JP2000172206A - El display device - Google Patents
El display deviceInfo
- Publication number
- JP2000172206A JP2000172206A JP10342441A JP34244198A JP2000172206A JP 2000172206 A JP2000172206 A JP 2000172206A JP 10342441 A JP10342441 A JP 10342441A JP 34244198 A JP34244198 A JP 34244198A JP 2000172206 A JP2000172206 A JP 2000172206A
- Authority
- JP
- Japan
- Prior art keywords
- electrode layer
- layer
- display device
- scattered
- light emitting
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 10
- 238000005401 electroluminescence Methods 0.000 abstract description 37
- 239000000126 substance Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000002245 particle Substances 0.000 description 9
- 238000003825 pressing Methods 0.000 description 7
- 239000011888 foil Substances 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 229920000620 organic polymer Polymers 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004840 adhesive resin Substances 0.000 description 2
- 229920006223 adhesive resin Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はＥＬ表示装置に係
り、特に、ＥＬ(Electro Luminescence)素子を用いて、
任意の文字やパターンを表示可能なＥＬ表示装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an EL display device, and more particularly to an EL display device using an EL (Electro Luminescence) element.
The present invention relates to an EL display device capable of displaying arbitrary characters and patterns.
【０００２】[0002]
【従来の技術】発光素子としてＥＬ素子を用いたＥＬ表
示装置は、視野角が広く、薄型の表示装置が得られるこ
とから近年注目されており、カラー化と長寿命化による
実用品の制作に向けて精力的な研究が行なわれている。2. Description of the Related Art An EL display device using an EL element as a light-emitting element has been attracting attention in recent years because a wide viewing angle and a thin display device can be obtained. Vigorous research is being carried out.
【０００３】図３を参照し、従来のＥＬ表示装置につい
て説明する。かかる従来のＥＬ表示装置を製造するに
は、まず、図３(ａ)に示すように、ガラス基板１０２表
面にＩＴＯ(Indium Tin Oxide)膜を全面に成膜して透明
電極１０３を形成し、透明電極１０３の表面全面に、発
光層１０４を形成する。この発光層１０４は、シアノエ
チル化セルロースなどの有機高分子中に、ＺｎＳなどの
蛍光体粒子が分散されることで構成され、交流電圧が印
加されると、蛍光体粒子が発光するようにされている。[0003] A conventional EL display device will be described with reference to FIG. To manufacture such a conventional EL display device, first, as shown in FIG. 3A, an ITO (Indium Tin Oxide) film is formed on the entire surface of a glass substrate 102 to form a transparent electrode 103, The light emitting layer 104 is formed on the entire surface of the transparent electrode 103. The light-emitting layer 104 is formed by dispersing phosphor particles such as ZnS in an organic polymer such as cyanoethylated cellulose. The phosphor particles emit light when an AC voltage is applied. I have.
【０００４】次に、発光層１０４の表面全面に高誘電体
層１０５を形成し、その表面全面に金属箔１０７を形成
する。次いで、図３(ｂ)に示すように、金属箔１０７を
所望の形状にエッチングして背面電極１０６を形成す
る。ここでは、互いに電気的に接続されていない２個の
背面電極１０６1、１０６2を形成するものとする。Then, a high dielectric layer 105 is formed on the entire surface of the light emitting layer 104, and a metal foil 107 is formed on the entire surface. Next, as shown in FIG. 3B, the metal foil 107 is etched into a desired shape to form the back electrode 106. Here, it is assumed that two back electrodes 106 1 and 106 2 that are not electrically connected to each other are formed.
【０００５】そして、交流電源１１０の一端を、背面電
極１０６1、１０６2の両方に接続し、他端を透明電極１
０３に接続する。上記の工程を経て、ＥＬ表示装置１０
１が完成する。[0005] One end of the AC power supply 110 is connected to both the back electrodes 106 1 and 106 2 , and the other end is connected to the transparent electrode 1.
Connect to 03. Through the above steps, the EL display device 10
1 is completed.
