JPH0760638B2 - Picture tube manufacturing method - Google Patents
Picture tube manufacturing methodInfo
- Publication number
- JPH0760638B2 JPH0760638B2 JP3133526A JP13352691A JPH0760638B2 JP H0760638 B2 JPH0760638 B2 JP H0760638B2 JP 3133526 A JP3133526 A JP 3133526A JP 13352691 A JP13352691 A JP 13352691A JP H0760638 B2 JPH0760638 B2 JP H0760638B2
- Authority
- JP
- Japan
- Prior art keywords
- picture tube
- face panel
- film
- glass bulb
- siloxane
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 239000010408 film Substances 0.000 description 17
- 239000011521 glass Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガラスバルブのフェー
スパネル部外表面での高圧帯電および外来光の鏡面反射
を防止した受像管の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a picture tube which prevents high-voltage charging on the outer surface of a face panel of a glass bulb and specular reflection of external light.
【０００２】[0002]
【従来の技術】一般に、テレビジョン受像機等に組み込
まれる受像管は、１０kV〜３０kVの加速電圧で作動する
ので、ガラスバルブのフェースパネル部外表面が高電位
に帯電しやすい。かかる高圧帯電が生じると感電する危
険があるのみならず、空気中の帯電じんあいが前記外表
面に付着する結果、再生画像が見づらくなる。2. Description of the Related Art Generally, since a picture tube incorporated in a television receiver or the like operates at an acceleration voltage of 10 kV to 30 kV, the outer surface of the face panel of the glass bulb is easily charged to a high potential. If such high-voltage charging occurs, not only there is a risk of electric shock, but also charged dust in the air adheres to the outer surface, so that the reproduced image becomes difficult to see.
【０００３】また、明るい窓や蛍光灯等からの外光がフ
ェースパネル部の外表面に映る鏡面反射が生じると、再
生画面が一層見づらくなる。If external light from a bright window, a fluorescent lamp, or the like is reflected on the outer surface of the face panel to cause specular reflection, the reproduction screen becomes more difficult to see.
【０００４】とくに、コンピュータの端末機器やワード
プロセッサ等のディスプレイ用受像管は、約３０cmの近
距離（明視距離）でオペレータと向き合うことになるの
で、ライトペン等の使用中等にフェースパネル外表面に
人体が触れやすく、心理的・生理的観点から前記高圧帯
電および鏡面反射を防ぐことが非常に重要となる。In particular, a picture tube for a display such as a terminal device of a computer or a word processor faces an operator at a short distance (clear viewing distance) of about 30 cm. It is very important for the human body to touch, and it is very important to prevent the high-voltage charging and specular reflection from a psychological and physiological viewpoint.
【０００５】そこで、受像管ガラスバルブのフェースパ
ネル部外表面に、陽イオン性または陰イオン性の界面活
性剤を塗布し、導電性をもたせることが行われてきた
が、界面活性剤は水溶性であるので、指先で触れたり濡
れ雑巾でふいたりするだけで容易に離脱し、耐久力のあ
る帯電防止手段となり得なかった。Therefore, a cationic or anionic surfactant has been applied to the outer surface of the face panel portion of the picture tube glass bulb to make it conductive, but the surfactant is water-soluble. Therefore, it was easily removed by simply touching it with a fingertip or wiping it with a wet rag, and could not be a durable antistatic means.
【０００６】一方、前述のような外光の鏡面反射を防ぐ
ために、ガラスバルブのフェースパネル部外表面に金属
蒸着膜を多層に形成することが行われている。しかし、
かかる多層構造の反射防止膜の形成にはかなりの経費を
要し、コスト高を招く。また、フェースパネル部の外表
面をエッチング等により粗面化し、前記外表面に入射し
た外来光を散乱させる受像管では、蛍光体スクリーン面
に生じた再生画像が前記外表面の凹凸でスパークリング
を起こし、いわゆるざらめ状発光となるので、かかる粗
面化処理による反射防止策は、とくに高精細度受像管に
は適しない。On the other hand, in order to prevent the above-described specular reflection of external light, a metal vapor deposition film is formed in multiple layers on the outer surface of the face panel of the glass bulb. But,
The formation of such an antireflection film having a multi-layer structure requires a considerable amount of cost, resulting in high cost. Further, in a picture tube that roughens the outer surface of the face panel portion by etching or the like and scatters the external light incident on the outer surface, a reproduced image generated on the phosphor screen surface causes sparkling due to the unevenness of the outer surface. Since the so-called rough light is emitted, the antireflection measure by the roughening treatment is not suitable for a high-definition picture tube.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、前述のスパ
ークリング現象が、ガラスバルブのフェースパネル部外
表面における凹凸の高さおよびピッチに依存して起こる
ことおよびガラス界面に屈折率の異なる材質の薄膜をオ
プチカルコンタクトさせずに微粒子状に塗布形成する
と、表面での光散乱効果が大となることに着目してなさ
れたものであり、その目的とするところは、界面活性剤
を用いたり金属蒸着膜や粗面化加工を施すことなくフェ
ースパネル部の外表面に高圧帯電および鏡面反射をほと
んど生じない受像管を得ることにある。SUMMARY OF THE INVENTION According to the present invention, the sparkling phenomenon described above occurs depending on the height and pitch of the irregularities on the outer surface of the face panel of the glass bulb, and the glass interface is made of a material having a different refractive index. This was done by paying attention to the fact that when a thin film is applied in the form of fine particles without optical contact, the light scattering effect on the surface becomes large, and the purpose is to use a surfactant or metal deposition. The object is to obtain a picture tube that hardly causes high-voltage charging and specular reflection on the outer surface of the face panel portion without applying a film or roughening process.
