JPH06172665A - Binder resin having high dielectric constant and dispersion-type el element produced by using the binder resin - Google Patents
Binder resin having high dielectric constant and dispersion-type el element produced by using the binder resinInfo
- Publication number
- JPH06172665A JPH06172665A JP4350970A JP35097092A JPH06172665A JP H06172665 A JPH06172665 A JP H06172665A JP 4350970 A JP4350970 A JP 4350970A JP 35097092 A JP35097092 A JP 35097092A JP H06172665 A JPH06172665 A JP H06172665A
- Authority
- JP
- Japan
- Prior art keywords
- cyanoethylated
- binder resin
- dielectric constant
- dielectric
- high dielectric
- 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.)
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は高誘電率結合剤樹脂お
よびこの高誘電率結合剤樹を用いた分散型ＥＬ素子に関
し、さらに詳しくは、分散型ＥＬ素子用として好適な接
着性に優れた高誘電率結合剤樹脂およびこの高誘電率結
合剤樹を用いた耐久性に優れた分散型ＥＬ素子に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-dielectric-constant binder resin and a dispersion-type EL device using this high-dielectric-constant binder resin. More specifically, it has excellent adhesiveness suitable for a dispersion-type EL device. The present invention relates to a high-dielectric-constant binder resin and a dispersion-type EL device excellent in durability using the high-dielectric-constant binder resin.
【０００２】[0002]
【従来の技術】分散型ＥＬ素子の発光層や誘電層に使用
される高誘電率結合剤樹脂は、通常、高誘電率化を可能
とするシアノエチル基を有する結合剤樹脂が用いられて
おり、たとえば、シアノエチル化セルロ−ス、シアノエ
チル化プルラン、シアノエチル化ポリビニルアルコ−ル
などが従来から使用されている。（特開昭５６−６９７
９６号、特開昭５９−１９４３９４号、特開昭６３−５
１０９２号）2. Description of the Related Art As a high dielectric constant binder resin used for a light emitting layer or a dielectric layer of a dispersion type EL device, a binder resin having a cyanoethyl group capable of achieving a high dielectric constant is usually used. For example, cyanoethylated cellulose, cyanoethylated pullulan, cyanoethylated polyvinyl alcohol and the like have been conventionally used. (JP-A-56-697
96, JP-A-59-194394, JP-A-63-5.
No. 1092)
【０００３】[0003]
【発明が解決しようとする課題】ところが、これら従来
のシアノエチル基を有する高誘電率結合剤樹脂を分散型
ＥＬ素子の発光層や誘電層に用いるときは、シアノエチ
ル基の透明電極および背面電極に対する接着性が極めて
弱いため、発光層や誘電層の透明電極および背面電極に
対する接着性が悪く、接着性を改善するためこの種の高
誘電率結合剤樹脂の接着性を左右する水酸基のシアノエ
チル化を少なくすると、誘電率が低下して分散型ＥＬ素
子の輝度が低下してしまうという難点があり、高誘電率
を維持しながら透明電極や背面電極に対する接着性を改
善することができない。However, when these conventional high-dielectric-constant binder resins having a cyanoethyl group are used in the light-emitting layer or the dielectric layer of a dispersion-type EL device, adhesion of the cyanoethyl group to a transparent electrode and a back electrode is required. Since the adhesiveness is extremely weak, the adhesiveness of the light emitting layer and the dielectric layer to the transparent electrode and the back electrode is poor, and to improve the adhesiveness, the cyanoethylation of hydroxyl groups that influences the adhesiveness of this type of high dielectric constant binder resin is reduced. Then, there is a drawback that the dielectric constant is lowered and the brightness of the dispersion type EL element is lowered, and the adhesiveness to the transparent electrode or the back electrode cannot be improved while maintaining the high dielectric constant.