【０００６】こうして完成したＥＬ表示装置１０１で
は、交流電源１１０で、透明電極１０３と、背面電極１
０６との間に交流電圧を印加すると、背面電極１０６の
形成された領域上の発光層１０４上に強い交流電圧が印
加され、他方、その他の領域の発光層１０４にはほとん
ど交流電圧が印加されないので、背面電極１０６の形成
された領域にある発光層１０４のみを部分的に発光させ
ることができる。In the EL display device 101 thus completed, the transparent electrode 103 and the back electrode 1
When an AC voltage is applied between the light emitting layer 104 and the light emitting layer 104 in the region where the back electrode 106 is formed, the AC voltage is hardly applied to the light emitting layer 104 in the other region. Therefore, only the light emitting layer 104 in the region where the back electrode 106 is formed can partially emit light.
【０００７】発光層１０４から部分的に発せられた光
は、透明電極１０３側に照射されるとともに、高誘電体
層１０５側にも照射される。高誘電体層１０５は、シア
ノエチル化セルロースなどの有機高分子中に、高誘電性
で高反射率を有するＢａＴｉＯ 3等の酸化物が混入され
ることで構成されており、高誘電体層１０５側へ光が照
射されると、ＢａＴｉＯ3等の酸化物で反射され、再び
発光層１０４を介して透明電極１０３側へと照射される
ので、発光効率が向上する。Light partially emitted from the light emitting layer 104
Is irradiated on the transparent electrode 103 side,
The irradiation is also performed on the layer 105 side. The high dielectric layer 105
High dielectric properties in organic polymers such as nonethylated cellulose
BaTiO with high reflectivity ThreeOxides are mixed in
Light is directed to the high dielectric layer 105 side.
When fired, BaTiOThreeReflected by oxides of
Irradiation to the transparent electrode 103 side via the light emitting layer 104
Therefore, luminous efficiency is improved.
【０００８】そして、上記のＥＬ表示装置１０１は、背
面電極１０６の形成された領域のみを発光させることが
できるので、予め背面電極１０６を、表示したい所定の
パターンに予め形成しておくことで、所定の領域を発光
させて、ガラス基板１０２側に表示させることができ
る。Since the EL display device 101 can emit light only in the region where the back electrode 106 is formed, by forming the back electrode 106 in advance in a predetermined pattern to be displayed, A predetermined region can be made to emit light and be displayed on the glass substrate 102 side.
【０００９】しかしながら、ＥＬ表示装置１０１を使用
する使用者が、所望の文字や図形等を表示するには、使
用者が図３(ａ)の状態のものを入手して、金属箔１０７
を、その文字や図形に合わせて成形して、背面電極１０
６を形成する必要がある。However, in order for a user using the EL display device 101 to display desired characters, figures, and the like, the user obtains the state shown in FIG.
Is formed in accordance with the character or figure, and the back electrode 10 is formed.
6 need to be formed.
【００１０】金属箔１０７を所望の図形に成形するに
は、金属箔１０７をエッチングする方法が一般的である
が、この場合には、使用者がエッチング可能な設備を有
していなければならないので、使用者の負担が大きくな
り、所望の文字、図形などを表示可能なＥＬ表示装置を
簡単に得ることができなかった。In order to form the metal foil 107 into a desired figure, a method of etching the metal foil 107 is generally used. In this case, however, the user must have equipment capable of etching. However, the burden on the user is increased, and an EL display device capable of displaying desired characters, figures, and the like cannot be easily obtained.
【００１１】さらに、電気的に接続されていない複数の
背面電極１０６が高誘電体層１０５上に配置されること
で、不連続なパターンを表示するようにされている場合
には、各々の背面電極１０６1、１０６2に電圧を印加す
るために、背面電極１０６1、１０６2の両方を交流電源
１１０と接続しなければならなかった。Further, when a plurality of back electrodes 106 that are not electrically connected are arranged on the high dielectric layer 105 so as to display a discontinuous pattern, each back electrode 106 is formed on each of the back electrodes 106. in order to apply a voltage to the electrodes 106 1, 106 2, it had to be connected to both the back electrode 106 1, 106 2 and the AC power source 110.
