JP2003297552A - Organic electroluminescence display panel - Google Patents

Organic electroluminescence display panel

Info

Publication number
JP2003297552A
JP2003297552A JP2002094881A JP2002094881A JP2003297552A JP 2003297552 A JP2003297552 A JP 2003297552A JP 2002094881 A JP2002094881 A JP 2002094881A JP 2002094881 A JP2002094881 A JP 2002094881A JP 2003297552 A JP2003297552 A JP 2003297552A
Authority
JP
Japan
Prior art keywords
organic
display panel
organic electroluminescence
sealing
film
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
JP2002094881A
Other languages
Japanese (ja)
Inventor
Toshiyuki Miyadera
敏之 宮寺
Tatsuya Yoshizawa
達矢 吉澤
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP2002094881A priority Critical patent/JP2003297552A/en
Priority to PCT/JP2003/003313 priority patent/WO2003084290A1/en
Priority to EP20030712755 priority patent/EP1492387A1/en
Priority to US10/509,079 priority patent/US20050156519A1/en
Priority to CNA038072645A priority patent/CN1643989A/en
Priority to AU2003221089A priority patent/AU2003221089A1/en
Priority to KR10-2004-7015179A priority patent/KR20040102054A/en
Priority to TW092106205A priority patent/TW594619B/en
Publication of JP2003297552A publication Critical patent/JP2003297552A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/87Passivation; Containers; Encapsulations
    • H10K59/873Encapsulations
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/87Passivation; Containers; Encapsulations
    • H10K59/871Self-supporting sealing arrangements
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80Constructional details
    • H10K59/87Passivation; Containers; Encapsulations
    • H10K59/874Passivation; Containers; Encapsulations including getter material or desiccant

Abstract

<P>PROBLEM TO BE SOLVED: To provide an organic electroluminescence element and an organic electroluminescence display panel of which the light-emitting characteristics are hardly deteriorated by moisture. <P>SOLUTION: This is an organic electroluminescence display panel which is made of one or more of organic electroluminescence elements that are constructed of a first display electrode, one or more of organic functional layers containing a luminous layer made of an organic compound, and a second display electrode laminated in order, a resin material-contained membrane that carries the organic electroluminescence element and contains a resin material on the surface on the side facing the organic electroluminescence element, and a support substrate that carries the resin material-contained membrane. In the display panel, a sealing region for sealing the side end of the resin material-contained membrane is provided. <P>COPYRIGHT: (C)2004,JPO

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、電流の注入によっ
て発光するエレクトロルミネッセンスを呈する有機化合
物材料からなる発光層を含む1以上の薄膜(以下、有機
機能層という)を備えた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)に関し、特に、基材
が樹脂から構成されたり、又は基材は無機物であっても
その有機EL素子に面する表面に少なくとも樹脂材料を
含有する層や膜を備えた支持基板上に1以上の有機EL
素子が形成された有機エレクトロルミネッセンス表示パ
ネル(以下、有機EL表示パネルという)に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electroluminescent element (one or more thin films (hereinafter referred to as an organic functional layer)) including a light emitting layer made of an organic compound material exhibiting electroluminescence which emits light when an electric current is injected. Hereinafter, referred to as an “organic EL element”), in particular, even if the base material is made of resin or the base material is an inorganic material, the surface facing the organic EL element is provided with a layer or film containing at least a resin material. One or more organic ELs on the support substrate
The present invention relates to an organic electroluminescence display panel (hereinafter referred to as an organic EL display panel) on which elements are formed.

【0002】[0002]

【従来の技術】有機EL素子は、基本的には有機機能層
を陽極及び陰極で挟んだ形態で、両電極から注入された
電子と正孔が再結合時に形成される励起子が励起状態か
ら基底状態に戻り光を生じさせる。例えば、透明基板上
に、陽極の透明電極と、有機機能層と、陰極の金属電極
とが順次積層して有機EL素子は構成され、透明基板側
から発光を得る。有機機能層は、発光層の単一層、ある
いは有機正孔輸送層、発光層及び有機電子輸送層の3層
構造、又は有機正孔輸送層及び発光層の2層構造、さら
にこれらの適切な層間に電子或いは正孔の注入層やキャ
リアブロック層を挿入した積層体である。
2. Description of the Related Art An organic EL device basically has a structure in which an organic functional layer is sandwiched between an anode and a cathode, and excitons formed when electrons and holes injected from both electrodes are recombined from an excited state. Light is returned to the ground state. For example, an organic EL element is formed by sequentially stacking a transparent electrode of an anode, an organic functional layer, and a metal electrode of a cathode on a transparent substrate, and light is emitted from the transparent substrate side. The organic functional layer may be a single layer of a light emitting layer, a three-layer structure of an organic hole transport layer, a light emitting layer and an organic electron transport layer, or a two layer structure of an organic hole transport layer and a light emitting layer, and an appropriate interlayer between them. It is a laminate in which an electron or hole injection layer or a carrier block layer is inserted.

