JP2997021B2 - Organic electroluminescence device - Google Patents
Organic electroluminescence deviceInfo
- Publication number
- JP2997021B2 JP2997021B2 JP2213019A JP21301990A JP2997021B2 JP 2997021 B2 JP2997021 B2 JP 2997021B2 JP 2213019 A JP2213019 A JP 2213019A JP 21301990 A JP21301990 A JP 21301990A JP 2997021 B2 JP2997021 B2 JP 2997021B2
- Authority
- JP
- Japan
- Prior art keywords
- compound
- organic
- following formula
- represented
- tetraphenylbutadiene
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 技術分野 本発明はエレクトロルミネッセンス素子に関し、特に
有機化合物を蛍光体として構成される有機エレクトロル
ミネッセンス素子に関する。Description: TECHNICAL FIELD The present invention relates to an electroluminescence device, and more particularly, to an organic electroluminescence device including an organic compound as a phosphor.
背景技術 この種の有機エレクトロルミネッセンス素子として、
第２図に示すように、陰極である金属電極１と陽極であ
る透明電極２との間に有機化合物からなり互いに積層さ
れた有機蛍光体薄膜３及び有機正孔輸送層４が配された
２層構造のものや、第３図に示すように、金属電極１と
透明電極２との間に互いに積層された有機電子輸送層
５、有機蛍光体薄膜３及び有機正孔輸送層４が配された
３層構造のものが知られている。ここで、有機正孔輸送
層４は陽極から正孔を注入させ易くする機能と電子をブ
ロックする機能とを有し、有機電子輸送層５は陰極から
電子を注入させ易くする機能を有している。BACKGROUND ART As this kind of organic electroluminescent element,
As shown in FIG. 2, an organic phosphor thin film 3 and an organic hole transport layer 4 which are made of an organic compound and stacked on each other are disposed between a metal electrode 1 as a cathode and a transparent electrode 2 as an anode. A layered structure, or as shown in FIG. 3, an organic electron transport layer 5, an organic phosphor thin film 3, and an organic hole transport layer 4 which are laminated between a metal electrode 1 and a transparent electrode 2 are arranged. A three-layer structure is known. Here, the organic hole transport layer 4 has a function of facilitating the injection of holes from the anode and a function of blocking electrons, and the organic electron transport layer 5 has a function of facilitating the injection of electrons from the cathode. I have.
これら有機エレクトロルミネッセンス素子において、
透明電極２の外側にはガラス基板６が配されており、金
属電極１から注入された電子と透明電極２から注入され
た正孔との再結合によって、励起子が生じ、この励起子
が放射失活する過程で光を放ち、この光が透明電極２及
びガラス基板６を介して外部に放出されることになる。In these organic electroluminescent devices,
A glass substrate 6 is disposed outside the transparent electrode 2, and excitons are generated by recombination of electrons injected from the metal electrode 1 and holes injected from the transparent electrode 2, and the excitons are radiated. Light is emitted in the process of deactivation, and this light is emitted outside via the transparent electrode 2 and the glass substrate 6.
しかしながら、上述した構成の従来の有機エレクトロ
ルミネッセンス素子においては、例えば、置換基として
フェニル基のみを有するテトラフエニルブタジエン化合
物蛍光体層を有したものであって印加電圧が低く高輝度
発光をするものであっても、蛍光体の結晶化が速く寿命
が短いために、素子作成上問題があった。However, in the conventional organic electroluminescence device having the above-described configuration, for example, a device having a tetraphenylbutadiene compound phosphor layer having only a phenyl group as a substituent and emitting a high-luminance light with a low applied voltage is used. However, since the phosphor is rapidly crystallized and has a short life, there is a problem in device fabrication.
発明の概要 ［発明の目的］ 本発明は、上述した従来の要望を満たすべくなされた
ものであって、有機蛍光体を効率良く高輝度にて発光さ
せることができ長寿命の有機エレクトロルミネッセンス
素子を提供することを目的とする。SUMMARY OF THE INVENTION [Object of the Invention] The present invention has been made in order to satisfy the above-mentioned conventional needs, and provides an organic electroluminescent device which can efficiently emit an organic phosphor with high luminance and has a long life. The purpose is to provide.
