JPH07153573A - Luminous panel - Google Patents
Luminous panelInfo
- Publication number
- JPH07153573A JPH07153573A JP5321003A JP32100393A JPH07153573A JP H07153573 A JPH07153573 A JP H07153573A JP 5321003 A JP5321003 A JP 5321003A JP 32100393 A JP32100393 A JP 32100393A JP H07153573 A JPH07153573 A JP H07153573A
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- emitting layer
- transparent
- panel
- color
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 8
- 239000003086 colorant Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005525 hole transport Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- -1 phenylene vinylene Chemical group 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- QZVHYFUVMQIGGM-UHFFFAOYSA-N 2-Hexylthiophene Chemical compound CCCCCCC1=CC=CS1 QZVHYFUVMQIGGM-UHFFFAOYSA-N 0.000 description 1
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/17—Passive-matrix OLED displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
(57)【要約】
【目的】 製造プロセスを複雑にすることのない単純な
構造のカラー表示発光パネルを提供する。
【構成】 透明基板１１と、その一方の面にストリップ
状に形成されかつ平行に配置された複数の透明電極１２
と、透明電極１２上にストリップ状に形成されかつ平行
に配置されるとともに透明電極１２と直交して配置され
た発光層１３と、発光層１３上にその長さ方向に沿って
形成された背面電極１４とを有した発光パネル１０であ
る。発光層１３がそれぞれ赤色、緑色、青色の各発光層
１３ａ、１３ｂ、１３ｃのうちのいずれか一つから構成
されるとともに、これら三色の発光層が色毎に同順序で
繰り返し配列されている。
(57) [Summary] [Object] To provide a color display light-emitting panel having a simple structure without complicating the manufacturing process. [Structure] A transparent substrate 11 and a plurality of transparent electrodes 12 formed in a strip shape and arranged in parallel on one surface thereof.
And a light emitting layer 13 formed in a strip shape on the transparent electrode 12 and arranged in parallel with each other and arranged orthogonal to the transparent electrode 12, and a back surface formed on the light emitting layer 13 along its length direction. It is a light emitting panel 10 having an electrode 14. The light emitting layer 13 is composed of any one of the red, green, and blue light emitting layers 13a, 13b, and 13c, and these three color light emitting layers are repeatedly arranged in the same order for each color. .
Description
【０００１】[0001]
【産業上の利用分野】本発明はエレクトロルミネッセン
ス素子（ＥＬ素子）等からなる発光パネルにかかり、詳
しくはカラー表示の発光パネルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting panel including an electroluminescence element (EL element) and the like, and more particularly to a color display light emitting panel.
【０００２】[0002]
【従来の技術】従来ＥＬ素子からなる発光パネルとして
は、例えば図４に示すようなものが知られている。この
発光パネル１は、透明基板２上にＩＴＯ等からなるスト
リップ状の透明電極３…が平行に形成され、該透明電極
３…上および透明基板２の露出面上に単一の発光層４が
蒸着、コーティング、印刷等の方法を用いて形成され、
さらにその上に前記透明電極３…と直交するようにして
ストリップ状の背面電極５…が形成されたマトリックス
構造のものである。ところで、このような発光パネル１
では、発光層４が単一材料でシート状に形成されている
ため、単色での表示しか得られず、多色によるカラー表
示が行えないといった不満があった。2. Description of the Related Art As a conventional light emitting panel composed of EL elements, for example, one shown in FIG. 4 is known. In this light emitting panel 1, strip-shaped transparent electrodes 3 made of ITO or the like are formed in parallel on a transparent substrate 2, and a single light emitting layer 4 is formed on the transparent electrodes 3 ... And on the exposed surface of the transparent substrate 2. Formed using methods such as vapor deposition, coating, printing,
Further, it has a matrix structure in which strip-shaped back electrodes 5 are formed so as to be orthogonal to the transparent electrodes 3. By the way, such a light emitting panel 1
However, since the light emitting layer 4 is formed of a single material in a sheet shape, there is a complaint that only a single color display can be obtained and a multicolor display cannot be performed.
