JPH0337991A - Luminous element - Google Patents
Luminous elementInfo
- Publication number
- JPH0337991A JPH0337991A JP1172329A JP17232989A JPH0337991A JP H0337991 A JPH0337991 A JP H0337991A JP 1172329 A JP1172329 A JP 1172329A JP 17232989 A JP17232989 A JP 17232989A JP H0337991 A JPH0337991 A JP H0337991A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- light
- oxygen
- light emitting
- organic light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000001301 oxygen Substances 0.000 claims abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 claims description 8
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 6
- VPUGDVKSAQVFFS-UHFFFAOYSA-N coronene Chemical compound C1=C(C2=C34)C=CC3=CC=C(C=C3)C4=C4C3=CC=C(C=C3)C4=C2C3=C1 VPUGDVKSAQVFFS-UHFFFAOYSA-N 0.000 claims description 6
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 claims description 6
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 5
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 claims description 5
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 claims description 5
- YGLVWOUNCXBPJF-UHFFFAOYSA-N (2,3,4,5-tetraphenylcyclopenta-1,4-dien-1-yl)benzene Chemical compound C1=CC=CC=C1C1C(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)C(C=2C=CC=CC=2)=C1C1=CC=CC=C1 YGLVWOUNCXBPJF-UHFFFAOYSA-N 0.000 claims description 4
- JCXLYAWYOTYWKM-UHFFFAOYSA-N (2,3,4-triphenylcyclopenta-1,3-dien-1-yl)benzene Chemical compound C1C(C=2C=CC=CC=2)=C(C=2C=CC=CC=2)C(C=2C=CC=CC=2)=C1C1=CC=CC=C1 JCXLYAWYOTYWKM-UHFFFAOYSA-N 0.000 claims description 4
- XBDYBAVJXHJMNQ-UHFFFAOYSA-N Tetrahydroanthracene Natural products C1=CC=C2C=C(CCCC3)C3=CC2=C1 XBDYBAVJXHJMNQ-UHFFFAOYSA-N 0.000 claims description 4
- DXBHBZVCASKNBY-UHFFFAOYSA-N 1,2-Benz(a)anthracene Chemical compound C1=CC=C2C3=CC4=CC=CC=C4C=C3C=CC2=C1 DXBHBZVCASKNBY-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 2
- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 claims 1
- LGCMKPRGGJRYGM-UHFFFAOYSA-N Osalmid Chemical compound C1=CC(O)=CC=C1NC(=O)C1=CC=CC=C1O LGCMKPRGGJRYGM-UHFFFAOYSA-N 0.000 claims 1
- 125000001624 naphthyl group Chemical group 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000005283 ground state Effects 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- UVHXEHGUEKARKZ-UHFFFAOYSA-N 1-ethenylanthracene Chemical compound C1=CC=C2C=C3C(C=C)=CC=CC3=CC2=C1 UVHXEHGUEKARKZ-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 229960000956 coumarin Drugs 0.000 description 2
- 235000001671 coumarin Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- LDZCNNKHPNYYSX-UHFFFAOYSA-N n,n,2-triphenylaniline Chemical class C1=CC=CC=C1N(C=1C(=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 LDZCNNKHPNYYSX-UHFFFAOYSA-N 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical class N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Led Devices (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は有機発光物質を用いた発光素子の構成及び製造
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure and manufacturing method of a light emitting device using an organic light emitting substance.
［従来の技術］
近年オフィスオートメーションに伴い、マンマシンイン
ターフェイスとして軽量薄型低消費電力デイスプレィの
開発が盛んである。このようなデイスプレィとして有８
１発光物質を用いたＥＬ方式が研究されている（応用物
理学会１９８８年春季年会予稿集３０ａ−Ａ−１など）
。[Prior Art] In recent years, with office automation, development of lightweight, thin, and low power consumption displays as man-machine interfaces has been active. There are 8 types of displays like this.
1 EL system using luminescent substances is being researched (Proceedings of the 1988 Spring Annual Meeting of the Japan Society of Applied Physics, 30a-A-1, etc.)
.
