。
FIG. 3 is a sectional view of a main part showing another embodiment of the film for sealing an organic EL element according to the present invention.

【図4】は、本発明による封止有機EL素子を示す要部
断面図である。
FIG. 4 is a sectional view of a main part showing a sealed organic EL device according to the present invention.

【符号の説明】 1…透明基板 2…透明電極(陽極) 3…有機正孔輸送層 4…有機発光層 5…金属電極(陰極) 6…電源 7…金属超薄膜 8…透明電極 11…有機EL素子封止用フィルム 12…(第1の)ガスバリヤ性樹脂フィルム 13…ケイ素酸化物又はアルミニウムの蒸着膜 14…吸湿性樹脂フィルム 15…接着剤層 16…第2のガスバリヤ性樹脂フィルム 21…基板 22…有機EL素子 23…封止フィルム[Description of Signs] 1 ... Transparent substrate 2 ... Transparent electrode (anode) 3 ... Organic hole transport layer 4 ... Organic light emitting layer 5 ... Metal electrode (cathode) 6 ... Power supply 7 ... Ultra thin metal film 8 ... Transparent electrode 11 ... Organic EL element sealing film 12 ... (first) gas barrier resin film 13 ... vapor-deposited film of silicon oxide or aluminum 14 ... hygroscopic resin film 15 ... adhesive layer 16 ... second gas barrier resin film 21 ... substrate 22: Organic EL element 23: Sealing film

Claims (13)

【特許請求の範囲】[Claims] 【請求項1】ガスバリヤ性樹脂フィルムの表面にケイ素
酸化物又はアルミニウムの蒸着膜を有せしめると共に、
裏面に吸湿剤を分散させた吸湿性樹脂フィルムを積層
し、この吸湿性樹脂フィルムの表面に接着剤層を有せし
めてなることを特徴とする有機エレクトロルミネッセン
ス用封止用フィルム。
1. A gas barrier resin film having a silicon oxide or aluminum vapor deposited film on its surface,
A sealing film for organic electroluminescence, characterized in that a hygroscopic resin film in which a hygroscopic agent is dispersed is laminated on the back surface, and an adhesive layer is provided on the surface of the hygroscopic resin film.
【請求項2】ガスバリヤ性樹脂フィルムがポリエチレン
テレフタレートフィルムからなる請求項1に記載の有機
エレクトロルミネッセンス用封止用フィルム。
2. The film for sealing organic electroluminescence according to claim 1, wherein the gas barrier resin film comprises a polyethylene terephthalate film.
【請求項3】吸湿性樹脂フィルムがエチレン−ビニルア
ルコール共重合体樹脂フィルムからなる請求項1に記載
の有機エレクトロルミネッセンス用封止用フィルム。
3. The sealing film for organic electroluminescence according to claim 1, wherein the hygroscopic resin film comprises an ethylene-vinyl alcohol copolymer resin film.
【請求項4】吸湿剤がアルカリ土類金属酸化物である請
求項1に記載の有機エレクトロルミネッセンス用封止用
フィルム。
4. The sealing film for organic electroluminescence according to claim 1, wherein the hygroscopic agent is an alkaline earth metal oxide.
【請求項5】吸湿剤がシリカゲル又はアルミナである請
求項1に記載の有機エレクトロルミネッセンス用封止用
フィルム。
5. The film for sealing organic electroluminescence according to claim 1, wherein the desiccant is silica gel or alumina.
【請求項6】接着剤が光硬化性樹脂接着剤である請求項
1に記載の有機エレクトロルミネッセンス用封止用フィ
ルム。
6. The sealing film for organic electroluminescence according to claim 1, wherein the adhesive is a photocurable resin adhesive.
【請求項7】第1のガスバリヤ性樹脂フィルムの表面に
ケイ素酸化物又はアルミニウムの蒸着膜を有せしめると
共に、裏面に吸湿剤を分散させた吸湿性樹脂フィルムを
積層し、この吸湿性樹脂フィルムの表面に第2のガスバ
リヤ性樹脂フィルムを積層し、更に、この第2のガスバ
リヤ性樹脂フィルムの表面に接着剤層を有せしめてなる
ことを特徴とする有機エレクトロルミネッセンス用封止
用フィルム。
7. A first gas barrier resin film having a silicon oxide or aluminum vapor deposited film on the surface thereof and a hygroscopic resin film having a hygroscopic agent dispersed on the back surface thereof. A sealing film for organic electroluminescence, wherein a second gas barrier resin film is laminated on the surface, and an adhesive layer is further provided on the surface of the second gas barrier resin film.
【請求項8】第1及び/又は第2のガスバリヤ性樹脂フ
ィルムがポリエチレンテレフタレートフィルムからなる
請求項7に記載の有機エレクトロルミネッセンス用封止
用フィルム。
8. The film for sealing organic electroluminescence according to claim 7, wherein the first and / or second gas barrier resin film comprises a polyethylene terephthalate film.
【請求項9】吸湿性樹脂フィルムがエチレン−ビニルア
ルコール共重合体樹脂フィルムからなる請求項7に記載
の有機エレクトロルミネッセンス用封止用フィルム。
9. The sealing film for organic electroluminescence according to claim 7, wherein the hygroscopic resin film comprises an ethylene-vinyl alcohol copolymer resin film.
【請求項10】吸湿剤がアルカリ土類金属酸化物である
請求項7に記載の有機エレクトロルミネッセンス用封止
用フィルム。
10. The sealing film for organic electroluminescence according to claim 7, wherein the hygroscopic agent is an alkaline earth metal oxide.
【請求項11】吸湿剤がシリカゲル又はアルミナである
請求項7に記載の有機エレクトロルミネッセンス用封止
用フィルム。
11. The sealing film for organic electroluminescence according to claim 7, wherein the hygroscopic agent is silica gel or alumina.
【請求項12】接着剤が光硬化性樹脂接着剤である請求
項7に記載の有機エレクトロルミネッセンス用封止用フ
ィルム。
12. The film for sealing organic electroluminescence according to claim 7, wherein the adhesive is a photocurable resin adhesive.
【請求項13】請求項1から12のいずれかに記載のフ
ィルムにて有機エレクトロルミネッセンス素子を基板上
に密封、接着してなる封止有機エレクトロルミネッセン
ス素子。
13. A sealed organic electroluminescent device comprising a film according to any one of claims 1 to 12, wherein the organic electroluminescent device is sealed and adhered on a substrate.
JP2001052871A 2001-02-27 2001-02-27 Electroluminescence element sealing film and sealed organic electroluminescence element Pending JP2002260847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001052871A JP2002260847A (en) 2001-02-27 2001-02-27 Electroluminescence element sealing film and sealed organic electroluminescence element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001052871A JP2002260847A (en) 2001-02-27 2001-02-27 Electroluminescence element sealing film and sealed organic electroluminescence element

