JPH0311532A - Cathode-ray tube - Google Patents
Cathode-ray tubeInfo
- Publication number
- JPH0311532A JPH0311532A JP14532589A JP14532589A JPH0311532A JP H0311532 A JPH0311532 A JP H0311532A JP 14532589 A JP14532589 A JP 14532589A JP 14532589 A JP14532589 A JP 14532589A JP H0311532 A JPH0311532 A JP H0311532A
- Authority
- JP
- Japan
- Prior art keywords
- conductive film
- transparent conductive
- ray tube
- panel
- cathode ray
- 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
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001887 tin oxide Inorganic materials 0.000 claims abstract description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910003437 indium oxide Inorganic materials 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- -1 alkyl silica Chemical group 0.000 description 5
- 239000000975 dye Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000001000 anthraquinone dye Substances 0.000 description 1
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006066 glass batch Substances 0.000 description 1
- 230000011132 hemopoiesis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、多種類の光学的特性が容易に得られ、高コン
1−ラス1〜でかつ静電誘導によるパネル帯電を防止し
た陰極線管に関する。Detailed Description of the Invention [Industrial Application Field] The present invention provides a cathode ray tube that can easily obtain a wide variety of optical properties, has a high convergence ratio of 1 to 1, and prevents panel charging due to electrostatic induction. Regarding.
陰極線管表示画像の高コントラスト
ために、従来技術においては、特定の光学特性(透過率
、分光特性など)を持つようにガラス生地自体を着色し
たガラスパネルを用いた陰極線管が使用されてきた。In order to achieve high contrast in cathode ray tube displayed images, the prior art has used cathode ray tubes that use glass panels whose glass fabric itself is colored to have specific optical properties (transmittance, spectral properties, etc.).
また、陰極線管のパネルは電源スイツチ点滅時の静電誘
導によって帯電し、この帯電静電気により大気中の塵埃
を吸着、堆積してパネル面を汚して画像を見難くし、ま
た、人間が触れた場合に静電気の放電によって不快な感
じを受けるという問題があった。このパネル面の帯電は
、第1図に示したように、陰極線管1のパネルガラス2
の内面に塗布されている蛍光体層5上に薄く均一に蒸着
されているアルミニウム膜6に印加された高い陽極電圧
によって、静電誘導により生ずるものであるが、この帯
電を防止する方法として、これまでに、パネルガラス表
面に酸化すず等の透明導電膜を真空蒸着する方法(実開
昭63−133049号)、それ自体が導電性を有する
酸化すず、酸化インジウムおよび酸化アンチモンの中か
ら選ばれる少なくとも1種とアルキルシリケ−1−とを
含有するアルコール溶液を完成陰極線管のパネル面に塗
布する方法(特願昭63−35212号)などの提案が
なされている。In addition, the cathode ray tube panel becomes electrically charged due to electrostatic induction when the power switch blinks, and this electrostatic charge attracts and accumulates dust in the atmosphere, staining the panel surface and making it difficult to see the image. In some cases, the discharge of static electricity may cause an unpleasant sensation. This charging on the panel surface is caused by the panel glass 2 of the cathode ray tube 1 as shown in
This is caused by electrostatic induction due to the high anode voltage applied to the aluminum film 6 thinly and uniformly deposited on the phosphor layer 5 coated on the inner surface of the phosphor layer 5.As a method to prevent this charging, So far, a method has been developed in which a transparent conductive film such as tin oxide is vacuum-deposited on the surface of the panel glass (Utility Model Application No. 133049/1983), and a transparent conductive film selected from tin oxide, indium oxide, and antimony oxide, which themselves are conductive, has been proposed. A method has been proposed (Japanese Patent Application No. 35212/1983) in which an alcohol solution containing at least one alkyl silica and an alkyl silica is applied to the panel surface of a completed cathode ray tube.
しかしながら、上記従来技術においては、それぞれ、次
のような問題点があった。However, each of the above conventional techniques has the following problems.
すなわち、まずガラス生地自体を着色したガラスパネル
を用いる場合については、該ガラスパネルの製造時にガ
ラス原材料バッチにガラスを着色する成分を添加し、こ
れを溶解成形して製造する必要があり、異なる光学特性
を有する多種類のパネルの要求に対しては、その都度ガ
ラスバッチを交換したり、あ・るいは、数多くの溶解炉
を設置することなどの必要があり、数多くの工数を要し
、製造コストが高くなるという問題があった。That is, when using a glass panel in which the glass fabric itself is colored, it is necessary to add a component for coloring the glass to a glass raw material batch at the time of manufacturing the glass panel, and then melt and mold this to manufacture the glass panel. In order to meet the demand for many types of panels with different characteristics, it is necessary to replace the glass batch each time, or to install many melting furnaces, which requires a large number of man-hours and is difficult to manufacture. There was a problem of high cost.
