JPH0434893A - Phosphor for organic dispersion type el - Google Patents
Phosphor for organic dispersion type elInfo
- Publication number
- JPH0434893A JPH0434893A JP2140232A JP14023290A JPH0434893A JP H0434893 A JPH0434893 A JP H0434893A JP 2140232 A JP2140232 A JP 2140232A JP 14023290 A JP14023290 A JP 14023290A JP H0434893 A JPH0434893 A JP H0434893A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- resin
- weight
- solvent
- 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.)
- Pending
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000006185 dispersion Substances 0.000 title claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 37
- 239000011347 resin Substances 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000012190 activator Substances 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 9
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002775 capsule Substances 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 239000011572 manganese Substances 0.000 claims abstract description 4
- -1 cyanoethylene saccharose Chemical compound 0.000 claims abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract description 10
- 239000002904 solvent Substances 0.000 abstract description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000012454 non-polar solvent Substances 0.000 abstract description 2
- 230000006698 induction Effects 0.000 abstract 2
- 229930006000 Sucrose Natural products 0.000 abstract 1
- 235000013681 dietary sucrose Nutrition 0.000 abstract 1
- 229960004793 sucrose Drugs 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 150000003445 sucroses Chemical class 0.000 description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 2
- 229910002113 barium titanate Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、液状の高誘電樹脂を蛍光体に付活固定して優
れた輝度を有する有機分散型ＥＬ用蛍光体に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an organically dispersed EL phosphor having excellent brightness, in which a liquid high dielectric resin is activated and fixed to the phosphor.
有機分散型ＥＬ用の蛍光体は、粒径約３０μｍのＺｎＳ
粒子で、これに銅、マンガン等の活性剤と塩素、臭素な
どの賦活剤ｔドープしたものが一般である。The phosphor for organic dispersed EL is ZnS with a particle size of approximately 30 μm.
Generally, particles are doped with an activator such as copper or manganese and an activator such as chlorine or bromine.
有機分散型ＥＬパネルは、第２図にその断面を示すよう
に、透明導電性電′＆４と背面電＆７０間に、高誘電樹
脂中に蛍光体を分散した蛍光層５と高誘電樹脂中にチタ
ン酸バリウム等の高誘′ｔ＠に分散した絶縁層６を重ね
、その外ｉｌｌ防湿フィルム８で封止し、透明導電性電
極と背面！極間に電圧を印加すると蛍光層中の蛍光体が
発光する。As shown in the cross section of Fig. 2, the organic dispersion type EL panel has a fluorescent layer 5 in which phosphor is dispersed in a high dielectric resin and a fluorescent layer 5 in which a phosphor is dispersed in a high dielectric resin, between a transparent conductive electrode 4 and a back electrode 70. An insulating layer 6 dispersed in a high dielectric material such as barium titanate is layered, sealed with an illumination moisture-proof film 8, and a transparent conductive electrode is placed on the back! When a voltage is applied between the electrodes, the phosphor in the fluorescent layer emits light.
有機分散型ＥＬの駆動条件會一定にして輝度耐向上する
Ｋは、蛍光体全分散する誘電体を高誘電率のものとする
と良い。しかし、誘電率が３０以上の高誘を樹脂は殆ど
液状である。液中に分散した蛍光体はＥＬとして使用中
［凝集するために実用化は不可能である。液状の高誘を
樹脂を用いる例には、特公平１−２６１６０に示されて
いるようにゲル化剤全添加してゲル状とする方法がある
。In order to improve the brightness of the organic dispersion type EL under constant driving conditions, it is preferable to use a dielectric material with a high dielectric constant in which the phosphor is completely dispersed. However, most resins having a high dielectric constant of 30 or more are in a liquid state. The phosphor dispersed in the liquid is used as an EL (it is impossible to put it to practical use because it aggregates). An example of using a liquid high-density resin is a method of making a gel by adding all the gelling agent, as shown in Japanese Patent Publication No. 1-26160.