有機発光物質を用いたＥＬ方式では電界を印加してから
発光するまでの過程において電荷注入が生じアニオンラ
ジカルおよびカヂオンラジカルが発生しこれら２種類の
ラジカルが結合し発光して失活する、
「発明が解決しようとする課題］
しかしこのような方式に於ては発光過程に於下ラジカル
が発生するため酸素が存在するとこのラジカルと結合し
発光層が酸化し劣化する。In an EL system using an organic light-emitting substance, charge injection occurs during the process from applying an electric field to emitting light, generating anion radicals and cation radicals, and these two types of radicals combine to emit light and are deactivated. [Problems to be Solved by the Invention] However, in such a system, radicals are generated during the light emitting process, and when oxygen is present, it combines with these radicals and the light emitting layer is oxidized and deteriorated.
そこで本発明では、このような劣化の生じない素子構造
及び製造方法について記述する。Therefore, in the present invention, an element structure and manufacturing method that does not cause such deterioration will be described.
［課題を解決するための手段］
本発明の発光素子は、
■ 有機発光物質を用いた発光素子に於て、有機発光層
を脱酸素雰囲気に保持することを特徴とする。[Means for Solving the Problems] The light-emitting device of the present invention is characterized in that: (1) In the light-emitting device using an organic light-emitting substance, the organic light-emitting layer is maintained in an oxygen-free atmosphere.
■上記有機発光層近傍に正孔泣入層および電子注入層の
少なくこもとちらか］方を有することを特徴とする。(2) It is characterized by having a hole injecting layer and an electron injection layer in the vicinity of the organic light emitting layer.
■上記発光素子をｌｌ５ｉ！酸素雰囲気に保持する方法
２ニして脱酸素雰囲気中で有機発光層を形成することを
特徴どする。■The above light emitting element is ll5i! Method 2 of maintaining in an oxygen atmosphere is characterized in that the organic light-emitting layer is formed in an oxygen-free atmosphere.
■上記発光素子を脱酸素雰囲気に保持する方法として有
機発光層近傍に酸素吸着層を形成した。ことを特徴とす
る。(2) An oxygen adsorption layer was formed near the organic light emitting layer as a method for maintaining the light emitting device in an oxygen-free atmosphere. It is characterized by
■上記有機発光物質がｊ−ノタＩ／ン、アントラセン、
テトラセン、ナフタセン、：′１０ネン、ベリｌノン、
ヒ１／ン、テトラフェニルシクロペンタジェン、ペンタ
フェニルシクロペンタジェン０．キノリン、フェナンス
レン、ベンズアントラセン、クマリンなどの誘導体化合
物であることを特徴２ニする、［作用］
本発明の上記の構成によれば、脱酸素雰囲気下で発光層
を形成しあるいは発光層近恍に酸素吸着層を形成するこ
ヒにより、発光時に生成するラジカルと反応する酸素が
存在しなくなるため、生成したラジカルの・もつ電荷は
効率よく対になるラジカルのもつ電荷ヒ再結合しラジカ
ルは基底状態に失活しながら発光する。このため発光層
は劣化せず寿命が大幅に改善されるのである。■The above organic light-emitting substance is j-notane, anthracene,
Tetracene, naphthacene, :'10ne, berylnon,
h1/n, tetraphenylcyclopentadiene, pentaphenylcyclopentadiene 0. [Function] According to the above structure of the present invention, a light-emitting layer is formed in an oxygen-free atmosphere or a light-emitting layer is formed near the light-emitting layer. Due to the formation of an oxygen adsorption layer, there is no oxygen to react with the radicals generated during light emission, so the charges of the generated radicals are efficiently recombined with the charges of the paired radicals, and the radicals return to the ground state. It emits light while deactivating. Therefore, the light emitting layer does not deteriorate and its lifespan is greatly improved.
以下、実施例により本発明の詳χ４１１を示す、［実施
例１］
第１図は本発明の実施例における基本摺成を示す発光素
子の断面図である。ここでは、発光物質モノマーヒして
ビニルアントラセンを用い、成膜法辷して途布法を用い
た実施例を示す。The details of the present invention will be described below with reference to Examples. [Example 1] FIG. 1 is a cross-sectional view of a light emitting device showing the basic structure of an example of the present invention. Here, an example will be shown in which vinylanthracene is used as a luminescent material monomer and a film-forming method is used.
