JPS62182789A - Matrix el element - Google Patents
Matrix el elementInfo
- Publication number
- JPS62182789A JPS62182789A JP61023015A JP2301586A JPS62182789A JP S62182789 A JPS62182789 A JP S62182789A JP 61023015 A JP61023015 A JP 61023015A JP 2301586 A JP2301586 A JP 2301586A JP S62182789 A JPS62182789 A JP S62182789A
- Authority
- JP
- Japan
- Prior art keywords
- matrix
- layer
- light
- phosphor
- 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.)
- Pending
Links
- 239000011159 matrix material Substances 0.000 title claims description 16
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 4
- 239000003086 colorant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007278 cyanoethylation reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はＥ Ｌ （Ｅｌｅｃｔｒｏ−Ｌｕｍｉｎｅｓｃ
ｅｎｃｅ）素子の構造に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention is based on E L (Electro-Luminesc
ence) regarding the structure of the element.
〔従来の技術及び発明が解決しようとする問題点〕従来
、この種分散型マトリクスＥＬ素子は、例えば第９図及
び第１Ｏ図に示される如く、一方の！！ｌ縁性基板ｌ上
にＸ軸方向に沿って複数の帯状電極２ａ、２ｂ、・・・
・、 ２ｎを配列して成る背面電極と、他方のガラス
又はプラスチック等で成る透明絶縁性基板３上にＸ軸と
相直交するＹ軸方向に沿って複数の帯状電極４ａ、４ｂ
、・・・・、４ｎを配列して成る表面電極との間に、絶
縁層５及び発光体層６が夫々介在せしめられていると共
に、各々帯状電極は図示されていない駆動用電源回路に
接続されていて、所望のパターン表示発光がなされるよ
うに構成されている。例えば、第９図中、電極２ａ、’
ｌｂ及び電極４ａ、４ｂに電圧を印力ｕすると発光表示
面上のドソ） （ａ、ａ）、（ａ。[Prior Art and Problems to be Solved by the Invention] Conventionally, this type of distributed matrix EL device has been developed with one of the following methods, as shown in FIG. 9 and FIG. 1O, for example. ! A plurality of strip electrodes 2a, 2b, .
A plurality of strip-shaped electrodes 4a, 4b are arranged along the Y-axis direction perpendicular to the X-axis on the other transparent insulating substrate 3 made of glass, plastic, etc.
An insulating layer 5 and a light-emitting layer 6 are interposed between the surface electrode formed by arranging 4n electrodes, and each strip-shaped electrode is connected to a driving power supply circuit (not shown). and is configured to emit light in a desired pattern. For example, in FIG. 9, electrodes 2a,'
When a voltage is applied to lb and the electrodes 4a and 4b, the dots on the light emitting display surface (a, a), (a.
ｂ）、（ｂ、ａ）、（ｂ、ｂ）が発光せしめられる。更
に電極２ａ、２ｂ、・・・・、２ｎ及び電極４ａ、４ｂ
、・・・・、４ｎに電圧を印加すればドツト（ａ、ａ）
、（ａ、ｂ）、−・・−、（ａ、ｎ）、 ・−・・、（
ｎ、ａ）、・・・・、（ｎ、ｎ）が発光し、斬して発光
されるべきドツトに対応して所定の電極に電圧を印加す
ることにより所望のパターン表示が行なわれ得る。b), (b, a), and (b, b) are made to emit light. Further, electrodes 2a, 2b, ..., 2n and electrodes 4a, 4b
,..., if voltage is applied to 4n, dot (a, a)
, (a, b), ---, (a, n), ---, (
n, a), . . . , (n, n) emit light, and a desired pattern can be displayed by applying voltages to predetermined electrodes corresponding to the dots to be cut and emitted.
しかしなから、かかる従来のマトリクスＥＬ素子では、
その発光色は発光体層６を構成する螢光体の種類によっ
て一義的に定められ、しかも単一色に限られてしまい、
又、発光時、発光しているドツト間にぼやけが生して表
示パターンの鮮明度及びコントラスト等が十分に確保さ
れ得ない等、表示機能等に関する問題があった０本発明
はかかる実情に鑑み、表示機能が向上され得、優れた発
光特性を存するマトリクスＥＬ素子を提供することを目
的とする。However, in such a conventional matrix EL element,
The color of the emitted light is uniquely determined by the type of phosphor constituting the luminescent layer 6, and is limited to a single color.