【0003】有機EL表示パネルとして、例えばマトリ
クス表示タイプのものや、所定発光パターンを有するも
のが知られている。また、複数の発光色(例えば、赤、
青、緑)の発光部分を平面に配置する有機EL表示パネ
ルの多色化の提案もなされている。多色化方法として
は、特定発光色ごとに有機材料を選択して有機EL素子
をそれぞれ構成する方法に加え、有機EL素子と色変換
膜を張り合わせて、有機EL素子からの所定色発光を色
変換膜が受光して、色変換膜がそれぞれ異なる色の発光
させる方法がある。色変換膜には、例えばカラーフィル
タや、色変換層いわゆるCCM(Color Chan
ging Method)層がある。色変換層は所定基
材表面上に所定蛍光材料部を配置させその上に樹脂材料
(樹脂膜)を被覆して形成される。樹脂膜はオーバーコ
ート膜として有機EL素子形成用の平坦化及び保護膜の
ために設けられている。いずれの色変換膜を備えた基板
(色変換基板)も、有機EL素子に面する側の表面に樹
脂材料を含むが、支持基板として用いられ得る。
Known organic EL display panels include, for example, those of matrix display type and those having a predetermined light emission pattern. In addition, multiple emission colors (for example, red,
Proposals have been made for multicoloring of an organic EL display panel in which light emitting portions of blue and green are arranged on a plane. As a multicoloring method, in addition to a method of forming an organic EL element by selecting an organic material for each specific emission color, an organic EL element and a color conversion film are attached to each other to emit light of a predetermined color from the organic EL element. There is a method in which the conversion film receives light and the color conversion films emit different colors. The color conversion film includes, for example, a color filter and a color conversion layer so-called CCM (Color Chan).
Ging Method) layer. The color conversion layer is formed by disposing a predetermined fluorescent material portion on the surface of a predetermined base material and coating a resin material (resin film) on the predetermined fluorescent material portion. The resin film is provided as an overcoat film for flattening and protecting the organic EL device. A substrate provided with any color conversion film (color conversion substrate) contains a resin material on the surface facing the organic EL element, but can be used as a support substrate.

【0004】[0004]

【発明が解決しようとする課題】有機EL表示パネルで
は、有機EL素子の支持基板における樹脂材料を含む層
いわゆる樹脂材料含有膜の端面の全部あるいは一部が外
気と接触可能な構造となる場合がある。しかしながら、
有機EL素子は、一般に大気に晒されるなど、水分、酸
素などのガス、その他の使用環境中のある種の分子の影
響を受けて劣化し易い、特に基板に設けられた樹脂材料
を含む層例えば色変換基板、絶縁層、平滑化層などの端
面では外気に晒され、そこから水分や酸素が侵入して有
機EL素子にダメージを与えてしまう問題がある。
In an organic EL display panel, a layer containing a resin material in a supporting substrate of an organic EL element, a so-called resin material-containing film, may have a structure in which all or part of the end surface is in contact with outside air. is there. However,
An organic EL element is liable to be deteriorated under the influence of moisture, a gas such as oxygen, or some kind of molecules in the environment of use, such as being exposed to the atmosphere, and in particular, a layer including a resin material provided on a substrate, for example. The end faces of the color conversion substrate, the insulating layer, the smoothing layer, and the like are exposed to the outside air, and there is a problem that moisture and oxygen enter from there and damage the organic EL element.

【0005】[0005]

【発明が解決しようとする課題】そこで、本発明は、水
分などによる発光特性が劣化しにくい有機EL素子及び
有機EL表示パネルを提供することを目的とする。
SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an organic EL element and an organic EL display panel in which the light emission characteristics are less likely to deteriorate due to moisture or the like.

