JPH0668977A - Multicolored electroluminescence display device - Google Patents
Multicolored electroluminescence display deviceInfo
- Publication number
- JPH0668977A JPH0668977A JP4216104A JP21610492A JPH0668977A JP H0668977 A JPH0668977 A JP H0668977A JP 4216104 A JP4216104 A JP 4216104A JP 21610492 A JP21610492 A JP 21610492A JP H0668977 A JPH0668977 A JP H0668977A
- Authority
- JP
- Japan
- Prior art keywords
- display device
- electroluminescent
- image
- displayed
- layer
- 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
- 238000005401 electroluminescence Methods 0.000 title abstract 5
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 3
- -1 poly-pt-butylstyrene Polymers 0.000 description 3
- PJANXHGTPQOBST-UHFFFAOYSA-N trans-Stilbene Natural products C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 3
- PJANXHGTPQOBST-VAWYXSNFSA-N trans-stilbene Chemical compound C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 3
- KLCLIOISYBHYDZ-UHFFFAOYSA-N 1,4,4-triphenylbuta-1,3-dienylbenzene Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)=CC=C(C=1C=CC=CC=1)C1=CC=CC=C1 KLCLIOISYBHYDZ-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-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
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000004866 oxadiazoles Chemical class 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 235000021286 stilbenes Nutrition 0.000 description 2
- LXVOEIQSRUCJFV-UHFFFAOYSA-N 1,3-benzothiazole;1,4-diethynylbenzene Chemical compound C1=CC=C2SC=NC2=C1.C1=CC=C2SC=NC2=C1.C#CC1=CC=C(C#C)C=C1 LXVOEIQSRUCJFV-UHFFFAOYSA-N 0.000 description 1
- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 description 1
- WISWLZYHZLVSMO-UHFFFAOYSA-N 6-phenyl-2-(4-phenylphenyl)-1,3-benzoxazole Chemical group C1=CC=CC=C1C1=CC=C(C=2OC3=CC(=CC=C3N=2)C=2C=CC=CC=2)C=C1 WISWLZYHZLVSMO-UHFFFAOYSA-N 0.000 description 1
- 239000005725 8-Hydroxyquinoline Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229960003540 oxyquinoline Drugs 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
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002102 polyvinyl toluene Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- JLZUZNKTTIRERF-UHFFFAOYSA-N tetraphenylethylene Chemical group C1=CC=CC=C1C(C=1C=CC=CC=1)=C(C=1C=CC=CC=1)C1=CC=CC=C1 JLZUZNKTTIRERF-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- JFLKFZNIIQFQBS-FNCQTZNRSA-N trans,trans-1,4-Diphenyl-1,3-butadiene Chemical compound C=1C=CC=CC=1\C=C\C=C\C1=CC=CC=C1 JFLKFZNIIQFQBS-FNCQTZNRSA-N 0.000 description 1
- 125000006617 triphenylamine group Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、透明基板上に少なくと
もストライプ状に並列した透明電極と、電界発光層と、
前記透明電極のストライプと交差する方向のストライプ
状に並列した上部電極とを積層し、前記両電極のそれぞ
れ選択したストライプ間に電圧を印加して両電極の選択
されたストライプの前記交差する位置の電界発光層部分
を発光させ前記透明基板側に出射させる電界発光表示装
置に関し、特にカラー画像等の多色画像を表示し得る多
色電界発光表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent electrode having at least stripes arranged in parallel on a transparent substrate, and an electroluminescent layer.
The transparent electrode stripe and the upper electrode arranged in parallel in a stripe shape in a direction intersecting with each other are laminated, and a voltage is applied between the stripes selected in the both electrodes to apply a voltage to the crossed position of the selected stripes in both electrodes. The present invention relates to an electroluminescent display device in which an electroluminescent layer portion emits light and emits the light toward the transparent substrate side, and more particularly to a multicolor electroluminescent display device capable of displaying a multicolor image such as a color image.