【００１２】[0012]
【発明が解決しようとする課題】本発明は上記従来技術
の不都合を解決するために創作されたものであり、製造
工程を簡略化できるＥＬ表示装置を提供することにあ
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages of the prior art, and has as its object to provide an EL display device capable of simplifying the manufacturing process.
【００１３】[0013]
【課題を解決するための手段】請求項１記載の発明は、
ＥＬ表示装置であって、透明基板と、前記透明基板上に
配置された透明電極層と、前記透明電極層上に配置され
た発光層と、前記発光層上に散在して配置された散在電
極層と、前記散在電極層上に配置された異方導電性フィ
ルムとを有し、前記散在電極層と、前記透明電極層との
間に電圧を印加して、前記発光層を発光させるように構
成されたことを特徴とする。According to the first aspect of the present invention,
An EL display device, comprising: a transparent substrate; a transparent electrode layer disposed on the transparent substrate; a light emitting layer disposed on the transparent electrode layer; and a scattered electrode dispersed on the light emitting layer. A layer and an anisotropic conductive film disposed on the scattered electrode layer, and applying a voltage between the scattered electrode layer and the transparent electrode layer to cause the light emitting layer to emit light. It is characterized by comprising.
【００１４】請求項２記載の発明は、請求項１記載のＥ
Ｌ表示装置であって、前記異方導電性フィルム上に、背
面電極層が配置されたことを特徴とする。The invention according to claim 2 is the invention according to claim 1,
An L display device, wherein a back electrode layer is disposed on the anisotropic conductive film.
【００１５】請求項３記載の発明は、請求項２記載のＥ
Ｌ表示装置であって、前記異方導電性フィルムが、前記
背面電極層から前記散在電極に向けて部分的に押圧され
たことを特徴とする。The invention according to claim 3 is the invention according to claim 2.
The L display device, wherein the anisotropic conductive film is partially pressed from the back electrode layer toward the scattered electrodes.
【００１６】本発明のＥＬ表示装置は、散在電極層と、
異方導電性フィルムとを有しており、異方導電性フィル
ム上に、背面電極層を有している。異方導電性フィルム
は、絶縁性接着樹脂中に、導電粒子が混入されることで
構成されているので、背面電極層側から、散在電極層へ
向けて部分的に押圧すると、押圧された部分の絶縁性接
着樹脂が軟化して、押圧部分の導電粒子が、その上下の
散在電極層及び背面電極層と当接し、押圧部分の散在電
極層と背面電極層とが、導電粒子を介して導通する。An EL display device according to the present invention comprises a scattered electrode layer,
An anisotropic conductive film, and a back electrode layer on the anisotropic conductive film. Since the anisotropic conductive film is formed by mixing conductive particles into the insulating adhesive resin, when the back electrode layer is partially pressed toward the scattered electrode layer, the pressed portion is pressed. The insulating adhesive resin is softened, and the conductive particles in the pressed portion contact the upper and lower scattered electrode layers and the back electrode layer, and the scattered electrode layer and the back electrode layer in the pressed portion are electrically connected via the conductive particles. I do.
【００１７】散在電極層は、島状に散在して配置され、
各散在電極層は電気的にそれぞれ孤立しているので、押
圧部分の散在電極層と背面電極層とは導通するが、押圧
部分以外の散在電極層と背面電極層とは導通しない。The scattered electrode layers are scattered in an island shape,
Since the scattered electrode layers are electrically isolated from each other, the scattered electrode layer at the pressed portion and the back electrode layer conduct, but the scattered electrode layer other than the pressed portion does not conduct at the back electrode layer.