［発明の構成］ 本発明による有機エレクトロルミネッセンス素子にお
いては、有機化合物からなり互いに積層された電子輸送
層、蛍光体発光層及び正孔輸送層が陰極及び陽極間に配
された構成の有機エレクトロルミネッセンス素子であっ
て、前記蛍光体層は下記式（A1）で示されるテトラフェ
ニルブタジエン化合物で、 上記（A1）式中、R1ないしR12は水素（但し、R1〜R12が
同時に水素である場合を除く。）、アルキル基、アルコ
オキシル基、置換基を有していても良いフェニル基又は
ジアルキルアミノ基であり、R13、R14は水素、アルキル
基、アルコキシル基、置換基を有していても良いフェニ
ル基又はハロゲンであることを特徴とする。[Structure of the Invention] In the organic electroluminescence device according to the present invention, the organic electroluminescence device has a structure in which an electron transport layer, a phosphor light emitting layer, and a hole transport layer, which are made of an organic compound and are laminated, are arranged between a cathode and an anode. In the device, the phosphor layer is a tetraphenylbutadiene compound represented by the following formula (A1): In the above formula (A1), R 1 to R 12 are hydrogen (excluding the case where R 1 to R 12 are simultaneously hydrogen), an alkyl group, an alkoxyl group, and a phenyl which may have a substituent. R 13 and R 14 are hydrogen, an alkyl group, an alkoxyl group, a phenyl group which may have a substituent or a halogen.
以下、本発明を図に基づいて詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図は本発明の一実施例を示す構造であり、図中第
２図及び第３図と同等部分には同一符号が付されてい
る。FIG. 1 shows the structure of an embodiment of the present invention, in which the same reference numerals are given to the same parts as in FIG. 2 and FIG.
図において、陰極である金属電極１には、仕事関数が
小さな金属、例えば厚さが約500Å以上のアルミニウ
ム、マグネシウム、インジウム、銀又はこれらの合金が
用い得る。In the figure, a metal having a small work function, for example, aluminum, magnesium, indium, silver, or an alloy thereof having a thickness of about 500 ° or more can be used for a metal electrode 1 serving as a cathode.
陽極である透明電極２には、仕事関数の大きな導電性
材料、例えば厚さが1000〜3000Å程度のインジウムすず
酸化物（I.T.O.）、すず酸化物又は厚さが800〜15000Å
程度の金が用い得る。なお、金を電極材料として用いた
場合には、電極２は半透明の状態となる。The transparent electrode 2 serving as the anode is made of a conductive material having a large work function, for example, indium tin oxide (ITO) having a thickness of about 1000 to 3000 °, tin oxide, or 800 to 15000 °.
A degree of gold can be used. When gold is used as the electrode material, the electrode 2 is in a translucent state.
金属電極１と透明電極２との間には、図の上から順に
積層された有機電子輸送層５、有機蛍光体薄膜７及び有
機正孔輸送層４が配されている。Between the metal electrode 1 and the transparent electrode 2, an organic electron transport layer 5, an organic phosphor thin film 7, and an organic hole transport layer 4, which are sequentially stacked from the top of the figure, are arranged.
有機正孔輸送層４には、トリフェニルアミン誘導体、
例えば下記式（Ｉ）の化合物の薄膜を用いる。The organic hole transport layer 4 includes a triphenylamine derivative,
For example, a thin film of the compound of the following formula (I) is used.
また、有機正孔輸送層４には、更に下記式（II）〜
（XII）のCTM（Carrier Transmiting Materials）とし
て知られる化合物を用い得る。 The organic hole transport layer 4 further includes the following formulas (II) to (II).
A compound known as CTM (Carrier Transmitting Materials) of (XII) may be used.
有機蛍光体薄膜７としては、テトラフェニルブタジエ
ン化合物を含む蛍光体薄膜が用いられる。かかる有機蛍
光体薄膜７の膜厚は１μｍ以下に設定される。 As the organic phosphor thin film 7, a phosphor thin film containing a tetraphenylbutadiene compound is used. The thickness of the organic phosphor thin film 7 is set to 1 μm or less.
有機蛍光体薄膜７としては、下記構造式（A1）で示さ
れるテトラフェニルブタジエン化合物が用いられる。As the organic phosphor thin film 7, a tetraphenylbutadiene compound represented by the following structural formula (A1) is used.
