JPH0527839Y2 - - Google Patents
Info
- Publication number
- JPH0527839Y2 JPH0527839Y2 JP1988153664U JP15366488U JPH0527839Y2 JP H0527839 Y2 JPH0527839 Y2 JP H0527839Y2 JP 1988153664 U JP1988153664 U JP 1988153664U JP 15366488 U JP15366488 U JP 15366488U JP H0527839 Y2 JPH0527839 Y2 JP H0527839Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting layer
- layer
- thermoplastic resin
- electroluminescent lamp
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 16
- 229920005992 thermoplastic resin Polymers 0.000 claims description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 4
- 239000007772 electrode material Substances 0.000 description 6
- 229920001218 Pullulan Polymers 0.000 description 5
- 239000004373 Pullulan Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 235000019423 pullulan Nutrition 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 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
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は電界発光灯に使用する発光層シート
の構造に関する。[Detailed Description of the Invention] Industrial Application Field This invention relates to the structure of a luminescent layer sheet used in an electroluminescent lamp.
従来の技術
従来の電界発光灯の構造を第２図により説明す
る。Prior Art The structure of a conventional electroluminescent lamp will be explained with reference to FIG.
１１は背面電極でありアルミ箔などからなる。
１２は反射絶縁層であり、シアノエチル化セルロ
ース、シアノエチル化プルランなど高誘電率樹脂
中にチタン酸バリウムなど高誘電率で白色の無機
粉末を分散させた層である。 11 is a back electrode made of aluminum foil or the like.
Reference numeral 12 denotes a reflective insulating layer, which is a layer in which white inorganic powder with a high dielectric constant such as barium titanate is dispersed in a high dielectric constant resin such as cyanoethylated cellulose or cyanoethylated pullulan.
１３は発光層であり、シアノエチル化プルラン
など高誘電率熱可塑性の樹脂１３ａ中に蛍光体１
３ｂを分散させた層である。背面電極１１を基材
として反射絶縁層１２及び発光層１３を逐次形成
する。 Reference numeral 13 is a light emitting layer, in which the phosphor 1 is contained in a high dielectric constant thermoplastic resin 13a such as cyanoethylated pullulan.
This is a layer in which 3b is dispersed. A reflective insulating layer 12 and a light emitting layer 13 are sequentially formed using the back electrode 11 as a base material.
５は透明電極材であり、ガラス、プラスチツク
フイルムなどの透明基材１５ａの片面に酸化イン
ジユームの薄膜などの透明導電層５ｂを形成して
なる。 Reference numeral 5 denotes a transparent electrode material, which is formed by forming a transparent conductive layer 5b such as a thin film of indium oxide on one side of a transparent base material 15a such as glass or plastic film.
前記背面電極１１の上に反射絶縁層１２及び発
光層１３を積層形成した発光層シートと、透明基
材１５ａに透明導電層５ｂを形成した透明電極材
５とをはり合わせ、発光層３と透明導電層５ｂを
密着し、加熱・加圧することにより接着して電界
発光灯となり、背面電極１と透明導電層５ｂとの
間に交流電圧を印加すると発光する。 A light-emitting layer sheet in which a reflective insulating layer 12 and a light-emitting layer 13 are laminated on the back electrode 11 and a transparent electrode material 5 in which a transparent conductive layer 5b is formed on a transparent base material 15a are laminated together. The conductive layer 5b is brought into close contact with the lamp and adhered by heating and pressurizing to form an electroluminescent lamp, which emits light when an alternating current voltage is applied between the back electrode 1 and the transparent conductive layer 5b.
考案が解決しようとする課題
ところで、蛍光体の粒径が大きいものは20〜
30μmもあり、又実用的な電圧、例えば100V以下
で実用的な輝度を得る為には、発光層の厚みは大
きくできず、30〜60μである。又、高誘電率熱可
塑性樹脂の量に対する蛍光体の量の比率も小さく
できない。Problems that the invention aims to solve By the way, the large particle size of the phosphor is 20~
In addition, in order to obtain practical brightness at a practical voltage, for example, 100 V or less, the thickness of the light-emitting layer cannot be increased, and the thickness is 30 to 60 μm. Furthermore, the ratio of the amount of phosphor to the amount of high dielectric constant thermoplastic resin cannot be made small.