【０００４】[0004]
【課題を解決するための手段】この発明はかかる現状に
鑑み種々検討を行った結果なされたもので、従来から使
用されているシアノエチル化プルラン、シアノエチル化
セルロ−ス、シアノエチル化ヒドロキシセルロ−ス、シ
アノエチル化サッカロ−ス、シアノエチル化ポリビニル
アルコ−ル、シアノエチル化フェノキシ樹脂などのシア
ノエチル化高誘電率結合剤樹脂中に、カルボン酸、カル
ボン酸金属塩、スルホン酸金属塩、リン酸エステルから
選ばれる少なくとも一種の官能基を含有させ、かつ誘電
率を１０以上にすることによって、この高誘電率結合剤
樹脂を用いて得られる分散型ＥＬ素子の発光層や誘電層
の高誘電率を維持しながら、透明電極および背面電極に
対する接着性を充分に向上させ、分散型ＥＬ素子の輝度
を低下させずに耐久性を充分に向上させたものである。SUMMARY OF THE INVENTION The present invention has been made as a result of various studies in view of the present circumstances, and has been conventionally used. Cyanoethylated pullulan, cyanoethylated cellulose, cyanoethylated hydroxycellulose, At least a carboxylic acid, a carboxylic acid metal salt, a sulfonic acid metal salt, or a phosphoric acid ester in a cyanoethylated high-dielectric-constant binder resin such as cyanoethylated saccharose, cyanoethylated polyvinyl alcohol, or cyanoethylated phenoxy resin. By containing one kind of functional group and having a dielectric constant of 10 or more, while maintaining the high dielectric constant of the light emitting layer or the dielectric layer of the dispersion type EL device obtained by using this high dielectric constant binder resin, Adhesiveness to the transparent electrode and the back electrode is sufficiently improved, and the resistance of the dispersion type EL element is not reduced. It is obtained sufficiently improved sexual.
【０００５】この発明において、シアノエチル化高誘電
率結合剤樹脂中に含有させるカルボン酸、カルボン酸金
属塩、スルホン酸金属塩、リン酸エステル等の官能基
は、水酸基より極性が強く、優れた接着性を有する。し
かして、シアノエチル化高誘電率結合剤樹脂中にこれら
の官能基を少なくとも一種含有させた高誘電率結合剤樹
脂は、接着性に優れ、分散型ＥＬ素子の発光層や誘電層
に使用すると、透明電極や背面電極に対する接着性が充
分に向上される。In the present invention, the functional groups such as carboxylic acid, carboxylic acid metal salt, sulfonic acid metal salt and phosphoric acid ester contained in the cyanoethylated high dielectric constant binder resin have stronger polarity than hydroxyl group and have excellent adhesion. Have sex. Therefore, the high dielectric constant binder resin containing at least one of these functional groups in the cyanoethylated high dielectric constant binder resin has excellent adhesiveness, and when used in the light emitting layer or the dielectric layer of the dispersion type EL device, Adhesion to the transparent electrode and the back electrode is sufficiently improved.
【０００６】また、これらの官能基は、シアノエチル化
高誘電率結合剤樹脂中の水酸基に比し、極性が強くて接
着性に優れるため、その分だけシアノエチル基を多くす
ることができ、容易に誘電率を１０以上にすることがで
きる。Further, these functional groups have a stronger polarity and excellent adhesiveness as compared with the hydroxyl groups in the cyanoethylated high-dielectric-constant binder resin, so that the number of cyanoethyl groups can be increased correspondingly and easily. The dielectric constant can be 10 or more.
【０００７】従って、シアノエチル化高誘電率結合剤樹
脂中にこれらの官能基を少なくとも１種含有させた誘電
率が１０以上の高誘電率結合剤樹脂を用いて、分散型Ｅ
Ｌ素子の発光層および誘電層を形成すると、高誘電率が
低下されることなく透明電極や背面電極に対する接着性
が向上され、高輝度で耐久性に優れた分散型ＥＬ素子が
得られる。Therefore, a dispersion type E resin is prepared by using a high-dielectric-constant binder resin having a dielectric constant of 10 or more in which at least one of these functional groups is contained in a cyanoethylated high-dielectric-constant binder resin.
When the light emitting layer and the dielectric layer of the L element are formed, the adhesion to the transparent electrode or the back electrode is improved without lowering the high dielectric constant, and a dispersion type EL element having high brightness and excellent durability can be obtained.