【０００２】[0002]
【従来の技術】特開平2-66873号公報や特開平3-283294
号公報は単色画像を表示する上述の電界発光表示装置を
開示している。2. Description of the Related Art JP-A-2-66873 and JP-A-3-283294
The publication discloses the above-mentioned electroluminescent display device for displaying a monochromatic image.
【０００３】一方、特開平3-261182号公報は透明電極と
上部電極とがそれぞれ並置された電子注入電極と正孔注
入電極とから成っていて互いの電子注入電極と正孔注入
電極とを対向させており、透明電極と上部電極の間には
電子の流入と正孔の流出を阻止する中間層を挟んで発光
色の異なる２種の発光層が設けられていて、透明電極と
上部電極の間に印加する電圧の極性を切換えることによ
り発光する発光層が切換わって発光色が変化する多色有
機発光素子を開示しているが、これではカラー画像表示
装置を得ることはできない。On the other hand, JP-A-3-261182 discloses an electron injection electrode and a hole injection electrode in which a transparent electrode and an upper electrode are juxtaposed, and the electron injection electrode and the hole injection electrode face each other. Two kinds of light emitting layers having different emission colors are provided between the transparent electrode and the upper electrode with an intermediate layer for blocking the inflow of electrons and the outflow of holes interposed between the transparent electrode and the upper electrode. Although a multicolor organic light emitting element in which a light emitting layer that emits light is switched by switching the polarity of a voltage applied between them to change the emission color, a color image display device cannot be obtained.
【０００４】また、特開平4-51491号公報は透明基板の
上下に対称的に透明電極と正孔輸送層と発光層と電子輸
送層と高反射率の上部電極とをそのうちの発光層が上下
の発光層で発光色の異なるものであったり、あるいは少
なくとも上下いずれか一方の発光層が発光色の異なる複
数の発光層の並列から成るものであったりするように設
けて、透明基板の端面側に上述の発光層の発光を取り出
すようにした多色電界発光素子を開示しているが、これ
でもカラー画像表示装置を得ることは困難である。Further, in Japanese Patent Laid-Open No. 4-51491, a transparent electrode, a hole transport layer, a light emitting layer, an electron transport layer and an upper electrode having a high reflectance are symmetrically arranged above and below a transparent substrate. The light emitting layer of the transparent substrate has different emission colors, or at least one of the upper and lower light emitting layers is composed of a plurality of light emitting layers having different emission colors arranged in parallel. Discloses a multicolor electroluminescent device adapted to take out the light emission of the above-mentioned light emitting layer, but it is still difficult to obtain a color image display device.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、カラー画像
のような多色画像の表示ができる多色電界発光表示装置
の提供を目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a multicolor electroluminescent display device capable of displaying a multicolor image such as a color image.
【０００６】[0006]
【課題を解決するための手段】本発明は、透明基板上に
少なくともストライプ状に並列した透明電極と、電界発
光層と、前記透明電極のストライプと交差する方向のス
トライプ状に並列した上部電極とを積層し、前記両電極
のそれぞれ選択したストライプ間に電圧を印加して両電
極の選択されたストライプの前記交差する位置の電界発
光層部分を発光させ前記透明基板側に出射させる電界発
光表示装置において、前記電界発光層の発光色が互いに
異なる複数の前記電界発光表示装置を同じ前記積層順で
前記上部電極のストライプ状並列の位置がずれるように
重ねたことにより多色画像を表示することを特徴とする
多色電界発光表示装置にあり、この構成によって前記目
的を達成する。According to the present invention, there are provided a transparent electrode arranged in a stripe shape on a transparent substrate, an electroluminescent layer, and an upper electrode arranged in a stripe shape in a direction intersecting the stripe of the transparent electrode. And a voltage is applied between the selected stripes of the both electrodes to cause the electroluminescent layer portion at the intersecting position of the selected stripes of both electrodes to emit light and emit the light to the transparent substrate side. In, a multicolor image is displayed by stacking a plurality of the electroluminescent display devices having different emission colors of the electroluminescent layers in the same stacking order so that the stripe-shaped parallel positions of the upper electrodes are displaced. The multi-color electroluminescent display device is characterized by this structure, and achieves the above object.