そのため、発光層の表面は凹凸となり、透明電
極材とはり合わせたとき、部分的な不接触１６が
生じてきめの粗い発光となつていた。 Therefore, the surface of the light-emitting layer becomes uneven, and when it is bonded to the transparent electrode material, partial non-contact 16 occurs, resulting in rough light emission.
又、接着力にも問題があり剥離を生じ不発光と
なることもあつた。 In addition, there were also problems with adhesive strength, resulting in peeling and non-emission.
この考案の目的は、発光層の表面の凹凸を埋め
て平坦化した電界発光灯用発光層シートを提供す
ることである。 The purpose of this invention is to provide a light-emitting layer sheet for an electroluminescent lamp in which unevenness on the surface of the light-emitting layer is filled and flattened.
課題を解決するための手段
そこでこの考案は、背面電極となる基材上に形
成した反射絶縁層の上に樹脂中に蛍光体を分散し
た発光層を形成した電界発光灯用発光層シートに
おいて、前記発光層の上に発光層に使用したバイ
ンダと同一材料の熱可塑性樹脂層を形成したこと
を特徴とするものである。Means to Solve the Problems Therefore, this invention provides a light-emitting layer sheet for an electroluminescent lamp in which a light-emitting layer in which a phosphor is dispersed in a resin is formed on a reflective insulating layer formed on a base material serving as a back electrode. The present invention is characterized in that a thermoplastic resin layer made of the same material as the binder used for the light emitting layer is formed on the light emitting layer.
作 用
上記のように、発光層の上に発光層に使用した
バインダと同一材料の熱可塑性樹脂の層を設ける
ことにより、発光層の凹凸が流動性のある熱可塑
性樹脂によつて埋められて平滑になり、と発光層
をはり合わせた時、全面が接触する。その為、き
めの細かい発光となり且つ接着力も向上し、剥離
を生じることもない。Effect As described above, by providing a layer of thermoplastic resin made of the same material as the binder used for the luminescent layer on the luminescent layer, the irregularities of the luminescent layer are filled with the fluid thermoplastic resin. Once the surface is smooth, when the light-emitting layer is glued together, the entire surface will be in contact. Therefore, fine-grained light emission is achieved, adhesive strength is improved, and peeling does not occur.
実施例
第１図はこの考案の発光層シートを使用した電
界発光灯の一実施例の断面図である。背面電極と
なるアルミ箔１に高誘電率樹脂シアノエチル化プ
ルラン中にチタン酸バリウム粉末を分散させ反射
絶縁層２を厚み約40μに形成し、さらにシアノエ
チル化プルラン３ａ中に蛍光体３ｂを分散させて
発光層３を厚み約40μに形成した。さらにシアノ
エチル化プルランを用い、熱可塑性樹脂層４を厚
み約5μに形成した。Embodiment FIG. 1 is a sectional view of an embodiment of an electroluminescent lamp using the luminescent layer sheet of this invention. A reflective insulating layer 2 having a thickness of about 40 μm is formed by dispersing barium titanate powder in a high dielectric constant resin, cyanoethylated pullulan, on an aluminum foil 1 that will serve as a back electrode, and a fluorescent substance 3b is further dispersed in a cyanoethylated pullulan 3a. The light emitting layer 3 was formed to have a thickness of about 40 μm. Further, using cyanoethylated pullulan, a thermoplastic resin layer 4 was formed to have a thickness of about 5 μm.
その後、ポリエステルフイルムを透明基材５ａ
とし、酸化インジユームにてなる透明導電層５ｂ
を形成した透明電極材５を熱ロールにてはり合わ
せた。熱可塑樹脂のみの層が接着する面にあると
流動性が良く、全面に接触する為に接着力は十分
であり、きめの細かい外観良好な発光が得られ
た。 After that, the polyester film is attached to the transparent base material 5a.
and a transparent conductive layer 5b made of indium oxide.
The transparent electrode material 5 formed with the above was pasted together using a hot roll. When the layer of only thermoplastic resin was on the surface to be adhered, it had good fluidity, and since it contacted the entire surface, the adhesive force was sufficient, and light emission with a fine grain and good appearance was obtained.
また、熱可塑性樹脂は熱硬化性樹脂（例えばエ
ポキシ樹脂など）などにくらべて誘電率の高い材
料を選定しやすく、このような高誘電率の熱可塑
性樹脂を使用することにより、蛍光体粒子への電
圧配分を高めることができ、輝度向上につなが
る。 In addition, it is easier to select materials with a higher dielectric constant for thermoplastic resins than thermosetting resins (such as epoxy resins), and by using thermoplastic resins with such high dielectric constants, it is easier to select materials for phosphor particles. can increase voltage distribution, leading to improved brightness.