In addition, when emitting light, there are problems with the display function, such as blurring between the emitting dots, making it impossible to ensure sufficient clarity and contrast of the display pattern.The present invention was developed in view of these circumstances. An object of the present invention is to provide a matrix EL device that can improve display function and has excellent light emission characteristics.
（問題点を解決するための手段及び作用）本発明による
ＥＬ素子では、透明絶縁基板上に、その帯状電極群に対
応して、赤色、緑色又は青色の螢光物質でなる螢光体層
が所望の配列に従って形成されている。従って、発光表
示面上のトノ）に対応する発光体層の発光によって励起
される螢光体層と発光されるべきドツトとが任意の組み
合わせになるように帯状電極群に電圧を印加することが
できるので全ての色の発光色が得られる。(Means and effects for solving the problems) In the EL device according to the present invention, a phosphor layer made of a red, green or blue fluorescent material is provided on a transparent insulating substrate corresponding to the strip electrode group. formed according to the desired arrangement. Therefore, it is possible to apply a voltage to the band-shaped electrode group so that the phosphor layer excited by the light emission of the light-emitting layer corresponding to the light-emitting display surface and the dot to be emitted form an arbitrary combination. As a result, all colors of emitted light can be obtained.
第１図乃至第８図は、本発明によるマトリクスＥし素子
の一実施例を示し、１は絶縁性成板、２はこの基板１上
に第３図及び第４図に示される如く一定方向（×方向）
へ相互に平行にエツチング又萎着等の手法によって形成
されると共に図示されていない駆動用電源回路へ接続せ
しめられている複数の帯状電極、３はガラス又はプラス
チック等で成る透明絶縁性基板、４は該基板３上に第５
図及び第６図に示される如くＸ軸と直交するＹ軸方向へ
相互に平行にエツチング等の手法によって形成されると
共に夫々駆動用電源回路へ接続せしめられている複数の
帯状電極、５はＢａＴｉ０□等の誘電体がシアノエチル
化等によって誘電率を高められた熱可塑性樹脂に分散せ
しめられて後絶縁性基板ｌ上に印刷等の手法により塗布
されて成る絶縁層、６はＺｎＳ、Ｃｕ又はＣ１等の発光
体がかかる熱可塑性樹脂に分散せしめられて後絶縁層５
上に印刷等の手法により塗布されて成る発光体層、７は
絶縁層５＆び発光体層６が熱圧着等によって基板１．３
間に固定せしめられて後又はその前に該透明絶縁性基板
３上に第７図及び第８図に示される如く帯状電極４に対
応しＹ軸方向へ相互に平行に赤色、緑色及び青色の発光
色を有する螢光体？、、７Ｇ、７．が印刷等によって順
次塗布されて成る螢光体層、８は螢光体７Ｒ，７Ｇ、７
１の間に介在せしめられた黒色塗料、９は螢光体層７側
に設けられた少なくともこれを覆い得る面積を有する紫
外線カットフィルターである。1 to 8 show an embodiment of the matrix E element according to the present invention, in which 1 is an insulating plate, 2 is a substrate 1 on which a matrix is formed in a certain direction as shown in FIGS. 3 and 4. (x direction)
A plurality of strip-shaped electrodes are formed in parallel to each other by etching or shrinking, and are connected to a driving power supply circuit (not shown); 3 is a transparent insulating substrate made of glass or plastic; 4 is the fifth
As shown in the figure and FIG. 6, a plurality of band-shaped electrodes 5 are made of BaTi0, which are formed by a method such as etching in parallel to each other in the Y-axis direction orthogonal to the X-axis, and are connected to the driving power supply circuit. □ is an insulating layer formed by dispersing a dielectric material such as □ in a thermoplastic resin whose dielectric constant has been increased by cyanoethylation, etc., and then applying it on an insulating substrate l by a method such as printing; 6 is ZnS, Cu or C1; After a luminescent material such as is dispersed in the thermoplastic resin, an insulating layer 5 is formed.