【0006】[0006]

【課題を解決するための手段】本発明の有機エレクトロ
ルミネッセンス表示パネルは、順に積層された、第1表
示電極、有機化合物からなる発光層を含む1以上の有機
機能層、及び第2表示電極、からなる1以上の有機エレ
クトロルミネッセンス素子と、前記有機エレクトロルミ
ネッセンス素子を担持しかつ前記有機エレクトロルミネ
ッセンス素子に面する側の表面に樹脂材料を含む樹脂材
料含有膜と、前記樹脂材料含有膜を担持する支持基板か
らなる有機エレクトロルミネッセンス表示パネルであっ
て、前記樹脂材料含有膜の端面を封止する封止領域が設
けられていることを特徴とする。
An organic electroluminescence display panel of the present invention comprises a first display electrode, one or more organic functional layers including a light emitting layer made of an organic compound, and a second display electrode, which are sequentially stacked. One or more organic electroluminescent elements each consisting of, a resin material-containing film containing a resin material and a resin material-containing film containing a resin material on the surface that supports the organic electroluminescent elements and faces the organic electroluminescent element. An organic electroluminescence display panel comprising a supporting substrate, characterized in that a sealing region for sealing an end face of the resin material-containing film is provided.

【0007】本発明の有機エレクトロルミネッセンス表
示パネルにおいては、前記封止領域は、前記支持基板に
固定されかつ前記有機エレクトロルミネッセンス素子全
体を背面から覆う封止缶と、前記封止缶内部に充填され
る不活性材料と、を含むことを特徴とする。本発明の有
機エレクトロルミネッセンス表示パネルにおいては、前
記封止缶はその内壁にガス捕捉剤を備えたことを特徴と
する。
In the organic electroluminescence display panel of the present invention, the sealing region is fixed to the supporting substrate and covers the entire organic electroluminescence element from the back surface, and the sealing can is filled inside the sealing can. And an inert material. In the organic electroluminescence display panel of the present invention, the sealing can has a gas scavenger on its inner wall.

【0008】本発明の有機エレクトロルミネッセンス表
示パネルにおいては、前記封止領域は、前記有機エレク
トロルミネッセンス素子に接触して全体を背面から覆う
封止膜を含むことを特徴とする。本発明の有機エレクト
ロルミネッセンス表示パネルにおいては、前記封止膜は
無機パッシベーション膜であり、前記有機エレクトロル
ミネッセンス素子全体は前記支持基板及び前記封止膜に
より気密的に覆われていることを特徴とする。
In the organic electroluminescent display panel of the present invention, the sealing region includes a sealing film which is in contact with the organic electroluminescent element and covers the entire surface from the back surface. In the organic electroluminescence display panel of the present invention, the sealing film is an inorganic passivation film, and the entire organic electroluminescence element is hermetically covered with the supporting substrate and the sealing film. .

【0009】本発明の有機エレクトロルミネッセンス表
示パネルにおいては、前記支持基板は樹脂からなり、少
なくとも前記有機エレクトロルミネッセンス素子及び前
記支持基板の間に、前記支持基板の表面を覆う無機バリ
ア膜を有することを特徴とする。本発明の有機エレクト
ロルミネッセンス表示パネルにおいては、前記支持基板
における、前記有機エレクトロルミネッセンス素子に接
触する表面の裏側の表面を覆う第2の無機バリア膜を含
むことを特徴とする。
In the organic electroluminescence display panel of the present invention, the supporting substrate is made of a resin, and an inorganic barrier film covering the surface of the supporting substrate is provided between at least the organic electroluminescent element and the supporting substrate. Characterize. The organic electroluminescence display panel of the present invention is characterized by including a second inorganic barrier film covering a surface of the support substrate on the back side of the surface in contact with the organic electroluminescence element.

【0010】本発明の有機エレクトロルミネッセンス表
示パネルにおいては、前記無機バリア膜は窒化酸化シリ
コンからなることを特徴とする。本発明の有機エレクト
ロルミネッセンス表示パネルにおいては、前記無機バリ
ア膜はスパッタ法により成膜されたことを特徴とする。
本発明の有機エレクトロルミネッセンス表示パネルにお
いては、前記樹脂材料含有膜は、色変換膜を備えること
を特徴とする。
In the organic electroluminescence display panel of the present invention, the inorganic barrier film is made of silicon oxynitride. In the organic electroluminescence display panel of the present invention, the inorganic barrier film is formed by a sputtering method.
In the organic electroluminescence display panel of the present invention, the resin material-containing film is provided with a color conversion film.