【０００８】このような、カルボン酸、カルボン酸金属
塩、スルホン酸金属塩、リン酸エステル等の官能基は、
シアノエチル化高誘電率結合剤樹脂中に存在するＯＨ基
をリン酸エステル含有アクリルモノマ−、スルホン酸エ
ステル含有アクリルモノマ−等と反応させてその分子中
に導入される。Functional groups such as carboxylic acid, carboxylic acid metal salt, sulfonic acid metal salt and phosphoric acid ester are
The OH group present in the cyanoethylated high-dielectric-constant binder resin is introduced into the molecule by reacting with a phosphoric acid ester-containing acrylic monomer, a sulfonic acid ester-containing acrylic monomer, or the like.
【０００９】このようにして導入される官能基のシアノ
エチル化高誘電率結合剤樹脂中における含有量は、１０
以上の誘電率にして誘電率の低下を充分に防止し、接着
性を充分に向上させるため、シアノエチル化高誘電率結
合剤樹脂に対して 0.1〜１００重量％の範囲内にするの
が好ましい。The content of the functional group thus introduced in the cyanoethylated high dielectric constant binder resin is 10
In order to sufficiently prevent the decrease of the dielectric constant and to improve the adhesiveness by the above-mentioned dielectric constant, it is preferable to set it within the range of 0.1 to 100% by weight with respect to the cyanoethylated high dielectric constant binder resin.
【００１０】このような、カルボン酸、カルボン酸金属
塩、スルホン酸金属塩、リン酸エステルから選ばれる少
なくとも１種の官能基を含有させるシアノエチル化高誘
電率結合剤樹脂としては、シアノエチル化プルラン、シ
アノエチル化セルロ−ス、シアノエチル化ヒドロキシセ
ルロ−ス、シアノエチル化サッカロ−ス、シアノエチル
化ポリビニルアルコ−ル、シアノエチル化フェノキシ樹
脂などが好適なものとして使用され、これらの官能基を
含む誘電率が１０以上の高誘電率結合剤樹脂は、単独で
使用される他、通常のシアノエチル化高誘電率結合剤樹
脂、たとえば、シアノエチル化プルラン、シアノエチル
化セルロ−ス、シアノエチル化ヒドロキシセルロ−ス、
シアノエチル化サッカロ−ス、シアノエチル化ポリビニ
ルアルコ−ル、シアノエチル化フェノキシ樹脂などの官
能基を持たないものとも併用される。The cyanoethylated high dielectric constant binder resin containing at least one functional group selected from carboxylic acid, carboxylic acid metal salt, sulfonic acid metal salt and phosphoric acid ester is cyanoethylated pullulan, Cyanoethylated cellulose, cyanoethylated hydroxycellulose, cyanoethylated saccharose, cyanoethylated polyvinyl alcohol, cyanoethylated phenoxy resin and the like are preferably used, and the dielectric constant containing these functional groups is 10 or more. The high dielectric constant binder resin of, in addition to being used alone, is a usual cyanoethylated high dielectric constant binder resin, for example, cyanoethylated pullulan, cyanoethylated cellulose, cyanoethylated hydroxycellulose,
It is also used in combination with those having no functional group such as cyanoethylated saccharose, cyanoethylated polyvinyl alcohol, and cyanoethylated phenoxy resin.