しかも、発光層に使用したバインダと同一材料
である熱可塑性樹脂を使用することにより、発光
層との接着性が向上するほか、同一材料を使用す
ることにより材料使用効率が向上し、電界発光灯
の製造コストの低下につながる利点もある。 Moreover, by using thermoplastic resin, which is the same material as the binder used for the light emitting layer, the adhesiveness with the light emitting layer is improved, and by using the same material, material usage efficiency is improved, and the electroluminescent lamp Another advantage is that it leads to lower manufacturing costs.
考案の効果
この考案は以上のように、きめの細かな外観良
好な発光で、接着面の接着力が強く剥離による不
発光を生ずることのない電界発光灯を得ることが
できる。Effects of the invention As described above, this invention makes it possible to obtain an electroluminescent lamp that emits fine-grained light with a good appearance, has a strong adhesive force on the adhesive surface, and does not cause non-emission due to peeling.
第１図はこの考案の一実施例の断面図である。
第２図は従来品の断面図である。
１……背面電極、２……反射絶縁層、３……発
光層、３ａ……高誘電率樹脂、３ｂ……蛍光体、
４……熱可塑性樹脂層、５……透明電極材、５ａ
……透明基材、５ｂ……透明導電層、１１……背
面電極、１２……反射絶縁層、１３……発光層、
１３ａ……高誘電率熱可塑性樹脂、１３ｂ……蛍
光体、１５……透明電極材、１５ａ……透明基
材、１５ｂ……透明導電層、１６……不接触部。
FIG. 1 is a sectional view of an embodiment of this invention.
FIG. 2 is a sectional view of a conventional product. DESCRIPTION OF SYMBOLS 1... Back electrode, 2... Reflective insulating layer, 3... Light emitting layer, 3a... High dielectric constant resin, 3b... Phosphor,
4...Thermoplastic resin layer, 5...Transparent electrode material, 5a
... Transparent base material, 5b ... Transparent conductive layer, 11 ... Back electrode, 12 ... Reflective insulating layer, 13 ... Light emitting layer,
13a... High dielectric constant thermoplastic resin, 13b... Fluorescent substance, 15... Transparent electrode material, 15a... Transparent base material, 15b... Transparent conductive layer, 16... Non-contact part.
Claims (1)
樹脂中に蛍光体を分散した発光層を形成した電界
発光灯用発光層シートにおいて、 前記発光層の上に発光層に使用したバインダと
同一材料の熱可塑性樹脂層を形成したことを特徴
とする電界発光灯用発光層シート。[Claims for Utility Model Registration] A light-emitting layer sheet for an electroluminescent lamp in which a light-emitting layer in which a phosphor is dispersed in a resin is formed on a reflective insulating layer formed on a base material of a back electrode, comprising: 1. A light-emitting layer sheet for an electroluminescent lamp, comprising a thermoplastic resin layer made of the same material as the binder used in the light-emitting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988153664U JPH0527839Y2 (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988153664U JPH0527839Y2 (en) | 1988-11-25 | 1988-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0273091U JPH0273091U (en) | 1990-06-04 |
| JPH0527839Y2 true JPH0527839Y2 (en) | 1993-07-15 |
Family
ID=31429710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988153664U Expired - Lifetime JPH0527839Y2 (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0527839Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58165291A (en) * | 1982-03-25 | 1983-09-30 | 日本電気ホームエレクトロニクス株式会社 | Electric field light emitting lamp |
| JPS6130994B2 (en) * | 1979-08-31 | 1986-07-17 | Mitsubishi Heavy Ind Ltd |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6130994U (en) * | 1984-07-28 | 1986-02-25 | アルプス電気株式会社 | transparent electrode sheet |
-
1988
- 1988-11-25 JP JP1988153664U patent/JPH0527839Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6130994B2 (en) * | 1979-08-31 | 1986-07-17 | Mitsubishi Heavy Ind Ltd | |
| JPS58165291A (en) * | 1982-03-25 | 1983-09-30 | 日本電気ホームエレクトロニクス株式会社 | Electric field light emitting lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0273091U (en) | 1990-06-04 |
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