【０００３】また、このような発光パネル１において前
記不満を解消するべくカラー表示化したものとしては、
例えば図５に示すような発光パネル６が提案されてい
る。この発光パネル６は、図４に示した発光パネル１に
おいて、透明基板２と透明電極３…との間にカラーフィ
ルタ７を設けたものである。ここで、カラーフィルタ７
としては３原色のスペクトルを含んだものが用いられ、
一層でこれに対応できない場合には二層あるいは三層で
構成されたものが用いられる。Further, as the color display in order to eliminate the dissatisfaction in the light emitting panel 1 as described above,
For example, a light emitting panel 6 as shown in FIG. 5 has been proposed. The light emitting panel 6 is the same as the light emitting panel 1 shown in FIG. 4, except that a color filter 7 is provided between the transparent substrate 2 and the transparent electrodes 3. Here, the color filter 7
Is used that contains the spectrum of the three primary colors,
If one layer cannot accommodate this, a two-layer or three-layer structure is used.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、図５に
示した構成の発光パネル６では、透明電極３…を透明基
板２上でなくカラーフィルタ７上に形成することから、
製造プロセスが図４に示したものと大きく異なってしま
い、また、特に複数層でカラーフィルタ７を形成する場
合にはプロセスそのものが複雑になってしまうといった
問題があり、さらに発光材料もカラーフィルタに対応さ
せる必要上その種類（材質）が限定されてしまうといっ
た問題や、カラーフィルタによって透過光の強度が弱め
られるといった問題がある。However, in the light emitting panel 6 having the structure shown in FIG. 5, since the transparent electrodes 3 are formed on the color filter 7 instead of on the transparent substrate 2,
The manufacturing process is significantly different from that shown in FIG. 4, and there is a problem that the process itself becomes complicated particularly when the color filter 7 is formed of a plurality of layers. There is a problem that the type (material) is limited due to the need for compatibility, and that the intensity of transmitted light is weakened by the color filter.
【０００５】本発明は前記事情に鑑みてなされたもの
で、その目的とするところは、製造プロセスを複雑にす
ることのない単純な構造のカラー表示発光パネルを提供
することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide a color display light emitting panel having a simple structure without complicating the manufacturing process.
【０００６】[0006]
【課題を解決するための手段】本発明の発光パネルで
は、透明基板と、その一方の面にストリップ状に形成さ
れかつ平行に配置された複数の透明電極と、該透明電極
上にストリップ状に形成されかつ平行に配置されるとと
もに該透明電極と直交して配置された発光層と、該発光
層上に該発光層の長さ方向に沿って形成された背面電極
とを備え、前記発光層がそれぞれ赤色、緑色、青色の各
発光層のうちのいずれか一つから構成されるとともに、
これら三色の発光層が色毎に同順序で繰り返し配列され
てなることを前記課題の解決手段とした。In a light emitting panel of the present invention, a transparent substrate, a plurality of transparent electrodes formed in a strip shape on one surface of the transparent substrate and arranged in parallel, and a strip shape on the transparent electrode. The light emitting layer includes a light emitting layer formed and arranged in parallel and orthogonal to the transparent electrode, and a back electrode formed on the light emitting layer along the length direction of the light emitting layer. Is composed of any one of the red, green, and blue light emitting layers, respectively,
The light emitting layers of these three colors are repeatedly arranged in the same order for each color, which is the means for solving the above problems.
【０００７】[0007]
【作用】本発明の発光パネルによれば、透明電極と背面
電極との間に各色の発光層を形成したことから従来の単
色表示のパネルに近い単純な構造となり、したがって透
明基板上に透明電極を形成することができるなど従来の
製造プロセスを大きく変える必要がなくなってその製造
プロセスが単純化される。また、発光層自体を３原色化
するとともに発光層を規則的に配列したことから、これ
ら各発光層を適宜組み合わせて駆動させることによりカ
ラー表示が可能になる。According to the light emitting panel of the present invention, since the light emitting layer of each color is formed between the transparent electrode and the back electrode, the structure is simpler than that of a conventional monochromatic display panel. Therefore, the transparent electrode is formed on the transparent substrate. The manufacturing process is simplified because it is not necessary to significantly change the conventional manufacturing process, such as the formation of Further, since the light emitting layer itself has three primary colors and the light emitting layers are regularly arranged, color display can be performed by appropriately combining and driving these light emitting layers.