電極（ＩＴＯを使用したがこれに限らない）２を設けた
基板１にビニルアントラセンモノマーの５％トルエン溶
液をスピンコーターにより塗布し、厚さ１０００人の発
光層４とした。この基板に外側から紫外線を照射し組合
させた。この層４の上にマグネシウムを蒸着し対向電極
６とした。更にこの電極６の上に酸素吸着層７として酸
素吸着剤（ここでは三菱瓦斯化学化３製のエージレスを
用いたがこれに限らない）をポリビニルアルコールに分
散した層を形成した。その後この７２板をアクリル樹脂
でモールド（８）した。こうして得られた発光素子に６
０Ｖの電界を印加したところ安定した発光が観測された
。発光層の厚みは５００人〜１μｍの間であればよい、
５００Å以下であると、電界を印加した際ショートする
可能性がある。】μｍ以上であると、印加電圧が高くな
り実用的でない。有機発光物質はナフタレン、アントラ
セン、テトラセン、ナフタセン、コロネン、ペリレン、
ビレン、テトラフェニルシクロペンタジェン、ペンタフ
ェニルシクロペンタジェン、キノリン、フェナンスレン
、ベンズアントラセン、クマリンなどの誘導体が利用で
きる。これらの物質を混合して用いるこヒにより様々な
色調の発光を得ることができた。A 5% solution of vinyl anthracene monomer in toluene was applied using a spin coater to a substrate 1 provided with an electrode 2 (ITO was used, but not limited to this) to form a light-emitting layer 4 having a thickness of 1000 nm. This substrate was irradiated with ultraviolet light from the outside and assembled. Magnesium was vapor-deposited on this layer 4 to form a counter electrode 6. Further, on this electrode 6, a layer in which an oxygen adsorbent (Ageless manufactured by Mitsubishi Gas Kagaku Kagaku 3 was used, but not limited to this) dispersed in polyvinyl alcohol was formed as an oxygen adsorption layer 7. Thereafter, this 72 plate was molded (8) with acrylic resin. The light emitting device thus obtained has 6
When an electric field of 0V was applied, stable light emission was observed. The thickness of the light emitting layer may be between 500 and 1 μm.
If it is less than 500 Å, there is a possibility that a short circuit will occur when an electric field is applied. ] If it is more than .mu.m, the applied voltage becomes high and is not practical. Organic luminescent substances include naphthalene, anthracene, tetracene, naphthacene, coronene, perylene,
Derivatives such as birene, tetraphenylcyclopentadiene, pentaphenylcyclopentadiene, quinoline, phenanthrene, benzanthracene, and coumarin can be used. By using a mixture of these substances, it was possible to obtain light emission in various tones.
［実施例２］
本実施例では電荷注入層を形成した例を示す。正孔注入
層３としてトリフェニルアニリン誘導体（（ＣｅＨｓ）
２Ｎ （ＣｅＨｓ）２Ｎ （ＣｓＨｓ）２ ＴＰＡ
と略記）、有機発光層４としてはべりレンを用いた。電
極２付き基板１にＴＰＡの２％アルコール溶液をスピン
コードし膜厚５００人の正孔注入層３ヒした。その上に
有機発光層４であるペリレンを５％トルエン溶液として
スピンコードし１０００人の膜厚とした。その後マグネ
シウム電極６を蒸着法にて形成した。更にこの電極の上
に酸素吸着層７として酸素吸着剤（ここでは三菱瓦斯化
学■製のエージレスを用いたがこれに限らない）をポリ
ビニルアルコールに分散した層を形成した。[Example 2] This example shows an example in which a charge injection layer was formed. As the hole injection layer 3, a triphenylaniline derivative ((CeHs)
2N (CeHs)2N (CsHs)2 TPA
), and perylene was used as the organic light emitting layer 4. A 2% alcohol solution of TPA was spin-coated on the substrate 1 with the electrode 2, and a hole injection layer 3 with a thickness of 500 nm was formed. On top of that, perylene, which is the organic light-emitting layer 4, was spin-coded as a 5% toluene solution to give a film thickness of 1000 layers. Thereafter, a magnesium electrode 6 was formed by a vapor deposition method. Further, on this electrode, a layer in which an oxygen adsorbent (Ageless manufactured by Mitsubishi Gas Chemical Co., Ltd. was used, but not limited to this) dispersed in polyvinyl alcohol was formed as an oxygen adsorption layer 7.
