JPS6224960Y2 - - Google Patents
Info
- Publication number
- JPS6224960Y2 JPS6224960Y2 JP1982186339U JP18633982U JPS6224960Y2 JP S6224960 Y2 JPS6224960 Y2 JP S6224960Y2 JP 1982186339 U JP1982186339 U JP 1982186339U JP 18633982 U JP18633982 U JP 18633982U JP S6224960 Y2 JPS6224960 Y2 JP S6224960Y2
- Authority
- JP
- Japan
- Prior art keywords
- binder
- insulating layer
- solvent
- layer
- transparent electrode
- 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
Links
- 239000011230 binding agent Substances 0.000 claims description 17
- 239000002904 solvent Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 10
- KXJGSNRAQWDDJT-UHFFFAOYSA-N 1-acetyl-5-bromo-2h-indol-3-one Chemical compound BrC1=CC=C2N(C(=O)C)CC(=O)C2=C1 KXJGSNRAQWDDJT-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 2
- 229910002113 barium titanate Inorganic materials 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 description 3
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
Description
【考案の詳細な説明】
本考案は、数字や記号、文字などの表示に用い
るEL（electroluminescence：電界発光）素子に
関するものである。[Detailed Description of the Invention] The present invention relates to an EL (electroluminescence) element used for displaying numbers, symbols, characters, etc.
一般にEL素子は、透明電極基板上に発光層
（螢光体層）、絶縁層及び裏面電極を順次積層し、
外包フイルムで包み、前記透明電極基板と裏面電
極から電極端子を引き出した構造となつている。
前記発光層は、螢光体粒子を、該螢光体粒子の内
部電界を高める役割を果たすための誘電率の高い
シアノエチルセルロース（CNEC）バインダー内
に、塗布性の向上を目的とした溶剤例えばジメチ
ルホルムアミド（DMF）溶媒と共に分散させた
ペーストをスクリーン印刷等で前記透明電極基板
上に塗布、乾燥して形成する。前記絶縁層は、絶
縁耐圧を上げ、かつ電圧降下が少なくなるよにす
るためのものであり、前記発光層の膜中に存在す
る電界強度の弱い部分を補助する役割をなすため
の、例えばCNECのバインダー中に塗布性の向上
を目的としたDMF等の溶剤と共にチタン酸バリ
ウムを分散させたペーストをスクリーン印刷等に
より前記発光層上に塗布して形成する。また、前
記裏面電極は銀ペイント等の塗布によつて形成す
る。 Generally, an EL element is made by sequentially laminating a light emitting layer (phosphor layer), an insulating layer, and a back electrode on a transparent electrode substrate.
It has a structure in which it is wrapped in an outer envelope film and electrode terminals are drawn out from the transparent electrode substrate and the back electrode.
The light-emitting layer consists of phosphor particles in a cyanoethyl cellulose (CNEC) binder with a high dielectric constant, which serves to increase the internal electric field of the phosphor particles, and a solvent such as dimethyl to improve coating properties. A paste dispersed together with a formamide (DMF) solvent is applied onto the transparent electrode substrate by screen printing or the like and dried to form the paste. The insulating layer is for increasing the dielectric strength and reducing the voltage drop, and is made of CNEC, for example, for assisting the weak electric field strength in the light emitting layer. A paste prepared by dispersing barium titanate together with a solvent such as DMF for the purpose of improving coating properties in a binder is coated onto the light emitting layer by screen printing or the like. Further, the back electrode is formed by applying silver paint or the like.
しかし、このような構造では、発光層と絶縁層
に同じバインダーを使用しているため、一度乾燥
した発光層が次の絶縁層の形成時に影響を受け、
層の剥離、ひび割れ、気泡等が生じる。また、絶
縁層の形成時にその溶剤が発光層に吸収されるの
で、絶縁層のペーストの粘度が変化して作業性が
悪くなり、絶縁層が不均一になつたり、欠陥が生
じ、素子特性の安定性が低下するといつた欠点が
ある。 However, in such a structure, the same binder is used for the emissive layer and the insulating layer, so once the emissive layer is dried, it is affected when the next insulating layer is formed.
Peeling of layers, cracks, bubbles, etc. occur. Additionally, when forming the insulating layer, the solvent is absorbed by the light-emitting layer, which changes the viscosity of the paste for the insulating layer, impairing workability, making the insulating layer uneven, causing defects, and impairing device characteristics. The disadvantage is that stability decreases.