【０００７】[0007]
【作用】すなわち、本発明の多色電界発光表示装置は、
電界発光層の発光色が異なるだけで構造が殆んど同じ複
数の電界発光表示装置をそれらの透明基板が同じ側にな
るように、そして上部電極のストライプ状並列の位置が
ずれているように重ねた構造から成るから、複数の電界
発光表示装置のうちのいずれか一つの電界発光表示装置
だけを駆動すれば単色画像を表示できるし、複数の電界
発光表示素子装置の電界発光層がそれぞれ例えば青
（Ｂ）、緑（Ｇ）、赤（Ｒ）の発光色のもので、それら
電界発光表示装置を例えば走査露光した原稿からの反射
光をＢ，Ｇ，Ｒの光に分解するダイクロイックプリズム
と分解光を画像信号に変換するＣＣＤとを用いた原稿読
取装置からのＢ，Ｇ，Ｒの画像信号により駆動すればカ
ラー画像を表示することができる。That is, the multicolor electroluminescent display device of the present invention is
A plurality of electroluminescent display devices having almost the same structure only with different emission colors of the electroluminescent layers are arranged so that their transparent substrates are on the same side, and the stripe-shaped parallel positions of the upper electrodes are displaced. Because of the stacked structure, a single color image can be displayed by driving only one electroluminescent display device among the plurality of electroluminescent display devices, and the electroluminescent layers of the plurality of electroluminescent display element devices respectively have, for example, A dichroic prism which emits light of blue (B), green (G), and red (R), and decomposes the reflected light from a document exposed by scanning and exposing the electroluminescent display device into B, G, and R lights. A color image can be displayed by driving with the B, G, and R image signals from the document reading device using a CCD that converts the separated light into an image signal.
【０００８】[0008]
【実施例】以下、図示例によって本発明を説明する。The present invention will be described below with reference to the illustrated examples.
【０００９】図１は本発明に用いられる電界発光表示装
置の層構成の例を示す部分斜視図、図２は本発明の多色
電界発光表示装置の例を示す部分断面図、図３はカラー
画像を表示する駆動回路の要部ブロック回路図、図４は
文字キャラクタを表示する駆動回路の要部ブロック回路
図である。FIG. 1 is a partial perspective view showing an example of a layer structure of an electroluminescent display device used in the present invention, FIG. 2 is a partial sectional view showing an example of a multicolor electroluminescent display device of the present invention, and FIG. 3 is a color diagram. FIG. 4 is a block diagram of a main part of a drive circuit that displays an image, and FIG. 4 is a block circuit diagram of a main part of the drive circuit that displays a character.
【００１０】図１，図２において、１，１Ｂ，１Ｇ，１
Ｒは多色電界発光表示装置10の構成要素であるそれぞれ
従来公知の単色の電界発光表示装置、２は厚さ50μm〜
２mm程度の例えばガラス板や石英板あるいはポリエステ
ルシート等から成る絶縁性の透明基板、３は透明基板２
の表面に形成された並列ピッチ100〜500μm程度、並列
間隙20〜50μm程度、厚さ50〜5000Å程度のストライプ
状のＩＴＯ，ネサガラスのIn2O3膜，Ａｕ，Ｎｉ，Ｐ
ｔ，Ｐｄ等から成る透明電極、図１の４は厚さ50〜5000
Å程度のアントラセン，ナフタリン，フェナントレン，
ピレン，クリセン，ペリレン等の芳香族化合物、1,4-ジ
フェニルブタジエン，テトラフェニルブタジエン等のブ
タジエン、クマリン、アクリジン、トランススチルベン
等のスチルベン、８個未満の環を有する縮合環構造の化
合物と言った発光物質とポリスチレン、ポリ-p-t-ブチ
ルスチレン、ポリビニルカルバゾール、ポリビニルトル
エン、ポリメチルメタクリレート、ポリアクリロニトリ
ル共重合体、ポリ酢酸ビニル、ポリエステル，ポリカー
ボネート，ポリイミド，ポリスルホン等の縮合重合体と
言った固体溶媒としての結合剤とから成る電界発光層、
図２の４Ｂは電界発光層４のうちの特に発光物質として
テトラフェニルブタジエン、2-(4-ビフェニル)-6-フェ
ニルベンゾキサゾールや下記構造式In FIGS. 1 and 2, 1, 1B, 1G, 1
R is a component of the multicolor electroluminescent display device 10, and each is a conventionally known monochromatic electroluminescent display device, and 2 is a thickness of 50 μm.