また、陰極線管の帯電を防止する方法の中酸化すず等の
パネル表面への真空蒸着については大規模な装置を必要
とし、また、真空処理などの工数を必要とするなどの点
から量産には不適であり、困難である。また、酸化すす
等のそれ自体導電性を有する物質とアルキルシリケ−1
へとを含有するアルコール溶液をパネル面に塗布して導
電膜を形成する方法については、パネル面に直接形成し
得ることから、量産性に優れ、低コス1〜で生産でき、
また、当然のことながら、所期の目的通りの十分な帯電
防止効果が得られるが、この場合得られる透明導電膜の
反射率がパネル単体の反射率に比べて高くなるという欠
点がある。In addition, vacuum deposition of neutral tin oxide, etc., on the panel surface, which is a method of preventing cathode ray tubes from being charged, requires large-scale equipment and requires a lot of man-hours for vacuum processing, etc., making it difficult to mass-produce. It is inappropriate and difficult. In addition, substances that themselves have conductivity such as soot oxide and alkyl silica-1
The method of forming a conductive film by coating the panel surface with an alcohol solution containing hematopoiesis has excellent mass productivity and can be produced at a low cost of 1 or more, since it can be formed directly on the panel surface.
Further, as a matter of course, a sufficient antistatic effect as intended can be obtained, but there is a drawback that the reflectance of the transparent conductive film obtained in this case is higher than that of the panel itself.
本発明の目的は、」二足従来技術の有していた課題を解
決して、異なる光学的特性が容易に得られ、高コントラ
ストでかつ静電誘導によるパネル帯電を防止することの
できる陰極線管を提供することにある。The object of the present invention is to solve the problems of the prior art, and to provide a cathode ray tube that can easily obtain different optical characteristics, has high contrast, and can prevent panel charging caused by electrostatic induction. Our goal is to provide the following.
上記目的は、陰極線管のパネル外表面に着色透明導電膜
を設けること、例えば有機染料と、それ自体が導電性を
有する酸化すず(SnO2)、酸化インジウム(I n
203)および酸化アンチモン(Sb203)の中から
選ばれる少なくとも1種と、エチルシリケートとを含有
するアルコール溶液をパネル外表面に塗布した後、10
0〜200℃程度の温度で焼成して透明導電膜を形成す
ることによって達成することができる。The above purpose is to provide a colored transparent conductive film on the outer surface of a cathode ray tube panel.
After applying an alcoholic solution containing at least one selected from 203) and antimony oxide (Sb203) and ethyl silicate to the outer surface of the panel, 10
This can be achieved by forming a transparent conductive film by firing at a temperature of about 0 to 200°C.
ここで、上記塗布液は、まず、SnO2、In2O3お
よび5b203の中から選ばれる少なくとも1種と、加
水分解反応抜脱水縮合反応によりシリカゾルを生ずるエ
チルシリケー1−と、アルコール、ケトン等の混合溶媒
と、水および触媒(酸)とからなる溶液を作成し、脱水
縮合反応を起した該液にアゾ染料、アントラキノン染料
などの有機染料の中から目的とする光学特性が得られる
ものを1種または2種以上添加することによって作成す
る。Here, the coating liquid first contains at least one selected from SnO2, In2O3 and 5b203, ethyl silica 1- which produces silica sol through a hydrolysis reaction and dehydration condensation reaction, and a mixed solvent such as alcohol, ketone, etc. A solution consisting of water and a catalyst (acid) is prepared, and one or two types of organic dyes such as azo dyes and anthraquinone dyes that can obtain the desired optical properties are added to the liquid after a dehydration condensation reaction. It is created by adding the above.
導電性物質および有機染料の添加量は目的とする特性に
応じて決定する。また、パネル面への」二足溶液の塗布
は回転塗布、浸漬塗布、吹付は塗布のいずれの方法も適
用可能であり、塗布条件は目的に応してそれぞわ設定す
る。なお、形成した着色透明導電膜は100〜200℃
程度の温度で焼成するが、好ましくは、パネルガラスと
の密着強度および表−
面抵抗を十分なものとするために、150〜200℃の
範囲で焼成を行う。The amounts of the conductive substance and organic dye to be added are determined depending on the desired characteristics. Furthermore, any method such as spin coating, dip coating, or spray coating can be used to apply the bipedal solution to the panel surface, and the coating conditions are set depending on the purpose. The temperature of the formed colored transparent conductive film is 100 to 200°C.