【００１１】このように、カルボン酸、カルボン酸金属
塩、スルホン酸金属塩、リン酸エステルから選ばれる少
なくとも１種の官能基を含有する誘電率が１０以上の高
誘電率結合剤樹脂を、発光層および誘電層において使用
する分散型ＥＬ素子の形成は、たとえば、図１に示すよ
うに透明導電性ガラス板１上のインジウム−スズ酸化物
などからなる透明電極２上に、蛍光体と前記の官能基を
含有する誘電率が１０以上の高誘電率結合剤樹脂と有機
溶剤とを混合分散して調製された発光塗料を塗布、乾燥
して発光層３を形成し、次いで、チタン酸バリウムなど
の高誘電率無機物と前記の官能基を含有する誘電率が１
０以上の高誘電率結合剤樹脂と有機溶剤とを混合分散し
て調製された誘電塗料を、発光層３上に塗布、乾燥して
誘電層４を形成した後、さらにこの誘電層４上にアルミ
ニウム等からなる背面電極５を形成し、これらをガラス
板６とエポキシ樹脂などからなる封止剤７で封止して行
われる。そして、図１に示すような分散型ＥＬ素子Ａが
形成される。なお、８は交流電源で、分散型ＥＬ素子Ａ
は、透明電極２と背面電極５が交流電源８に接続されて
駆動される。As described above, the high-dielectric-constant binder resin having a dielectric constant of 10 or more and containing at least one functional group selected from carboxylic acid, carboxylic acid metal salt, sulfonic acid metal salt, and phosphoric acid ester emits light. The dispersion type EL element used in the layer and the dielectric layer is formed, for example, as shown in FIG. 1, on the transparent electrode 2 made of indium-tin oxide or the like on the transparent conductive glass plate 1 and the phosphor and the above-mentioned material. A luminescent coating material prepared by mixing and dispersing a high dielectric constant binder resin containing a functional group and having a dielectric constant of 10 or more and an organic solvent is applied and dried to form a luminescent layer 3, and then barium titanate or the like. The high dielectric constant inorganic substance and the above-mentioned functional group-containing dielectric constant are 1
A dielectric coating material prepared by mixing and dispersing 0 or more high-dielectric-constant binder resin and an organic solvent is applied onto the light emitting layer 3 and dried to form a dielectric layer 4, and then on the dielectric layer 4. The back electrode 5 made of aluminum or the like is formed, and these are sealed with a glass plate 6 and a sealant 7 made of epoxy resin or the like. Then, the dispersion type EL element A as shown in FIG. 1 is formed. In addition, 8 is an AC power supply, and is a dispersion type EL element A
Is driven by connecting the transparent electrode 2 and the back electrode 5 to an AC power supply 8.
【００１２】ここで、透明電極２は、従来の分散型ＥＬ
素子の透明電極と同様にして形成され、例えば、インジ
ウム−スズ酸化物、Ｉｎ2 Ｏ3 、ＳｎＯ2 、Ａｕなどか
らなる透明電極２が、電子ビ−ム蒸着法やスパッタリン
グ法によって形成される。Here, the transparent electrode 2 is a conventional dispersion type EL.
It is formed in the same manner as the transparent electrode of the element, for example, indium - tin oxide, an In 2 O 3, SnO 2, Au transparent electrode 2 made of the, electron beam - is formed by a beam vapor deposition or sputtering.
【００１３】また、発光層３で使用される蛍光体として
は、たとえば、ＺｎＳ、ＺｎＳｅ、ＺｎＳＳｅ、Ｃｄ
Ｓ、ＣｄＳｅ、ＣｄＳＳｅなどからなる母材に、Ｃｕ、
Ｃｌ、Ｂｒ、Ｍｎなどの１種または２種以上の元素を発
光中心として付活したものが好適なものとして使用さ
れ、さらに、誘電層４で使用される高誘電率無機化合物
としては、たとえば、チタン酸バリウム、チタン酸鉛、
二酸化チタンなどが好ましく使用される。The phosphors used in the light emitting layer 3 include, for example, ZnS, ZnSe, ZnSSe, Cd.
Cu, on a base material composed of S, CdSe, CdSSe, etc.
Those obtained by activating one or more elements such as Cl, Br, and Mn as an emission center are preferably used, and examples of the high dielectric constant inorganic compound used in the dielectric layer 4 include: Barium titanate, lead titanate,
Titanium dioxide or the like is preferably used.
【００１４】また、誘電層４上に形成される背面電極５
は、従来の分散型ＥＬ素子の背面電極と同様にして形成
され、たとえば、Ａｌ、Ａｕ、Ｍｏ、Ｃｒ等の金属電
極、さらにＩｎ2 Ｏ3 、ＳｎＯ2 などの金属酸化物電極
が、真空蒸着法や抵抗加熱法によって形成される。A back electrode 5 formed on the dielectric layer 4
Is formed in the same manner as the back electrode of the conventional dispersion type EL device. For example, metal electrodes such as Al, Au, Mo and Cr, and metal oxide electrodes such as In 2 O 3 and SnO 2 are vacuum-deposited. Method or resistance heating method.