Publications (1)

Publication Number Publication Date
JP2002260847A true JP2002260847A (en) 2002-09-13

Family

ID=18913432

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001052871A Pending JP2002260847A (en) 2001-02-27 2001-02-27 Electroluminescence element sealing film and sealed organic electroluminescence element

Country Status (1)

Country Link
JP (1) JP2002260847A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003257666A (en) * 2002-03-06 2003-09-12 Dainippon Printing Co Ltd Organic el display
JP2005150100A (en) * 2003-10-20 2005-06-09 Hitachi Displays Ltd Organic el display device
JP2007005107A (en) * 2005-06-23 2007-01-11 Tohoku Pioneer Corp Light-emitting panel and method for manufacturing the same
US7446473B2 (en) 2004-06-02 2008-11-04 Hitachi Displays, Ltd. Organic electroluminescence display device
JP2009070798A (en) * 2007-08-21 2009-04-02 Fujifilm Corp Display element
JP2009081122A (en) * 2007-09-06 2009-04-16 Fujifilm Corp Method of manufacturing organic el device sealed with gas barrier film and organic el device sealed with gas barrier film
JP2009123690A (en) * 2007-10-22 2009-06-04 Konica Minolta Holdings Inc Organic electronics element winding to past drying agent film after forming coated layer or after forming coupled electrode layer and its manufacturing method
DE102009036970A1 (en) 2009-08-12 2011-02-17 Tesa Se Method for encapsulating an electronic device
WO2012019909A1 (en) 2010-08-13 2012-02-16 Tesa Se Method for encapsulating an electronic arrangement
WO2012060621A3 (en) * 2010-11-02 2012-07-05 주식회사 엘지화학 Adhesive film and method for encapsulating organic electronic device using the same
WO2014021697A1 (en) * 2012-08-03 2014-02-06 주식회사 엘지화학 Adhesive film and sealing product for organic electronic device using same
JP2014123579A (en) * 2005-11-02 2014-07-03 Ifire Ip Corp Electroluminescent display
US8786186B2 (en) 2011-06-10 2014-07-22 Samsung Display Co., Ltd. Organic light emitting diode display with adhesive layer
JP2015505422A (en) * 2012-01-06 2015-02-19 エルジー・ケム・リミテッド Sealing film
KR20150080864A (en) * 2014-01-02 2015-07-10 삼성디스플레이 주식회사 A flexible organic light emitting display device and the manufacturing method thereof
JP2015530702A (en) * 2012-08-03 2015-10-15 エルジー・ケム・リミテッド Adhesive film and organic electronic device sealing method using the same
JP2015530701A (en) * 2012-08-03 2015-10-15 エルジー・ケム・リミテッド Adhesive film and organic electronic device sealing product using the same
US9257673B2 (en) 2011-06-10 2016-02-09 Samsung Display Co., Ltd. Organic light emitting diode display
JP2016520247A (en) * 2013-05-21 2016-07-11 エルジー・ケム・リミテッド Sealing film and organic electronic device sealing method using the same
JP2016207661A (en) * 2009-08-05 2016-12-08 味の素株式会社 Film
JP2017535824A (en) * 2014-10-22 2017-11-30 京東方科技集團股▲ふん▼有限公司Boe Technology Group Co.,Ltd. Array substrate and manufacturing method thereof, flexible display panel and display device
CN107925010A (en) * 2015-08-17 2018-04-17 3M创新有限公司 Barrier film constructs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0298091A (en) * 1988-10-04 1990-04-10 Seikosha Co Ltd Electroluminescent device
JPH0785967A (en) * 1993-09-20 1995-03-31 Toyobo Co Ltd Electroluminescent panel
JPH07153570A (en) * 1993-11-26 1995-06-16 Seikosha Co Ltd El element
JPH0872188A (en) * 1994-09-02 1996-03-19 Kuraray Co Ltd Multilayer structure and utility thereof
JPH11162634A (en) * 1997-11-27 1999-06-18 Matsushita Electric Ind Co Ltd Electroluminescent device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0298091A (en) * 1988-10-04 1990-04-10 Seikosha Co Ltd Electroluminescent device
JPH0785967A (en) * 1993-09-20 1995-03-31 Toyobo Co Ltd Electroluminescent panel
JPH07153570A (en) * 1993-11-26 1995-06-16 Seikosha Co Ltd El element
JPH0872188A (en) * 1994-09-02 1996-03-19 Kuraray Co Ltd Multilayer structure and utility thereof
JPH11162634A (en) * 1997-11-27 1999-06-18 Matsushita Electric Ind Co Ltd Electroluminescent device

