JP3711683B2 - Luminous display - Google Patents
Luminous display Download PDFInfo
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- JP3711683B2 JP3711683B2 JP05786297A JP5786297A JP3711683B2 JP 3711683 B2 JP3711683 B2 JP 3711683B2 JP 05786297 A JP05786297 A JP 05786297A JP 5786297 A JP5786297 A JP 5786297A JP 3711683 B2 JP3711683 B2 JP 3711683B2
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- electrode
- emitting display
- light emitting
- light
- metal
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- 239000000463 material Substances 0.000 claims description 49
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000004332 silver Substances 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 239000010409 thin film Substances 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910001316 Ag alloy Inorganic materials 0.000 claims description 3
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 229910000733 Li alloy Inorganic materials 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 16
- 239000011521 glass Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- -1 4-tert-butylphenyl Chemical group 0.000 description 4
- 239000002932 luster Substances 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 2
- 230000005525 hole transport Effects 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000004528 spin coating Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 1
- 125000000319 biphenyl-4-yl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C1=C([H])C([H])=C([*])C([H])=C1[H] 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- 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
- H10K59/12—Active-matrix OLED [AMOLED] displays
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は発光ディスプレイに係わり、更に詳しくは、有機発光材料を用いた発光ディスプレイに関する。
【０００２】
【従来の技術】
近年液晶表示体がワードプロセッサー、パーソナルコンピュータ等の表示部として盛んに用いられている。この液晶表示体は非発光素子であり明るさの点、特に反射型ディスプレイで用いる時問題となっている。ここへきて薄型、軽量の特徴を有す有機の発光材料（以後有機ＥＬ材料という）を用いた発光ディスプレイが注目されている。
【０００３】
この発光ディスプレイの断面図を図４に示す。図において１はアルミニウム電極を、２は有機ＥＬ材料を、３はＩＴＯ透明電極を、４はガラス基板を、５は電源をそれぞれ示す。この発光ディスプレイの作成方法は以下の通りである。まず、透明基板上にスパッター法、蒸着法等によりＩＴＯ等の透明電極の薄膜を付ける。この後、ホトリソグラフィー法等により所望の形状の電極とする。しかる後、スピンコート法、蒸着法等により有機ＥＬ材料をコートし発光層を形成する。更に仕事関数の低い金属、例えば、マグネシウム、アルミニウム、リチウム等、あるいはこれら金属の合金を蒸着、スパッタ法等によりとばすことにより対向電極を得る。以上が基本の工程であるが、発光効率を上げるために、更に透明電極を付けた後に、ホール輸送材料、例えばＮ，Ｎ’−ジフェニル−Ｎ，Ｎ’−（２，４−ジメチルフェニル）−１，１’−ビフェニル−４，４’−ジアミンを蒸着法等により付けても良い。また有機ＥＬ材料を付けた後、電子輸送材料を、例えば２−（４−ビフェニル）−５−（４−ｔｅｒｔ−ブチルフェニル）−１，３，４−オキシジアゾールを付けても良い。
【０００４】
この対向する２種の電極に電界を印加する事により発光させることが出来る。この発光ディスプレイの特徴として、１０ボルト以下の低電圧で駆動できることである。
【０００５】
この有機ＥＬ材料を用いた発光ディスプレイは将来有望な技術であるが、しかし従来の発光ディスプレイに於いては図４に示すように、対向電極に仕事関数の低い金属を用いるため、発光ディスプレイに通電されていない状態に於いては金属光沢がそのまま目に入り、見づらい欠点があった。