本考案は上記欠点を除去するためになされたも
ので、発光層と絶縁層に異なるバインダーを用
い、かつ絶縁層の溶剤に発光層のバインダーを溶
かし難い溶剤を用いることにより、信頼性の向上
及び作業性の改善が図れるEL素子を提供するこ
とを目的とする。 The present invention was developed to eliminate the above-mentioned drawbacks, and by using different binders for the light-emitting layer and the insulating layer, and using a solvent that does not easily dissolve the binder of the light-emitting layer as the solvent for the insulating layer, reliability can be improved and The purpose is to provide an EL element that can improve workability.
以下、本考案を図示の実施例に基づいて詳細に
説明する。 Hereinafter, the present invention will be explained in detail based on illustrated embodiments.
図面は本考案の一実施例を示すもので、１は透
明電極基板、２はこの基板１上に形成した発光層
（螢光体層）、３はこの発光層２上に形成した絶縁
層、４はこの絶縁層３上に銀ペイント等の塗布に
よつて形成した裏面電極、５はこれらの積層体に
囲設した外包フイルム、６Ａ及び６Ｂは前記透明
電極基板１及び裏面電極４から引き出した電極端
子である。 The drawing shows an embodiment of the present invention, in which 1 is a transparent electrode substrate, 2 is a light emitting layer (fluorescent layer) formed on this substrate 1, 3 is an insulating layer formed on this light emitting layer 2, 4 is a back electrode formed on this insulating layer 3 by applying silver paint or the like, 5 is an outer envelope film surrounded by these laminates, and 6A and 6B are drawn out from the transparent electrode substrate 1 and back electrode 4. It is an electrode terminal.
前記発光層２は、螢光体粒子をCNECバインダ
ーにDMF等の溶剤と共に分散させたペーストを
スクリーン印刷等によつて塗布し、乾燥して形成
する。また、前記絶縁層３は、バインダーとして
エチルセルロース等のCNEC以外のセルロースを
使用し、溶剤としてCNECを溶かさないか、また
は溶かし難い溶剤、例えば、エチルセルロースの
場合には酢酸ブチルを使用して形成する。これに
よつて、絶縁層３の形成時に発光層２に殆ど影響
を与えることがなくなる。 The light-emitting layer 2 is formed by applying a paste in which phosphor particles are dispersed in a CNEC binder together with a solvent such as DMF by screen printing and drying. Further, the insulating layer 3 is formed using a cellulose other than CNEC such as ethyl cellulose as a binder, and a solvent that does not dissolve CNEC or does not easily dissolve CNEC, such as butyl acetate in the case of ethyl cellulose. As a result, the light emitting layer 2 is hardly affected during the formation of the insulating layer 3.
なお、セルロース系樹脂はエステル化やエーテ
ル化反応の度合と重合度により種々の性質を有す
る誘導体が得られるので、上記のような使い分け
が可能である。 Note that cellulose resins can be used selectively as described above, since derivatives having various properties can be obtained depending on the degree of esterification or etherification reaction and the degree of polymerization.
以上のように本考案によれば、発光層と絶縁層
のバインダーを異ならせ、かつ発光層のバインダ
ーを溶かし難い溶剤を絶縁層の溶剤として用いる
ので、絶縁層形成時に下層の発光層に影響を与え
ることがなくなり、層の剥離、ひび割れ、気泡等
が生じ難くなつて、素子の信頼性が向上する。ま
た、発光層によつて絶縁層の溶剤が吸収されにく
くなり、ペースト粘度が変化しないため、作業性
が改善されて膜厚の制御が容易となり、下層の発
光層のパターンが上層の絶縁層の溶剤で溶けて崩
れるのが防止されることと相俟つて、細かいパタ
ーンの素子を作ることができるといつた利点があ
る。 As described above, according to the present invention, the binders of the emissive layer and the insulating layer are different, and a solvent that does not easily dissolve the binder of the emissive layer is used as the solvent of the insulating layer, so that the underlying emissive layer is not affected when forming the insulating layer. As a result, layer peeling, cracking, bubbles, etc. are less likely to occur, and the reliability of the device is improved. In addition, the emissive layer makes it difficult for the solvent in the insulating layer to be absorbed and the paste viscosity does not change, improving workability and making it easier to control the film thickness. This has the advantage of being able to prevent elements from dissolving and collapsing due to solvent, and making it possible to create elements with fine patterns.
図面は本考案に係るEL素子の一実施例を示す
断面図である。
１……透明電極基板、２……発光層、３……絶
縁層、４……裏面電極、５……外包フイルム、６
Ａ，６Ｂ……電極端子。
The drawing is a sectional view showing one embodiment of the EL element according to the present invention. DESCRIPTION OF SYMBOLS 1...Transparent electrode substrate, 2...Light emitting layer, 3...Insulating layer, 4...Back electrode, 5...Outer envelope film, 6
A, 6B... Electrode terminal.