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003257666A (en) * 2002-03-06 2003-09-12 Dainippon Printing Co Ltd Organic el display
JP2005150100A (en) * 2003-10-20 2005-06-09 Hitachi Displays Ltd Organic el display device
US7608997B2 (en) * 2003-10-20 2009-10-27 Hitachi Displays, Ltd. Organic EL display device having improved desiccant arrangement
US7446473B2 (en) 2004-06-02 2008-11-04 Hitachi Displays, Ltd. Organic electroluminescence display device
JP2007005107A (en) * 2005-06-23 2007-01-11 Tohoku Pioneer Corp Light-emitting panel and method for manufacturing the same
JP2014123579A (en) * 2005-11-02 2014-07-03 Ifire Ip Corp Electroluminescent display
JP2009070798A (en) * 2007-08-21 2009-04-02 Fujifilm Corp Display element
JP2009081122A (en) * 2007-09-06 2009-04-16 Fujifilm Corp Method of manufacturing organic el device sealed with gas barrier film and organic el device sealed with gas barrier film
JP2009123690A (en) * 2007-10-22 2009-06-04 Konica Minolta Holdings Inc Organic electronics element winding to past drying agent film after forming coated layer or after forming coupled electrode layer and its manufacturing method
JP2016207661A (en) * 2009-08-05 2016-12-08 味の素株式会社 Film
WO2011018358A1 (en) 2009-08-12 2011-02-17 Tesa Se Method for encapsulating an electronic arrangement
DE102009036970A1 (en) 2009-08-12 2011-02-17 Tesa Se Method for encapsulating an electronic device
US8771459B2 (en) 2009-08-12 2014-07-08 Tesa Se Method of encapsulating an electronic arrangement
WO2012019909A1 (en) 2010-08-13 2012-02-16 Tesa Se Method for encapsulating an electronic arrangement
US9105648B2 (en) 2010-11-02 2015-08-11 Lg Chem, Ltd. Adhesive and method of encapsulating organic electronic device using the same
US10062855B2 (en) 2010-11-02 2018-08-28 Lg Chem, Ltd. Adhesive and method of encapsulating organic electronic device using the same
US8742411B2 (en) 2010-11-02 2014-06-03 Lg Chem, Ltd. Adhesive film and method of encapsulating organic electrode device using the same
WO2012060621A3 (en) * 2010-11-02 2012-07-05 주식회사 엘지화학 Adhesive film and method for encapsulating organic electronic device using the same
KR101293803B1 (en) 2010-11-02 2013-08-06 주식회사 엘지화학 Adhesive Film and Encapsulation Method of Organic Electronic Device Using the Same
US11142669B2 (en) 2010-11-02 2021-10-12 Lg Chem, Ltd. Adhesive and method of encapsulating organic electronic device using the same
US10622573B2 (en) 2010-11-02 2020-04-14 Lg Chem, Ltd. Adhesive and method of encapsulating organic electronic device using the same
US10636971B2 (en) 2011-06-10 2020-04-28 Samsung Display Co., Ltd. Organic light emitting diode display
US11349077B2 (en) 2011-06-10 2022-05-31 Samsung Display Co., Ltd. Organic light emitting diode display
US10461255B2 (en) 2011-06-10 2019-10-29 Samsung Display Co., Ltd. Organic light emitting diode display
US8786186B2 (en) 2011-06-10 2014-07-22 Samsung Display Co., Ltd. Organic light emitting diode display with adhesive layer
US9806261B2 (en) 2011-06-10 2017-10-31 Samsung Display Co., Ltd. Organic light emitting diode display
US9257673B2 (en) 2011-06-10 2016-02-09 Samsung Display Co., Ltd. Organic light emitting diode display
US11600778B2 (en) 2011-06-10 2023-03-07 Samsung Display Co., Ltd. Organic light emitting diode display
US9698378B2 (en) 2012-01-06 2017-07-04 Lg Chem, Ltd. Encapsulation film
JP2015512138A (en) * 2012-01-06 2015-04-23 エルジー・ケム・リミテッド Manufacturing method of electronic device
US9698379B2 (en) 2012-01-06 2017-07-04 Lg Chem, Ltd. Encapsulation film
JP2015505422A (en) * 2012-01-06 2015-02-19 エルジー・ケム・リミテッド Sealing film
JP2015509864A (en) * 2012-01-06 2015-04-02 エルジー・ケム・リミテッド Sealing film
US10141543B2 (en) 2012-01-06 2018-11-27 Lg Chem, Ltd. Method for manufacturing electronic device
WO2014021697A1 (en) * 2012-08-03 2014-02-06 주식회사 엘지화학 Adhesive film and sealing product for organic electronic device using same
JP2015530701A (en) * 2012-08-03 2015-10-15 エルジー・ケム・リミテッド Adhesive film and organic electronic device sealing product using the same
US10093785B2 (en) 2012-08-03 2018-10-09 Lg Chem, Ltd. Adhesive film and sealing product for organic electronic device using same
JP2015530702A (en) * 2012-08-03 2015-10-15 エルジー・ケム・リミテッド Adhesive film and organic electronic device sealing method using the same
US10626245B2 (en) 2012-08-03 2020-04-21 Lg Chem, Ltd. Adhesive film and sealing product for organic electronic device using same
JP2016520247A (en) * 2013-05-21 2016-07-11 エルジー・ケム・リミテッド Sealing film and organic electronic device sealing method using the same
KR102147844B1 (en) 2014-01-02 2020-08-26 삼성디스플레이 주식회사 A flexible organic light emitting display device and the manufacturing method thereof
KR20150080864A (en) * 2014-01-02 2015-07-10 삼성디스플레이 주식회사 A flexible organic light emitting display device and the manufacturing method thereof
US9246132B2 (en) 2014-01-02 2016-01-26 Samsung Display Co., Ltd. Flexible organic light-emitting display apparatus and method of manufacturing the same
JP2017535824A (en) * 2014-10-22 2017-11-30 京東方科技集團股▲ふん▼有限公司Boe Technology Group Co.,Ltd. Array substrate and manufacturing method thereof, flexible display panel and display device
CN107925010A (en) * 2015-08-17 2018-04-17 3M创新有限公司 Barrier film constructs