【０００８】[0008]
【課題を解決するための手段】本発明の受像管の製造方
法は、あらかじめ５０〜７０℃に加熱されたガラスバル
ブのフェースパネル部外表面にシロキサンのコロイド液
をスプレーして、厚さ０．０５μｍ〜１μｍのシロキサ
ン膜を形成するものである。A method of manufacturing the picture tube of the present invention
The method is based on a glass bar preheated to 50 to 70 ° C.
Siloxane colloid liquid on the outer surface of the face panel
Is sprayed to form a siloxane film having a thickness of 0.05 μm to 1 μm .
【０００９】[0009]
【作用】かかる製造方法により、あらかじめ５０〜７０
℃に加熱されたガラスバルブのフェースパネル部外表面
にシロキサンのコロイド液をスプレーして、厚さ０．０
５μｍ〜１μｍのシロキサン膜を形成しているので、比
較的簡単な膜形成処理を施すだけで、フェースパネルの
外表面に鏡面反射および高圧帯電をほとんど生じない高
画質の受像管が得られる。 According to such a manufacturing method, 50 to 70 is prepared in advance.
Outside surface of glass bulb face panel heated to ℃
Spray a siloxane colloidal solution onto the surface to a thickness of 0.0
Since a siloxane film of 5 μm to 1 μm is formed, the ratio
By applying a relatively simple film forming process,
A high reflectance that causes almost no specular reflection and high-voltage charging on the outer surface.
An image quality picture tube is obtained.
【００１０】[0010]
【実施例】図１において１４インチ型のカラー受像管１
は、そのガラスバルブ２のフェースパネル部３とファン
ネル部４との封着領域付近に該領域を囲繞する補強用金
属バンド５を装着してなるとともに、フェースパネル部
２の外表面に厚さ０．０５μｍ〜１μｍのシロキサン膜
６を付設してなる。ただし、シロキサン膜６はフェース
パネル部３の前面を完全に覆うのみならず側周面にもお
よび、膜の外周縁では接地電位となる金属バンド５に接
している。シロキサン膜６の素材としては、たとえば日
本コルコート化学（株）製のコルコートＰ液（商品名）
を用いることができる。この場合、まず、コルコートＰ
液９０部とメチルアルコール１０部とを混合して混合Ａ
液を調合する。ついで、カラー受像管１のガラスバルブ
２を加熱し、５０〜７０℃となったフェースパネル部３
の外表面に前記混合Ａ液をスプレーする。ノズル穴径
０．５mmのスプレーガンから２気圧の高圧空気で噴出さ
れる混合Ａ液の使用量は、前記受像管１本当たり１０ミ
リリットル〜３０ミリリットルであり、フェースパネル
部３の外表面における膜厚は０．０５μｍ〜１μｍであ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a 14-inch type color picture tube 1 is shown.
In the glass bulb 2, a reinforcing metal band 5 surrounding the area where the face panel portion 3 and the funnel portion 4 of the glass bulb 2 are sealed is attached, and the outer surface of the face panel portion 2 has a thickness of 0. A siloxane film 6 having a thickness of 0.05 μm to 1 μm is additionally provided. However, the siloxane film 6 not only completely covers the front surface of the face panel portion 3 but also extends to the side peripheral surface and is in contact with the metal band 5 at the ground potential at the outer peripheral edge of the film. Examples of the material of the siloxane film 6 include Colcoat P liquid (trade name) manufactured by Nippon Colcoat Chemical Co., Ltd.
Can be used. In this case, first, Colcoat P
Mix 90 parts of liquid and 10 parts of methyl alcohol to mix A
Prepare the liquid. Then, the glass bulb 2 of the color picture tube 1 is heated to 50 to 70 ° C.
The mixed solution A is sprayed onto the outer surface of the. The amount of the mixed liquid A ejected from a spray gun having a nozzle hole diameter of 0.5 mm with high pressure air of 2 atm is 10 ml to 30 ml per one picture tube, and the film on the outer surface of the face panel portion 3 is used. The thickness is 0.05 μm to 1 μm.