本発明は、液状の高誘電樹脂ｋｆ’ｔｆｆｉ固足する蛍
光体とその製造方法を提供することを目的とする。An object of the present invention is to provide a phosphor that adheres to liquid high dielectric resin kf'tffi and a method for manufacturing the same.
上記の目的を達成するために１本発明は、第１図に示す
ように、ＺｎＳ 程子に銅、マンガン等の活性剤と塩素
、臭素などの賦活剤會ドープした有機分散型ＥＬ用蛍光
体１に液状の高誘電樹脂２を付着し、その上に熱硬化性
樹脂３を被覆硬化した有機分散型ＥＬ用蛍光体でめる〇
液状の高誘電樹脂としては、シアノエチル化サッカロー
ス、シアノエチル化シュクロース、シアノエチル化ンル
ピトール等がある。In order to achieve the above object, the present invention is directed to an organic dispersion type EL phosphor 1 in which ZnS is doped with an activator such as copper and manganese and an activator such as chlorine and bromine, as shown in FIG. A liquid high dielectric resin 2 is attached to the resin, and a thermosetting resin 3 is coated on top of the cured organic dispersed EL phosphor.As the liquid high dielectric resin, cyanoethylated sucrose and cyanoethylated sucrose are used. , cyanoethylated lupitor, etc.
液状の高誘電樹脂中として蛍光体重量の０．１〜５重量
％をアセトン、ＭＥＫ、ＤＭＦなどの溶剤で６倍程度に
希釈したもの全蛍光体に含浸後、加熱して溶剤を揮散す
る。これに、熱硬化ｆ！ｌｌ：樹脂の蛍光体重量に対す
るＣＬＯ１〜１Ｍ量％ｔ６倍程度の非極性溶剤ベンゼン
、トルエン等で希釈した溶液上含浸し、加熱して溶剤上
揮散する〇上記の方法において、液状の高誘電樹脂が［
１１重ｉ１％以下では輝度が向上せず、５重量％以上で
あると蛍光体粒子が樹脂で凝集する０熱硬化性樹脂が［
ＬＯ１１ｊ１％未満であると液状の高誘電樹脂を被覆す
ることができず、ｌｋ：１％を越えると蛍光体粒子相互
の凝集がおこり硬化する。A liquid high dielectric resin containing 0.1 to 5% by weight of the phosphor is diluted to about 6 times with a solvent such as acetone, MEK, or DMF, and is impregnated into the entire phosphor, and then heated to volatilize the solvent. In addition to this, heat curing f! ll: CLO 1 to 1 M amount % relative to the fluorescent weight of the resin t Impregnated on a solution diluted with a non-polar solvent such as benzene or toluene in an amount of about 6 times, heated and volatilized on the solvent 〇 In the above method, liquid high dielectric resin but[
If the 11 weight i is less than 1%, the brightness will not improve, and if it is more than 5 wt%, the phosphor particles will aggregate with the resin.
If LO11j is less than 1%, the liquid high dielectric resin cannot be coated, and if lk exceeds 1%, phosphor particles will aggregate and harden.
使用する熱硬化性樹脂を；、水分硬化性のへキテメテレ
ンジイソシアネートが最も良いが、エポキシ樹脂に硬化
剤を添加したものも良い。As for the thermosetting resin to be used, moisture-curable hexitemethylene diisocyanate is best, but epoxy resin with a curing agent added may also be used.
本発明の蛍光体は、常法で処理したＺｎＳ ′Ｅ１子を
液状の高誘電樹脂で被い、さらにこれを熱硬化樹脂で被
覆するカプセル構造とする。The phosphor of the present invention has a capsule structure in which ZnS'E1 molecules treated by a conventional method are covered with a liquid high dielectric resin, and this is further covered with a thermosetting resin.
この構造を有するために、溶剤に溶解したシアノエチル
化セルロース系の高誘電樹脂中に分散しても、溶剤によ
って硬化樹脂が溶解しない結果として、蛍光体の周りに
高ａｍ樹脂が存在して蛍光体の発光が強いことになる。Due to this structure, even when dispersed in a cyanoethylated cellulose-based high dielectric resin dissolved in a solvent, the cured resin is not dissolved by the solvent, and as a result, a high am resin exists around the phosphor, causing the phosphor to This means that the light emission will be strong.