【０００８】[0008]
【実施例】図１は本発明の発光パネルをＥＬ表示素子か
らなるマトリックスカラー表示用の発光パネルに適用し
た場合の一実施例を示す図であり、この図において符号
１０は発光パネル、１１は透明基板である。透明基板１
１は、ガラス、プラスチック、プラスチックフィルム等
の透明材料からなるもので、その一方の面にはストリッ
プ状に形成された透明電極１２が複数平行に配置されて
いる。透明電極１２…はＩＴＯ等からなるもので、所定
の幅で形成され、かつ所定の間隔をおいて配列されたも
のである。これら透明電極１２…上、および該透明電極
１２…が形成されていない透明基板１１の上には、赤色
発光層１３ａ、緑色発光層１３ｂ、青色発光層１３ｃが
それぞれ形成されている。FIG. 1 is a diagram showing an embodiment in which the light emitting panel of the present invention is applied to a light emitting panel for matrix color display composed of EL display elements, in which reference numeral 10 is a light emitting panel and 11 is a light emitting panel. It is a transparent substrate. Transparent substrate 1
1 is made of a transparent material such as glass, plastic, or a plastic film, and a plurality of transparent electrodes 12 formed in strips are arranged in parallel on one surface thereof. The transparent electrodes 12 are made of ITO or the like, are formed with a predetermined width, and are arranged at a predetermined interval. A red light emitting layer 13a, a green light emitting layer 13b, and a blue light emitting layer 13c are respectively formed on the transparent electrodes 12 ... And on the transparent substrate 11 on which the transparent electrodes 12 ... Are not formed.
【０００９】これら赤色発光層１３ａ、緑色発光層１３
ｂ、青色発光層１３ｃは、いずれもストリップ状に形成
され、かつ互いに平行して配置されるとともに、前記透
明電極１２…と直交して配置されたものである。また、
これら赤色発光層１３ａ、緑色発光層１３ｂ、青色発光
層１３ｃは、互いに同順序で繰り返し配列され、すなわ
ちこの例では赤色発光層１３ａ、緑色発光層１３ｂ、青
色発光層１３ｃ、赤色発光層１３ａ、緑色発光層１３
ｂ、青色発光層１３ｃ…の順に規則的に配列されたもの
である。These red light emitting layer 13a and green light emitting layer 13
The blue light emitting layer 13c and the blue light emitting layer 13c are both formed in a strip shape, arranged in parallel with each other, and arranged orthogonal to the transparent electrodes 12 ... Also,
The red light emitting layer 13a, the green light emitting layer 13b, and the blue light emitting layer 13c are repeatedly arranged in the same order, that is, in this example, the red light emitting layer 13a, the green light emitting layer 13b, the blue light emitting layer 13c, the red light emitting layer 13a, and the green light emitting layer 13c. Light emitting layer 13
b, the blue light emitting layers 13c ... Are regularly arranged in this order.
【００１０】なお、これら各発光層１３ａ、１３ｂ、１
３ｃは、具体的には、例えばチタン酸バリウム等の誘電
体を母材とし、赤色発光層１３ａとしてはＣａＳ：Ｅｕ
等を、緑色発光層１３ｂとしてはＺｎＳ：Ｔｂ，Ｆ等
を、また青色発光層１３ｃとしてはＺｎＳ：Ｔｍ，Ｆ等
を発光材料として用いた無機材料、あるいはポリ（３−
ｎ−ヘキシルチオフェン）等のポリ（アルキルチオフェ
ン）、及びフェニレンビニレン、チエニレンビニレン、
ピロール、アニリン、フルオレン等の誘導体の重合物な
どの導電性高分子に、発光材料としてクマリン系（緑〜
黄色）、ペリレン系（赤色）、オキサゾール系（緑〜黄
色）、オキサジン系、ナフタレン系（青色）、キノロン
系等の蛍光色素を適宜添加分散した有機材料などが用い
られる。The light emitting layers 13a, 13b, 1
3c is specifically made of a dielectric material such as barium titanate as a base material, and the red light emitting layer 13a is made of CaS: Eu.