ここで、上記（A1）中、R1〜R12は水素（但し、R1〜R
12が同時に水素である場合を除く。）、アルキル基、ア
ルコオキシル基、置換基を有していても良いフェニル基
又はジアルキルアミノ基であり、R13及びR14は水素、ア
ルキル基、アルコキシル基、置換基を有していても良い
フェニル基又はハロゲンを表わす。上記（A1）式のテト
ラフェニルブタジエン化合物は、第１表に示すR1〜R14
の置換基の組No.1〜No.25のいずれかを有するものが好
ましい。 Here, in the above (A1), R 1 to R 12 are hydrogen (however, R 1 to R
Except when 12 is simultaneously hydrogen. ), An alkyl group, an alkoxyl group, a phenyl group or a dialkylamino group which may have a substituent, and R 13 and R 14 may have a hydrogen, an alkyl group, an alkoxyl group, or a substituent Represents a phenyl group or a halogen. The tetraphenylbutadiene compound represented by the formula (A1) is represented by R 1 to R 14 shown in Table 1.
The one having any of the set of substituents No. 1 to No. 25 is preferable.
電子輸送層５としては、下記（XIII）式のBu−PBD
［２−（４′−tert−Butylphenyl）−５−（bipheny
l）−1,3,4−oxadiazole］が好ましく用いられ、また下
記（XIV）〜（XXIII）式の化合物も用いられ得る。 As the electron transport layer 5, a Bu-PBD of the following formula (XIII)
[2- (4'-tert-Butylphenyl) -5- (bipheny
l) -1,3,4-oxadiazole] are preferably used, and compounds of the following formulas (XIV) to (XXIII) can also be used.
発明の効果 以上説明したように、本発明による有機エレクトロル
ミネッセンス素子においては、有機化合物からなり互い
に積層された電子輸送層、蛍光体発光層及び正孔輸送層
が陰極及び陽極間に配された構成の有機エレクトロルミ
ネッセンス素子であって、蛍光体蛍光層が、上記（A1）
式のテトラフェニルブタジエン化合物を含む薄膜からな
るので、螢光体発光層がアモルファス状態で、効率良く
高輝度で長期間に亘って発光させることができる。 Effect of the Invention As described above, in the organic electroluminescence device according to the present invention, a configuration in which the electron transport layer, the phosphor light emitting layer, and the hole transport layer, which are made of an organic compound and are stacked on each other, is disposed between the cathode and the anode. The organic electroluminescence device of the above, wherein the phosphor phosphor layer is the above (A1)
Since the phosphor emitting layer is made of a thin film containing the tetraphenylbutadiene compound of the formula, the phosphor emitting layer can emit light efficiently and with high luminance over a long period of time in an amorphous state.
実 施 例 本発明の実施例の有機エレクトロルミネッセンス素子
を作成しそれを発光させた。Example An organic electroluminescence device according to an example of the present invention was prepared and emitted light.
まず、実施例１として、ガラス基板上に陽極である透
明電極のI.T.O.を2000Å薄膜で成膜したものを用意し
た。陰極である金属電極には、アルミニウムまたは、マ
グネシウムと銀の合金を用いた。電子輸送層５には上記
（XIII）式のBu−PBDを、有機正孔輸送層４には上記
（Ｉ）式のトリフェニルアミン誘導体をそれぞれ用い
た。First, as Example 1, a glass substrate was prepared in which a transparent electrode of ITO, which is an anode, was formed in a thin film of 2000 mm. Aluminum or an alloy of magnesium and silver was used for the metal electrode serving as the cathode. For the electron transporting layer 5, Bu-PBD of the above formula (XIII) was used, and for the organic hole transporting layer 4, the triphenylamine derivative of the above formula (I) was used.
有機蛍光体薄膜７としては、上記テトラフェニルブタ
ジエン化合物が下記（A2）式、 で示される化合物を用いた。As the organic phosphor thin film 7, the above tetraphenylbutadiene compound is represented by the following formula (A2): The compound shown by was used.
実施例２としては、有機蛍光体７として上記テトラフ
ェニルブタジエン化合物であって、下記（A3）式、 で示される化合物を用い他の構成を実施例１と同一とし
たものを作製した。In Example 2, the organic phosphor 7 is the above-mentioned tetraphenylbutadiene compound, and has the following formula (A3): A compound having the same structure as in Example 1 except for the above-mentioned compound was prepared.