Insulating transparent substrate 3 made of, for example, a glass plate, a quartz plate, or a polyester sheet having a thickness of about 2 mm, and 3 is a transparent substrate 2.
Stripe-shaped ITO with a parallel pitch of 100 to 500 μm, parallel gap of 20 to 50 μm, and thickness of 50 to 5000 Å, In 2 O 3 film of Nesa glass, Au, Ni, P
A transparent electrode made of t, Pd, etc., 4 in FIG. 1 has a thickness of 50 to 5000
Å about anthracene, naphthalene, phenanthrene,
Aromatic compounds such as pyrene, chrysene and perylene, butadiene such as 1,4-diphenylbutadiene and tetraphenylbutadiene, stilbenes such as coumarin, acridine and transstilbene, and compounds with a condensed ring structure having less than 8 rings As a solid solvent such as a luminescent substance and a condensation polymer of polystyrene, poly-pt-butylstyrene, polyvinylcarbazole, polyvinyltoluene, polymethylmethacrylate, polyacrylonitrile copolymer, polyvinyl acetate, polyester, polycarbonate, polyimide, polysulfone, etc. An electroluminescent layer comprising a binder of
In FIG. 2, 4B is tetraphenylbutadiene, 2- (4-biphenyl) -6-phenylbenzoxazole, or the following structural formula as a light emitting material in the electroluminescent layer 4.
【００１１】[0011]
【化１】 [Chemical 1]
【００１２】等の青色発光物質を用いた青色発光する電
界発光層、また４Ｇは特に発光物質として4,4-ビス(5,7
-ジ-t-ベンチル-2-ベンゾキサゾリル)スチルベン、テト
ラフェニルエチレン、2,2′-(p-フェニレンジビニレン)
ビスベンゾチアゾール、2,5-ビス〔5-(α,α-ジメチル
ベンジル)-2-ベンゾキサゾリル〕チオフェン、2,5-ビス
〔5,7-ジ-t-ベンチル-2-ベンゾキサゾリル〕-3,4-ジフ
ェニルチオフェン、8-ヒドロキシキノリンの金属錯体、
下記構造式An electroluminescent layer which emits blue light using a blue light-emitting substance such as 4G is especially used as a light-emitting substance.
-Di-t-benzyl-2-benzoxazolyl) stilbene, tetraphenylethylene, 2,2 '-(p-phenylenedivinylene)
Bisbenzothiazole, 2,5-bis [5- (α, α-dimethylbenzyl) -2-benzoxazolyl] thiophene, 2,5-bis [5,7-di-t-benzyl-2-benzoxazolyl] -3, 4-diphenylthiophene, metal complex of 8-hydroxyquinoline,
The following structural formula
【００１３】[0013]
【化２】 [Chemical 2]
【００１４】等の緑色発光物質を用いた緑色発光する電
界発光層、そして４Ｒは特に発光物質として下記構造式An electroluminescent layer that emits green light using a green light-emitting substance such as, and 4R is a light-emitting substance having the following structural formula
【００１５】[0015]
【化３】 [Chemical 3]
【００１６】のような赤色発光物質を用いるか、または
前述の電界発光層４Ｂや４Ｇのような層と下記構造式A red luminescent material such as the above or a layer such as the above-mentioned electroluminescent layer 4B or 4G and the following structural formula is used.