Or the like, ZnS: Tb, F or the like for the green light emitting layer 13b, and ZnS: Tm, F or the like for the blue light emitting layer 13c, or poly (3-).
poly (alkylthiophene) such as n-hexylthiophene), and phenylene vinylene, thienylene vinylene,
For conductive polymers such as polymers of derivatives such as pyrrole, aniline, and fluorene, coumarin-based (green ~
Organic materials in which fluorescent dyes such as yellow), perylene (red), oxazole (green to yellow), oxazine, naphthalene (blue), and quinolone are appropriately added and dispersed are used.
【００１１】また、これら各発光層１３ａ、１３ｂ、１
３ｃ上には、該発光層１３ａ（１３ｂ、１３ｃ）のそれ
ぞれの上面（透明電極１２と反対側の面）を長さ方向に
沿って背面電極１４…がストリップ状に形成されてい
る。背面電極１４…は、各発光層１３ａ、１３ｂ、１３
ｃと同じかそれ以下の幅を有する金属性のもので、この
例ではＩｎ、Ｍｇ、Ｃａ等の仕事関数の低い、すなわち
電子注入性の高い金属が用いられている。このような金
属が背面電極１４…とされることにより、各電極（透明
電極１２…、背面電極１４…）からのキャリア（ホー
ル、電子）の注入および各発光層１３ａ、３ｂ、１３ｃ
内での再結合が効率よく行われ、結果として得られた発
光パネル１０は発光性能の高いものとなっている。ま
た、背面電極１４…は、各発光層１３ａ、１３ｂ、１３
ｃと同じかそれ以下の幅に形成されているので、透明基
板１１側からは見えず、外観や表示品質を損なうことが
ない。Further, each of these light emitting layers 13a, 13b, 1
On the upper surface of 3c, back electrodes 14 ... Are formed in strips on the upper surface (surface opposite to the transparent electrode 12) of each of the light emitting layers 13a (13b, 13c) along the length direction. The back electrodes 14 ... Are each of the light emitting layers 13a, 13b, 13
A metal having a width equal to or smaller than c, and in this example, a metal having a low work function such as In, Mg, and Ca, that is, having a high electron injecting property is used. By using such a metal as the back electrode 14, ..., Injection of carriers (holes, electrons) from each electrode (transparent electrode 12, ..., Back electrode 14) and each light emitting layer 13a, 3b, 13c.
The recombination in the inside is efficiently performed, and the light emitting panel 10 obtained as a result has high light emitting performance. In addition, the back electrodes 14 ... Are each of the light emitting layers 13a, 13b, 13
Since it is formed with a width equal to or smaller than c, it cannot be seen from the transparent substrate 11 side, and the appearance and display quality are not impaired.
【００１２】このような発光パネル１０を作製するに
は、例えば蒸着法やスパッタ法によって予めＩＴＯ等の
透明電極膜を形成した透明基板１１を用意し、該透明電
極膜をエッチング等によりストリップ状でかつそれぞれ
が平行となるようにパターン化して透明電極１２…を形
成する。To manufacture such a light-emitting panel 10, a transparent substrate 11 having a transparent electrode film such as ITO formed in advance by a vapor deposition method or a sputtering method is prepared, and the transparent electrode film is stripped by etching or the like. Further, the transparent electrodes 12 ... Are formed by patterning so as to be parallel to each other.