【0011】[0011]

【発明の実施の形態】以下に、本発明による実施の形態
例を図面を参照しつつ説明する。図1に示すように、実
施形態の有機EL素子は、ガラス支持基板10上に形成
された樹脂バインダを含むカラーフィルタ9上に形成さ
れている。有機EL素子は、カラーフィルタ9上に、第
1表示電極13(透明電極の陽極)、有機化合物からな
る発光層を含む1以上の有機機能層14、及び第2表示
電極15(金属電極の陰極)が順に積層されてなる。ま
た、有機EL素子は、支持基板10に対して接着剤によ
り固定され、基板とともに有機EL素子を封止するガス
捕捉剤16aを内壁に備えたガス不透過性の封止缶16
を備えている。封止缶16の内部空間に例えば乾燥窒素
(N2)などの不活性材料が封入される。この際、カラ
ーフィルタはガラス基板と封止缶、不活性材料及びその
接合部によって囲まれた封止領域9bにより外部に露出
することなく構成される。この封止領域9bにより、カ
ラーフィルタ9の端面9aからの水分などの素子への侵
入が阻止される。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the organic EL element of the embodiment is formed on a color filter 9 including a resin binder formed on a glass supporting substrate 10. The organic EL device includes a first display electrode 13 (a transparent electrode anode), one or more organic functional layers 14 including a light emitting layer made of an organic compound, and a second display electrode 15 (a metal electrode cathode) on a color filter 9. ) Are sequentially laminated. Further, the organic EL element is fixed to the supporting substrate 10 with an adhesive, and a gas impermeable sealing can 16 having an inner wall with a gas capturing agent 16a for sealing the organic EL element together with the substrate is provided.
Is equipped with. An inert material such as dry nitrogen (N 2 ) is enclosed in the inner space of the sealing can 16. At this time, the color filter is constituted by the glass substrate, the sealing can, the sealing region 9b surrounded by the inert material and the joint thereof without being exposed to the outside. The sealing region 9b prevents moisture or the like from entering the device from the end surface 9a of the color filter 9.

【0012】例えば、カラーフィルタ上の有機EL素子
の各々は、支持基板10上にインジウム錫酸化物(IT
O)からなる透明電極(第1表示電極)13をイオンプ
レーティング法又はスパッタ法により成膜する。その上
に、銅フタロシアニンからなる正孔注入層、TPD(ト
リフェニルアミン誘導体)からなる正孔輸送層、Alq
3(アルミキレート錯体)からなる発光層、Li2O(酸
化リチウム)からなる電子注入層を順次、蒸着して有機
機能層14を形成する。さらに、この上に蒸着によっ
て、Alからなる金属電極(第2表示電極)15を透明
電極13の電極パターンと対向するように成膜する。
For example, each of the organic EL elements on the color filter has an indium tin oxide (IT) formed on the support substrate 10.
A transparent electrode (first display electrode) 13 made of O) is formed by an ion plating method or a sputtering method. In addition, a hole injection layer made of copper phthalocyanine, a hole transport layer made of TPD (triphenylamine derivative), Alq
A light emitting layer made of 3 (aluminum chelate complex) and an electron injection layer made of Li 2 O (lithium oxide) are sequentially deposited to form the organic functional layer 14. Further, a metal electrode (second display electrode) 15 made of Al is formed thereon by vapor deposition so as to face the electrode pattern of the transparent electrode 13.

【0013】図2に示す第2の実施形態は、支持基板1
0を樹脂製としてその有機EL素子側表面上に、例えば
窒化酸化シリコンからなる防湿性を有する無機バリア膜
12が形成されている以外、上記の第1の実施形態と同
じである。無機バリア膜の窒化酸化シリコンは、防湿性
を維持するために、窒素/酸素の比率が0.13〜2.
88であることが好ましい。これ以上であると、膜の残
留応力が高くなり、以下であると有機EL素子の有機機
能層への水分など侵入を十分防げなくなる。無機バリア
膜に覆われた支持基板10の表面は、少なくとも有機E
L素子に接触する表面、有機EL素子間の表面、有機E
L素子周囲の表面、有機EL素子に接触する表面の裏側
の表面を含むことが好ましい。水分などの有機機能層へ
の侵入を防止するためである。また、支持基板10にお
いて有機EL素子に接触する表面の裏側の表面を覆う第
2の無機バリア膜を備えてもよい。支持基板10の両面
を無機バリア膜で覆うことにより、支持基板10の反り
を防止できる。
The second embodiment shown in FIG. 2 is a support substrate 1
This is the same as the first embodiment, except that 0 is made of resin and the moisture-proof inorganic barrier film 12 made of, for example, silicon oxynitride is formed on the surface of the organic EL element side. The silicon nitride oxide of the inorganic barrier film has a nitrogen / oxygen ratio of 0.13 to 2.
It is preferably 88. If it is more than this, the residual stress of the film becomes high, and if it is less than this, it is not possible to sufficiently prevent intrusion of water or the like into the organic functional layer of the organic EL element. The surface of the support substrate 10 covered with the inorganic barrier film is at least organic E
Surface in contact with L element, surface between organic EL elements, organic E
It is preferable to include the surface around the L element and the surface on the back side of the surface in contact with the organic EL element. This is to prevent moisture or the like from entering the organic functional layer. In addition, a second inorganic barrier film that covers the surface on the back side of the surface of the supporting substrate 10 that contacts the organic EL element may be provided. Warping of the support substrate 10 can be prevented by covering both surfaces of the support substrate 10 with an inorganic barrier film.