【００１７】[0017]
【化４】 [Chemical 4]
【００１８】の層との積層とから成っていて、赤色発光
する電界発光層であり、５は透明電極３のストライプの
方向とストライプがほぼ直角方向の並列ピッチ100〜500
μm程度、並列間隙が並列ピッチの２／３程度、厚さ500
〜5000Å程度のストライプ状のＭｇ，Ａｌ，Ｉｎと言っ
た仕事関数の小さい金属またはそれらの合金あるいはそ
れらとＡｇ，Ａｕ，Ｎｉ，Ｐｔ，Ｐｄ等との合金から成
る上部電極である。An electroluminescent layer for emitting red light, which is composed of a stack of the above-mentioned layers, and 5 is a parallel pitch of 100 to 500 in which the stripes of the transparent electrode 3 and the stripes are substantially perpendicular to each other.
μm, parallel gap is about 2/3 of parallel pitch, thickness 500
This is an upper electrode made of a metal having a small work function such as Mg, Al, or In, or an alloy thereof, or an alloy thereof with Ag, Au, Ni, Pt, Pd, or the like, in the form of stripes of about 5000 Å.
【００１９】以上のような透明電極３や電界発光層４，
４Ｂ〜４Ｒ及び上部電極５は特開昭57-51781号，同59-1
94393号，特開平2-66873号，同3-261182号，同3-283294
号，同4-51491号各公報に記載されているような公知の
方法によって形成され、そして透明電極３を形成された
透明基板２と電界発光層４または４Ｂ〜４Ｒの間や電界
発光層４または４Ｂ〜４Ｒと上部電極５の間に厚さ3000
Å程度のSi3N4等の絶縁層を設けたり、電界発光層４ま
たは４Ｂ〜４Ｒの透明電極３側にＣｕ，Ｐｂ，Ｐｔ，Ｃ
ｏ，Ｍｇ，Ｚｎ，Ｐｄ，Ｎｉ等の金属フタロシアニンや
無金属フタロシアニン等のポルフィリン化合物、ポリビ
ニルカルバゾール、トリフェニルアミン類、スチルベン
誘導体類、オキサジアゾール類等から成る厚さ200〜500
0Å程度の正孔注入層を設けたり、電界発光層４または
４Ｂ〜４Ｒの上部電極５側にオキサジアゾール誘導体か
ら成る厚さ200〜5000Å程度の電子注入層を設けたりし
てもよい。The transparent electrode 3 and the electroluminescent layer 4 as described above
4B to 4R and the upper electrode 5 are disclosed in JP-A-57-51781 and 59-1.
94393, JP-A-2-66873, 3-261182, 3-283294.
Between the transparent substrate 2 and the electroluminescent layer 4 or 4B to 4R formed by a known method as described in JP-A-4-51491 and the transparent electrode 3, and the electroluminescent layer 4. Or thickness 3000 between 4B-4R and the upper electrode 5
An insulating layer such as Si 3 N 4 having a thickness of about Å is provided, or Cu, Pb, Pt, C is provided on the transparent electrode 3 side of the electroluminescent layer 4 or 4B to 4R.
o, Mg, Zn, Pd, Ni and other metal phthalocyanines, metal-free phthalocyanines and other porphyrin compounds, polyvinylcarbazole, triphenylamines, stilbene derivatives, oxadiazoles, etc. thickness 200-500
A hole injection layer of about 0 Å may be provided, or an electron injection layer of an oxadiazole derivative having a thickness of about 200 to 5000 Å may be provided on the upper electrode 5 side of the electroluminescent layer 4 or 4B to 4R.
【００２０】図２の多色電界発光表示装置10は、例えば
図１の電界発光表示装置１の電界発光層４だけが前述の
青色発光層４Ｂや緑色発光層４Ｇあるいは赤色発光層４
Ｒのように異なる３個の電界発光表示装置１Ｂ〜１Ｒ
を、それらのストライプ状の上部電極５の位置ができる
だけ重ならないようにずらして、透明基板２が同じ側に
なるように、重ねた構成のものである。そのため、この
電界発光表示装置10は、上側の電界発光表示装置１Ｂだ
けを駆動すれば青色画像を、中央の電界発光表示装置１
Ｇだけを駆動すれば緑色画像を、下側の電界発光表示装
置１Ｒだけを駆動すれば赤色画像を表示でき、また図３
の駆動回路により３個の電界発光表示装置を駆動すれば
カラー画像や白黒画像を表示できる。In the multicolor electroluminescent display device 10 of FIG. 2, for example, only the electroluminescent layer 4 of the electroluminescent display device 1 of FIG. 1 is the blue light emitting layer 4B, the green light emitting layer 4G or the red light emitting layer 4 described above.