【００１５】さらに、封止剤７としては、エポキシ樹
脂、３フッ化塩化エチレンなどが使用される。Further, as the sealant 7, epoxy resin, trifluoroethylene chloride, or the like is used.
【００１６】[0016]
【実施例】次に、この発明の実施例について説明する。 実施例１ ＺｎＳ：Ｃｕ，Ｃｌからなる蛍光体３０重量部を、リン
酸エステル化シアノエチル化プルラン１０重量部および
ジメチルホルムアミド１００重量部とともに混合分散し
て発光塗料を調製し、この発光塗料を図１に示すように
厚さ 1.1ｍｍの透明導電性ガラス板１上に形成したイン
ジウム−スズ酸化物からなる透明電極２上に塗布し、１
００℃で２時間乾燥して、厚さ５０μｍの発光層３を形
成した。EXAMPLES Next, examples of the present invention will be described. Example 1 30 parts by weight of a phosphor made of ZnS: Cu, Cl was mixed and dispersed with 10 parts by weight of phosphorylated cyanoethylated pullulan and 100 parts by weight of dimethylformamide to prepare a luminescent paint. As shown in Fig. 1, a transparent conductive glass plate 1 having a thickness of 1.1 mm is coated on a transparent electrode 2 made of indium-tin oxide, and 1
It was dried at 00 ° C. for 2 hours to form a light emitting layer 3 having a thickness of 50 μm.
【００１７】次いで、チタン酸バリウム５０重量部を、
リン酸エステル化シアノエチル化プルラン１０重量部お
よびジメチルホルムアミド１００重量部とともに混合分
散して誘電塗料を調製し、この誘電塗料を発光層３上に
塗布し、１００℃で４時間乾燥して厚さ２０μｍの誘電
層４を形成した。Then, 50 parts by weight of barium titanate are added,
A dielectric paint was prepared by mixing and dispersing with 10 parts by weight of phosphorylated cyanoethylated pullulan and 100 parts by weight of dimethylformamide, and the dielectric paint was applied onto the light emitting layer 3 and dried at 100 ° C. for 4 hours to have a thickness of 20 μm. Of the dielectric layer 4 was formed.
【００１８】しかる後、この誘電層４上にアルミニウム
を蒸着して、厚さ５００ｎｍのアルミニウムからなる背
面電極５を形成し、これらをガラス板６とエポキシ樹脂
からなる封止剤７とで封止して、図１に示すような分散
型ＥＬ素子Ａを作製した。Thereafter, aluminum is vapor-deposited on the dielectric layer 4 to form a back electrode 5 made of aluminum having a thickness of 500 nm, which is sealed with a glass plate 6 and a sealing agent 7 made of an epoxy resin. Then, a dispersion type EL element A as shown in FIG. 1 was produced.
【００１９】また、アセトン５０重量部とジメチルホル
ムアミド５０重量部とを混合した混合溶液に、リン酸エ
ステル化シアノエチル化プルラン３０重量部を溶解して
フィルム形成用塗料を調製し、これを厚さ 1.1ｍｍの透
明導電性ガラス板上に形成したインジウム−スズ酸化物
からなる透明電極上に塗布し、１１０℃で６時間乾燥し
て、厚さ４０μｍのフィルムを形成した。Further, 30 parts by weight of phosphoric acid esterified cyanoethylated pullulan was dissolved in a mixed solution obtained by mixing 50 parts by weight of acetone and 50 parts by weight of dimethylformamide to prepare a film-forming coating material. It was applied onto a transparent electrode made of indium-tin oxide formed on a transparent conductive glass plate having a thickness of mm and dried at 110 ° C. for 6 hours to form a film having a thickness of 40 μm.