【0014】図3に示す第3の実施形態は、ガス捕捉剤
付きの封止缶を、有機EL素子全体に密着して包み込む
封止膜26に換えた以外は、第1の実施形態と同じであ
る。端面9a周囲の封止膜26の封止領域9bにより、
カラーフィルタ9の端面9aからの水分などの素子への
侵入が阻止される。有機EL素子の背面から覆う封止膜
26は無機パッシベーション膜である。また、樹脂から
なる封止膜を当該無機パッシベーション膜上に設け多層
化してもよい。また、樹脂封止膜最表面上に無機物から
なる無機パッシベーション膜を再度設けることもでき
る。無機パッシベーション膜は上記の窒化酸化シリコ
ン、窒化シリコンなどの窒化物、或いは酸化物又は炭素
などの無機物からなる。封止膜を構成する樹脂として
は、フッ素系やシリコン系の樹脂、フォトレジスト、ポ
リイミドなど合成樹脂が用いられる。
The third embodiment shown in FIG. 3 is the same as the first embodiment except that a sealing can with a gas scavenger is replaced with a sealing film 26 that closely adheres to and envelops the entire organic EL device. Is. By the sealing region 9b of the sealing film 26 around the end surface 9a,
The entry of moisture or the like from the end surface 9a of the color filter 9 into the element is prevented. The sealing film 26 covering the back surface of the organic EL element is an inorganic passivation film. Moreover, a sealing film made of resin may be provided on the inorganic passivation film to form a multilayer structure. Further, an inorganic passivation film made of an inorganic material can be provided again on the outermost surface of the resin sealing film. The inorganic passivation film is made of the above-mentioned silicon nitride oxide, nitride such as silicon nitride, or inorganic material such as oxide or carbon. As the resin forming the sealing film, a fluorine-based or silicon-based resin, a photoresist, a synthetic resin such as polyimide, or the like is used.

【0015】図4に示す第4の実施形態では、ガス捕捉
剤付きの封止缶を、素子全体に密着して包み込む封止膜
26に換えた以外は、第2の実施形態と同じである。い
ずれの実施形態中における樹脂バインダを含むカラーフ
ィルタは、樹脂材料を含む他の層(色変換層、絶縁層、
平滑化層など)であってもよく、あるいはそれらの積層
体であってもよい。封止剤を除き、素子を構成する樹脂
材料を含む全ての層が外気に曝されないような構造とす
る。
The fourth embodiment shown in FIG. 4 is the same as the second embodiment except that the sealing can with a gas scavenger is replaced with a sealing film 26 that closely adheres to and envelops the entire device. . The color filter including the resin binder in any of the embodiments includes other layers including a resin material (color conversion layer, insulating layer,
Smoothing layer) or a laminate thereof. Except for the encapsulant, all layers including the resin material forming the element are not exposed to the outside air.

【0016】無機材料に比して格段にガス透過度の大き
な有機材料を用いた層すなわち樹脂材料含有膜を封止構
造内部に閉じ込め、外部に露出させないように構成した
ので、外部からの酸素、水蒸気の進入に伴う素子の劣化
を極力抑えることが可能となる。なお、有機封止剤を用
いない膜封止構造の場合、ガス補足剤を取り去っても良
好な素子保存性を確保することができる。
Since a layer made of an organic material having a significantly higher gas permeability than an inorganic material, that is, a resin material-containing film is confined inside the sealing structure and is not exposed to the outside, oxygen from the outside, It is possible to suppress deterioration of the element due to the entry of water vapor as much as possible. In the case of a film sealing structure that does not use an organic sealing agent, good device storability can be secured even if the gas scavenger is removed.

