JPS6344280B2 - - Google Patents
Info
- Publication number
- JPS6344280B2 JPS6344280B2 JP57158585A JP15858582A JPS6344280B2 JP S6344280 B2 JPS6344280 B2 JP S6344280B2 JP 57158585 A JP57158585 A JP 57158585A JP 15858582 A JP15858582 A JP 15858582A JP S6344280 B2 JPS6344280 B2 JP S6344280B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- electroluminescent device
- light
- insulating support
- fluorescent
- 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 11
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000003989 dielectric material Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 230000005684 electric field Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000002657 fibrous material Substances 0.000 claims 1
- 238000009941 weaving Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- -1 ZnS Chemical class 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005566 electron beam evaporation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 235000010944 ethyl methyl cellulose Nutrition 0.000 description 1
- 238000000695 excitation spectrum Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003087 methylethyl cellulose Polymers 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Description
【発明の詳細な説明】
この発明は、印加電界によりエレクトロルミネ
ツセンス発光（エレクトロルミネツセンスを以下
ではELと略記する。）を呈する発光層を電極間に
介設してなるEL素子に関するものである。[Detailed Description of the Invention] The present invention relates to an EL element in which a light-emitting layer that emits electroluminescence light (hereinafter abbreviated as EL) is interposed between electrodes when an applied electric field is applied. It is.
この種EL素子の基本構造を第１図に示す。図
において、１はガラス，アクリル板，塩化ビニ
ル，ポリエステルフイルム等の透明基板であり、
透明基板１上にIn2O3，SnO2等の透明電極２が形
成される。３はガラス，有機高分子フイルム，金
属板等からなる外装基板であり、この外装基板３
上にNi，Al等の背面電極４が形成される。上記
透明電極２と背面電極４間においてこの両電極で
挾むように、螢光物質と活性物質を含むEL発光
層５が設けられる。透明電極２と背面電極４間に
電気的に接続された交流電源６により発光層５に
電界が印加されると、電極から流入された電子が
活性物質の発光センターを励起してEL発光が生
起される。 The basic structure of this type of EL element is shown in FIG. In the figure, 1 is a transparent substrate such as glass, acrylic plate, vinyl chloride, polyester film, etc.
A transparent electrode 2 made of In 2 O 3 , SnO 2 or the like is formed on a transparent substrate 1 . 3 is an exterior substrate made of glass, organic polymer film, metal plate, etc.
A back electrode 4 made of Ni, Al, etc. is formed thereon. An EL light emitting layer 5 containing a fluorescent substance and an active substance is provided between the transparent electrode 2 and the back electrode 4 so as to be sandwiched between the two electrodes. When an electric field is applied to the light-emitting layer 5 by an AC power source 6 electrically connected between the transparent electrode 2 and the back electrode 4, electrons flowing from the electrode excite the light-emitting center of the active material, causing EL light emission. be done.
ところで、印加電界により螢光体から励起スペ
クトルのEL発光をなすEL発光層５は、従来よ
り、粉末状の螢光体粒子を誘電体バインダー中に
分散して埋込んだ分散型のものが使用されてい
る。しかしながら、分散型のものは基本的に次の
ような欠点をもつている。すなわち、螢光体粒子
の形状の多くが鱗片状（フレーク状）をなし、粒
子のまわりを誘電物質で完全に被覆するには不向
なこと、およびバインダーとの混練の際には空気
もとに練り込んでしまうのが普通で、個々の螢光
体粒子を誘電物質で完全に覆いつくすことができ
ないことである。螢光体を誘電物質で完全に被覆
できないことから、EL素子としての発光効率お
よび信頼性，寿命の点で問題があつた。 By the way, the EL light-emitting layer 5, which emits EL light with an excitation spectrum from the phosphor by an applied electric field, has conventionally been of a dispersed type in which powdered phosphor particles are dispersed and embedded in a dielectric binder. has been done. However, the distributed type basically has the following drawbacks. In other words, most of the phosphor particles have a flake-like shape, which makes it unsuitable for completely covering the particles with a dielectric material, and when kneading with the binder, air must be present. The problem is that it is not possible to completely cover each phosphor particle with dielectric material. Since the phosphor cannot be completely covered with a dielectric material, there have been problems with the luminous efficiency, reliability, and lifespan of the EL element.