A luminescent layer 7 is formed by coating the insulating layer 5 and the luminescent layer 6 on the substrate 1.3 by thermocompression bonding or the like.
As shown in FIGS. 7 and 8, red, green, and blue colors are placed on the transparent insulating substrate 3 in parallel to each other in the Y-axis direction, corresponding to the strip electrodes 4, as shown in FIGS. 7 and 8. A phosphor with a luminescent color? ,,7G,7. A phosphor layer 8 is formed by sequentially applying phosphors 7R, 7G, 7 by printing or the like.
The black paint interposed between 1 and 9 is an ultraviolet cut filter provided on the phosphor layer 7 side and having an area that can at least cover the phosphor layer 7.
本発明によるマトリクスＥＬ素子は、上記のように構成
されているから、例えば、赤色の発光色とする場合には
、帯状電極２ａ、２ｂ、・・・・、２ｎ及び螢光体７Ｋ
に対応する帯状電極４ａ、４ｄ。Since the matrix EL element according to the present invention is configured as described above, for example, when emitting red light, the strip electrodes 2a, 2b, . . . , 2n and the phosphor 7K are used.
Band-shaped electrodes 4a, 4d corresponding to.
・・・・に電圧を印加するとドツト（ａ、ａ）、 （
ａ。When voltage is applied to..., dots (a, a), (
a.
ｂ）、（ａ、ｃ）、−−・、、 （ａ、ｎ）、（ｄ。b), (a, c), ---, (a, n), (d.
ａ）、（ｄ、ｂ）、（ｄ、ｃ）、−−−−、（ｄ。a), (d, b), (d, c), ----, (d.
ｎ）、・・・・に対応して発光体層６が夫々帯状電極４
ａ、４ｄ、・・・・に沿って発光せしめられ、この発光
（波長４００〜６００ｎｍ）によって少なくとも上記各
ドツトに対応する螢光体７Ｒの部分が励起されるので表
示面全体としては赤色発光を呈する。同様に、螢光体７
ｃ又は７．に対応する帯状電極４ｂ、４ｅ、・・・・又
は４ｃ、４ｆに電圧を印加することによって夫々緑色又
は青色の発光色を得ることができる。更に電圧を印加ず
べき帯状電極４を適宜選択することによって三色の中間
色が発光され１）る。又、帯状電極２，４の中からこれ
らの適宜の組み合わせで電圧を印加すれば、任意のドツ
トを発光させることができるので、所望の発光色を存す
る表示パターンを得ることができる。n),... The light emitting layer 6 is connected to the strip electrode 4,
a, 4d, etc., and this light emission (wavelength 400 to 600 nm) excites at least the portion of the phosphor 7R corresponding to each of the above dots, so that the display surface as a whole emits red light. present. Similarly, the phosphor 7
c or 7. By applying a voltage to the corresponding strip electrodes 4b, 4e, . . . or 4c, 4f, green or blue light emission can be obtained, respectively. Further, by appropriately selecting the strip electrode 4 to which voltage is not applied, three intermediate colors are emitted (1). Moreover, by applying voltages from the strip electrodes 2 and 4 in an appropriate combination, arbitrary dots can be made to emit light, so that a display pattern having a desired luminescent color can be obtained.