【0017】本発明に用いられる支持基板の基材は、可
視領域の光の透過率が50%以上で、平滑な基板が好ま
しい。具体的には、ガラス板、高分子化合物板等が挙げ
られる。ガラス板としては、特にソーダ石灰ガラス、バ
リウム・ストロンチウム含有ガラス、鉛ガラス、アルミ
ノケイ酸ガラス、ホウケイ酸ガラス、バリウムホウケイ
酸ガラス、石英などである。また、高分子化合物板とし
ては、ポリカーボネート、アクリル、ポリエチレンテレ
フタレート、ポリエーテルサルファイド、ポリサルフォ
ンなどである。
The base material of the supporting substrate used in the present invention is preferably a smooth substrate having a light transmittance of 50% or more in the visible region. Specific examples include a glass plate and a polymer compound plate. Examples of the glass plate include soda-lime glass, barium-strontium-containing glass, lead glass, aluminosilicate glass, borosilicate glass, barium borosilicate glass, and quartz. The polymer compound plate is polycarbonate, acrylic, polyethylene terephthalate, polyether sulfide, polysulfone, or the like.

【0018】図5は他の実施形態の、複数の有機EL素
子を備えた有機EL表示パネルの部分拡大背面図であ
る。有機EL表示パネルは、図に示すように、封止膜2
6で全体が被覆され支持基板10上にマトリクス状に配
置された複数の有機EL素子を備えている。透明電極層
を含む行電極13(陽極の第1表示電極)と、有機機能
層と、該行電極に交差する金属電極層を含む列電極15
(陰極の第2表示電極)と、が窒化酸化シリコン膜上に
順次積層されて構成されている。行電極は、各々が帯状
に形成されるとともに、所定の間隔をおいて互いに平行
となるように配列されており、列電極も同様である。こ
のように、マトリクス表示タイプの表示パネルは、複数
の行と列の電極の交差点に形成された複数の有機EL素
子の発光画素からなる画像表示配列を有している。第1
表示電極13は、島状の透明電極を水平方向に電気的に
接続する金属バスラインから構成できる。有機EL表示
パネルは支持基板10の窒化酸化シリコン膜上の有機E
L素子の間に設けられた複数の隔壁7を備えている。第
2表示電極15及び隔壁7の上には封止膜26が形成さ
れている。有機機能層材料を選択して適宜積層して各々
が赤R、緑G及び青Bの発光部を構成することもでき
る。
FIG. 5 is a partially enlarged rear view of an organic EL display panel having a plurality of organic EL elements according to another embodiment. The organic EL display panel has a sealing film 2 as shown in the figure.
A plurality of organic EL elements which are entirely covered with 6 and are arranged in a matrix on the supporting substrate 10 are provided. A row electrode 13 (first display electrode of the anode) including a transparent electrode layer, an organic functional layer, and a column electrode 15 including a metal electrode layer intersecting the row electrode 15
And (second display electrode of the cathode) are sequentially laminated on the silicon nitride oxide film. The row electrodes are each formed in a strip shape and are arranged so as to be parallel to each other at a predetermined interval, and the column electrodes are also the same. As described above, the matrix display type display panel has an image display array including light emitting pixels of a plurality of organic EL elements formed at intersections of a plurality of rows and columns of electrodes. First
The display electrode 13 can be composed of a metal bus line that electrically connects the island-shaped transparent electrodes in the horizontal direction. The organic EL display panel is an organic E on the silicon nitride oxide film of the support substrate 10.
A plurality of partition walls 7 are provided between the L elements. A sealing film 26 is formed on the second display electrodes 15 and the partition walls 7. The organic functional layer material may be selected and appropriately laminated to form the red R, green G, and blue B light emitting portions.

【0019】このパネルの有機EL素子の各々は、支持
基板10上に順に積層された、第1表示電極13、有機
化合物からなる発光層を含む1以上の有機機能層14、
及び第2表示電極15、からなる。隔壁7は、色変換基
板から突出するように有機EL素子の間に設けられてい
る。さらに、有機EL表示パネルは、有機EL素子と同
様に、隔壁7を背面から覆う封止膜26の一部として無
機パッシベーション膜や有機樹脂の封止膜の多層膜を設
けることができる。この樹脂封止膜最表面上に無機物か
らなる無機パッシベーション膜を再度設けることもでき
る。
Each of the organic EL elements of this panel has a first display electrode 13, one or more organic functional layers 14 including a light emitting layer made of an organic compound, which are sequentially stacked on a supporting substrate 10.
And the second display electrode 15. The partition 7 is provided between the organic EL elements so as to project from the color conversion substrate. Further, in the organic EL display panel, similarly to the organic EL element, a multilayer film of an inorganic passivation film or an organic resin sealing film can be provided as a part of the sealing film 26 that covers the partition wall 7 from the back surface. An inorganic passivation film made of an inorganic material can be provided again on the outermost surface of the resin sealing film.