本発明は上記問題点に鑑みなされたもので、螢
光体の被覆性をほぼ完全にして発光効率が良好で
長寿命のEL素子を提供することを目的とする。 The present invention was made in view of the above-mentioned problems, and an object of the present invention is to provide an EL element that has almost complete coverage of the phosphor, has good luminous efficiency, and has a long life.
即ち、本発明は、印加電界によりEL発光を呈
する発光層を改良するもので、微小径を有する絶
縁性支持体表面に螢光物質を主成分とする螢光層
を被覆形成するとともに該螢光層上に誘電物質を
密に被覆した三層体を予め形成し、この三層体を
有機高分子バインダー中に固定して発光層を形成
するようにしたことを基本的な特徴としている。 That is, the present invention improves a light-emitting layer that exhibits EL light emission by an applied electric field, by coating the surface of an insulating support having a minute diameter with a fluorescent layer containing a fluorescent substance as a main component, and at the same time forming a fluorescent layer mainly composed of a fluorescent substance. The basic feature is that a three-layer structure is formed in advance, with a dielectric material densely coated on the layer, and this three-layer structure is fixed in an organic polymer binder to form a light-emitting layer.
好ましくは、前記絶縁性支持体がガラス繊維，
アルミナ繊維又は直径数＋μmのアルミナ球状物
とする。前記三層体を繊維状に形成すると、柔軟
性に加えて互に織り込むことによつて平板状にで
き、この平板状の発光体により均一な面発光素子
が得られる。 Preferably, the insulating support is made of glass fiber,
Use alumina fibers or alumina spheres with a diameter of several μm. When the three-layer body is formed into a fibrous shape, in addition to its flexibility, it can be made into a flat plate by interweaving with each other, and a uniform surface-emitting element can be obtained from this flat light-emitting body.
また、長繊維状の三層体を短繊維に切断し、こ
れをバインダー中に一様に分散固定することで面
発光素子を得ることもできる。 Moreover, a surface emitting device can also be obtained by cutting the long fiber-like three-layer body into short fibers and uniformly dispersing and fixing the short fibers in a binder.
より好ましくは、前記三層体の外皮をなす誘電
物質の誘電率を高くする。すなわち、高誘電率の
物質を選ぶ。これにより、発光体に加わる電圧が
実質的に大きくなり、EL素子の駆動電圧を低下
させることができる。 More preferably, the dielectric constant of the dielectric material forming the outer skin of the three-layer body is increased. In other words, choose a material with a high dielectric constant. This substantially increases the voltage applied to the light emitting body, making it possible to reduce the driving voltage of the EL element.
以下、本発明を実施例によつて説明する。 Hereinafter, the present invention will be explained with reference to Examples.
実施例に係るEL素子の基本的構造は第１図の
ものと同様である。発光層５の構成が異なつてい
る。発光層５に含まれる発光体の構造は第２図に
断面で示す。第２図において、７は微小径を有す
る絶縁性支持体としてのガラス繊維、８はガラス
繊維７上に抵抗加熱法（Ｒ蒸着法）により一様な
厚さに形成した螢光物質を主成分とする螢光層、
９は螢光層８の上にスパツタリング又は電子ビー
ム蒸着法により一様な厚さに形成した誘電体層で
ある。このガラス繊維７、螢光層８、誘電体層９
によつて長繊維状の三層体１０が構成される。 The basic structure of the EL element according to the embodiment is the same as that shown in FIG. The structure of the light emitting layer 5 is different. The structure of the light emitter included in the light emitting layer 5 is shown in cross section in FIG. In Fig. 2, 7 is a glass fiber as an insulating support having a minute diameter, and 8 is a fluorescent substance formed to a uniform thickness on the glass fiber 7 by a resistance heating method (R vapor deposition method) as a main component. a phosphorescent layer,
A dielectric layer 9 is formed to have a uniform thickness on the fluorescent layer 8 by sputtering or electron beam evaporation. This glass fiber 7, fluorescent layer 8, dielectric layer 9
As a result, a long fiber-like three-layer body 10 is constructed.
Ｒ蒸着法により螢光層８を形成するとき、
ZnS，CdS，SrS等の硫化物又はZnSe等のセレン
化物に、活性物質としてMn，Cr等の遷移金属あ
るいはEu，Sm等の希土類元素を添加して実施す
る。 When forming the fluorescent layer 8 by the R vapor deposition method,
This is carried out by adding transition metals such as Mn and Cr or rare earth elements such as Eu and Sm as active substances to sulfides such as ZnS, CdS, and SrS or selenides such as ZnSe.
