JP2715842B2 - Front-emitting fluorescent display tube - Google Patents
Front-emitting fluorescent display tubeInfo
- Publication number
- JP2715842B2 JP2715842B2 JP4107393A JP4107393A JP2715842B2 JP 2715842 B2 JP2715842 B2 JP 2715842B2 JP 4107393 A JP4107393 A JP 4107393A JP 4107393 A JP4107393 A JP 4107393A JP 2715842 B2 JP2715842 B2 JP 2715842B2
- Authority
- JP
- Japan
- Prior art keywords
- display tube
- fluorescent display
- anode substrate
- graphite powder
- emission type
- 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.)
- Expired - Fee Related
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 229910052783 alkali metal Inorganic materials 0.000 claims description 8
- 150000001340 alkali metals Chemical class 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 2
- 239000010936 titanium Substances 0.000 description 14
- 229910002804 graphite Inorganic materials 0.000 description 13
- 239000010439 graphite Substances 0.000 description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 3
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 3
- 229940116411 terpineol Drugs 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000005394 sealing glass Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- -1 Na and K Chemical class 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、箱形外囲器の一部を構
成している陽極基板の内面側に設けられた蛍光体層の発
光を、該陽極基板を通して観察する前面発光形蛍光表示
管に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front emission type fluorescent lamp in which the light emission of a phosphor layer provided on the inner surface side of an anode substrate constituting a part of a box-shaped envelope is observed through the anode substrate. It relates to a display tube.
【０００２】[0002]
【従来の技術】図２に示すように、従来の一般的な前面
発光形蛍光表示管は、透光性の陽極基板１と、側面板２
と背面板３からなる容器部４とを組み合わせた箱形の外
囲器５を有している。陽極基板１の内面側には蛍光体６
を有する表示部が設けられ、その上方にはフィラメント
状の陰極７が張設されている。さらに、陽極基板１と対
面する背面板３の内面には、厚膜状の黒鉛電極８が形成
されていた。この黒鉛電極８は、黒鉛、アルミナ、バイ
ンダとしての水ガラス及びビークルを混合して得た導電
性ペーストを、背面板３の内面に塗布して焼成固着させ
たものである。そしてこの黒鉛電極８には、陰極７の支
持体９から延設させたコンタクトリード１０が電気的に
接続されており、陰極７と同電位が与えられるようにな
っている。この黒鉛電極８は、外部電界による電子のチ
ャージを防止するとともに、さらに外部光を遮断し、外
囲器５内で発生したガスを吸着する作用もある。2. Description of the Related Art As shown in FIG. 2, a conventional general front emission type fluorescent display tube comprises a transparent anode substrate 1 and a side plate 2.
And a box-shaped envelope 5 in which a container part 4 composed of a back plate 3 is combined. A phosphor 6 is provided on the inner surface side of the anode substrate 1.
Is provided, and a filament-shaped cathode 7 is stretched above the display unit. Further, a thick graphite electrode 8 was formed on the inner surface of the back plate 3 facing the anode substrate 1. The graphite electrode 8 is obtained by applying a conductive paste obtained by mixing graphite, alumina, water glass as a binder, and a vehicle to the inner surface of the back plate 3 and firing and fixing the paste. A contact lead 10 extending from the support 9 of the cathode 7 is electrically connected to the graphite electrode 8 so that the same potential as that of the cathode 7 is applied. The graphite electrode 8 has a function of preventing charge of electrons due to an external electric field, blocking external light, and adsorbing gas generated in the envelope 5.