【００１３】次に、透明基板１１および透明電極１２…
上に、蒸着、印刷、コーティング、フォトリソグラフィ
ー、電解重合、電解合成、電着塗装等の手法を用いて赤
色発光層１３ａ、緑色発光層１３ｂ、青色発光層１３ｃ
を形成する。この場合、各発光層１３ａ、１３ｂ、１３
ｃ…を同時に形成してもよく、また赤色発光１３ａ…を
形成した後緑色発光層１３ｂ…を、さらにその後青色発
光層１３ｃ…を形成するといったように各色毎に順番に
形成してもよい。なお、各発光層１３ａ、１３ｂ、１３
ｃ…については、ストリップ状に形成し、かつ互いに平
行になるとともに透明電極１２…に対して直交するよう
形成配置するのはもちろんである。その後、各発光層１
３ａ、１３ｂ、１３ｃ…上、および透明電極１２…、透
明電極１２…間に露出する透明基板１１を覆うようにし
て蒸着法、スパッタ法等によりＩｎ、Ｍｇ、Ｃａ等の金
属層を形成し、さらにエッチング等によりストリップ状
にパターン化して背面電極１４…を形成し、発光パネル
を得る。Next, the transparent substrate 11 and the transparent electrode 12 ...
A red light emitting layer 13a, a green light emitting layer 13b, and a blue light emitting layer 13c are formed on the upper surface by methods such as vapor deposition, printing, coating, photolithography, electrolytic polymerization, electrolytic synthesis, and electrodeposition coating.
To form. In this case, each of the light emitting layers 13a, 13b, 13
c may be formed at the same time, or the green light emitting layers 13b may be formed after the red light emission 13a is formed, and then the blue light emitting layers 13c may be formed in sequence such that each color is formed. In addition, each light emitting layer 13a, 13b, 13
It is needless to say that c ... Is formed in a strip shape, and is formed and arranged so as to be parallel to each other and orthogonal to the transparent electrodes 12. Then, each light emitting layer 1
3a, 13b, 13c ... and a metal layer of In, Mg, Ca or the like is formed by a vapor deposition method, a sputtering method or the like so as to cover the transparent substrate 11 exposed above and between the transparent electrodes 12 ... Further, the back electrodes 14 are formed by patterning into strips by etching or the like to obtain a light emitting panel.
【００１４】また、このようにして得られた発光パネル
１０を駆動させる場合には、透明電極１２…を走査しな
がら各透明電極１２の走査タイミングに同期してその透
明電極１２上にて表示すべきデータを供給し、赤色、緑
色、青色の各発光層１３ａ、１３ｂ、１３ｃを発光させ
る、いわゆる時分割駆動とすればよく、これにより発光
パネル１０はフルカラー表示が可能になるWhen the light-emitting panel 10 thus obtained is driven, the transparent electrodes 12 are scanned and displayed on the transparent electrodes 12 in synchronization with the scanning timing of each transparent electrode 12. Data is supplied and the red, green, and blue light emitting layers 13a, 13b, and 13c are made to emit light, so-called time-division driving is performed, which enables the light emitting panel 10 to perform full-color display.
【００１５】このような発光パネル１０にあっては、透
明電極１２…上に各発光層１３ａ、１３ｂ、１３ｃ…を
形成したことから、図４に示した従来の発光パネル１の
ようにカラー表示でなく単色表示のパネルに近い単純な
構造となり、したがって透明基板１１上に透明電極１２
…を形成することができるなど従来の製造プロセスを大
きく変えることなく製造することができる。また、発光
層自体を３原色化するとともに発光層１３ａ、１３ｂ、
１３ｃ…を規則的に配列したことから、これら各発光層
１３ａ、１３ｂ、１３ｃ…を適宜組み合わせて駆動させ
ることによりカラー表示を行うことができる。したがっ
て、図５に示した発光パネル６のようにカラーフィルタ
７を用いる必要がないことから、透過光が弱められると
いった不都合がなくなる。In such a light emitting panel 10, since the light emitting layers 13a, 13b, 13c ... Are formed on the transparent electrodes 12 ..., Color display as in the conventional light emitting panel 1 shown in FIG. Instead, it has a simple structure similar to a panel of a single color display, and therefore the transparent electrode 12 is formed on the transparent substrate 11.