Preferably, the firing is performed at a temperature of 150 to 200°C in order to obtain sufficient adhesion strength and surface resistance to the panel glass.
上記のようにして形成した着色透明導電膜はエチルシリ
ケートによる安定な反応生成物と有機染料とによって形
成されているものであるため、目的とする光学特性を有
する有機染料を選定することおよびその添加量を決定す
ることだけによって、多種類の異なる着色を容易に得る
ことができる。Since the colored transparent conductive film formed as described above is formed from a stable reaction product of ethyl silicate and an organic dye, it is necessary to select an organic dye having the desired optical properties and its addition. A wide variety of different colorations can be easily obtained simply by determining the amounts.
また、それ自体が導電性を有するSnO2、In2O3
および5b203の中から選ばれる少なくとも1種に含
有する膜が形成されているため、安定かつ十分な帯電防
止効果を得ることができる。In addition, SnO2, In2O3, which themselves have conductivity
Since the film containing at least one selected from 5b203 and 5b203 is formed, a stable and sufficient antistatic effect can be obtained.
また、本着色透明導電膜は200℃以下の焼成温度で形
成することができるため、完成した陰極線管に直接適用
することが可能であり、作成が単純かつ容易で、安価に
済ませることができる。なお、本着色透明導電膜の形成
によって、透明導電膜のみの場合の高反射率を低減する
ことができる。Furthermore, since the colored transparent conductive film can be formed at a firing temperature of 200° C. or lower, it can be directly applied to a completed cathode ray tube, and can be produced simply and easily at low cost. Note that by forming the colored transparent conductive film, the high reflectance that would otherwise occur when only the transparent conductive film is used can be reduced.
以下、本発明の陰極線管について、実施例によって具体
的に説明する。Hereinafter, the cathode ray tube of the present invention will be specifically explained using examples.
まず、第1図14形陰極線管1のパネルガラス2の前表
面を酸化セリウム(CeO2)等の研磨材およびシリロ
ン(商品名。ヘンケル−白水社製)等のアルカリ洗剤を
用いて清浄化した。次いで、Sn○、+5b2o3、エ
チルシリケー1へ、混合溶媒、水および触媒からなる溶
液に有機染料を添加した混合溶液を作成し、該混合溶液
をスピンナを用いて」二足パネルガラス前表面上に均一
に塗布した後、150℃の温度で30分間焼成して着色
透明導電膜8を形成した。ここで、上記スピンナによる
塗布は、溶液滴下量10mQ、スピンナ回転速度]00
rpm、時間1分間の条件で行った。First, the front surface of the panel glass 2 of the 14-type cathode ray tube 1 in FIG. 1 was cleaned using an abrasive such as cerium oxide (CeO2) and an alkaline detergent such as Sirilon (trade name, manufactured by Henkel-Hakusuisha). Next, a mixed solution was prepared by adding an organic dye to a solution consisting of Sn○, +5b2o3, and ethyl silica 1, a mixed solvent, water, and a catalyst, and the mixed solution was uniformly spread over the front surface of the two-legged panel glass using a spinner. After coating, the colored transparent conductive film 8 was formed by baking at a temperature of 150° C. for 30 minutes. Here, the application using the spinner is performed using a solution dropping amount of 10 mQ and a spinner rotation speed]00
The test was carried out under the conditions of rpm and 1 minute.
第1表に、用いた塗布液の組成、焼成条件、得られた着
色透明導電膜の特性(色相および表面抵抗値)をまとめ
て表示した。なお、表中の塗布液組成の数字は重量%を
示したものである。Table 1 shows the composition of the coating liquid used, the firing conditions, and the characteristics (hue and surface resistance value) of the obtained colored transparent conductive film. Note that the numbers for the coating liquid composition in the table indicate weight %.