Three different light emitting display devices 1B to 1R such as R
Are arranged so that the positions of the striped upper electrodes 5 do not overlap as much as possible, and the transparent substrate 2 is on the same side. Therefore, in the electroluminescent display device 10, if only the upper electroluminescent display device 1B is driven, a blue image is displayed and the central electroluminescent display device 1B is displayed.
A green image can be displayed by driving only G, and a red image can be displayed by driving only the lower electroluminescent display device 1R.
A color image or a black and white image can be displayed by driving the three electroluminescent display devices by the driving circuit.
【００２１】図３において、Ｂ，Ｇ，Ｒビデオ信号とク
ロック信号は例えば走査露光した原稿からの反射光を
Ｂ，Ｇ，Ｒの光に分解するダイクロイックプリズムと分
解光を画像信号に変換するＣＣＤとを用いた原稿読取装
置からの信号であり、電界発光表示装置１Ｂ〜１Ｒそれ
ぞれのドライブ回路がクロック信号によって透明電極３
と上部電極５のストライプ電極を順次切換えてビデオ信
号に応じ両電極間に透明電極３を陽極、上部電極５を陰
極とする電圧を加えるから、Ｂ，Ｇ，Ｒのビデオ信号に
よって定まる透明電極３と上部電極５のストライプの交
差部の電界発光層４Ｂ，４Ｇ，４Ｒが発光して透明基板
２側に原稿画像と同様のカラー画像や白黒画像が表示さ
れることになる。この回路の単色の電界発光表示装置に
関する部分は従来公知の回路と同じである。In FIG. 3, a B, G, R video signal and a clock signal are, for example, a dichroic prism for decomposing the reflected light from the original document subjected to scanning exposure into B, G, R light and a CCD for converting the decomposing light into an image signal. Is a signal from a document reading device using the transparent electrode 3 and the drive circuit of each of the electroluminescent display devices 1B to 1R in response to a clock signal.
And the stripe electrode of the upper electrode 5 are sequentially switched, and a voltage is applied between both electrodes with the transparent electrode 3 as the anode and the upper electrode 5 as the cathode according to the video signal. Therefore, the transparent electrode 3 determined by the B, G, and R video signals is applied. The electroluminescent layers 4B, 4G, and 4R at the intersections of the stripes of the upper electrode 5 and the upper electrode 5 emit light, and a color image or a monochrome image similar to the original image is displayed on the transparent substrate 2 side. The portion of this circuit related to the monochromatic electroluminescent display device is the same as the conventionally known circuit.
【００２２】図４は図２の表示装置10を例えばワードプ
ロセッサの表示装置とした場合の表示装置10の駆動回路
を示し、この回路の単色の電界発光表示装置に関する部
分も従来公知の回路と同じである。この回路でアドレス
信号に従って文字画像信号を出力するキャラクタ信号発
生器を各単色表示装置１Ｂ〜１Ｒごとに設けているのは
白黒表示のほか単色あるいは２色の複合色の表示もする
ためであるが、キャラクタ信号発生器を各表示装置１Ｂ
〜１Ｒに共通にして出力を並列に各単色表示装置にスイ
ッチを介して入力するようにしても同じ結果を得ること
はできる。FIG. 4 shows a drive circuit of the display device 10 when the display device 10 of FIG. 2 is used as a display device of a word processor, for example, and the portion related to the monochromatic electroluminescent display device is the same as the conventionally known circuit. is there. In this circuit, a character signal generator for outputting a character image signal according to an address signal is provided for each of the monochrome display devices 1B to 1R in order to display monochrome or monochrome or two-color composite color. , Character signal generator for each display device 1B
It is possible to obtain the same result even if the outputs are input in parallel to each of the single color display devices through the switch in common to 1R.