【０００３】[0003]
【発明が解決しようとする課題】一般に前記黒鉛電極８
は、無効電流を小さくするために陰極のマイナス電位に
保たれ、前記陰極７から放出される電子が黒鉛電極８に
流れ込まないようにしていた。しかしながら、陰極７の
電源が比較的高い電圧のＡＣ電源であり、コンタクトリ
ード１０が１本だけであると、コンタクトリード１０と
反対側の電位がマイナスに振れた時に、陰極７と黒鉛電
極８との間で電位差が生じ、陰極７から放出された電子
が前記黒鉛電極８に流れ込んでしまう。すると電子の持
っているエネルギーにより黒鉛電極中に含まれるＮａが
解離される。蛍光表示管の外囲器内は高真空状態なので
解離されたＮａは蒸発しやすい。蒸発したＮａが飛散
し、陰極７を汚染したり、蛍光体６の表面に付着して蛍
光体を劣化させたり、さらには封着ガラス中のＰｂＯ成
分を還元してＰｂを析出させることにより封着部の絶縁
性が低下してしまうといった問題が生じていた。Generally, the graphite electrode 8 is used.
Are kept at the negative potential of the cathode in order to reduce the reactive current, so that the electrons emitted from the cathode 7 do not flow into the graphite electrode 8. However, if the power supply of the cathode 7 is an AC power supply having a relatively high voltage and the number of the contact leads 10 is only one, when the potential on the side opposite to the contact lead 10 swings negatively, the cathode 7 and the graphite electrode 8 , A potential difference is generated, and electrons emitted from the cathode 7 flow into the graphite electrode 8. Then, Na contained in the graphite electrode is dissociated by the energy of the electrons. Since the inside of the envelope of the fluorescent display tube is in a high vacuum state, the dissociated Na easily evaporates. The evaporated Na scatters and contaminates the cathode 7, adheres to the surface of the phosphor 6 to deteriorate the phosphor, and further reduces the PbO component in the sealing glass to precipitate Pb. There has been a problem that the insulation of the attachment portion is reduced.
【０００４】本発明は、アルカリ金属、特にＮａを放出
しない導電性厚膜を備えた前面発光形蛍光表示管を提供
することを目的としている。It is an object of the present invention to provide a top emission type fluorescent display tube having a conductive thick film which does not emit an alkali metal, particularly Na.
【０００５】[0005]
【課題を解決するための手段】本発明の前面発光形蛍光
表示管は、容器部と透光性の陽極基板を有する箱形の外
囲器を備え、前記陽極基板の内面側に設けられた蛍光体
層の発光を前記陽極基板を通して観察する前面発光形蛍
光表示管において、前記陽極基板に対面する前記容器部
の内面に、黒鉛粉末とアルカリ金属以外の有機金属から
成る導電性厚膜を備えたことを特徴としている。The front emission type fluorescent display tube of the present invention comprises a box-shaped envelope having a container portion and a translucent anode substrate, and is provided on the inner surface side of the anode substrate. In a top emission fluorescent display tube for observing light emission of a phosphor layer through the anode substrate, an inner surface of the container portion facing the anode substrate is provided with a conductive thick film made of graphite powder and an organic metal other than an alkali metal. It is characterized by that.
【０００６】また本発明によれば、前記前面発光形蛍光
表示管において、平均粒径が１μｍ以下の微粒子シリカ
が黒鉛粉末に対して１０〜３０重量％混合されるように
してもよい。According to the present invention, in the front emission type fluorescent display tube, fine silica having an average particle diameter of 1 μm or less may be mixed with the graphite powder in an amount of 10 to 30% by weight.
【０００７】また本発明の前面発光形蛍光表示管によれ
ば、沸点が１００℃以上の有機溶剤に黒鉛粉末とアルカ
リ金属以外の有機金属と微粒子シリカが混合されて成る
導電ペーストを固化させて、前記導電性厚膜を形成して
もよい。According to the front emission fluorescent display tube of the present invention, a conductive paste obtained by mixing graphite powder, an organic metal other than an alkali metal, and fine-particle silica in an organic solvent having a boiling point of 100 ° C. or more is solidified. The conductive thick film may be formed.
【０００８】[0008]
【作用】黒鉛粉末と超微粒子シリカと有機チタンからな
る導電性厚膜に電子が流れ込んでもアルカリ金属、特に
Ｎａが放出されることはない。The alkali metal, especially Na, is not released even when electrons flow into the conductive thick film made of graphite powder, ultrafine silica and organic titanium.