（実施例）
ＺｎＳ ｔｃ活性剤の銅と賦活剤の塩素、臭素ｔドー
プした有機分散型ＥＬ用蛍光体を原料とし、蛍光体重量
の２重量％のシアノエチル化すッカｑ−ス全６倍のアセ
トンで希釈した溶液上含浸し、１２０℃で３時間加熱乾
燥してアセトン會揮散する。(Example) Using an organic dispersed EL phosphor doped with copper as a ZnS tc activator, chlorine as an activator, and bromine as a raw material, cyanoethylated phosphor of 2% by weight of the phosphor weight was used as a total of 6 times the phosphor weight. It was impregnated with a solution diluted with acetone, dried by heating at 120° C. for 3 hours, and then volatilized with acetone.
サラに、蛍光体重量のα１重量％のヘキサメチレンジイ
ソシアネート′に６倍量のトルエンに希釈した溶液を含
浸し、１５０℃で３時間加熱乾燥してトルエン紮揮散し
て得た蛍光体を有機分散型ＥＬ用蛍光体とした。A phosphor was impregnated with a solution of hexamethylene diisocyanate, α1% by weight of the phosphor weight, diluted with 6 times the amount of toluene, and the resulting phosphor was organically dispersed by heating and drying at 150°C for 3 hours and volatilizing the toluene. It was used as a type EL phosphor.
（比較例１）
実施例と同じ原料蛍光体に同じ方法でシアノエチル化サ
ッカロース溶液を含浸しアセトンを揮散して得た蛍光体
を有機分散型ＥＬ用蛍光体とした。(Comparative Example 1) A phosphor obtained by impregnating the same raw material phosphor as in Example with a cyanoethylated sucrose solution and volatilizing acetone was used as an organically dispersed EL phosphor.
（比較例２）
実施例１で用いたと同じ原料蛍光体を有機分散型ＥＬ用
蛍光体とした。(Comparative Example 2) The same raw material phosphor used in Example 1 was used as an organic dispersed EL phosphor.
（試験）
実施例及び比較例１，２で得たＥＬ用蛍光体を溶剤ＤＭ
Ｆに溶解したシアノエチル化セルロース糸高誘電樹脂溶
液中に分散して蛍光層ペースト會作成した。別に溶剤Ｄ
Ｍ Ｆ Ｋ＃解したシア、ノエテル化セルロース糸高
誘電樹脂にチタン酸バリウムを分散した絶縁層ペースト
會作成した。Ｍ２図に示すように、背面電＆７に絶縁層
６として上記絶縁層ベースＩｔ−印刷又はコーターで塗
布した後。(Test) The EL phosphors obtained in Examples and Comparative Examples 1 and 2 were mixed with solvent DM.
The cyanoethylated cellulose threads dissolved in F were dispersed in a high dielectric resin solution to prepare a fluorescent layer paste. Solvent D separately
An insulating layer paste was prepared by dispersing barium titanate in a high dielectric resin of shear and noetherized cellulose yarns with M F K #. As shown in Figure M2, the above insulating layer bases as an insulating layer 6 on the backside electrode &7 - after printing or coating with a coater.
土肥３ａｌの蛍光層ペーストを印刷又はコーターで塗布
し、乾燥機中で光分にＤＭＦｉ揮散した。さらに透明導
電性電極４會重ね、３２ツ化塩化エチレンフイルムで全
体を封止して有機分散型ＥＬｉ作成した。上記の方法で
得た各ＥＬの特性を表１に示す。輝度は１００ｖ、４０
０ Ｈｚ 印加時の値。A phosphor layer paste of Doi 3al was applied by printing or using a coater, and DMFi was vaporized to light in a dryer. Furthermore, four transparent conductive electrodes were stacked and the entire structure was sealed with ethylene chloride film to produce an organic dispersion type ELi. Table 1 shows the characteristics of each EL obtained by the above method. Brightness is 100v, 40
Value when 0 Hz is applied.