又、かかる発光の際、螢光体？Ｉ１．７．．７．の間に
黒色塗料８が介在せしめられているので各ドツト間に発
光のぼやけが生しることはなく極めてコントラストの強
い鮮明なパターン表示がなされ得、更にフィルター９に
よって、螢光体層７を励起せしめ得る例えば室内の螢光
燈等からの光が遮断され得るので該螢光燈等によって表
示機能が妨害されることはない。螢光体層７は上述の如
く発光体層６によって励起されるのであるが、発光表示
面全体として必ずしも一率で発光せしめられるとは限ら
ず、この場合には例えば螢光体７．．７Ｇ、７８自体の
幅を適宜変更することにより螢光体層７の発光強度を直
接的に調節したり、又は帯状電極４の幅を変えることに
より各ドツトの面積を変更して螢光体１）７を励起せし
めるべき発光体層６の発光強度を間接的に調節する等に
よって発光表示面の発光強度の均一化を図ることができ
る。Also, in the case of such light emission, is there a phosphor? I1.7. ．． 7. Since the black paint 8 is interposed between the dots, there is no blurring of the luminescence between the dots, and a clear pattern with extremely strong contrast can be displayed. Light from e.g. indoor fluorescent lights which may be energizing can be blocked out so that the display function is not disturbed by such fluorescent lights. Although the phosphor layer 7 is excited by the phosphor layer 6 as described above, the entire light-emitting display surface does not necessarily emit light at the same rate, and in this case, for example, the phosphor layer 7. ．． The luminescent intensity of the phosphor layer 7 can be directly adjusted by appropriately changing the widths of the phosphor 1 and 78, or the area of each dot can be changed by changing the width of the strip electrode 4. ) 7 can be made uniform by indirectly adjusting the emission intensity of the light emitting layer 6 that is to be excited.
尚、上記実施例における帯状電極２．４の形状は、これ
らが基板１．３上に形成されるに際し、例えば工、チン
グ等の手法によって如何なる形状にもなされ得るので、
発光表示面より見てかかる上下の電極２．４が相互に重
なり合う部分により画成されるドツトに対応して螢光体
層７を形成すれば、発光されるべき表示バクーンの自由
度は極めて拡大され得る。又、発光体層６の構成成分で
あるＺｎＳ、Ｃｕ、Ｃβ等の発光波長は通常４００〜６
００ｎｍ程度であり、これに対してはほぼ５００ｎｍ以
下の波長の光で励起され得る市販の螢光染料又は顔料等
が螢光体層７の材料として用いられるが、この螢光体層
７はこの他螢光を発する属性を有するものであれば如何
なる物質によって形成されてもよい。It should be noted that the shape of the strip electrodes 2.4 in the above embodiments can be made into any shape by, for example, machining, etching, etc. when they are formed on the substrate 1.3.
By forming the phosphor layer 7 corresponding to the dots defined by the mutually overlapping portions of the upper and lower electrodes 2.4 seen from the light emitting display surface, the degree of freedom of the display backlight to be emitted is greatly expanded. can be done. Further, the emission wavelength of ZnS, Cu, Cβ, etc., which are the constituent components of the luminescent layer 6, is usually 400 to 6
In contrast, commercially available fluorescent dyes or pigments that can be excited by light with a wavelength of approximately 500 nm or less are used as the material for the phosphor layer 7; It may be formed of any material as long as it has the property of emitting fluorescence.
上述のように本発明のマトリクスＥＬ素子は、その発光
特性が向上され得ると共に表示パターン及び発光色等極
めて多岐に亘って発光され得るので面光源として極めて
官用であり、実装された際には種々の効果がもたらされ
得る。As described above, the matrix EL element of the present invention has improved light emission characteristics and can emit light in a wide variety of display patterns and colors, so it is extremely useful as a surface light source, and when implemented, Various effects may be produced.
第１図乃至第８図は本発明によるマトリクスＥＬ素子の
一実施例を示し第１図及び第２図はその構造を表わす平
面図及び断面図、第３図及び第４図若しくは第５図及び
第６図は背面電極若しくは前面電極の夫々構造を示す平
面図及び側断面図、第７図及び第８図はこれら両電極及
び発光体層とが組み立てられた構造を示す平面図及び断
面図、第９図及び第１０図は従来のマトリクスＥＬ素子
の構造を示す平面図及び断面図である。
■、３・・・・基板、２．４・・・・帯状電極、５・・
・・絶縁層、６・・・・発光体層、７・０．・螢光体層
、８・・、・黒色塗料、９・・・・フィルター・４ａ
４ｂ ４ｃ ４ｄ ４ｅ ４ｆ
第３図 才４図
（Ｂ Ｂ １ｔＩＴ品）
４ ７ （ＣＣ賄め）
１ ′1 to 8 show an embodiment of the matrix EL element according to the present invention, and FIGS. 1 and 2 are plan and cross-sectional views showing the structure thereof, and FIGS. 3 and 4 or 5 and 6 is a plan view and a side sectional view showing the structure of the back electrode or the front electrode, FIGS. 7 and 8 are a plan view and a sectional view showing the structure in which both of these electrodes and the light emitting layer are assembled, FIGS. 9 and 10 are a plan view and a sectional view showing the structure of a conventional matrix EL element. ■, 3...Substrate, 2.4...Strip electrode, 5...