【０００６】
【発明が解決しようとする課題】
本発明はこのような有機ＥＬ材料を用いた発光ディスプレイの非発光部分が見づらいという問題を解決するためになされたもので、その目的は従来の作成方法をあまり変えることなく、有機ＥＬを用いた見易い発光ディスプレイを提供するためになされたものである。
【０００７】
【課題を解決するための手段】
上記課題を解決するために、本発明の発光ディスプレイは、発光材料と、該発光材料を挟む第１と第２の電極よりなる発光ディスプレイにおいて、前記第１の電極は透明電極よりなり、該透明電極はＴＦＴに接続されてなり、前記第２の電極は金属材料を含む半透明電極からなり、前記半透明金属に接するとともに、ＴＦＴの上に黒色材料が配置されてなることを特徴とする。
本発明は、前記第２の電極は２００オングストローム以下の膜厚を有する金属薄膜を含むことを特徴とする。
本発明は、前記第２の電極はＩＴＯを含むことを特徴とする。
本発明は、前記金属薄膜はアルミニウム、カルシウム、マグネシウム、銀、及び金から選ばれた金属から構成されることを特徴とする。
本発明は、前記金属薄膜は、アルミニウム、カルシウム、マグネシウム、銀、及び合金から選ばれた金属とリチウムとの合金から構成されることを特徴とする。
本発明は、前記金属薄膜は、マグネシウムと銀との合金から構成されること、を特徴とする。
本発明は前記黒色材料がカーボン粒子を含む導電性材料であることを特徴とする。
【０００８】
上記の発光ディスプレイにおいて、前記第１の電極は、各々がトランジスターにつながり独立に通電できる、複数の電極より成り、前記第２の電極は、共通電極であるようにしてもよい。
【０００９】
上記の発光ディスプレイにおいて、前記黒色材料がカーボン粒子を含む導電性材料であるようにしてもよい。
【００１０】
本発明の断面図を図１に示す。図において１１基板を、１２はＩＴＯ透明電極を、１３は有機ＥＬ材料を、１４は半透明電極を、１５は黒色材料を、１６は電源をそれぞれ示す。上記基板としてはガラス基板やプラスチック基板も可能である。また、透明電極としてはいろいろな透明電極を用いることが出来るがＩＴＯ透明電極が好適である。半透明電極としては仕事関数の低い金属を薄くつけることにより可能であるが、好適にはアルミニウム金属、カルシウム金属、マグネシウム金属、銀、金等の金属、あるいはこれら金属とリチウム金属等の合金、あるいはマグネシウムと銀との合金等が好適である。これら金属を２００オングストローム以下の薄膜にする事により半透過性の電極を得ることが出来る。この電極を補強するために更にＩＴＯ等の透過性金属を蒸着あるいはスパターしてもよい。しかる後、半透明電極に接して黒色材料を設置する。黒色材料としては黒い紙や黒いプラスチックの様なものでもよいが、カーボン粒子を分散させたペースト等は導電性が得られるため、尚好適である。
【００１１】
以上述べたほかにも、他の有機ＥＬ材料、電極材料、黒色材料も色々考えることは出来る。
【００１２】
【発明の実施の形態】
以上のべた様に半透明電極の後ろに黒色材料を設けることにより、非発光時の不自然な金属光沢がなくなり非常に見易い発光ディスプレイとなる。以下実施例により本発明を詳細に説明する。
【００１３】
（実施例１）
図２に本発明の発光ディスプレイの正面と側面の外観図を示す。図において２１はガラス基板を、２２はＩＴＯ透明電極を、２３は有機ＥＬ材料を、２４は半透明電極を、２５は黒色材料を、２６はセグメント電極を、２７は引出し線をそれぞれ示す。
【００１４】
このディスプレイの作成において、まず市販のＩＴ０付きガラス基板を用い、ホトリソグラフィー法により、図に示すような４桁のセグメント型の電極を形成した。この基板を洗浄後、プラズマ処理により表面を活性化した後、スピンコート法によりポリパラフェニレンビニレンの０．１ミクロンの膜を作成した。続いて、マグネシウム／銀（３０：１）合金を８０オングストローム蒸着した。更に補強するためにＩＴＯを１０００オングストローム蒸着した。この半透明電極の後側に黒色塗料をスプレーガンにより吹き付けた。このようにして得た発光ディスプレイに１０Ｖの直流印加で駆動したところ、従来の発光ディスプレイが金属光沢を有し非常に見づらかったのに対して、非常に見やすいものとなった。
【００１５】
（実施例２）
図３にマトリクス駆動発光ディスプレイの断面図を示す。図において３１はＩＴＯ透明電極を、３２は絶縁層を、３３はガラス基板を、３４はＴＦＴ素子を、３５は仕切り層を、３６は有機ＥＬ材料を、３７は黒色材料を、３８は半透明電極をそれぞれ示す。
【００１６】
図３に示す本発明に用いられる仕切り層は、矩形上に形成されたＩＴＯ電極を有すＴＦＴ素子をのせた基板上に、ホトレジスト材料を全面に塗布した後、フトリソグラフィー法によりＩＴＯ電極上のレジスト材料を円形に除去することにより得た。このようなレジスト材料により周辺を覆われたＩＴＯ電極上にポリパラフェニレンビニレンが０．１ミクロンの膜を形成するようにポリパラフェニレンビニレンの前駆体溶液をインクジェットプリンティング装置により充填し、焼成した。しかる後、この基板の上にマグネシウム／銀（３０：１）合金を７０オングストローム、ＩＴ０を１０００オングストローム蒸着し、半透明電極とした。更にこのようにして得た半透明電極の上にカーボン粒子入り銀ペースト材料を塗布した。
【００１７】
このようにして得た発光ディスプレイを駆動したところ、非発光部分の金属光沢がなくなり非常に見やすいディスプレイとなった。
【００１８】
以上述べたように半透明電極の後ろ側に黒色材料を設置することにより、発光ディスプレイの見やすさを増す事がわかった。
【００１９】
本発明の方法は、本発明の要旨を逸脱しない限り、上記以外の、その他黒色材料、絶縁材料，有機ＥＬ材料等に適用できるものである。
【００２０】