【０００９】[0009]
【実施例】本発明の一実施例である前面発光形蛍光表示
管（以下表示管と呼ぶ。）は、図２を用いて説明した従
来の表示管と黒鉛電極以外の構成は同一である。本実施
例の表示管は、容器部の一部を構成し、陽極基板に対面
している背面板の内面に、従来の黒鉛電極とは異なる導
電性厚膜を有している。この導電性厚膜は、下記（１）
〜（４）の成分を混合して得た導電性ペーストを背面板
に印刷し、これを焼成して形成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A top emission type fluorescent display tube (hereinafter referred to as a display tube) according to an embodiment of the present invention has the same structure as the conventional display tube described with reference to FIG. The display tube of the present embodiment forms a part of a container part, and has a conductive thick film different from a conventional graphite electrode on an inner surface of a back plate facing an anode substrate. This conductive thick film has the following (1)
A conductive paste obtained by mixing the components (4) to (4) is printed on the back plate, and is formed by firing.
【００１０】 （１）黒鉛粉末 平均粒径４〜５μ （２）超微粒子シリカ ０．０１２μ（１２０Å） （３）有機チタン Ｔｉ〔ＯＣＨ2 ＣＨ（Ｃ2 Ｈ5 ）Ｃ
Ｈ（ＯＨ）Ｃ3 Ｈ7 〕 4 ，テトラキス（２エチルヘキサ
ンジオラト）チタン （４）有機溶剤 テルピネオール(1) Graphite powder Average particle size 4-5 μm (2) Ultrafine silica 0.012 μm (120 °) (3) Organotitanium Ti [OCHTwoCH (CTwoHFive) C
H (OH) CThreeH7] Four, Tetrakis (2-ethylhexa
Ndiolato) Titanium (4) Organic solvent Terpineol
【００１１】前記超微粒子シリカは、平均粒径が１μ以
下、例えば０．０１２μ（１２０Å）である。このよう
な超微粒子シリカは、四塩化珪素の酸水素炎中に於ける
加水分解による気相法で作ることができる。これを化学
式で示すと次式のようになる。 ２Ｈ2 ＋Ｏ2 ＋ＳｉＣｌ4 →ＳｉＯ2 ＋４ＨＣｌ シリカは無機材料なので、不安定な有機物質と異なり、
ペースト状にした時に安定している。また超微粒子なの
でペースト状態での印刷性がよく、焼結後はガラス成分
となるので背面板に対する固着力が大きい。The ultrafine silica has an average particle size of 1 μm or less, for example, 0.012 μm (120 °). Such ultrafine silica can be produced by a gas phase method by hydrolysis of silicon tetrachloride in an oxyhydrogen flame. This is represented by the following formula when expressed by a chemical formula. 2H 2 + O 2 + SiCl 4 → SiO 2 + 4HCl Since silica is an inorganic material, unlike an unstable organic material,
Stable when pasted. In addition, since the particles are ultrafine particles, the printability in a paste state is good, and since they become glass components after sintering, they have a large adhesive force to the back plate.
【００１２】有機金属の一例として有機Ｔｉを用いる。
この有機Ｔｉとしては、一般式がＴｉ（ＯＲ）4 で表さ
れるテトラキシチタンがある。ここでＲはアルキル基で
ある。このＴｉ（ＯＲ）4 は化学的及び物理的に不安定
なキレート化合物であり、焼成すると熱分解してガラス
状の酸化チタンが形成され、黒鉛をガラス基板に付着さ
せる作用をする。次に具体的な有機Ｔｉの例を示す。 テトラ−ｉ−プロポキシチタン Ｔｉ（Ｏ−ｉｓｏＣ3
Ｈ3 ）4 テトラ−ｎ−ブトキシチタン Ｔｉ（Ｏ−ｎＣ4 Ｈ9 ）
4 最適な例としては、例えばテトラキス（２エチルヘキサ
ンシオラト）チタンＴｉ〔ＯＣＨ2 ＣＨ（Ｃ2 Ｈ5 ）Ｃ
Ｈ（ＯＨ）Ｃ3 Ｈ7 〕4 をあげることができる。この物
質は有機溶剤とのなじみもよく、安定性にもすぐれてい
る。Organic Ti is used as an example of the organic metal.