【００２３】[0023]
【発明の効果】本発明の多色電界発光表示装置によれ
ば、構成が簡単で、カラー画像のような多色画像を表示
できる。The multicolor electroluminescent display device of the present invention has a simple structure and can display a multicolor image such as a color image.
【図１】本発明に用いられる電界発光表示装置の層構成
の例を示す部分斜視図である。FIG. 1 is a partial perspective view showing an example of a layer structure of an electroluminescent display device used in the present invention.
【図２】本発明の多色電界発光表示装置の例を示す部分
断面図である。FIG. 2 is a partial cross-sectional view showing an example of a multicolor electroluminescent display device of the present invention.
【図３】カラー画像を表示する駆動回路の要部ブロック
回路図である。FIG. 3 is a block circuit diagram of a main part of a drive circuit that displays a color image.
【図４】文字キャラクタを表示する駆動回路の要部ブロ
ック回路図である。FIG. 4 is a block circuit diagram of a main part of a drive circuit that displays a character.
１，１Ｂ，１Ｇ，１Ｒ 単色電界発光表示装置 ２ 透明基板 ３ 透明電極 ４，４Ｂ，４Ｇ，４Ｒ 電界発光層 ５ 上部電極 10 多色電界発光表示装置 1, 1B, 1G, 1R monochromatic electroluminescent display device 2 transparent substrate 3 transparent electrode 4, 4B, 4G, 4R electroluminescent layer 5 upper electrode 10 multicolor electroluminescent display device
Claims (1)
並列した透明電極と、電界発光層と、前記透明電極のス
トライプと交差する方向のストライプ状に並列した上部
電極とを積層し、前記両電極のそれぞれ選択したストラ
イプ間に電圧を印加して両電極の選択されたストライプ
の前記交差する位置の電界発光層部分を発光させ前記透
明基板側に出射させる電界発光表示装置において、前記
電界発光層の発光色が互いに異なる複数の前記電界発光
表示装置を同じ前記積層順で前記上部電極のストライプ
状並列の位置がずれるように重ねたことにより多色画像
を表示することを特徴とする多色電界発光表示装置。1. A transparent substrate, on which at least transparent electrodes arranged in stripes, an electroluminescent layer, and upper electrodes arranged in stripes in a direction intersecting the stripes of the transparent electrodes are laminated, In an electroluminescent display device in which a voltage is applied between the selected stripes to cause the electroluminescent layer portions at the intersecting positions of the selected stripes of both electrodes to emit light and emit the light toward the transparent substrate side, light emission of the electroluminescent layer Multicolor electroluminescent display characterized by displaying a multicolor image by stacking a plurality of the electroluminescent display devices of different colors in the same stacking order so that the positions of the upper electrodes in a stripe shape are shifted in parallel. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4216104A JPH0668977A (en) | 1992-08-13 | 1992-08-13 | Multicolored electroluminescence display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4216104A JPH0668977A (en) | 1992-08-13 | 1992-08-13 | Multicolored electroluminescence display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0668977A true JPH0668977A (en) | 1994-03-11 |
Family
ID=16683311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4216104A Pending JPH0668977A (en) | 1992-08-13 | 1992-08-13 | Multicolored electroluminescence display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0668977A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264805B1 (en) | 1994-12-13 | 2001-07-24 | The Trustees Of Princeton University | Method of fabricating transparent contacts for organic devices |
| US6358631B1 (en) | 1994-12-13 | 2002-03-19 | The Trustees Of Princeton University | Mixed vapor deposited films for electroluminescent devices |
| US6365270B2 (en) | 1994-12-13 | 2002-04-02 | The Trustees Of Princeton University | Organic light emitting devices |
| JP2005232036A (en) * | 2004-02-17 | 2005-09-02 | Kyoto Univ | Polysubstituted olefin and method for selectively producing the same |
| JP2005347516A (en) * | 2004-06-03 | 2005-12-15 | Jsr Corp | Light emitting device |
| EP1672721A2 (en) * | 1996-05-03 | 2006-06-21 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| JP2007234591A (en) * | 2006-02-15 | 2007-09-13 | Osram Opto Semiconductors Gmbh | Double emission white pled for illumination |
| JP2010538479A (en) * | 2007-09-04 | 2010-12-09 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Semiconductor component and method for manufacturing semiconductor component |
-
1992