実施例３としては、有機螢光体７として上記テトラフ
ェニルブタジエン化合物であって、下記（A4）式、 で示される化合物を用い他の構成を実施例１と同一とし
たものを作製した。In Example 3, the above-mentioned tetraphenylbutadiene compound was used as the organic phosphor 7 and represented by the following formula (A4): A compound having the same structure as in Example 1 except for the above-mentioned compound was prepared.
実施例４としては、有機螢光体７として上記テトラフ
ェニルブタジエン化合物であって、下記（A5）式、 で示される化合物を用い他の構成を実施例１と同一とし
たものを作製した。In Example 4, the organic phosphor 7 is the above-mentioned tetraphenylbutadiene compound, and has the following formula (A5): A compound having the same structure as in Example 1 except for the above-mentioned compound was prepared.
実施例１から４について、正孔輸送層、蛍光体薄膜及
び陰極を成膜する際の真空度、蒸着速度及び膜厚等の成
膜条件は第１表の如くであり、この表において、得られ
た両実施例の有機エレクトロルミネッセンス素子に電圧
20Vを印加することにより得た発光特性を併記する。Regarding Examples 1 to 4, the film forming conditions such as the degree of vacuum, the deposition rate and the film thickness when forming the hole transport layer, the phosphor thin film and the cathode are as shown in Table 1. Voltage applied to the organic electroluminescent devices of
The emission characteristics obtained by applying 20 V are also shown.
さらに、本実施例３における蛍光体層と従来の置換基
としてフェニル基のみを有するテトラフェニルブタジエ
ン化合物蛍光体層の有機エレクトロルミネッセンス素子
の両蛍光体表面を電子顕微鏡写真で比較した結果、本実
施例３の方が結晶化が進まず表面（界面）の滑らかなも
のであり、本実施例３の素子は均一な発光状態を維持し
ているのに対し、従来の素子は結晶化した部分の発光が
見られず短命であった。 Further, as a result of comparing both phosphor surfaces of the organic electroluminescent device of the phosphor layer in the third embodiment and the conventional tetraphenylbutadiene compound phosphor layer having only a phenyl group as a substituent, by electron micrographs, No. 3 shows that the crystallization does not progress and the surface (interface) is smoother, and the device of Example 3 maintains a uniform light emitting state, whereas the conventional device emits light of the crystallized portion. Was short-lived.
第１図は本発明の実施例を示す構造図、第２図及び第３
図は従来例を示す構造図である。 主要部分の符号の説明 １……金属電極（陰極） ２……透明電極（陽極） ４……有機正孔輸送層 ６……ガラス基板 ７……有機蛍光体薄膜 ５……有機電子輸送層FIG. 1 is a structural view showing an embodiment of the present invention, FIG. 2 and FIG.
FIG. 1 is a structural view showing a conventional example. Description of Signs of Main Parts 1 ... Metal electrode (cathode) 2 ... Transparent electrode (anode) 4 ... Organic hole transport layer 6 ... Glass substrate 7 ... Organic phosphor thin film 5 ... Organic electron transport layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 義一 東京都北区志茂３丁目26番８号 (72)発明者 野村 正治 東京都北区志茂３丁目26番８号 (56)参考文献 特開 平４−88079（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C09K 11/06 ＣＡ（ＳＴＮ) ＲＥＧＩＳＴＲＹ（ＳＴＮ) ＷＰＩ（ＤＩＡＬＯＧ)──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshikazu Sato 3-26-8 Shimo, Kita-ku, Tokyo (72) Inventor Masaharu Nomura 3-26-8 Shimo, Kita-ku, Tokyo (56) References JP Hei 4-88079 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C09K 11/06 CA (STN) REGISTRY (STN) WPI (DIALOG)
Claims (6)
輸送層、蛍光体層及び正孔輸送層が陰極及び陽極間に配
された構成の有機エレクトロルミネッセンス素子であっ
て、前記蛍光体層は下記式（A1）で示されるテトラフェ
ニルブタジエン化合物 であって、上記（A1）式中、R1ないしR12は水素（但
し、R1〜R12が同時に水素である場合を除く）、アルキ
ル基、アルコオキシル基、置換基を有していても良いフ
ェニル基又はジアルキルアミノ基であり、R13及びR14は
水素、アルキル基、アルコキシル基、置換基を有してい
ても良いフェニル基又はハロゲンである（但し、R13及
びR14が共に水素で、４個のフェニル核の内のアルコオ
キシル基を有していないフェニル核が２個存在する場合
を除く）ことを特徴とする有機エレクトロルミネッセン
ス素子。1. An organic electroluminescent device comprising an organic compound, wherein an electron transport layer, a phosphor layer and a hole transport layer, which are laminated on each other, are arranged between a cathode and an anode. Tetraphenylbutadiene compound represented by the formula (A1) Wherein, in the above formula (A1), R 1 to R 12 each have a hydrogen (except when R 1 to R 12 are simultaneously hydrogen), an alkyl group, an alkoxyl group, and a substituent. R 13 and R 14 are hydrogen, an alkyl group, an alkoxyl group, an optionally substituted phenyl group or halogen (provided that both R 13 and R 14 are An organic electroluminescent device characterized by the fact that hydrogen does not have two phenyl nuclei having no alkoxyoxyl group among the four phenyl nuclei).