例えば、実施例では高分子系の有機ＥＬ材料を用いたが低分子系の有機ＥＬ材料についても適用できるものである。またインクジェットプリンティング装置により赤、緑、青の三色の有機ＥＬ材料を飛ばすことによりフルカラーの発光ディスプレイを作成できることは自明のことである。また発光効率を上げるためにホール輸送層や電子輸送層を形成出来ることも自明のことである。
【００２１】
【発明の効果】
以上実施例で説明したように従来の方法をあまり変更することなく、単に発光ディスプレイの半透明電極の後ろ側に黒色材料を設置するだけで、発光ディスプレイの視認性を上げることが出来る。
【図面の簡単な説明】
【図１】本発明の発光ディスプレイの断面図。
【図２】本発明のセグメント駆動用発光ディスプレイの外観図。
【図３】本発明のマトリクス駆動用発光ディスプレイの断面図。
【図４】従来の発光ディスプレイの断面図。
【符号の説明】
１・・・・アルミニウム電極
２・・・・有機ＥＬ材料
３・・・・ＩＴＯ透明電極
４・・・・ガラス基板
５・・・・電源
１１・・・基板
１２・・・ＩＴＯ透明電極
１３・・・有機ＥＬ材料
１４・・・半透明電極
１５・・・黒色材料
１６・・・電源
２１・・・ガラス基板
２２・・・ＩＴＯ透明電極
２３・・・有機ＥＬ材料
２４・・・半透明電極
２５・・・黒色材料
２６・・・セグメント電極
２７・・・引出し線
３１・・・ＩＴＯ透明電極
３２・・・絶縁層
３３・・・ガラス基板
３４・・・ＴＦＴ素子
３５・・・仕切り層
３６・・・有機ＥＬ材料
３７・・・黒色材料
３８・・・半透明電極[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a light emitting display, and more particularly to a light emitting display using an organic light emitting material.
[0002]
[Prior art]
In recent years, liquid crystal displays have been actively used as display units for word processors, personal computers, and the like. This liquid crystal display is a non-light emitting element, which is problematic in terms of brightness, particularly when used in a reflective display. A light-emitting display using an organic light-emitting material (hereinafter referred to as an organic EL material) having thin and light features has been attracting attention.
[0003]
A cross-sectional view of the light emitting display is shown in FIG. In the figure, 1 is an aluminum electrode, 2 is an organic EL material, 3 is an ITO transparent electrode, 4 is a glass substrate, and 5 is a power source. The method of creating this light emitting display is as follows. First, a thin film of a transparent electrode such as ITO is attached on a transparent substrate by sputtering, vapor deposition or the like. Thereafter, an electrode having a desired shape is formed by a photolithography method or the like. Thereafter, an organic EL material is coated by a spin coating method, a vapor deposition method, or the like to form a light emitting layer. Further, a counter electrode is obtained by skipping a metal having a low work function, such as magnesium, aluminum, lithium, or an alloy of these metals by vapor deposition, sputtering, or the like. The above is the basic process. In order to increase the luminous efficiency, a hole transport material such as N, N'-diphenyl-N, N '-(2,4-dimethylphenyl)-is added after further attaching a transparent electrode. 1,1′-biphenyl-4,4′-diamine may be attached by vapor deposition or the like. Further, after attaching the organic EL material, for example, 2- (4-biphenyl) -5- (4-tert-butylphenyl) -1,3,4-oxydiazole may be attached as the electron transport material.