スパツタリング又は電子ビーム蒸着法により誘
電物質層９を形成するとき、誘電物質としては、
TiO2，Al2O3，Si3N4，SiO2等を用いる。これら
の誘電物質のいずれもが従来バインダーとして使
用されたセルロース系の有機高分子たとえばメチ
ルエチルセルロースやメチルシアノセルロースよ
りも誘電率が高い。高誘電率であるので、同じ輝
度を得るのに従来に比べEL素子駆動電圧を下げ
ることが可能となる。ちなみに、本実施例では周
波数40〜1KHz，駆動電圧が50〜150Vで従来並の
輝度を得ている。 When forming the dielectric material layer 9 by sputtering or electron beam evaporation, the dielectric material includes:
TiO 2 , Al 2 O 3 , Si 3 N 4 , SiO 2 , etc. are used. All of these dielectric materials have higher dielectric constants than cellulosic organic polymers conventionally used as binders, such as methyl ethyl cellulose and methyl cyano cellulose. Since it has a high dielectric constant, it is possible to lower the driving voltage of the EL element compared to conventional methods to obtain the same brightness. Incidentally, in this example, the frequency is 40 to 1 KHz and the driving voltage is 50 to 150 V, and the brightness is comparable to that of the conventional device.
第２図に示した実施例では絶縁性支持体はガラ
ス繊維を用いるが、アルミナ繊維でもよい。ガラ
ス繊維はアルミナ繊維よりも価格が安いのでその
点でメリツトがある。また、絶縁性支持体として
直径が数＋μmのアルミナ球状物を用いてもよい。 In the embodiment shown in FIG. 2, glass fiber is used as the insulating support, but alumina fiber may also be used. Glass fiber is cheaper than alumina fiber, so it has an advantage in that respect. Furthermore, alumina spheres having a diameter of several micrometers may be used as the insulating support.
具体的に発光層５を作成するときは、長繊維状
の三層体１０を所定の長さに切断するか、又は短
繊維状に切断してたとえば溶剤にとかしたメチル
シアノセルロース・バインダーに混入し、溶剤を
乾燥し、バインダーを固化させて三層体１０をバ
インダー中に固定する。 Specifically, when creating the light-emitting layer 5, the long fiber trilayer 10 is cut into a predetermined length, or cut into short fibers and mixed into a methylcyanocellulose binder dissolved in a solvent, for example. The three-layer body 10 is then fixed in the binder by drying the solvent and solidifying the binder.
発光層５を作成する他の方法は、第３図に示す
ように、長繊維状の三層体１０を複数本縦横に織
り合わせ予め布状ないし平板状に形成する。この
平板状に形成した三層体２０をバインダーに固定
し電極２，４（第１図）で挾むようにしてEL素
子を得る。なお、このとき、所定面積に切り取つ
た平板状三層体２０を二段，三段，所望の段数だ
け積み重ねるようにしてもよい。このような一定
の厚みを有する平板状三層体２０を用いると、発
光層５の厚さを均一にすることが可能である。さ
らに、作業性が優れて向上する。切断具たとえば
ハサミによつて所定寸法に切り取り、切り取つた
ものを単に電極２，４間に挾み込むだけで済むか
らである。なお、第３図において、布状の三層体
２０は織り目に空間があつて粗い織り方をしてい
るように見えるが、これは説明上のものであり、
実際のものは通常の布の如くもつと密に織られて
いる。 Another method for producing the light-emitting layer 5 is to form a cloth-like or flat-plate shape in advance by interweaving a plurality of long fiber-like three-layer bodies 10 vertically and horizontally, as shown in FIG. This three-layer body 20 formed into a flat plate shape is fixed to a binder and sandwiched between electrodes 2 and 4 (FIG. 1) to obtain an EL element. In addition, at this time, the flat three-layer body 20 cut into a predetermined area may be stacked in two, three, or a desired number of layers. By using such a flat three-layer body 20 having a constant thickness, it is possible to make the thickness of the light emitting layer 5 uniform. Furthermore, workability is excellently improved. This is because it is sufficient to simply cut it to a predetermined size using a cutting tool such as scissors and insert the cut piece between the electrodes 2 and 4. In addition, in FIG. 3, the cloth-like three-layer body 20 appears to have a coarse weave with spaces in the weave, but this is for illustration purposes only.