As the organic Ti, there is tetraxytitanium represented by a general formula of Ti (OR) 4 . Here, R is an alkyl group. This Ti (OR) 4 is a chelate compound that is chemically and physically unstable, and is thermally decomposed when fired to form glassy titanium oxide, which acts to attach graphite to the glass substrate. Next, specific examples of organic Ti will be described. Tetra-i-propoxy titanium Ti (O-isoC 3
H 3 ) 4 tetra-n-butoxytitanium Ti (O-nC 4 H 9 )
4 As an optimal example, for example, tetrakis (2-ethylhexanesiorat) titanium Ti [OCH 2 CH (C 2 H 5 ) C
H (OH) C 3 H 7 ] 4 . This material is well compatible with organic solvents and has excellent stability.
【００１３】有機溶剤としては、室温でほとんど自然蒸
発せず、焼結すると蒸発する温度、例えば１００℃以上
の沸点を有する有機系の溶剤が適する。次に有機溶剤の
例を示す。 テルピネオール Ｃ10Ｈ18Ｏ 沸点 ２１４〜２２４℃ ブチル−β−オキシエチルエーテル 沸点 １７０．６
℃As the organic solvent, an organic solvent having a boiling point of at least 100 ° C., which hardly spontaneously evaporates at room temperature and evaporates upon sintering, is suitable. Next, examples of the organic solvent will be described. Terpineol C 10 H 18 O Boiling point 214-224 ° C. Butyl-β-oxyethyl ether Boiling point 170.6
° C
【００１４】次に前記導電性厚膜の製造工程を説明す
る。テトラキスチタン９０ｇをテルピネオール４２ｇの
有機溶剤で希釈してビークルを形成する。このビークル
中に超微粒子シリカ２３ｇと黒鉛粉末を入れて十分かく
はんし、各成分が均一に分散した導電性ペーストを形成
する。この導電性ペーストをスクリーン印刷法により背
面板の内面に印刷塗布する。超微粒子シリカが混入して
いるので、チクソトロピック性を有し、印刷性はよい。
そして、これを焼成し、導電性ペーストを固化して背面
板に固着させる。Next, a process of manufacturing the conductive thick film will be described. A vehicle is formed by diluting 90 g of tetrakis titanium with 42 g of organic solvent of terpineol. 23 g of ultrafine silica and graphite powder are put into this vehicle and sufficiently stirred to form a conductive paste in which each component is uniformly dispersed. This conductive paste is printed and applied to the inner surface of the back plate by a screen printing method. Since ultrafine silica particles are mixed in, it has thixotropic properties and printability is good.
Then, the conductive paste is baked, and the conductive paste is solidified and fixed to the back plate.
【００１５】図１は、従来品と本実施例の表示管を比較
した高温動作ライフ試験の結果を示すグラフである。こ
の図からわかるように、本実施例の表示管は従来品に比
べて輝度が高く、寿命が長い。なお、試験終了後、従来
品と本実施例の表示管をそれぞれＥＳＣＡ分析したとこ
ろ、従来品からは多くのＮａが検出されたが、本実施例
の表示管からはＮａはほとんど検出されなかった。FIG. 1 is a graph showing the results of a high-temperature operation life test comparing a conventional product with the display tube of this embodiment. As can be seen from this figure, the display tube of this embodiment has higher luminance and longer life than the conventional display tube. After the test was completed, the conventional product and the display tube of this example were each subjected to ESCA analysis. As a result, a large amount of Na was detected from the conventional product, but almost no Na was detected from the display tube of this example. .