以下余白
第1表
次に、このようにして得られた試料をテレビジョン受像
機にセットし、受像機のスイッチ遮断時の表面電位とそ
の減衰について測定を行った。すなわち、パネルフェー
ス面中央から50mm離れた位置について、シシド静電
気製静電気測定器スタチロンTHを用い、温度20〜2
3℃、相対湿度30〜35%の環境条件下で測定を行っ
た。その結果、無処理の陰極線管パネルの表面電位は約
1.2kVで、300秒経過後もほとんど変化を示さな
いのに対して、本発明陰極線管パネルの表面電位は1k
V以下で一
あり、また、はとんど瞬時にOkVとなる結果を示し、
十分な帯電防止効果を有していることがわかった。Table 1 (margin) Next, the sample thus obtained was set in a television receiver, and the surface potential and its attenuation when the receiver was switched off were measured. That is, at a position 50 mm away from the center of the panel face, the temperature was set at 20 to 2
Measurements were carried out under environmental conditions of 3° C. and 30-35% relative humidity. As a result, the surface potential of the untreated cathode ray tube panel was approximately 1.2 kV, showing almost no change even after 300 seconds, whereas the surface potential of the cathode ray tube panel of the present invention was approximately 1 kV.
It is 1 below V, and shows the result that becomes OkV almost instantaneously,
It was found that it had a sufficient antistatic effect.
以上述べてきたように、陰極線管を本発明構成の陰極線
管とすること、すなわちパネル外表面に着色透明導電膜
を設けた陰極線管とすること、によって、従来技術の有
していた課題を解決して、高コントラストでかつ優れた
帯電防止効果な有する陰極線管を容易にしかも安価に提
供することができた。As described above, by making the cathode ray tube a cathode ray tube having the structure of the present invention, that is, by making the cathode ray tube a cathode ray tube with a colored transparent conductive film provided on the outer surface of the panel, the problems that the prior art had were solved. As a result, a cathode ray tube having high contrast and excellent antistatic effect can be easily provided at a low cost.
第1図は本発明陰極線管の概略の構成を示す断面図であ
る。
1・・・陰極線管 2・・・パネル3・・・ファ
ンネル 4・・・フリットガラス5・・・蛍光体
6・・・アルミニウム蒸着膜
7・・・シャドウマスク 8・・着色透明導電膜。FIG. 1 is a sectional view showing the general structure of the cathode ray tube of the present invention. 1... Cathode ray tube 2... Panel 3... Funnel 4... Frit glass 5... Phosphor 6... Aluminum vapor deposited film 7... Shadow mask 8... Colored transparent conductive film.
Claims (2)
とする陰極線管。1. A cathode ray tube characterized by having a colored transparent conductive film on the outer surface of the panel.
性を有する酸化すず、酸化インジウムおよび酸化アンチ
モンの中から選ばれる少なくとも1種とエチルシリケー
トとを含有するアルコール溶液を塗布、焼成して形成し
た着色透明導電膜であることを特徴とする特許請求の範
囲第1項記載の陰極線管。2. The colored transparent conductive film was formed by coating and baking an alcohol solution containing an organic dye, at least one selected from tin oxide, indium oxide, and antimony oxide, each of which is electrically conductive, and ethyl silicate. 2. The cathode ray tube according to claim 1, wherein the cathode ray tube is a colored transparent conductive film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14532589A JPH0311532A (en) | 1989-06-09 | 1989-06-09 | Cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14532589A JPH0311532A (en) | 1989-06-09 | 1989-06-09 | Cathode-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0311532A true JPH0311532A (en) | 1991-01-18 |
Family
ID=15382554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14532589A Pending JPH0311532A (en) | 1989-06-09 | 1989-06-09 | Cathode-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0311532A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04340534A (en) * | 1991-05-16 | 1992-11-26 | Matsushita Electric Ind Co Ltd | Lenticular lens sheet for transmission type screen |
JPH05113505A (en) * | 1991-10-22 | 1993-05-07 | Mitsubishi Electric Corp | Cathode ray tube with low-reflection film and production thereof |
US6143418A (en) * | 1996-06-11 | 2000-11-07 | Sumitomo Osaka Cement Co., Ltd. | Transparent conductive film, low-reflectivity transparent conductive film, and display device |
-
1989
- 1989-06-09 JP JP14532589A patent/JPH0311532A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04340534A (en) * | 1991-05-16 | 1992-11-26 | Matsushita Electric Ind Co Ltd | Lenticular lens sheet for transmission type screen |
JPH05113505A (en) * | 1991-10-22 | 1993-05-07 | Mitsubishi Electric Corp | Cathode ray tube with low-reflection film and production thereof |
US6143418A (en) * | 1996-06-11 | 2000-11-07 | Sumitomo Osaka Cement Co., Ltd. | Transparent conductive film, low-reflectivity transparent conductive film, and display device |
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