その後この基板をアクリル樹脂でモール゛ド（８）した
。こうして得られた発光素子に６０Ｖの電界を印加した
ところ安定した発光が観測された０発光層の厚みは５０
０Ａ〜１μｍの間であればよい。This substrate was then molded (8) with acrylic resin. When an electric field of 60 V was applied to the light emitting device thus obtained, stable light emission was observed. The thickness of the light emitting layer was 50 V.
It may be between 0 A and 1 μm.
５００Å以下であると、電界を印加した際ショートする
可能性がある。１μｍ以上であると、印加電圧が高くな
り実用的でない、有機発光物質はナフタレン、アントラ
セン、テトラセン、ナフタセン、コロネン、ペリレン、
ビレン、テトラフェニルシクロペンタジェン、ペンタフ
ェニルシクロペンタジェン、キノリン、フェナンスレン
、ベンズアントラセン、クマリンなどの誘導体が利用で
きる。これらの物質を混合して用いることにより様々な
色調の発光を得ることができた。正孔注入層３はここに
示したもので無くとも発光層に正孔を注入できるもので
あればよい。また本実施例では電子注入Ｍ５を設けても
よく、フタロシアニン誘導体等、発光層に電子を注入で
きるものであれば利用できる。また本実施例では電荷注
入層を発光層と別に形成しているが、発光層中に混入し
ても同様の効果が得られる。If it is less than 500 Å, there is a possibility that a short circuit will occur when an electric field is applied. When it is 1 μm or more, the applied voltage becomes high and it is not practical.The organic light-emitting substances include naphthalene, anthracene, tetracene, naphthacene, coronene, perylene,
Derivatives such as birene, tetraphenylcyclopentadiene, pentaphenylcyclopentadiene, quinoline, phenanthrene, benzanthracene, and coumarin can be used. By using a mixture of these substances, it was possible to obtain luminescence of various colors. The hole injection layer 3 does not need to be the one shown here as long as it can inject holes into the light emitting layer. Further, in this embodiment, an electron injection M5 may be provided, and any material that can inject electrons into the light emitting layer, such as a phthalocyanine derivative, can be used. Furthermore, although the charge injection layer is formed separately from the light emitting layer in this embodiment, the same effect can be obtained even if it is mixed into the light emitting layer.
［発明の効果コ
以上述べたように本発明によれば、脱酸素雰囲気下で発
光層を形成しあるいは発光層近傍に酸素吸着層を形成す
ることにより、発光層の劣化の起きにくい、長寿命の発
光素子を得ることができるようになった０本発明を利用
すれば信頼性の高い表示装置を製作できるであろう。[Effects of the Invention] As described above, according to the present invention, by forming the luminescent layer in a deoxidized atmosphere or by forming an oxygen adsorption layer in the vicinity of the luminescent layer, the luminescent layer is less prone to deterioration and has a long life. By utilizing the present invention, which has made it possible to obtain a light-emitting element of 0, it will be possible to manufacture a highly reliable display device.
第１図は、本発明の１実施例の基本構成を表す発光素子
の断面図である。
第２図は従来の発光素子の構成を示す断面図である。
■・・・基板
２・・・電極
３・・・正孔注入層
４・・・発光層
５・・・電子注入層
６・・・電極
７・・・酸素吸着層
８・・・樹脂モール
ド
以
上FIG. 1 is a sectional view of a light emitting device showing the basic configuration of one embodiment of the present invention. FIG. 2 is a sectional view showing the structure of a conventional light emitting element. ■...Substrate 2...Electrode 3...Hole injection layer 4...Light emitting layer 5...Electron injection layer 6...Electrode 7...Oxygen adsorption layer 8...Resin mold or higher
Claims (5)
光層を脱酸素雰囲気に保持することを特徴とする発光素
子。(1) A light-emitting element using an organic light-emitting substance, characterized in that the organic light-emitting layer is maintained in an oxygen-free atmosphere.
層の少なくともどちらか１方を有することを特徴とする
請求項１記載の発光素子。(2) The light emitting device according to claim 1, further comprising at least one of a hole injection layer and an electron injection layer near the organic light emitting layer.