【００１６】[0016]
【発明の効果】本発明の前面発光形蛍光表示管が有する
導電性厚膜は、黒鉛をＮａ，Ｋ等のアルカリ金属を含ま
ない酸化チタン、超微粒子シリカ等で固着させた構成に
なっているので、次のような効果が得られる。 （１）アルカリ金属放出による蛍光体表面及び陰極の汚
染が防止されるので輝度劣化がなく、水ガラスを固着剤
とする従来例よりも輝度が向上する。 （２）封着ガラス中のＰｂＯ成分を還元してＰｂを析出
させることもなくなり、絶縁性不良も発生しなくなっ
た。 （３）超微粒子シリカを使用しているので印刷性が向上
し、精度がよくなった。The conductive thick film of the top emission fluorescent display tube of the present invention has a structure in which graphite is fixed with titanium oxide not containing alkali metals such as Na and K, ultrafine silica or the like. Therefore, the following effects can be obtained. (1) Since the contamination of the phosphor surface and the cathode due to the release of the alkali metal is prevented, there is no luminance deterioration, and the luminance is improved as compared with the conventional example using water glass as a fixing agent. (2) The PbO component in the sealing glass was not reduced and Pb was not precipitated, and no insulation failure occurred. (3) Since ultrafine silica particles are used, printability is improved and accuracy is improved.
【図１】本発明の一実施例と従来品を比較した高温動作
ライフ試験の結果を示すグラフである。FIG. 1 is a graph showing the results of a high-temperature operation life test comparing an embodiment of the present invention and a conventional product.
【図２】従来の一般的な前面発光形蛍光表示管の断面図
である。FIG. 2 is a cross-sectional view of a conventional general front emission fluorescent display tube.
Claims (3)
の外囲器を備え、前記陽極基板の内面側に設けられた蛍
光体層の発光を前記陽極基板を通して観察する前面発光
形蛍光表示管において、 前記陽極基板に対面する前記容器部の内面に、黒鉛粉末
とアルカリ金属以外の有機金属から成る導電性厚膜を備
えたことを特徴とする前面発光形蛍光表示管。1. A front emission type including a box-shaped envelope having a container portion and a translucent anode substrate, wherein a light emission of a phosphor layer provided on an inner surface side of the anode substrate is observed through the anode substrate. A top emission type fluorescent display tube comprising: a fluorescent display tube; and a conductive thick film made of graphite powder and an organic metal other than an alkali metal is provided on an inner surface of the container portion facing the anode substrate.
黒鉛粉末に対して１０〜３０重量％混合されている請求
項１記載の前面発光形蛍光表示管。2. The front emission type fluorescent display tube according to claim 1, wherein fine silica having an average particle size of 1 μm or less is mixed with the graphite powder in an amount of 10 to 30% by weight.
末とアルカリ金属以外の有機金属と微粒子シリカが混合
されて成る導電ペーストを固化させて導電性厚膜を形成
した請求項１記載の前面発光形蛍光表示管。3. The front surface according to claim 1, wherein a conductive paste formed by mixing graphite powder, an organic metal other than an alkali metal and fine-particle silica in an organic solvent having a boiling point of 100 ° C. or higher is solidified to form a conductive thick film. Light-emitting fluorescent display tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4107393A JP2715842B2 (en) | 1993-03-02 | 1993-03-02 | Front-emitting fluorescent display tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4107393A JP2715842B2 (en) | 1993-03-02 | 1993-03-02 | Front-emitting fluorescent display tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06260116A JPH06260116A (en) | 1994-09-16 |
| JP2715842B2 true JP2715842B2 (en) | 1998-02-18 |
Family
ID=12598277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4107393A Expired - Fee Related JP2715842B2 (en) | 1993-03-02 | 1993-03-02 | Front-emitting fluorescent display tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2715842B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3103549U (en) | 2004-01-28 | 2004-08-19 | 株式会社三和エレック | Protective gear for pipe transfer |
-
1993
- 1993-03-02 JP JP4107393A patent/JP2715842B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3103549U (en) | 2004-01-28 | 2004-08-19 | 株式会社三和エレック | Protective gear for pipe transfer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06260116A (en) | 1994-09-16 |
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