【００１８】このため、透明電極層と背面電極層との間
に電圧を印加すると、押圧部分の発光層には、透明電極
層と、発光層に近接した散在電極層とから電圧が印加さ
れるので、発光層が発光するに十分な強い電圧が印加さ
れる。For this reason, when a voltage is applied between the transparent electrode layer and the back electrode layer, a voltage is applied to the light emitting layer at the pressed portion from the transparent electrode layer and the scattered electrode layers close to the light emitting layer. Therefore, a strong voltage sufficient for the light emitting layer to emit light is applied.
【００１９】他方、押圧部分以外の箇所では、発光層に
近接した散在電極層からは直接電圧が印加されないた
め、この箇所の発光層には、ごく弱い電圧しか印加され
ないので、押圧部分の発光層のみを部分的に発光させる
ことができる。On the other hand, no voltage is directly applied to the scattered electrode layer adjacent to the light emitting layer in a portion other than the pressed portion. Therefore, only a very weak voltage is applied to the light emitting layer in this portion. Only some can emit light.
【００２０】従って、ＥＬ表示装置の使用者は、背面電
極層から、散在電極へ向けて、所望の領域の異方導電性
フィルムを押圧することで、押圧した所望の領域の発光
層にのみ電圧を印加して、発光させることができるの
で、従来のように使用者がエッチング設備を有していな
くても、所望の領域を発光表示可能なＥＬ表示装置を容
易に製造することができる。Therefore, the user of the EL display device presses the anisotropic conductive film in a desired area from the back electrode layer to the scattered electrodes, so that the voltage is applied only to the light emitting layer in the pressed desired area. Is applied to cause light emission, so that an EL display device capable of emitting and displaying a desired region can be easily manufactured even if the user does not have etching equipment as in the related art.
【００２１】また、異方導電性フィルムで、所定の領域
の散在電極層と、背面電極層とを導通させておけば、背
面電極層の一箇所に電圧を印加し、透明電極に電圧を印
加することで、所定の領域の発光層に電圧を印加して所
定の領域のみを発光させることができる。従って、相互
に電気的に導通していない複数のパターンを表示するよ
うな場合でも、従来のように複数の背面電極を発光層上
に形成し、各背面電極ごとに電源を接続しなくともよい
ので、製造工程を簡略化することが可能になる。Further, if a predetermined region of the scattered electrode layer and the back electrode layer are electrically connected by the anisotropic conductive film, a voltage is applied to one portion of the back electrode layer and a voltage is applied to the transparent electrode. By doing so, it is possible to apply a voltage to the light emitting layer in a predetermined area to emit light only in the predetermined area. Therefore, even when displaying a plurality of patterns that are not electrically connected to each other, it is not necessary to form a plurality of back electrodes on the light emitting layer and connect a power source to each back electrode as in the related art. Therefore, the manufacturing process can be simplified.
【００２２】[0022]
【発明の実施の形態】以下で図面を参照し、本発明の実
施形態について説明する。最初に、本実施形態のＥＬ表
示装置の製造方法について説明する。Embodiments of the present invention will be described below with reference to the drawings. First, a method for manufacturing the EL display device of the present embodiment will be described.
【００２３】図１（ａ）に示すように、ガラス基板２の
表面全面にＩＴＯ膜を成膜して、透明電極３を形成した
後に、シアノエチル化セルロースなどの有機高分子中
に、ＺｎＳ等の蛍光性物質が混入された溶液を、透明電
極３上に塗布して硬化させることで発光層４を形成す
る。As shown in FIG. 1A, an ITO film is formed on the entire surface of the glass substrate 2 and a transparent electrode 3 is formed. Then, in an organic polymer such as cyanoethylated cellulose, ZnS or the like is added. The light-emitting layer 4 is formed by applying and curing the solution mixed with the fluorescent substance on the transparent electrode 3.