... Insulating layer, 6... Luminous layer, 7.0. - Fluorescent layer, 8..., Black paint, 9... Filter, 4a
4b 4c 4d 4e 4f Figure 3 Figure 4 (B B 1tIT product) 4 7 (CC cover)
1'
Claims (4)
び表面電極間に絶縁層及び発光体層を介在せしめて成る
マトリクスＥＬ素子において、上記表面電極上に少なく
とも上記両帯状電極によって画成されるドットに対応し
て赤色，緑色又は青色の螢光物質で成る螢光体層が形成
されていることを特徴とするマトリクスＥＬ素子。(1) In a matrix EL element in which an insulating layer and a light emitting layer are interposed between a back electrode and a front electrode, each of which is made of a substrate on which a strip electrode is formed, a matrix EL element is provided that is defined by at least both of the strip electrodes on the front surface electrode. 1. A matrix EL device characterized in that a phosphor layer made of a red, green or blue fluorescent material is formed corresponding to each dot.
いることを特徴とする特許請求の範囲（１）に記載のマ
トリクスＥＬ素子。(2) The matrix EL element according to claim (1), wherein a black paint is interposed between the phosphor layers.
被覆されていることを特徴とする特許請求の範囲（１）
に記載のマトリクスＥＬ素子。(3) Claim (1) characterized in that the phosphor layer is covered with an ultraviolet cut filter.
The matrix EL element described in .
線カットフィルターが取り付けられていることを特徴と
する特許請求の範囲（１）に記載のマトリクスＥＬ素子
。(4) The matrix EL device according to claim (1), further comprising an ultraviolet cut filter having the phosphor layer formed on the surface electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61023015A JPS62182789A (en) | 1986-02-06 | 1986-02-06 | Matrix el element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61023015A JPS62182789A (en) | 1986-02-06 | 1986-02-06 | Matrix el element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62182789A true JPS62182789A (en) | 1987-08-11 |
Family
ID=12098664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61023015A Pending JPS62182789A (en) | 1986-02-06 | 1986-02-06 | Matrix el element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62182789A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6440888A (en) * | 1987-08-06 | 1989-02-13 | Matsushita Electric Ind Co Ltd | Color el display device |
| US6181062B1 (en) | 1995-04-25 | 2001-01-30 | Citizen Watch Co., Ltd. | Multiple layered organic electroluminescent device structure with plural transparent electrode, color filters and organic/inorganic transparent coating to enhance light diffusion effects |
| JP2014132579A (en) * | 2002-10-18 | 2014-07-17 | Ifire Ip Corp | Color electroluminescent display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5569192A (en) * | 1978-11-17 | 1980-05-24 | Seiko Instr & Electronics | Luminescent display unit |
| JPS6084580A (en) * | 1983-10-17 | 1985-05-13 | 関西日本電気株式会社 | Manufacture of display |
-
1986
- 1986-02-06 JP JP61023015A patent/JPS62182789A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5569192A (en) * | 1978-11-17 | 1980-05-24 | Seiko Instr & Electronics | Luminescent display unit |
| JPS6084580A (en) * | 1983-10-17 | 1985-05-13 | 関西日本電気株式会社 | Manufacture of display |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6440888A (en) * | 1987-08-06 | 1989-02-13 | Matsushita Electric Ind Co Ltd | Color el display device |
| US6181062B1 (en) | 1995-04-25 | 2001-01-30 | Citizen Watch Co., Ltd. | Multiple layered organic electroluminescent device structure with plural transparent electrode, color filters and organic/inorganic transparent coating to enhance light diffusion effects |
| JP2014132579A (en) * | 2002-10-18 | 2014-07-17 | Ifire Ip Corp | Color electroluminescent display device |
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