Claims (1)
を目的とした溶剤と共にバインダー中に分散さ
せたペーストを前記透明電極基板上に塗布乾燥
させて形成した発光層と、チタン酸バリウム等
の強誘電粒子を塗布性の向上を目的とした溶剤
と共にバインダー中に分散させたペーストを前
記発光層上に塗布させて形成した絶縁層と、前
記絶縁層上に銀ペイント等の塗布によつて形成
した裏面電極とで積層体を構成し、この積層体
を外包フイルムで包み、前記透明電極基板及び
裏面電極から電極端子を引き出したEL素子に
おいて、前記発光層と絶縁層に異なるバインダ
ーを使用し、かつ絶縁層に発光層のバインダー
を溶かさないか、または溶かし難い溶剤を用い
たことを特徴とするEL素子。 (2) 発光層のバインダーとしてシアノエチルセル
ロース系のバインダーを用い、絶縁層のバイン
ダーとしてシアノエチルセルロース系以外のセ
ルロース系バインダーを用いた実用新案登録請
求の範囲第１項記載のEL素子。[Claims for Utility Model Registration] (1) Formed by coating a transparent electrode substrate and a paste in which phosphor particles are dispersed in a binder together with a solvent for the purpose of improving coating properties on the transparent electrode substrate and drying. an insulating layer formed by coating the luminescent layer with a paste in which ferroelectric particles such as barium titanate are dispersed in a binder together with a solvent for the purpose of improving coating properties; and a back electrode formed by applying silver paint or the like to form a laminate, the laminate is wrapped with an outer envelope film, and an electrode terminal is drawn out from the transparent electrode substrate and the back electrode. An EL element characterized in that different binders are used for the insulating layer and a solvent is used for the insulating layer that does not dissolve or does not easily dissolve the binder of the light emitting layer. (2) The EL device according to claim 1, which uses a cyanoethyl cellulose-based binder as a binder for the light-emitting layer and a cellulose-based binder other than cyanoethyl cellulose as a binder for the insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18633982U JPS5990199U (en) | 1982-12-09 | 1982-12-09 | EL element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18633982U JPS5990199U (en) | 1982-12-09 | 1982-12-09 | EL element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5990199U JPS5990199U (en) | 1984-06-19 |
| JPS6224960Y2 true JPS6224960Y2 (en) | 1987-06-25 |
Family
ID=30402508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18633982U Granted JPS5990199U (en) | 1982-12-09 | 1982-12-09 | EL element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5990199U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215954A (en) * | 1975-07-25 | 1977-02-05 | Yunitsuta Kk | Timing belt |
-
1982
- 1982-12-09 JP JP18633982U patent/JPS5990199U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215954A (en) * | 1975-07-25 | 1977-02-05 | Yunitsuta Kk | Timing belt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5990199U (en) | 1984-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI240602B (en) | An improved method to embed passive components | |
| US5770920A (en) | Electroluminescent lamp having a terpolymer binder | |
| JP3947226B2 (en) | EL panel with roll coating | |
| US2894854A (en) | Electroluminescent device | |
| JPH05235497A (en) | Copper conductive paste | |
| JPS6224960Y2 (en) | ||
| JPH0878164A (en) | Conductive paste, translucent conductive film, and dispersion type electroluminescent element using them | |
| JPH0744072B2 (en) | EL device and manufacturing method thereof | |
| JP2000276944A (en) | Conductive paste and manufacture of ceramic electronic component using it | |
| JP2004528693A (en) | Phosphor layer for electroluminescence panel and method of manufacturing the same | |
| JP2795132B2 (en) | EL device | |
| JPH09205035A (en) | Multilayered ceramic capacitor | |
| JPH0141198Y2 (en) | ||
| JP3146059B2 (en) | Transparent conductive film | |
| JPS624837B2 (en) | ||
| JPH01157091A (en) | Dispersion type electroluminescence element | |
| JPS63257198A (en) | Manufacture of electroluminescence display device | |
| JPH02223192A (en) | Dispersion-type el device and its manufacture | |
| JPH05217672A (en) | Inorganic dispersion type light-emitting element and manufacture of the same | |
| JPH0786080A (en) | Electrode forming method for ceramic electronic component | |
| JPH01151218A (en) | Formation of electrode for high-voltage ceramic capacitor | |
| JPH03152914A (en) | Manufacture of laminated ceramic capacitor | |
| JPS6074504A (en) | Thick film condenser | |
| JPH0869880A (en) | Manufacture of electroluminescent lamp | |
| JPH0629660A (en) | Manufacture of multilayered wiring board |