It can be manufactured without making a great change to the conventional manufacturing process, such as the formation of ... Further, the light emitting layer itself is made into three primary colors and the light emitting layers 13a, 13b,
Since 13c ... Are regularly arranged, color display can be performed by appropriately driving these light emitting layers 13a, 13b, 13c. Therefore, since it is not necessary to use the color filter 7 unlike the light emitting panel 6 shown in FIG. 5, there is no inconvenience that the transmitted light is weakened.
【００１６】なお、前記実施例では発光層１３ａ、１３
ｂ、１３ｃ…をそれぞれ一層とする構造の発光パネルに
ついて説明したが、例えば図２に示すように正孔輸送層
１６と電子輸送層１７とから各発光層が形成される、い
わゆるシングルヘテロ構造（正孔輸送層あるいは電子輸
送層のいずれか一方を発光層とする）の発光パネルとし
てもよく、さらに図３に示すように正孔輸送層１８と発
光層１９と電子輸送層２０とから各発光層が形成され
る、いわゆるダブルヘテロ構造の発光パネルとしてもよ
い。また、発光層１３ａ、１３ｂ、１３ｃ…と、透明電
極１２…または背面電極１４…との間に誘電体層を介在
させる構造を採用することもできる。In the above embodiment, the light emitting layers 13a, 13a
Although the light emitting panel having a structure in which each of b, 13c ... Is formed as one layer has been described, for example, as shown in FIG. 2, each light emitting layer is formed of the hole transport layer 16 and the electron transport layer 17, so-called single hetero structure ( Either the hole transport layer or the electron transport layer is used as the light emitting layer), and as shown in FIG. 3, the hole transport layer 18, the light emitting layer 19, and the electron transport layer 20 respectively emit light. A light emitting panel having a so-called double hetero structure in which layers are formed may be used. It is also possible to employ a structure in which a dielectric layer is interposed between the light emitting layers 13a, 13b, 13c ... And the transparent electrode 12 ... Or the back electrode 14 ...
【００１７】また、前記実施例において、特に透明基板
１１としてポリエチレンフィルムやポリエステルフィル
ム等の長尺状の透明フィルムを用いれば、本発明の発光
パネルをフレキシブルな表示パネルとすることができ、
さらにその場合、各発光層１３ａ、１ｂ、１３ｃ…の形
成として電解めっき法や電解重合法等の湿式法を用いれ
ばロール・トゥ・ロールの製造方法を用いて連続的に製
造することができ、これによりその生産性を上げ、コス
トダウンを図ることができる。Further, in the above-described embodiment, particularly when a long transparent film such as a polyethylene film or a polyester film is used as the transparent substrate 11, the light emitting panel of the present invention can be a flexible display panel.
Further, in that case, if a wet method such as an electrolytic plating method or an electrolytic polymerization method is used for forming each of the light emitting layers 13a, 1b, 13c, ..., It can be continuously manufactured by using a roll-to-roll manufacturing method. As a result, the productivity can be increased and the cost can be reduced.
【００１８】[0018]
【発明の効果】以上説明したように本発明の発光パネル
は、透明電極と背面電極との間に各色の発光層を形成し
て従来の単色表示のパネルに近い単純な構造にしたもの
であるから、例えば透明基板上に透明電極を形成するこ
とができるなど従来の製造プロセスを大きく変える必要
がなくなってその製造プロセスを単純化することがで
き、既存の設備をそのまま用いることなどによって生産
コストの増大を抑制することができる。また、発光層自
体を３原色化するとともに発光層を規則的に配列し、こ
れによってカラー表示を可能にしたものであるから、例
えば従来のカラーフィルタを用いたもののごとくカラー
フィルタによって透過光の強度が弱められるといった不
都合がなくなり、高効率でシャープなカラー表示を実現
することができる。As described above, the light emitting panel of the present invention has a simple structure similar to a conventional monochromatic display panel by forming the light emitting layer of each color between the transparent electrode and the back electrode. Therefore, it is not necessary to significantly change the conventional manufacturing process, for example, a transparent electrode can be formed on a transparent substrate, and the manufacturing process can be simplified. The increase can be suppressed. In addition, since the light emitting layer itself is made into three primary colors and the light emitting layers are regularly arranged to enable color display, the intensity of transmitted light is changed by a color filter like a conventional color filter is used. It is possible to realize a highly efficient and sharp color display without the inconvenience of being weakened.