【００２０】実施例２〜６，比較例１および２ 実施例１における発光塗料、誘電塗料、フィルム形成用
塗料の組成において、リン酸エステル化シアノエチル化
プルランに代えて下記表１に示す高誘電率結合剤樹脂を
同量使用した以外は、実施例１と同様にして分散型ＥＬ
素子を作製し、フィルムを形成した。Examples 2 to 6, Comparative Examples 1 and 2 In the composition of the light emitting coating material, the dielectric coating material and the film forming coating material of Example 1, instead of the phosphoric acid esterified cyanoethylated pullulan, the high dielectric constant shown in Table 1 below was used. Dispersion type EL similar to Example 1 except having used the same amount of binder resin.
A device was prepared and a film was formed.
【００２１】 [0021]
【００２２】各実施例および比較例で得られた分散型Ｅ
Ｌ素子の駆動前と、透明電極２と背面電極５を交流電源
８に接続し、１００Ｖ、４００Ｈｚのパルス波で、２０
℃、６０％ＲＨの条件下に１０００時間駆動後の、発光
層３と透明電極２間および誘電層４と背面電極５間の剥
離の有無を調べた。また、各実施例および比較例で得ら
れたフィルムに、１ｍｍ四方の１００個の切れ目を碁盤
目状に入れ、この上から接着テ−プを密着させた後、引
き剥がす動作を５回繰り返し行って、剥離されずに残っ
た切れ目の数を測定し、碁盤目テストを行った。下記表
２はその結果である。Dispersion type E obtained in each example and comparative example
Before driving the L element, the transparent electrode 2 and the back electrode 5 were connected to an AC power source 8, and a pulse wave of 100 V and 400 Hz
The presence or absence of peeling between the light emitting layer 3 and the transparent electrode 2 and between the dielectric layer 4 and the back electrode 5 after 1000 hours of driving at 60 ° C. and 60% RH was examined. In addition, 100 cuts of 1 mm square were placed in a grid pattern on the films obtained in each of the examples and comparative examples, and an adhesive tape was adhered on the cuts, and the peeling operation was repeated 5 times. Then, the number of cuts remaining without peeling was measured, and a cross-cut test was performed. Table 2 below shows the results.
【００２３】 [0023]
【００２４】[0024]
【発明の効果】上記表２から明らかなように、この発明
で得られた分散型ＥＬ素子（実施例１〜６）は、従来の
分散型ＥＬ素子（比較例１および２）に比し、いずれも
駆動前後における発光層と透明電極間および誘電層と背
面電極の剥離がなく、また、碁盤目テストが良好で碁盤
目状にしたフィルムの剥離もなく、このことからこの発
明で得られる高誘電率結合剤樹脂は接着性に優れ、ま
た、この高誘電率結合剤樹を用いて得られるこの発明の
分散型ＥＬ素子は、発光層および誘電層の透明電極およ
び背面電極に対する接着性が良好で、耐久性に優れてい
ることがわかる。As is clear from Table 2 above, the dispersion-type EL devices (Examples 1 to 6) obtained by the present invention have the following properties compared with the conventional dispersion-type EL devices (Comparative Examples 1 and 2). There was no peeling between the light emitting layer and the transparent electrode and between the dielectric layer and the back electrode before and after driving, and there was no cross-cut test, and no peeling of the cross-cut film. The dielectric constant binder resin has excellent adhesiveness, and the dispersion type EL device of the present invention obtained by using this high dielectric constant binder resin has good adhesiveness to the transparent electrode and the back electrode of the light emitting layer and the dielectric layer. It can be seen that the durability is excellent.
【図１】この発明の高誘電率結合剤樹脂を使用して得ら
れる分散型ＥＬ素子の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of a dispersion type EL device obtained by using a high dielectric constant binder resin of the present invention.