[0004]
Light can be emitted by applying an electric field to the two types of electrodes facing each other. A feature of this light emitting display is that it can be driven at a low voltage of 10 volts or less.
[0005]
A light-emitting display using this organic EL material is a promising technology in the future, but the conventional light-emitting display uses a metal having a low work function for the counter electrode as shown in FIG. In the unfinished state, the metallic luster was visible as it was, and there was a drawback that it was difficult to see.
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the problem that it is difficult to see a non-light emitting portion of a light emitting display using such an organic EL material. The purpose of the present invention is to use an organic EL without changing the conventional production method so much. The present invention was made to provide an easy-to-see light emitting display.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a light-emitting display according to the present invention is a light-emitting display comprising a light-emitting material and first and second electrodes sandwiching the light-emitting material, wherein the first electrode is a transparent electrode, The electrode is connected to a TFT, and the second electrode is a semi-transparent electrode containing a metal material. The second electrode is in contact with the semi-transparent metal, and a black material is disposed on the TFT.
The present invention is characterized in that the second electrode includes a metal thin film having a thickness of 200 angstroms or less.
The present invention is characterized in that the second electrode contains ITO.
In the present invention, the metal thin film is composed of a metal selected from aluminum, calcium, magnesium, silver, and gold.
The present invention is characterized in that the metal thin film is made of an alloy of lithium and a metal selected from aluminum, calcium, magnesium, silver, and an alloy.
The present invention is characterized in that the metal thin film is made of an alloy of magnesium and silver.
The present invention is characterized in that the black material is a conductive material containing carbon particles.
[0008]
In the above light-emitting display, the first electrode may be composed of a plurality of electrodes each connected to a transistor and can be independently energized, and the second electrode may be a common electrode.
[0009]
In the above light emitting display, the black material may be a conductive material containing carbon particles.
[0010]
A cross-sectional view of the present invention is shown in FIG. In the figure, 11 represents a substrate, 12 represents an ITO transparent electrode, 13 represents an organic EL material, 14 represents a translucent electrode, 15 represents a black material, and 16 represents a power source. The substrate may be a glass substrate or a plastic substrate. Moreover, various transparent electrodes can be used as the transparent electrode, but an ITO transparent electrode is preferable. As a semitransparent electrode, it is possible by thinly attaching a metal having a low work function, but preferably a metal such as aluminum metal, calcium metal, magnesium metal, silver, gold, or an alloy such as these metal and lithium metal, or An alloy of magnesium and silver is suitable. By making these metals into thin films of 200 angstroms or less, a semi-transmissive electrode can be obtained. In order to reinforce this electrode, a transparent metal such as ITO may be further deposited or sputtered. Thereafter, a black material is placed in contact with the translucent electrode. The black material may be black paper or black plastic, but a paste or the like in which carbon particles are dispersed is more preferable because conductivity can be obtained.
[0011]
In addition to the above, various other organic EL materials, electrode materials, and black materials can be considered.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
As described above, by providing a black material behind the translucent electrode, an unnatural metallic luster at the time of non-light emission is eliminated and a light-emitting display that is very easy to see is obtained. Hereinafter, the present invention will be described in detail by way of examples.
[0013]
(Example 1)
FIG. 2 shows an external view of the front and side of the light emitting display of the present invention. In the figure, 21 is a glass substrate, 22 is an ITO transparent electrode, 23 is an organic EL material, 24 is a semi-transparent electrode, 25 is a black material, 26 is a segment electrode, and 27 is a leader line.
[0014]
In producing this display, first, a commercially available glass substrate with IT0 was used, and a four-digit segment type electrode as shown in the figure was formed by photolithography. After cleaning this substrate, the surface was activated by plasma treatment, and a 0.1 micron film of polyparaphenylene vinylene was formed by spin coating. Subsequently, a magnesium / silver (30: 1) alloy was deposited by 80 Å. To further reinforce, ITO was deposited at 1000 angstroms. Black paint was sprayed on the back side of the translucent electrode with a spray gun. When the light-emitting display thus obtained was driven by applying a DC voltage of 10 V, the conventional light-emitting display had a metallic luster and was very difficult to see, but it was very easy to see.
[0015]
(Example 2)
FIG. 3 shows a cross-sectional view of a matrix drive light emitting display. In the figure, 31 is an ITO transparent electrode, 32 is an insulating layer, 33 is a glass substrate, 34 is a TFT element, 35 is a partition layer, 36 is an organic EL material, 37 is a black material, and 38 is translucent. Each electrode is shown.
[0016]
The partition layer used in the present invention shown in FIG. 3 is formed by applying a photoresist material on the entire surface of a substrate on which a TFT element having an ITO electrode formed on a rectangle is placed, and then applying the photoresist material on the ITO electrode by photolithography. It was obtained by removing the resist material in a circle. A polyparaphenylene vinylene precursor solution was filled with an ink jet printing apparatus so as to form a 0.1 micron film of polyparaphenylene vinylene on an ITO electrode covered with such a resist material, and baked. Thereafter, a magnesium / silver (30: 1) alloy was deposited on this substrate by 70 angstroms and IT0 by 1000 angstroms to form a translucent electrode. Further, a silver paste material containing carbon particles was applied on the translucent electrode thus obtained.
[0017]
When the light-emitting display thus obtained was driven, the non-light-emitting portion had no metallic luster and the display became very easy to see.
[0018]
As described above, it has been found that placing a black material behind the translucent electrode increases the visibility of the light emitting display.
[0019]
The method of the present invention can be applied to other black materials, insulating materials, organic EL materials and the like other than those described above without departing from the gist of the present invention.
[0020]
For example, although high molecular organic EL materials are used in the embodiments, the present invention can also be applied to low molecular organic EL materials. Further, it is obvious that a full-color light emitting display can be created by flying organic EL materials of three colors of red, green, and blue with an ink jet printing apparatus. It is also obvious that a hole transport layer or an electron transport layer can be formed in order to increase the luminous efficiency.
[0021]
【The invention's effect】
As described in the above embodiments, the visibility of the light-emitting display can be improved by simply installing a black material behind the translucent electrode of the light-emitting display without changing the conventional method so much.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a light-emitting display according to the present invention.
FIG. 2 is an external view of a segment driving light-emitting display of the present invention.
FIG. 3 is a cross-sectional view of a matrix driving light-emitting display of the present invention.
FIG. 4 is a cross-sectional view of a conventional light emitting display.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Aluminum electrode 2 ... Organic EL material 3 ... ITO transparent electrode 4 ... Glass substrate 5 ... Power supply 11 ... Substrate 12 ... ITO transparent electrode 13 .... Organic EL material 14 ... Translucent electrode 15 ... Black material 16 ... Power supply 21 ... Glass substrate 22 ... ITO transparent electrode 23 ... Organic EL material 24 ... Translucent electrode 25 ... Black material 26 ... Segment electrode 27 ... Lead wire 31 ... ITO transparent electrode 32 ... Insulating layer 33 ... Glass substrate 34 ... TFT element 35 ... Partition layer 36 ... Organic EL material 37 ... Black material 38 ... Translucent electrode
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05786297A JP3711683B2 (en) | 1997-03-12 | 1997-03-12 | Luminous display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05786297A JP3711683B2 (en) | 1997-03-12 | 1997-03-12 | Luminous display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10255986A JPH10255986A (en) | 1998-09-25 |
| JP3711683B2 true JP3711683B2 (en) | 2005-11-02 |
Family
ID=13067814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05786297A Expired - Fee Related JP3711683B2 (en) | 1997-03-12 | 1997-03-12 | Luminous display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3711683B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW525305B (en) * | 2000-02-22 | 2003-03-21 | Semiconductor Energy Lab | Self-light-emitting device and method of manufacturing the same |
| JP4627897B2 (en) * | 2001-02-13 | 2011-02-09 | スタンレー電気株式会社 | Manufacturing method of organic LED element |
| JP3864863B2 (en) | 2002-07-10 | 2007-01-10 | 株式会社豊田自動織機 | Color display device |
| JP2004103334A (en) * | 2002-09-06 | 2004-04-02 | Seiko Epson Corp | Organic el device and electronic equipment |
| JP5685558B2 (en) * | 2012-04-19 | 2015-03-18 | 株式会社東芝 | Display device |
| WO2014208449A1 (en) * | 2013-06-27 | 2014-12-31 | コニカミノルタ株式会社 | Organic electroluminescent element and method for manufacturing same |
| JP2017084607A (en) | 2015-10-28 | 2017-05-18 | 株式会社ジャパンディスプレイ | Display device and manufacturing method of display device |
-
1997
- 1997-03-12 JP JP05786297A patent/JP3711683B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10255986A (en) | 1998-09-25 |
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