【００２４】次に、図１(ｂ)に示すように、シアノエチ
ル化セルロースなどの有機高分子中に、ＢａＴｉＯ3等
の高反射性無機酸化物の粉末が分散された溶液を、発光
層４表面に塗布して硬化させて、高誘電体層５を形成す
る。次いで、高誘電体層５の表面に、カーボン等が混入
された導電性の粘着材をスクリーン印刷することで、島
状に散在する散在電極層７を形成する。Next, as shown in FIG. 1B, a solution in which a powder of a highly reflective inorganic oxide such as BaTiO 3 is dispersed in an organic polymer such as cyanoethylated cellulose is applied to the surface of the light emitting layer 4. Is applied and cured to form the high dielectric layer 5. Next, on the surface of the high dielectric layer 5, a conductive adhesive material mixed with carbon or the like is screen-printed to form the scattered electrode layers 7 scattered in an island shape.
【００２５】そして、図１(ｃ)に示すように、金属箔か
らなる背面電極層１２上に異方導電性フィルム１１を接
着したものを予め用意しておき、異方導電性フィルム１
１側が散在電極層７側に面するように背面電極層１２を
配置して、異方導電性フィルム１１と散在電極層７と
を、導電性を有する接着剤で軽く接着しておく。Then, as shown in FIG. 1 (c), a material in which an anisotropic conductive film 11 is bonded on a back electrode layer 12 made of a metal foil is prepared in advance.
The back electrode layer 12 is arranged such that one side faces the scattered electrode layer 7 side, and the anisotropic conductive film 11 and the scattered electrode layer 7 are lightly adhered to each other with a conductive adhesive.
【００２６】その後、ガラス基板２側を、図示しない支
持台上に載置して、図示しない押圧部材を１６０℃まで
加熱して、背面電極層１２上に当接させ、押圧部材で背
面電極層１２を散在電極層７方向に３０秒間押圧する。Thereafter, the glass substrate 2 side is placed on a support (not shown), and a pressing member (not shown) is heated to 160 ° C. and brought into contact with the back electrode layer 12. 12 is pressed in the direction of the scattered electrode layer 7 for 30 seconds.
【００２７】押圧部材の表面には、予め表示したい所望
の形状に合わせた凸部が形成されており、背面電極層１
２から散在電極層７へ向けて押圧することにより、異方
導電性フィルム１１が部分的に押圧される。On the surface of the pressing member, a convex portion conforming to a desired shape to be displayed in advance is formed.
By pressing from 2 to the scattered electrode layer 7, the anisotropic conductive film 11 is partially pressed.
【００２８】この異方導電性フィルム１１は、絶縁樹脂
９中に導電粒子８が混入されることで構成されており、
押圧されると、押圧部分の絶縁樹脂９が軟化して、図１
(ｄ)に示すように、押圧部分の導電粒子８が上下の散在
電極層７及び背面電極層１２と当接し、導電粒子８を介
して上下の散在電極層７及び背面電極層１２が導通す
る。図２(ａ)は、ＥＬ表示装置１をガラス基板２側から
みた平面図であって、図１(ｄ)は、図２(ａ)のＡ−Ａ線
断面図である。図２(ａ)の符号１３1〜１３3は、凸部に
よって押圧された異方導電性フィルム１１の押圧部分を
示している。その後、透明電極２と背面電極層１２と
に、交流電源１０を接続することで、図１(ｄ)に示すＥ
Ｌ表示装置１が完成する。The anisotropic conductive film 11 is formed by mixing conductive particles 8 into an insulating resin 9.
When pressed, the insulating resin 9 in the pressed portion is softened, and FIG.
As shown in (d), the conductive particles 8 in the pressed portion come into contact with the upper and lower scattered electrode layers 7 and the back electrode layer 12, and the upper and lower scattered electrode layers 7 and the back electrode layer 12 conduct through the conductive particles 8. . FIG. 2A is a plan view of the EL display device 1 as viewed from the glass substrate 2 side, and FIG. 1D is a cross-sectional view taken along line AA of FIG. 2A. Figure 2 reference numeral 131-134 3 (a) shows a pressing portion of the pressed anisotropic conductive film 11 by the convex portion. Thereafter, by connecting an AC power supply 10 to the transparent electrode 2 and the back electrode layer 12, the E power shown in FIG.
The L display device 1 is completed.