寿命は２０℃、６０％ＲＨＫおける輝度半減時間である
。The lifespan is the luminance half-life at 20° C. and 60% RHK.
表１
〔発明の効果〕
実施例の結果から、蛍光体粒子上液状の高誘電樹脂で被
傍しさらに熱硬化樹脂によっ【カプセル構造とした粒子
が均等分散する蛍光層が高輝度を示すことは、比較例１
，２に比べて顕著であることが確認された。Table 1 [Effects of the invention] From the results of the examples, it was found that the fluorescent layer in which the particles were evenly dispersed in a capsule structure by covering the fluorescent particles with a liquid high dielectric resin and further by a thermosetting resin exhibited high brightness. is Comparative Example 1
, 2 was confirmed.
又１本発明蛍光体の寿命は従来法と変わらないことが明
らかである。It is also clear that the life of the phosphor of the present invention is the same as that of the conventional method.
第１図は本発明の有機分散型ＥＬ用蛍光体の構造説明図
、ｒＲ２図は一般の有機分散型ＥＬの構造図である０
１・・・・・・蛍光体、 ２・・・・・・液状高
誘電樹脂。
３・・・・・・熱硬化性樹脂、４・・・・・・透明４電
性電極。
５・・・・・・蛍光層、 ６・・・・・・絶縁層
、７・・・・・・背面電極、 ８・・・・・・防湿フ
ィルム。
第１図Fig. 1 is a structural explanatory diagram of the organic dispersion type EL phosphor of the present invention, and rR2 diagram is a structural diagram of a general organic dispersion type EL.・Liquid high dielectric resin. 3...Thermosetting resin, 4...Transparent 4-electrode electrode. 5... Fluorescent layer, 6... Insulating layer, 7... Back electrode, 8... Moisture-proof film. Figure 1
Claims (2)
ドープした蛍光体粒子の表面に、液状の高誘電樹脂層を
設け、さらにその外面に熱硬化樹脂層を形成してカプセ
ル構造として成る有機分散型ＥＬ用蛍光体。1. A liquid high dielectric resin layer is provided on the surface of phosphor particles doped with an activator such as copper or manganese and an activator such as chlorine or bromine, and a thermosetting resin layer is further formed on the outer surface to form a capsule structure. Organic dispersed EL phosphor.
量％とし、熱硬化樹脂を蛍光体粒子重量の０．０１〜１
重量％とすることを特徴とする請求項１記載の有機分散
型ＥＬ用蛍光体。2. The liquid high dielectric resin is 0.1 to 5% by weight of the weight of the phosphor particles, and the thermosetting resin is 0.01 to 1% of the weight of the phosphor particles.
The organic dispersion type EL phosphor according to claim 1, wherein the phosphor is expressed as % by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2140232A JPH0434893A (en) | 1990-05-30 | 1990-05-30 | Phosphor for organic dispersion type el |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2140232A JPH0434893A (en) | 1990-05-30 | 1990-05-30 | Phosphor for organic dispersion type el |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0434893A true JPH0434893A (en) | 1992-02-05 |
Family
ID=15263983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2140232A Pending JPH0434893A (en) | 1990-05-30 | 1990-05-30 | Phosphor for organic dispersion type el |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434893A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0636878A (en) * | 1992-07-15 | 1994-02-10 | Nippon Seiki Co Ltd | Electroluminescent element |
| JP5986225B2 (en) * | 2012-12-25 | 2016-09-06 | タツモ株式会社 | Dispersion type EL phosphor manufacturing method |
-
1990
- 1990-05-30 JP JP2140232A patent/JPH0434893A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0636878A (en) * | 1992-07-15 | 1994-02-10 | Nippon Seiki Co Ltd | Electroluminescent element |
| JP5986225B2 (en) * | 2012-12-25 | 2016-09-06 | タツモ株式会社 | Dispersion type EL phosphor manufacturing method |
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