- 1992-08-13 JP JP4216104A patent/JPH0668977A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264805B1 (en) | 1994-12-13 | 2001-07-24 | The Trustees Of Princeton University | Method of fabricating transparent contacts for organic devices |
| US6358631B1 (en) | 1994-12-13 | 2002-03-19 | The Trustees Of Princeton University | Mixed vapor deposited films for electroluminescent devices |
| US6365270B2 (en) | 1994-12-13 | 2002-04-02 | The Trustees Of Princeton University | Organic light emitting devices |
| US6596134B2 (en) * | 1994-12-13 | 2003-07-22 | The Trustees Of Princeton University | Method of fabricating transparent contacts for organic devices |
| EP1672721A2 (en) * | 1996-05-03 | 2006-06-21 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| EP1672722A2 (en) * | 1996-05-03 | 2006-06-21 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| EP1684368A2 (en) * | 1996-05-03 | 2006-07-26 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| EP1672722A3 (en) * | 1996-05-03 | 2010-06-30 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| EP1672721A3 (en) * | 1996-05-03 | 2010-06-30 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| EP1684368A3 (en) * | 1996-05-03 | 2010-06-30 | Cambridge Display Technology Limited | Organic light-emitting device and method of fabricating the same |
| JP2005232036A (en) * | 2004-02-17 | 2005-09-02 | Kyoto Univ | Polysubstituted olefin and method for selectively producing the same |
| JP2005347516A (en) * | 2004-06-03 | 2005-12-15 | Jsr Corp | Light emitting device |
| JP2007234591A (en) * | 2006-02-15 | 2007-09-13 | Osram Opto Semiconductors Gmbh | Double emission white pled for illumination |
| JP2010538479A (en) * | 2007-09-04 | 2010-12-09 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Semiconductor component and method for manufacturing semiconductor component |
| US8384096B2 (en) | 2007-09-04 | 2013-02-26 | Osram Opto Semiconductors Gmbh | Semiconductor component with optically active regions which provides high optical output power, and method for producing same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5688551A (en) | Method of forming an organic electroluminescent display panel | |
| US6344712B1 (en) | Organic electroluminescent display device capable of preventing color mixing | |
| US6117529A (en) | Organic electroluminescence devices and displays | |
| KR100719827B1 (en) | Lighting apparatus and liquid crystal display apparatus | |
| JPH11251059A (en) | Color display device | |
| KR100735786B1 (en) | Organic electroluminescence element | |
| JPH11329742A (en) | Organic electroluminescent(el) element and light emitting device | |
| JP2003115377A (en) | Light emitting element, its manufacturing method, and display equipment using this | |
| JP2000195664A (en) | Luminescent device | |
| TWI278254B (en) | Light-emitting device, electronic equipment, projection-type display device, line head, and image forming apparatus | |
| JPH02280187A (en) | Multicolor display | |
| JPH0668977A (en) | Multicolored electroluminescence display device | |
| JP2007287697A (en) | Organic electroluminescent element and light emitting device | |
| JP3143362B2 (en) | Organic electroluminescence device | |
| JP3672127B2 (en) | Optical element manufacturing method and optical element | |
| EP0905672A1 (en) | Stacked display device and method of driving the same | |
| JP2009251325A (en) | Self-luminous signboard | |
| JP3714179B2 (en) | EL element, EL display, and electronic device | |
| JP3143350B2 (en) | Organic electroluminescence device | |
| JP2003297577A (en) | Organic light emitting display device, and manufacturing method of the same | |
| JP2003297554A (en) | Light-emitting element, and display device and lighting apparatus using the same | |
| KR100196737B1 (en) | A two-dimentional organic thin film electroluminescence display unit | |
| JP2000003786A (en) | Organic electroluminescent display device | |
| US4717859A (en) | Polychromatic electro luminescence display device | |
| JP2007026947A (en) | Backlight for liquid crystal display |