The actual fabric is tightly woven like regular cloth.
また、上記実施例では、繊維状の支持体はまつ
すぐのものを想定し、これに螢光体を形成するよ
うにしたが、支持体は毛玉状（ガラスウール状）
のガラス繊維であつてもよく、これにスパツタ蒸
着を行つてもよい。蒸着物質の回り込みで毛玉状
支持体の全体にまんべんなく蒸着をゆきわたらせ
ることができるのを利用するものである。 In addition, in the above example, the fibrous support was assumed to be straight, and a phosphor was formed on it, but the support was fluff-like (glass wool-like).
Glass fibers may be used, and sputter deposition may be performed on the glass fibers. This method takes advantage of the fact that the vapor deposition material can spread evenly over the entire fluff-like support by wrapping around the vapor deposition material.
上記実施例の如き構造を有するEL素子は、デ
イスプレイパネルとして文字や図形を表示する使
用法よりもむしろ、面発光素子として、他のデイ
スプレイ例えば液晶表示素子の背面照明としての
平面・薄型の利点を生かすことが好適である。 Rather than being used as a display panel for displaying characters and figures, the EL element having the structure of the above embodiment is used as a surface emitting element, which has the advantage of being flat and thin, as a backlight for other displays such as liquid crystal display elements. It is preferable to make the most of it.
以上のように、本発明は、微小径を有する支持
体上に螢光層と誘電体層を順次積層して形成した
三層体を予め作成し、この三層体をバインダー中
に固定して発光層を構成するようにしたので、発
光物質の被覆性は良く経時的な特性劣化もなく、
また上記した三層体をバインダー中に固定して二
電極間に挟持してなるので、電極間隔が一定で電
界強度が均一となり、輝度むらがなく、エレクト
ロルミネツセンス素子の寿命に支障のないように
できる。 As described above, in the present invention, a three-layer body is prepared in advance by sequentially laminating a fluorescent layer and a dielectric layer on a support having a minute diameter, and this three-layer body is fixed in a binder. Since it consists of a light-emitting layer, the coverage of the light-emitting substance is good and there is no characteristic deterioration over time.
In addition, since the three-layer structure described above is fixed in a binder and sandwiched between two electrodes, the electrode spacing is constant, the electric field strength is uniform, there is no uneven brightness, and the life of the electroluminescent element is not affected. You can do it like this.
第１図は発光層を二つの電極で挾むタイプの
EL素子の断面図、第２図は本発明の一実施例に
用いる三層体の断面による説明図、第３図は繊維
状の三層体を織つた平板状三層体を示す図であ
る。
２…透明電極、４…背面電極、５…発光層、６
…交流電源、７…ガラス繊維、８…螢光層、９…
誘電体層、１０…三層体。
Figure 1 shows a type in which the light-emitting layer is sandwiched between two electrodes.
A cross-sectional view of an EL element, FIG. 2 is an explanatory cross-sectional view of a three-layer body used in an embodiment of the present invention, and FIG. 3 is a diagram showing a flat three-layer body woven with fibrous three-layer bodies. . 2...Transparent electrode, 4...Back electrode, 5...Light emitting layer, 6
...AC power source, 7...glass fiber, 8...fluorescent layer, 9...
Dielectric layer, 10...trilayer body.