【００２９】こうして完成したＥＬ表示装置１の背面電
極層１２と、透明電極３との間に交流電源１０から、１
００Ｖ、４００Ｈｚの交流電圧を印加すると、異方導電
性フィルム１１の押圧部分１３1〜１３3にある発光層４
には、発光層４が発光可能な程度に強い電圧が印加さ
れ、他方、異方導電性フィルムの押圧部分１３1〜１３3
以外の発光層には、発光層４が発光できない程度のごく
弱い電圧が印加される。従って、図２(ｂ)に示すよう
に、異方導電性フィルム１１の押圧部分１３1〜１３3の
発光層１４1〜１４3のみを発光させることができる。Between the back electrode layer 12 and the transparent electrode 3 of the EL display 1 completed in this way, an AC power source 10
00V, is applied to 400Hz AC voltage, light emitting layer in the pressing portion 131-134 3 anisotropic conductive film 11 4
The strong voltage to the extent the light emitting layer 4 is capable of emitting light is applied, while pressing portions 131-134 3 of the anisotropic conductive film
A very weak voltage is applied to the other light emitting layers such that the light emitting layer 4 cannot emit light. Accordingly, as shown in FIG. 2 (b), it is possible to emit only the light-emitting layer 14 1-14 3 pressing portions 131-134 3 anisotropic conductive film 11.
【００３０】以上説明したように、本実施形態のＥＬ表
示装置１では、ＥＬ表示装置１の使用者が、異方導電性
フィルム１１を背面電極層１２から、散在電極層７へ向
けて部分的に押圧するだけで、所望の領域の発光層４を
発光させることができるので、使用者が金属箔をエッチ
ングして背面電極を形成する必要がなく、従来のように
エッチング設備を有していなくても、所望の領域を発光
表示可能なＥＬ表示装置を製造することができる。As described above, in the EL display device 1 of the present embodiment, the user of the EL display device 1 partially moves the anisotropic conductive film 11 from the back electrode layer 12 toward the scattered electrode layer 7. , The light-emitting layer 4 in a desired region can be made to emit light, so that the user does not need to etch the metal foil to form the back electrode, and has no etching equipment as in the related art. Even so, an EL display device capable of emitting and displaying a desired region can be manufactured.
【００３１】また、透明電極３に電圧を印加するととも
に、背面電極層１２の一箇所に電圧を印加することで、
所望の領域の発光層４にのみ交流電圧を印加して発光さ
せることができるため、電気的に導通していない複数の
領域を表示するような場合でも、従来のように複数の背
面電極を高誘電体層上に形成し、各背面電極ごとに電源
を接続しなくともよいので、製造工程を簡略化すること
が可能になる。Further, by applying a voltage to the transparent electrode 3 and applying a voltage to one portion of the back electrode layer 12,
Since an AC voltage can be applied only to a desired area of the light emitting layer 4 to emit light, even when displaying a plurality of areas that are not electrically conductive, a plurality of back electrodes can be raised as in the related art. Since it is not necessary to form a power supply for each back electrode formed on the dielectric layer, the manufacturing process can be simplified.
【００３２】なお、本実施形態では、発光層４としてシ
アノエチル化セルロースなどの有機高分子中に、ＺｎＳ
等の蛍光性物質が混入されたものを用いているが、本発
明はこれに限らず、他の発光体、例えば、直流電圧を印
加するとそれ自身が発光する性質を有する有機ＥＬを用
いてもよい。In this embodiment, the light emitting layer 4 contains ZnS in an organic polymer such as cyanoethylated cellulose.
However, the present invention is not limited to this. For example, an organic EL having a property of emitting light by itself when a DC voltage is applied may be used. Good.
【００３３】[0033]
【発明の効果】所望の領域を発光表示することが可能な
ＥＬ表示装置を、簡単な製造工程で製造することができ
る。According to the present invention, an EL display device capable of emitting and displaying a desired area can be manufactured by a simple manufacturing process.