記（A2）式、 で示される化合物である事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素子。2. The method according to claim 1, wherein the tetraphenylbutadiene compound is represented by the following formula (A2): The organic electroluminescence device according to claim 1, wherein the compound is a compound represented by the following formula:
記（A3）式、 で示される化合物である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素子。3. The compound according to claim 1, wherein the tetraphenylbutadiene compound is represented by the following formula (A3): The organic electroluminescent device according to claim 1, wherein the organic electroluminescent device is a compound represented by the following formula:
記（A4）式、 で示される化合物である事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素子。4. The method of claim 1, wherein the tetraphenylbutadiene compound has the following formula (A4): The organic electroluminescence device according to claim 1, wherein the compound is a compound represented by the following formula:
記（A5）式、 で示される化合物である事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素子。5. The method according to claim 1, wherein the tetraphenylbutadiene compound is represented by the following formula (A5): The organic electroluminescence device according to claim 1, wherein the compound is a compound represented by the following formula:
記（A6）式、 で示される化合物である事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素子。6. The compound according to claim 1, wherein the tetraphenylbutadiene compound is represented by the following formula (A6): The organic electroluminescence device according to claim 1, wherein the compound is a compound represented by the following formula:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2213019A JP2997021B2 (en) | 1990-08-10 | 1990-08-10 | Organic electroluminescence device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2213019A JP2997021B2 (en) | 1990-08-10 | 1990-08-10 | Organic electroluminescence device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0496990A JPH0496990A (en) | 1992-03-30 |
| JP2997021B2 true JP2997021B2 (en) | 2000-01-11 |
Family
ID=16632161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2213019A Expired - Fee Related JP2997021B2 (en) | 1990-08-10 | 1990-08-10 | Organic electroluminescence device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2997021B2 (en) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU713944B2 (en) | 1996-05-15 | 1999-12-16 | Chemipro Kasei Kaisha, Limited | Multicolor organic el element, method for manufacturing the same, and display using the same |
| JPH10270171A (en) * | 1997-01-27 | 1998-10-09 | Junji Kido | Organic electroluminescent element |
| JP4514841B2 (en) | 1998-02-17 | 2010-07-28 | 淳二 城戸 | Organic electroluminescent device |
| JPH11251067A (en) | 1998-03-02 | 1999-09-17 | Junji Kido | Organic electroluminescence element |
| JP4505067B2 (en) | 1998-12-16 | 2010-07-14 | 淳二 城戸 | Organic electroluminescent device |
| TW474114B (en) | 1999-09-29 | 2002-01-21 | Junji Kido | Organic electroluminescent device, organic electroluminescent device assembly and method of controlling the emission spectrum in the device |
| KR20020046316A (en) * | 2000-12-12 | 2002-06-21 | 엘지전자 주식회사 | organic electroluminescence device |
| JP4683829B2 (en) | 2003-10-17 | 2011-05-18 | 淳二 城戸 | Organic electroluminescent device and manufacturing method thereof |
| JP2005255562A (en) * | 2004-03-09 | 2005-09-22 | Kyoto Univ | Multi-substituted butadiene and selective method for producing the same |
| US20070141388A1 (en) * | 2005-12-16 | 2007-06-21 | Eastman Kodak Company | Electroluminescent device containing a butadiene derivative |
| KR101353434B1 (en) | 2011-10-17 | 2014-01-21 | 주식회사 엘지화학 | Substrate for organic electronic device |