【図１】本発明の発光パネルの一実施例を示す要部斜視
図。FIG. 1 is a perspective view of a main part showing an embodiment of a light emitting panel of the present invention.
【図２】本発明の他の実施例を示す側断面図。FIG. 2 is a side sectional view showing another embodiment of the present invention.
【図３】本発明の他の実施例を示す側断面図。FIG. 3 is a side sectional view showing another embodiment of the present invention.
【図４】従来の発光パネルの一例を示す要部斜視図。FIG. 4 is a perspective view of a main part showing an example of a conventional light emitting panel.
【図５】従来の発光パネルの他の例を示す要部斜視図。FIG. 5 is a perspective view of a main part showing another example of a conventional light emitting panel.
１０ 発光パネル １１ 透明基板 １２ 透明電極 １３ａ 赤色発光層 １３ｂ 緑色発光層 １３ｃ 青色発光層 １４ 背面電極 10 Light-Emitting Panel 11 Transparent Substrate 12 Transparent Electrode 13a Red Light-Emitting Layer 13b Green Light-Emitting Layer 13c Blue Light-Emitting Layer 14 Back Electrode
Claims (1)
状に形成されかつ平行に配置された複数の透明電極と、
該透明電極上にストリップ状に形成されかつ平行に配置
されるとともに該透明電極と直交して配置された発光層
と、該発光層上に該発光層の長さ方向に沿って形成され
た背面電極とを具備してなり、前記発光層がそれぞれ赤
色、緑色、青色の各発光層のうちのいずれか一つから構
成されるとともに、これら三色の発光層が色毎に同順序
で繰り返し配列されてなることを特徴とする発光パネ
ル。1. A transparent substrate, and a plurality of transparent electrodes formed in a strip shape and arranged in parallel on one surface thereof.
A light emitting layer formed in a strip shape on the transparent electrode and arranged in parallel and orthogonal to the transparent electrode, and a back surface formed on the light emitting layer along the length direction of the light emitting layer. An electrode, the light emitting layer is composed of any one of red, green, and blue light emitting layers, and the three color light emitting layers are repeatedly arranged in the same order for each color. A light-emitting panel characterized by being formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5321003A JPH07153573A (en) | 1993-11-25 | 1993-11-25 | Luminous panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5321003A JPH07153573A (en) | 1993-11-25 | 1993-11-25 | Luminous panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07153573A true JPH07153573A (en) | 1995-06-16 |
Family
ID=18127706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5321003A Pending JPH07153573A (en) | 1993-11-25 | 1993-11-25 | Luminous panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07153573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165543A (en) * | 1998-06-17 | 2000-12-26 | Nec Corporation | Method of making organic EL device and organic EL transfer base plate |
| US6341994B1 (en) | 1999-01-13 | 2002-01-29 | Nec Corporation | Organic electroluminescent display device and method of manufacturing the same |
| JP2006261611A (en) * | 2005-03-18 | 2006-09-28 | Fuji Photo Film Co Ltd | Organic electroluminescent device and display device |
-
1993
- 1993-11-25 JP JP5321003A patent/JPH07153573A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165543A (en) * | 1998-06-17 | 2000-12-26 | Nec Corporation | Method of making organic EL device and organic EL transfer base plate |
| US6341994B1 (en) | 1999-01-13 | 2002-01-29 | Nec Corporation | Organic electroluminescent display device and method of manufacturing the same |
| US6462470B1 (en) | 1999-01-13 | 2002-10-08 | Nec Corporation | Organic electroluminescent display with three kinds of layer-stacked devices |
| JP2006261611A (en) * | 2005-03-18 | 2006-09-28 | Fuji Photo Film Co Ltd | Organic electroluminescent device and display device |
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