【図１】(ａ)：本発明のＥＬ表示装置の製造工程を説明
する第１の断面図 (ｂ)：本発明のＥＬ表示装置の製造工程を説明する第２
の断面図 (ｃ)：本発明のＥＬ表示装置の製造工程を説明する第３
の断面図 (ｄ)：本発明のＥＬ表示装置の製造工程を説明する第４
の断面図FIG. 1A is a first cross-sectional view illustrating a manufacturing process of an EL display device of the present invention. FIG. 1B is a second cross-sectional view illustrating a manufacturing process of an EL display device of the present invention.
Sectional view (c) of FIG. 3: third view for explaining the manufacturing process of the EL display device of the present invention.
Sectional view (d): Fourth view for explaining the manufacturing process of the EL display device of the present invention.
Cross section of
【図２】(ａ)：本発明のＥＬ表示装置を表示面からみた
図 (ｂ)：本発明のＥＬ表示装置が発光表示している状態を
説明する図2A is a view of the EL display device of the present invention viewed from the display surface. FIG. 2B is a diagram illustrating a state in which the EL display device of the present invention emits light.
【図３】(ａ)：従来のＥＬ表示装置の製造工程を説明す
る第１の断面図 (ｂ)：従来のＥＬ表示装置の製造工程を説明する第２の
断面図3A is a first cross-sectional view illustrating a manufacturing process of a conventional EL display device. FIG. 3B is a second cross-sectional diagram illustrating a manufacturing process of a conventional EL display device.
１…ＥＬ表示装置 ２…ガラス基板 ３…透明電極 ４
…発光層 ５…高誘電体層 ７…散在電極層 ８…絶縁
樹脂 ９…導電粒子 １０…交流電源 １１…異方導電
性フィルム １２…背面電極層DESCRIPTION OF SYMBOLS 1 ... EL display apparatus 2 ... Glass substrate 3 ... Transparent electrode 4
... Light emitting layer 5 ... High dielectric layer 7 ... Dispersed electrode layer 8 ... Insulating resin 9 ... Conductive particles 10 ... AC power supply 11 ... Anisotropic conductive film 12 ... Back electrode layer
Claims (3)
有し、 前記散在電極層と、前記透明電極層との間に電圧を印加
して、前記発光層を発光させるように構成されたことを
特徴とするＥＬ表示装置。A transparent substrate, a transparent electrode layer disposed on the transparent substrate, a light emitting layer disposed on the transparent electrode layer, and a scattered electrode layer scattered on the light emitting layer. Having an anisotropic conductive film disposed on the scattered electrode layer, wherein a voltage is applied between the scattered electrode layer and the transparent electrode layer to cause the light emitting layer to emit light. An EL display device.
が配置されたことを特徴とする請求項１記載のＥＬ表示
装置。2. The EL display device according to claim 1, wherein a back electrode layer is disposed on the anisotropic conductive film.
層から前記散在電極に向けて部分的に押圧されたことを
特徴とする請求項２記載のＥＬ表示装置。3. The EL display device according to claim 2, wherein the anisotropic conductive film is partially pressed from the back electrode layer toward the scattered electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34244198A JP4185605B2 (en) | 1998-12-02 | 1998-12-02 | EL display device and EL display device manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34244198A JP4185605B2 (en) | 1998-12-02 | 1998-12-02 | EL display device and EL display device manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000172206A true JP2000172206A (en) | 2000-06-23 |
| JP4185605B2 JP4185605B2 (en) | 2008-11-26 |
Family
ID=18353770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34244198A Expired - Fee Related JP4185605B2 (en) | 1998-12-02 | 1998-12-02 | EL display device and EL display device manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4185605B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1152643A1 (en) * | 2000-05-04 | 2001-11-07 | Schoenberg Elumic GmbH | Display having at least a luminescent surface |
-
1998
- 1998-12-02 JP JP34244198A patent/JP4185605B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1152643A1 (en) * | 2000-05-04 | 2001-11-07 | Schoenberg Elumic GmbH | Display having at least a luminescent surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4185605B2 (en) | 2008-11-26 |
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