Similar Documents

Publication Publication Date Title
JP2002260847A (en) Electroluminescence element sealing film and sealed organic electroluminescence element
TWI304706B (en)
JPH05182759A (en) Organic el element
JP2000003783A (en) Organic electroluminescent display device
JP2001176655A (en) Organic electroluminescent element
JP4112779B2 (en) Manufacturing method of organic EL element
JPH09148066A (en) Organic electroluminescent element
JP2002208478A (en) Electroluminescent element
JP2000100558A (en) Luminescent device
JP2006228519A (en) Organic electroluminescent element and its manufacturing method
JP2001057287A (en) Organic el element
KR20150086093A (en) Organic light emitting diode display and method for manufacturing the same
JP2003007454A (en) Manufacturing method of organic electric field luminescence display element, and organic electric field luminescence display element
JP4246830B2 (en) Organic EL device
JP2000100562A (en) Organic el element and its manufacture
JPH11121165A (en) Organic electrouminescent element
JP3411864B2 (en) Organic EL display
US7109654B2 (en) Electroluminescence device
JP2002252089A (en) Both-face light emission type organic electroluminescence element
JP2000100560A (en) Light emitting device
JPH11176571A (en) Manufacture of organic el element
JP2002208476A (en) Organic light emission element
JP2000100559A (en) Luminescent device
JP2000100561A (en) Organic electroluminescent element
KR200257245Y1 (en) Organic Electroluminescence Display Device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080220

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100629

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100629

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20101207