１ 透明導電性ガラス板 ２ 透明電極 ３ 発光層 ４ 誘電層 ５ 背面電極 Ａ 分散型ＥＬ素子 1 Transparent Conductive Glass Plate 2 Transparent Electrode 3 Light Emitting Layer 4 Dielectric Layer 5 Back Electrode A Dispersion EL Element
Claims (4)
に、カルボン酸、カルボン酸金属塩、スルホン酸金属
塩、リン酸エステルから選ばれる少なくとも一種の官能
基を含有させた誘電率が１０以上の高誘電率結合剤樹脂1. A cyanoethylated high dielectric constant binder resin containing at least one functional group selected from a carboxylic acid, a carboxylic acid metal salt, a sulfonic acid metal salt and a phosphoric acid ester, and having a dielectric constant of 10 or more. High dielectric constant binder resin
シアノエチル化プルラン、シアノエチル化セルロ−ス、
シアノエチル化ヒドロキシセルロ−ス、シアノエチル化
サッカロ−ス、シアノエチル化ポリビニルアルコ−ル、
シアノエチル化フェノキシ樹脂から選ばれるシアノエチ
ル化高誘電率結合剤樹脂である請求項１記載の高誘電率
結合剤樹脂2. A cyanoethylated high dielectric constant binder resin comprising:
Cyanoethylated pullulan, cyanoethylated cellulose,
Cyanoethylated hydroxycellulose, cyanoethylated saccharose, cyanoethylated polyvinyl alcohol,
The high dielectric constant binder resin according to claim 1, which is a cyanoethylated high dielectric constant binder resin selected from cyanoethylated phenoxy resins.
電極間に、発光層および誘電層を設けた分散型ＥＬ素子
において、シアノエチル化高誘電率結合剤樹脂中に、カ
ルボン酸、カルボン酸金属塩、スルホン酸金属塩、リン
酸エステルから選ばれる少なくとも一種の官能基を含有
させた誘電率が１０以上の高誘電率結合剤樹脂を、発光
層および誘電層に用いたことを特徴とする分散型ＥＬ素
子3. A dispersion type EL device having a light emitting layer and a dielectric layer between a pair of electrodes, at least one of which is a transparent electrode, wherein a carboxylic acid and a metal salt of a carboxylic acid are contained in a cyanoethylated high dielectric constant binder resin. Dispersion type characterized in that a high dielectric constant binder resin having a dielectric constant of 10 or more containing at least one functional group selected from the group consisting of sulfonic acid metal salt and phosphoric acid ester is used for the light emitting layer and the dielectric layer. EL element
シアノエチル化プルラン、シアノエチル化セルロ−ス、
シアノエチル化ヒドロキシセルロ−ス、シアノエチル化
サッカロ−ス、シアノエチル化ポリビニルアルコ−ル、
シアノエチル化フェノキシ樹脂から選ばれるシアノエチ
ル化高誘電率結合剤樹脂である請求項３記載の分散型Ｅ
Ｌ素子4. A cyanoethylated high dielectric constant binder resin comprising:
Cyanoethylated pullulan, cyanoethylated cellulose,
Cyanoethylated hydroxycellulose, cyanoethylated saccharose, cyanoethylated polyvinyl alcohol,
The dispersion type E according to claim 3, which is a cyanoethylated high-k binder resin selected from cyanoethylated phenoxy resins.
L element
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4350970A JPH06172665A (en) | 1992-12-05 | 1992-12-05 | Binder resin having high dielectric constant and dispersion-type el element produced by using the binder resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4350970A JPH06172665A (en) | 1992-12-05 | 1992-12-05 | Binder resin having high dielectric constant and dispersion-type el element produced by using the binder resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06172665A true JPH06172665A (en) | 1994-06-21 |
Family
ID=18414157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4350970A Withdrawn JPH06172665A (en) | 1992-12-05 | 1992-12-05 | Binder resin having high dielectric constant and dispersion-type el element produced by using the binder resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06172665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7285339B2 (en) | 1997-11-17 | 2007-10-23 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
-
1992
- 1992-12-05 JP JP4350970A patent/JPH06172665A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7285339B2 (en) | 1997-11-17 | 2007-10-23 | Lg Electronics Inc. | Organic electroluminescent device with improved long-term stability |
| US7638794B2 (en) * | 1997-11-17 | 2009-12-29 | Lg Electronics Inc. | Organoelectroluminescent device having a substrate, a negative electrode, an organic electroluminescent layer, a buffer layer containing an adhesion-increasing porphyrinic compound and a cathode electrode |
| US7847286B2 (en) | 1997-11-17 | 2010-12-07 | Lg Electronics Inc. | Semiconductor device |
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|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
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