【0020】上述した例においては、水分などの遮断を
行なうための無機バリア膜製法として、スパッタ法を用
いたが、これに限られることはなく、プラズマCVD
(Chemical Vapor Depositio
n)法、真空蒸着法などの気相成長法も適用可能であ
る。
In the above-mentioned example, the sputtering method was used as the method of forming the inorganic barrier film for blocking moisture and the like, but the method is not limited to this, and plasma CVD is used.
(Chemical Vapor Deposition
n) method, a vapor deposition method such as a vacuum vapor deposition method can also be applied.

【0021】[0021]

【発明の効果】本発明によれば、樹脂材料を含有する支
持基板の樹脂表面すなわち樹脂材料含有膜の端面を囲み
外気から遮断する封止領域が設けたので、素子外部から
の酸素、水分などの侵入に伴う素子の劣化を抑制でき、
信頼性の高い有機EL素子及び有機ELディスプレイを
提供することができる。
According to the present invention, a sealing region is provided which surrounds the resin surface of the supporting substrate containing the resin material, that is, the end face of the resin material containing film, and shields it from the outside air. Can suppress the deterioration of the element due to the intrusion of
It is possible to provide a highly reliable organic EL element and organic EL display.

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

【図1】 本発明による実施形態の有機EL素子を示す
概略拡大断面図。
FIG. 1 is a schematic enlarged cross-sectional view showing an organic EL element of an embodiment according to the present invention.

【図2】 本発明による他の実施形態の有機EL素子を
示す概略拡大断面図。
FIG. 2 is a schematic enlarged cross-sectional view showing an organic EL element of another embodiment according to the present invention.

【図3】 本発明による他の実施形態の有機EL素子を
示す概略拡大断面図。
FIG. 3 is a schematic enlarged cross-sectional view showing an organic EL element of another embodiment according to the present invention.

【図4】 本発明による他の実施形態の有機EL素子を
示す概略拡大断面図。
FIG. 4 is a schematic enlarged cross-sectional view showing an organic EL element of another embodiment according to the present invention.

【図5】 本発明による他の実施形態の有機EL表示パ
ネルを示す概略拡大部分背面図。
FIG. 5 is a schematic enlarged partial rear view showing an organic EL display panel of another embodiment according to the present invention.

【符号の説明】[Explanation of symbols]

9 カラーフィルタ 9a 端面 9b 封止領域 10 支持基板 12 無機バリア膜 13 第1表示電極(透明電極の陽極) 14 有機機能層(発光層) 15 第2表示電極(金属電極の陰極) 16 封止缶 16a ガス捕捉剤 26 封止膜 9 color filters 9a end face 9b Sealing area 10 Support substrate 12 Inorganic barrier film 13 1st display electrode (anode of transparent electrode) 14 Organic functional layer (light emitting layer) 15 Second display electrode (cathode of metal electrode) 16 sealed cans 16a gas scavenger 26 Sealing film

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 3K007 AB04 AB11 AB12 AB13 BB01 BB04 BB05 BB06 DB03 FA01 FA02    ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3K007 AB04 AB11 AB12 AB13 BB01                       BB04 BB05 BB06 DB03 FA01                       FA02

Claims (10)