| KR20130108026A (en) | 2012-03-23 | 2013-10-02 | 주식회사 엘지화학 | Organic light emitting device |
| KR20130108027A (en) | 2012-03-23 | 2013-10-02 | 주식회사 엘지화학 | Method for preparing substrate for organic electronic device |
| KR20130108028A (en) | 2012-03-23 | 2013-10-02 | 주식회사 엘지화학 | Organic light emitting device |
| JP5956673B2 (en) | 2012-03-30 | 2016-07-27 | エルジー ディスプレイ カンパニー リミテッド | ORGANIC ELECTRONIC ELEMENT SUBSTRATE, ORGANIC ELECTRONIC DEVICE, SUBSTRATE MANUFACTURING METHOD, AND LIGHTING |
| KR20130111154A (en) | 2012-03-30 | 2013-10-10 | 주식회사 엘지화학 | Substrate for organic electronic device |
| KR20130111156A (en) | 2012-03-30 | 2013-10-10 | 주식회사 엘지화학 | Substrate for organic electronic device |
| CN104508854B (en) | 2012-07-31 | 2017-12-01 | 株式会社Lg化学 | Substrate for organic electronic device |
| CN104737321B (en) | 2012-07-31 | 2018-05-11 | 株式会社Lg化学 | Substrate for organic electronic device |
| EP2882007A4 (en) | 2012-07-31 | 2016-03-16 | Lg Chemical Ltd | Substrate for organic electronic device |
| WO2014084699A1 (en) | 2012-11-30 | 2014-06-05 | 주식회사 엘지화학 | Substrate for organic electronic element |
| CN104823298B (en) | 2012-11-30 | 2017-03-08 | 株式会社Lg化学 | Substrate for organic electronic device |
| KR101928598B1 (en) | 2013-09-30 | 2018-12-12 | 주식회사 엘지화학 | Polyimide film and process for preparing same |
| US9741951B2 (en) | 2013-09-30 | 2017-08-22 | Lg Chem, Ltd. | Substrate for organic electronic device and method for manufacturing same |
| WO2015047055A1 (en) | 2013-09-30 | 2015-04-02 | 주식회사 엘지화학 | Substrate for organic electronic device |
| CN105264685B (en) | 2013-09-30 | 2018-05-22 | 乐金显示有限公司 | The manufacturing method of organic electronic device |
| CN105518895B (en) | 2013-09-30 | 2017-08-01 | 株式会社Lg化学 | Substrate and its manufacture method for organic electronic device |
| CN105247702B (en) | 2013-09-30 | 2018-10-26 | 乐金显示有限公司 | Organic electronic device |
| EP2963700B1 (en) | 2013-09-30 | 2019-11-06 | LG Display Co., Ltd. | Method for manufacturing organic electronic device |
| US9691995B2 (en) | 2013-12-04 | 2017-06-27 | Lg Chem, Ltd. | Method of manufacturing substrate for organic electronic device |
-
1990
- 1990-08-10 JP JP2213019A patent/JP2997021B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0496990A (en) | 1992-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2997021B2 (en) | Organic electroluminescence device | |
| JP3016896B2 (en) | Organic electroluminescence device | |
| JP2891783B2 (en) | Organic electroluminescence device | |
| JP2891784B2 (en) | Organic electroluminescence device | |
| JP2974835B2 (en) | Organic electroluminescence device | |
| JP3562652B2 (en) | Organic electroluminescence device | |
| JP3236332B2 (en) | Organic electroluminescence device | |
| JP2815472B2 (en) | EL device | |
| JP2731216B2 (en) | EL device | |
| JPH06163158A (en) | Organic electroluminescence element | |
| JPH0790256A (en) | Organic electroluminescent device | |
| JPH0288689A (en) | Luminescent element of electric field | |
| JP2772019B2 (en) | EL device | |
| WO2008015963A1 (en) | Organic electroluminescence element | |
| JP2749407B2 (en) | EL device | |
| JP2922212B2 (en) | EL device | |
| JP2659597B2 (en) | EL device | |
| JPH03162481A (en) | Electroluminescent element | |
| JPH0665569A (en) | Electroluminescent element | |
| JP2888740B2 (en) | Organic electroluminescence device | |
| JPH1140352A (en) | Organic el element and manufacture thereof | |
| JP2886218B2 (en) | EL device | |
| JP2663648B2 (en) | Organic electroluminescence device | |
| JP2807294B2 (en) | EL device | |
| JP2731269B2 (en) | EL device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071029 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081029 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091029 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |