JPH04334897A - Transparent conductive film for el lamp electrode - Google Patents
Transparent conductive film for el lamp electrodeInfo
- Publication number
- JPH04334897A JPH04334897A JP3198953A JP19895391A JPH04334897A JP H04334897 A JPH04334897 A JP H04334897A JP 3198953 A JP3198953 A JP 3198953A JP 19895391 A JP19895391 A JP 19895391A JP H04334897 A JPH04334897 A JP H04334897A
- Authority
- JP
- Japan
- Prior art keywords
- transparent conductive
- conductive film
- film
- lamp
- transparent
- 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
- 239000010408 film Substances 0.000 claims abstract description 33
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 125000001731 2-cyanoethyl group Chemical group [H]C([H])(*)C([H])([H])C#N 0.000 claims abstract description 7
- 150000001450 anions Chemical class 0.000 claims abstract description 7
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 7
- 150000002367 halogens Chemical class 0.000 claims abstract description 7
- 239000010409 thin film Substances 0.000 claims abstract description 6
- 229920006254 polymer film Polymers 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 6
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 238000005401 electroluminescence Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 239000002120 nanofilm Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- KXJGSNRAQWDDJT-UHFFFAOYSA-N 1-acetyl-5-bromo-2h-indol-3-one Chemical compound BrC1=CC=C2N(C(=O)C)CC(=O)C2=C1 KXJGSNRAQWDDJT-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000004695 Polyether sulfone Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical class OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical class OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004373 Pullulan Substances 0.000 description 1
- 229920001218 Pullulan Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical class O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000005289 physical deposition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 235000019423 pullulan Nutrition 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
- Non-Insulated Conductors (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、エレクトロルミネセン
ス（以下ＥＬと略記する）ランプの電極に用いる、ＥＬ
ランプの寿命を向上させる透明導電性フィルムに関する
ものである。[Industrial Application Field] The present invention relates to electroluminescence (hereinafter abbreviated as EL) lamps used in electrodes.
The present invention relates to a transparent conductive film that improves lamp life.
【０００２】0002
【従来の技術】従来ＥＬランプ電極用透明導電性フィル
ムとしては、ポリエステルフィルム、ポリエーテルスル
ホンフィルム、ポリスチレンシート等の少なくとも片面
に酸化インジウム、酸化スズおよびこれらの混合物透明
導電層をスパッタ、真空蒸着等の手法により形成して得
られたものが一般的であり、この電極とＡｌ板等の背面
電極の間に、発光体層をはさんで電圧を印加することに
より発光させる方式がとられている。この発光体層に用
いられる物質として母体のＺｎＳ等に付活剤としてＣｕ
，Ｍｎ等を混ぜた蛍光体をバインダーと呼ばれる高誘電
性有機材料、例えば、シアノエチル系高分子等で固定さ
せたものである。[Prior Art] Conventional transparent conductive films for EL lamp electrodes include sputtering, vacuum evaporation, etc., of forming a transparent conductive layer of indium oxide, tin oxide, or a mixture thereof on at least one side of a polyester film, polyethersulfone film, polystyrene sheet, etc. A method is generally used to form a light emitting layer by sandwiching a light emitting layer between this electrode and a back electrode such as an Al plate and applying a voltage to emit light. . The material used for this luminescent layer is ZnS as a matrix and Cu as an activator.
, Mn, etc. is fixed with a highly dielectric organic material called a binder, such as a cyanoethyl polymer.
【０００３】ＥＬランプは、発熱を伴わない固体発光体
であり、薄く、均一に発光し、又、形状に対する自由度
が高い等の特性を有しており、液晶のバックライトを中
心として多数く使用されるようになってきた。しかし、
他の光源に比べ寿命において、さらに改良が望まれるの
が現状であった。寿命を短くする一因としては、バイン
ダーおよびトップコート層に含有されるイオン性不純物
による透明導電層の黒化があげられる。[0003] EL lamps are solid light emitters that do not generate heat, are thin, emit light uniformly, and have a high degree of freedom in shape. It's starting to be used. but,
Currently, there is a need for further improvement in terms of lifespan compared to other light sources. One of the reasons for shortening the service life is blackening of the transparent conductive layer due to ionic impurities contained in the binder and top coat layer.
【０００４】0004
【発明が解決しようとする課題】その目的とするところ
は、ＥＬランプ用透明導電性フィルムに要求される他の
諸特性を劣化させることなく、ＥＬランプの寿命を向上
させる透明導電性フィルムを提供する。[Problems to be Solved by the Invention] The purpose is to provide a transparent conductive film that extends the life of EL lamps without degrading other properties required of transparent conductive films for EL lamps. do.
【０００５】[0005]
【課題を解決するための手段】本発明は、透明な高分子
フィルムの片面に透明導電性を有する皮膜を積層し、更
に該皮膜上にハロゲン、アニオン、金属のイオン性不純
物含有量が１０ｐｐｍ以下のシアノエチル系高分子の薄
膜をトップコート層として形成したことを特徴とするＥ
Ｌランプ電極用透明導電性フィルムに関するものである
。[Means for Solving the Problems] The present invention comprises laminating a transparent conductive film on one side of a transparent polymer film, and furthermore, the content of ionic impurities such as halogen, anion, and metal is 10 ppm or less on the film. E characterized by forming a thin film of cyanoethyl polymer as a top coat layer.
This invention relates to a transparent conductive film for L lamp electrodes.
【０００６】本発明に用いる高分子フィルムは、透明性
を有し、かつ耐熱性の優れた高分子フィルムが適してい
る。具体的にはポリサルフォン、ポリエーテルサルフォ
ン及びポリエチレンテレフタレートをはじめとしたポリ
エステル系樹脂があげられる。[0006] As the polymer film used in the present invention, a polymer film that is transparent and has excellent heat resistance is suitable. Specific examples include polyester resins such as polysulfone, polyethersulfone, and polyethylene terephthalate.
【０００７】又、透明導電層としては、金、銀、ジルコ
ニウム、インジウム、スズ、チタン等の金属や酸化スズ
、酸化インジウム等の金属酸化物を使用することができ
る。当然、該導電性膜を高分子フィルムに付与するには
、真空蒸着法、スパッタ法等の物理堆積法や化学メッキ
法、気相法等の化学堆積法で導電性膜を付与しても何ら
さしつかえはない。[0007] As the transparent conductive layer, metals such as gold, silver, zirconium, indium, tin, and titanium, and metal oxides such as tin oxide and indium oxide can be used. Naturally, in order to apply the conductive film to a polymer film, it is impossible to apply the conductive film by a physical deposition method such as vacuum evaporation or sputtering, or a chemical deposition method such as chemical plating or vapor phase method. No problem.
【０００８】又、こられの導電性膜を高分子フィルムに
付与するのに、その密着性等を向上させるために高分子
フィルムと導電性膜の間に第３層を形成させたものであ
っても何ら差し障りはなく、むしろ高分子フィルムと導
電性膜の密着性を上げるということは、その透明導電性
フィルムの可とう性や加工性を向上させるために望まし
いものである。[0008] Furthermore, when applying these conductive films to a polymer film, a third layer is formed between the polymer film and the conductive film in order to improve the adhesion. However, it is desirable to increase the adhesion between the polymer film and the conductive film in order to improve the flexibility and processability of the transparent conductive film.
【０００９】導電膜層上にコーティングされるトップコ
ート層は、ＥＬランプの発光層との接着性を上げるため
に、発光層のバインダー剤として用いられるシアノエチ
ル系高分子薄膜が最も適している。具体的には、シアノ
エチル化ヒドロキシセルロース、シアノエチル化プルー
ラン、シアノエチル化ポバール、シアノエチル化フェノ
キシ化合物、シアノエチル化サッカロース、シアノエチ
ル化ソルビトール等が用いられる。これらの化合物は単
体で用いてもよいが、適当に組み合わせて用いることも
できる。しかしながら、このトップコートに用いられる
シアノエチル系高分子は、ハロゲン、アニオン、金属の
イオン性不純物含有量が１０ｐｐｍ以下であることが肝
要であり、それ以上の含有量の場合、ＥＬランプの寿命
を向上させることはできない。[0009] The top coat layer coated on the conductive film layer is most preferably a cyanoethyl polymer thin film used as a binder agent for the light emitting layer in order to improve adhesion to the light emitting layer of the EL lamp. Specifically, cyanoethylated hydroxycellulose, cyanoethylated pullulan, cyanoethylated poval, cyanoethylated phenoxy compound, cyanoethylated saccharose, cyanoethylated sorbitol, etc. are used. These compounds may be used alone or in appropriate combinations. However, it is important that the cyanoethyl polymer used in this top coat has an ionic impurity content of halogens, anions, and metals of 10 ppm or less, and if the content is higher than that, it will improve the life of the EL lamp. I can't let you.
【００１０】また薄膜形成法としては、一般に溶剤を用
いた塗布法が用いられ、ディップ法、ロールコーター法
、ドクターブレード法、スピンナー法等の常法が用いら
れる。塗布後乾燥し必要に応じて硬化させて本願発明の
ＥＬランプ用透明導電性フィルムが得られる。[0010] As a thin film forming method, a coating method using a solvent is generally used, and conventional methods such as a dipping method, a roll coater method, a doctor blade method, and a spinner method are used. After coating, it is dried and, if necessary, cured to obtain the transparent conductive film for EL lamps of the present invention.
【００１１】[0011]
【作用】ハロゲン、アニオン、金属のイオン性不純物含
有量が１０ｐｐｍ以下のシアノエチル系高分子の薄膜を
トップコート層として形成することにより、ＥＬランプ
の寿命を向上することができた。[Function] By forming a thin film of a cyanoethyl polymer containing 10 ppm or less of ionic impurities such as halogens, anions, and metals as a top coat layer, it was possible to improve the life of the EL lamp.
【００１２】0012
実施例１
７５μｍのポリエチレンテレフタレートフィルム上にス
パッタ法によって、インジウム・スズ酸化物膜（ＩＴＯ
膜）を厚さ３００オングストロームに形成し、その上に
、ハロゲン、アニオン、金属のイオン性不純物含有量が
１０ｐｐｍ以下のシアノエチルセルロースをトップコー
ト層として２μｍの厚さに塗布し乾燥させた。この様に
して作成した透明導電性フィルムを硫化亜鉛系の蛍光体
を用いたＥＬランプに組み込んだ。Example 1 An indium tin oxide film (ITO) was deposited on a 75 μm polyethylene terephthalate film by sputtering.
A film) was formed to a thickness of 300 angstroms, and cyanoethyl cellulose containing 10 ppm or less of ionic impurities such as halogens, anions, and metals was applied thereon as a top coat layer to a thickness of 2 μm and dried. The transparent conductive film thus prepared was incorporated into an EL lamp using a zinc sulfide-based phosphor.
【００１３】比較例１
実施例において、ハロゲン、アニオン、金属のイオン性
不純物含有量が１０ｐｐｍ以上のシアノエチルセルロー
スをトップコート層とした透明導電性フィルムを作成し
、以下同様にしＥＬランプを作成した。Comparative Example 1 In Example, a transparent conductive film with a top coat layer of cyanoethyl cellulose containing 10 ppm or more of ionic impurities such as halogens, anions, and metals was prepared, and EL lamps were prepared in the same manner.
【００１４】比較例２
実施例において、シアノエチルセルロースを用いずに透
明導電性フィルムを作成し、以下同様にＥＬランプを作
成した。Comparative Example 2 In Example, a transparent conductive film was made without using cyanoethylcellulose, and an EL lamp was made in the same manner.
【００１５】実施例と比較例について、５０℃、相対湿
度９０％の雰囲気中で、１００Ｖ、３００ＨｚにてＥＬ
ランプを発光させ続け、輝度の変化を追跡して寿命を測
定した。実施例では、輝度の半減時間が３００時間で、
ＩＴＯ膜の黒化もないのに対して、比較例１、２では、
輝度の半減時間は１００時間で、３００時間後にはＩＴ
Ｏ膜が部分的に黒化した。Regarding the examples and comparative examples, EL was measured at 100 V and 300 Hz in an atmosphere of 50° C. and 90% relative humidity.
The lamp continued to emit light, and its lifespan was measured by tracking changes in brightness. In the example, the luminance half-life time is 300 hours,
While there was no blackening of the ITO film, in Comparative Examples 1 and 2,
The brightness half-life time is 100 hours, and after 300 hours, IT
The O film was partially blackened.
【００１６】[0016]
【発明の効果】本発明に従うとＥＬランプに要求される
他の諸特性を劣化させることなく、ＥＬランプの寿命を
向上させる透明導電性フィルムを得ることができる。According to the present invention, it is possible to obtain a transparent conductive film that extends the life of an EL lamp without deteriorating other characteristics required for the EL lamp.
Claims (1)
電性を有する皮膜を積層し、更に該皮膜上にハロゲン、
アニオン、金属のイオン性不純物含有量が１０ｐｐｍ以
下のシアノエチル系高分子の薄膜をトップコート層とし
て形成したことを特徴とするエレクトロルミネセンスラ
ンプ電極用透明導電性フィルム。Claim 1: A transparent conductive film is laminated on one side of a transparent polymer film, and halogen,
A transparent conductive film for an electroluminescent lamp electrode, characterized in that a thin film of a cyanoethyl polymer having an anion and metal ionic impurity content of 10 ppm or less is formed as a top coat layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3198953A JPH04334897A (en) | 1991-05-09 | 1991-05-09 | Transparent conductive film for el lamp electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3198953A JPH04334897A (en) | 1991-05-09 | 1991-05-09 | Transparent conductive film for el lamp electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04334897A true JPH04334897A (en) | 1992-11-20 |
Family
ID=16399689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3198953A Pending JPH04334897A (en) | 1991-05-09 | 1991-05-09 | Transparent conductive film for el lamp electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04334897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002054834A3 (en) * | 2000-12-28 | 2003-01-30 | 3M Innovative Properties Co | Electroluminescent element |
| KR101081524B1 (en) * | 2004-04-07 | 2011-11-08 | 나노캠텍주식회사 | Conductive Film and Sheet, and Method for preparing the same |
-
1991
- 1991-05-09 JP JP3198953A patent/JPH04334897A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002054834A3 (en) * | 2000-12-28 | 2003-01-30 | 3M Innovative Properties Co | Electroluminescent element |
| KR101081524B1 (en) * | 2004-04-07 | 2011-11-08 | 나노캠텍주식회사 | Conductive Film and Sheet, and Method for preparing the same |
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