Claims (1)
光を呈する平板状の発光層を平面状の電極間に介
設してなるエレクトロルミネツセンス素子におい
て、前記発光層が予め蛍光物質を主成分とする蛍
光体を微小径を有する絶縁性支持体表面に被覆し
て蛍光層を形成しさらにこの蛍光層表面を誘電物
質で密に被覆して得た微小径の三層体を、有機高
分子バインダー中にほぼ一様に分布させた状態で
平板状に固化してなることを特徴とするエレクト
ロルミネツセンス素子。 ２ 前記絶縁性支持体がガラス繊維又はアルミナ
繊維である特許請求の範囲第１項記載のエレクト
ロルミネツセンス素子。 ３ 前記絶縁性支持体が直径数＋μmのアルミナ
球状体である特許請求の範囲第１項記載のエレク
トロルミネツセンス素子。 ４ 前記三層体は短繊維状のものである特許請求
の範囲第２項記載のエレクトロルミネツセンス素
子。 ５ 前記三層体は、前記繊維状のものを織つて平
板状に形成したものである特許請求の範囲第２項
記載のエレクトロルミネツセンス素子。 ６ 前記誘電物質は高誘電率のものである特許請
求の範囲第１項ないし第５項いずれかに記載のエ
レクトロルミネツセンス素子。[Scope of Claims] 1. An electroluminescent element in which a flat luminescent layer that emits electroluminescent light by an applied electric field is interposed between flat electrodes, wherein the luminescent layer is preliminarily made of a fluorescent material. A fluorescent layer is formed by coating the phosphor as a component on the surface of an insulating support having a minute diameter, and then the surface of this fluorescent layer is densely coated with a dielectric substance. An electroluminescent element characterized by being formed by solidifying into a flat plate shape in a state of being almost uniformly distributed in a molecular binder. 2. The electroluminescent device according to claim 1, wherein the insulating support is glass fiber or alumina fiber. 3. The electroluminescent device according to claim 1, wherein the insulating support is an alumina sphere having a diameter of several micrometers. 4. The electroluminescent device according to claim 2, wherein the three-layer body is in the form of short fibers. 5. The electroluminescent device according to claim 2, wherein the three-layer body is formed by weaving the fibrous material into a flat plate shape. 6. The electroluminescent device according to any one of claims 1 to 5, wherein the dielectric material has a high dielectric constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57158585A JPS5949193A (en) | 1982-09-10 | 1982-09-10 | Electroluminescent element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57158585A JPS5949193A (en) | 1982-09-10 | 1982-09-10 | Electroluminescent element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5949193A JPS5949193A (en) | 1984-03-21 |
| JPS6344280B2 true JPS6344280B2 (en) | 1988-09-05 |
Family
ID=15674900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57158585A Granted JPS5949193A (en) | 1982-09-10 | 1982-09-10 | Electroluminescent element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5949193A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5946054B2 (en) * | 2011-09-06 | 2016-07-05 | 川研ファインケミカル株式会社 | Method for producing alumina self-supporting thin film containing luminescent transition metal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5039087A (en) * | 1973-08-08 | 1975-04-10 | ||
| JPS5493388A (en) * | 1977-12-30 | 1979-07-24 | Omron Tateisi Electronics Co | Electroluminescent device |
-
1982
- 1982-09-10 JP JP57158585A patent/JPS5949193A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5039087A (en) * | 1973-08-08 | 1975-04-10 | ||
| JPS5493388A (en) * | 1977-12-30 | 1979-07-24 | Omron Tateisi Electronics Co | Electroluminescent device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5949193A (en) | 1984-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4684353A (en) | Flexible electroluminescent film laminate | |
| US20060158109A1 (en) | Electroluminescence device | |
| JP2874926B2 (en) | Electroluminescent lamp | |
| JPH01302692A (en) | Electroluminescence lamp device using single layer of electroluminescent material | |
| EP0691798A2 (en) | Fluorescent electroluminescent lamp | |
| EP1736522A1 (en) | Field-emission phosphor, its manufacturing method, and field-emission device | |
| KR970706370A (en) | Phosphor, and cathode ray tube and display device using the phosphor and display device | |
| KR19980050947A (en) | Light emitting particles for field emission display and light emitting layer forming method using the same | |
| CA1260592A (en) | Electroluminescent device | |
| KR20070107726A (en) | Dispersion-type electroluminescent element | |
| JP2007126667A (en) | Long-term afterglowing electroluminescent lamp | |
| EP1447854A2 (en) | AC operating electroluminescence device | |
| US4792723A (en) | Dispersive type electroluminescent panel and method of fabricating same | |
| US7588838B2 (en) | Electroluminescence device and display unit | |
| JPS6344280B2 (en) | ||
| US6011352A (en) | Flat fluorescent lamp | |
| JPH1140361A (en) | El light emitting panel and manufacture thereof | |
| CA1260591A (en) | Electroluminescent panels | |
| JP2005203336A (en) | Electroluminescent element and electroluminescent particle | |
| JPH07142173A (en) | Organic dispersion el panel | |
| JPH0224995A (en) | Electroluminescence element | |
| KR100301759B1 (en) | Thick film-type electroluminescence device | |
| JPS58172891A (en) | El display element | |
| JPH06260284A (en) | Dispersion type el element | |
| JPH06223969A (en) | Organic dispersion type el panel |