て脱酸素雰囲気中で有機発光層を形成することを特徴と
する請求項１または請求項２記載の発光素子。(3) The light-emitting device according to claim 1 or 2, wherein the method for maintaining the light-emitting device in an oxygen-free atmosphere includes forming an organic light-emitting layer in an oxygen-free atmosphere.
て有機発光層近傍に酸素吸着層を形成したことを特徴と
する請求項１、請求項２または請求項３記載の発光素子
。(4) The light emitting device according to claim 1, 2 or 3, wherein an oxygen adsorption layer is formed in the vicinity of the organic light emitting layer as a method of maintaining the light emitting device in an oxygen-free atmosphere.
テトラセン、ナフタセン、コロネン、ペリレン、ビレン
、テトラフエニルシクロペンタジエン、ペンタフエニル
シクロペンタジエン、キノリン、フェナンスレン、ベン
ズアントラセン、クマリンなどの誘導体化合物であるこ
とを特徴とする請求項１、請求項２、請求項３または請
求項４記載の発光素子。(5) The organic light-emitting substance is naphthalene, anthracene,
Claims 1, 2, and 2, characterized in that the compound is a derivative compound of tetracene, naphthacene, coronene, perylene, bilene, tetraphenylcyclopentadiene, pentaphenylcyclopentadiene, quinoline, phenanthrene, benzanthracene, coumarin, etc. The light emitting device according to claim 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1172329A JPH0337991A (en) | 1989-07-04 | 1989-07-04 | Luminous element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1172329A JPH0337991A (en) | 1989-07-04 | 1989-07-04 | Luminous element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0337991A true JPH0337991A (en) | 1991-02-19 |
Family
ID=15939888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1172329A Pending JPH0337991A (en) | 1989-07-04 | 1989-07-04 | Luminous element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0337991A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653914A (en) * | 1992-12-18 | 1997-08-05 | Cambridge Display Technology Limited | Electroluminescent device comprising a chromophoric polymeric composition |
| US6611098B2 (en) | 2000-02-04 | 2003-08-26 | Nec Corporation | Hermetic encapsulation package and method of fabrication thereof |
| WO2004031247A1 (en) * | 2002-09-30 | 2004-04-15 | Infineon Technologies Ag | Pentaarylcyclopentadienyl units as active units in resistive memory elements |
| US7417247B2 (en) | 2002-09-30 | 2008-08-26 | Infineon Technologies, Ag | Pentaarylcyclopentadienyl units as active units in resistive memory elements |
| WO2011027815A1 (en) | 2009-09-04 | 2011-03-10 | 株式会社スリーボンド | Organic el element sealing member |
| JP2011100743A (en) * | 2011-01-10 | 2011-05-19 | Semiconductor Energy Lab Co Ltd | Electronic device |
| JP2013179089A (en) * | 2013-06-20 | 2013-09-09 | Semiconductor Energy Lab Co Ltd | El display device |
| US8828500B2 (en) | 2008-11-28 | 2014-09-09 | Three Bond Co., Ltd. | Photocurable resin composition for sealing organic EL device |
-
1989
- 1989-07-04 JP JP1172329A patent/JPH0337991A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5653914A (en) * | 1992-12-18 | 1997-08-05 | Cambridge Display Technology Limited | Electroluminescent device comprising a chromophoric polymeric composition |
| US6611098B2 (en) | 2000-02-04 | 2003-08-26 | Nec Corporation | Hermetic encapsulation package and method of fabrication thereof |
| WO2004031247A1 (en) * | 2002-09-30 | 2004-04-15 | Infineon Technologies Ag | Pentaarylcyclopentadienyl units as active units in resistive memory elements |
| US7417247B2 (en) | 2002-09-30 | 2008-08-26 | Infineon Technologies, Ag | Pentaarylcyclopentadienyl units as active units in resistive memory elements |
| US8828500B2 (en) | 2008-11-28 | 2014-09-09 | Three Bond Co., Ltd. | Photocurable resin composition for sealing organic EL device |
| WO2011027815A1 (en) | 2009-09-04 | 2011-03-10 | 株式会社スリーボンド | Organic el element sealing member |
| JP2011100743A (en) * | 2011-01-10 | 2011-05-19 | Semiconductor Energy Lab Co Ltd | Electronic device |
| JP2013179089A (en) * | 2013-06-20 | 2013-09-09 | Semiconductor Energy Lab Co Ltd | El display device |
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