【特許請求の範囲】[Claims] 【請求項1】 順に積層された、第1表示電極、有機化
合物からなる発光層を含む1以上の有機機能層、及び第
2表示電極、からなる1以上の有機エレクトロルミネッ
センス素子と、前記有機エレクトロルミネッセンス素子
を担持しかつ前記有機エレクトロルミネッセンス素子に
面する側の表面に樹脂材料を含む樹脂材料含有膜と、前
記樹脂材料含有膜を担持する支持基板からなる有機エレ
クトロルミネッセンス表示パネルであって、前記樹脂材
料含有膜の端面を封止する封止領域が設けられているこ
とを特徴とする有機エレクトロルミネッセンス表示パネ
ル。
1. One or more organic electroluminescent elements each comprising a first display electrode, at least one organic functional layer including a light emitting layer made of an organic compound, and a second display electrode, which are sequentially stacked, and the organic electroluminescent element. A resin material-containing film containing a resin material on the surface of the side facing the organic electroluminescence element and carrying a luminescence element, and an organic electroluminescence display panel consisting of a supporting substrate carrying the resin material-containing film, An organic electroluminescence display panel comprising a sealing region for sealing an end face of a resin material-containing film.
【請求項2】 前記封止領域は、前記支持基板に固定さ
れかつ前記有機エレクトロルミネッセンス素子全体を背
面から覆う封止缶と、前記封止缶内部に充填される不活
性材料と、を含むことを特徴とする請求項1記載の有機
エレクトロルミネッセンス表示パネル。
2. The sealing region includes a sealing can that is fixed to the support substrate and covers the entire organic electroluminescent element from the back side, and an inert material filled in the sealing can. The organic electroluminescence display panel according to claim 1, wherein
【請求項3】 前記封止缶はその内壁にガス捕捉剤を備
えたことを特徴とする請求項2記載の有機エレクトロル
ミネッセンス表示パネル。
3. The organic electroluminescence display panel according to claim 2, wherein the sealing can has a gas scavenger on its inner wall.
【請求項4】 前記封止領域は、前記有機エレクトロル
ミネッセンス素子に接触して全体を背面から覆う封止膜
を含むことを特徴とする請求項1記載の有機エレクトロ
ルミネッセンス表示パネル。
4. The organic electroluminescent display panel according to claim 1, wherein the sealing region includes a sealing film that is in contact with the organic electroluminescent element and covers the entire surface from the back surface.
【請求項5】 前記封止膜は無機パッシベーション膜で
あり、前記有機エレクトロルミネッセンス素子全体は前
記支持基板及び前記封止膜により気密的に覆われている
ことを特徴とする請求項4記載の有機エレクトロルミネ
ッセンス表示パネル。
5. The organic material according to claim 4, wherein the sealing film is an inorganic passivation film, and the entire organic electroluminescence element is hermetically covered with the supporting substrate and the sealing film. Electroluminescence display panel.
【請求項6】 前記支持基板は樹脂からなり、少なくと
も前記有機エレクトロルミネッセンス素子及び前記支持
基板の間に、前記支持基板の表面を覆う無機バリア膜を
有することを特徴とする請求項1〜5のいずれか1記載
の有機エレクトロルミネッセンス表示パネル。
6. The support substrate is made of a resin and has an inorganic barrier film covering the surface of the support substrate at least between the organic electroluminescence element and the support substrate. The organic electroluminescence display panel according to any one of claims 1.
【請求項7】 前記支持基板における、前記有機エレク
トロルミネッセンス素子に接触する表面の裏側の表面を
覆う第2の無機バリア膜を含むことを特徴とする請求項
6記載の有機エレクトロルミネッセンス表示パネル。
7. The organic electroluminescence display panel according to claim 6, further comprising a second inorganic barrier film that covers a surface of the support substrate on the back side of the surface in contact with the organic electroluminescence element.
【請求項8】 前記無機バリア膜は窒化酸化シリコンか
らなることを特徴とする請求項6又は7記載の有機エレ
クトロルミネッセンス表示パネル。
8. The organic electroluminescence display panel according to claim 6, wherein the inorganic barrier film is made of silicon oxynitride.
【請求項9】 前記無機バリア膜はスパッタ法により成
膜されたことを特徴とする請求項6〜8のいずれか1記
載の有機エレクトロルミネッセンス表示パネル。
9. The organic electroluminescence display panel according to claim 6, wherein the inorganic barrier film is formed by a sputtering method.
【請求項10】 前記樹脂材料含有膜は、色変換膜を備
えることを特徴とする請求項1〜9のいずれか1記載の
有機エレクトロルミネッセンス表示パネル。
10. The organic electroluminescence display panel according to claim 1, wherein the resin material-containing film includes a color conversion film.
JP2002094881A 2002-03-29 2002-03-29 Organic electroluminescence display panel Pending JP2003297552A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2002094881A JP2003297552A (en) 2002-03-29 2002-03-29 Organic electroluminescence display panel
PCT/JP2003/003313 WO2003084290A1 (en) 2002-03-29 2003-03-19 Organic electroluminescence display panel
EP20030712755 EP1492387A1 (en) 2002-03-29 2003-03-19 Organic electroluminescence display panel
US10/509,079 US20050156519A1 (en) 2002-03-29 2003-03-19 Organic electroluminescence display panel
CNA038072645A CN1643989A (en) 2002-03-29 2003-03-19 Organic electroluminescence display panel
AU2003221089A AU2003221089A1 (en) 2002-03-29 2003-03-19 Organic electroluminescence display panel
KR10-2004-7015179A KR20040102054A (en) 2002-03-29 2003-03-19 Organic electroluminescence display panel
TW092106205A TW594619B (en) 2002-03-29 2003-03-20 Organic electroluminescent display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
JP2003297552A true JP2003297552A (en) 2003-10-17

Family

ID=29387077

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