【００１１】このようにして得られたシロキサン膜６の
表面状態は、図２の顕微緯写真（倍率２００）に示すよ
うに、重なりのある小円形であり、その円形内面が平坦
部で、これを取り囲む円形外周が凸部で形成されている
と考える。そのため、受像管のフェースパネル表面で鏡
面反射を起こす外光については、平坦部では反射され、
凸部では散乱され、また受像管の表示画像ついては、平
板部ではそのまま透過し、凸部では散乱される。そし
て、この光散乱の度合は、光散乱度を表わす指標の光沢
度（グロス値）で５６であった、なお、混合Ａ液中に占
めるコルコートＰ液は、７０〜９５部の範囲から選択で
きる。また、白濁化を促進させるための希釈液はメチル
アルコールに限らず、エチルアルコール、ブチルアルコ
ールまたはこれらの含水物であってよい。The surface condition of the siloxane film 6 thus obtained is shown in the microscopic photograph (magnification: 200) of FIG .
It has a small circular shape with overlap, and the inner surface of the circular shape is flat.
The outer circumference of the circle is formed by convex parts
I think. Therefore, the mirror on the face panel surface of the picture tube
External light that causes surface reflection is reflected at the flat part,
The projection image is scattered, and the display image of the picture tube is flat.
The plate part transmits the light as it is, and the convex part scatters it. The degree of this light scattering was 56 in terms of glossiness (gloss value) as an index representing the light scattering degree. Incidentally, the Colcoat P liquid in the mixed liquid A can be selected from the range of 70 to 95 parts. . Further, the diluting liquid for promoting clouding is not limited to methyl alcohol, but may be ethyl alcohol, butyl alcohol, or a water-containing material thereof.
【００１２】シロキサン膜６を備えたカラー受像管を通
常の動作条件で作動させたところ、フェースパネル部外
表面電位は図３に曲線ａで示すとおり通電直後に０Ｖと
なり、同図に曲線ｂで示す従来構成の特性に比べて、高
圧帯電の危惧を顕著に解消し得ることが分かる。また、
フェースパネル部の外表面に明るい窓や蛍光灯等が映る
鏡面反射もほぼ完全に防止することができた。When the color picture tube provided with the siloxane film 6 was operated under normal operating conditions, the outer surface potential of the face panel portion became 0 V immediately after energization as shown by the curve a in FIG. 3, and the curve b in the figure. It can be seen that the fear of high-voltage charging can be remarkably eliminated as compared with the characteristics of the conventional configuration shown. Also,
It was also possible to almost completely prevent specular reflection of bright windows and fluorescent lights on the outer surface of the face panel.
【００１３】本発明の第２の実施例を挙げると以下のと
おりである。すなわち、まず、日本コルコート化学
（株）製のコルコートＮ−１０３Ｘ液（商品名）８５部
とエチルアルコール１５部とを混合して混合Ｂ液を調合
する。つぎに、１２インチ型モノクローム受像管ガラス
バルブのフェースパネル部の外表面、つまり前面全域か
ら側周面の補強用金属バンドにおよぶ領域に、シランカ
ップリング剤を薄く塗布し、これを５０℃程度の温度下
で乾燥させる。シランカップリング剤としては、例えば
信越化学工業（株）製のＫＢＣ１０００３（商品名）を
用いることができる。塗布したシランカップリング剤が
乾燥したのち、これと同一領域に前記混合Ｂ液をスプレ
ーにより吹きつける吹きつけの量は受像管１本当たり２
０ミリリットル〜３０ミリリットルであり、その他のス
プレー条件は前述の実施例の場合と同じである。スプレ
ー後は室温で自然乾燥させる。The second embodiment of the present invention will be described below. That is, first, 85 parts of Colcoat N-103X liquid (trade name) manufactured by Nippon Colcoat Chemical Co., Ltd. and 15 parts of ethyl alcohol are mixed to prepare a mixed liquid B. Next, a thin coating of a silane coupling agent was applied to the outer surface of the face panel of the 12-inch monochrome picture tube glass bulb, that is, the area extending from the entire front surface to the reinforcing metal band on the side peripheral surface, and this was applied at about 50 ° C. Dry at the temperature of. As the silane coupling agent, for example, KBC10003 (trade name) manufactured by Shin-Etsu Chemical Co., Ltd. can be used. After the applied silane coupling agent is dried, the mixed B solution is sprayed onto the same region as the spraying agent at a rate of 2 per picture tube.
It is 0 ml to 30 ml, and other spray conditions are the same as those in the above-mentioned embodiment. After spraying, air dry at room temperature.
【００１４】このような膜形成処理を受けた受像管のフ
ェースパネル部外表面は、前述の実施例におけると同様
に粗となり、光沢度を４５〜６５となし得る。そして、
入射光を強く散乱させるので、鏡面反射が激減する。ま
た、前述の実施例におけると同様に顕著な高圧帯電防止
効果が得られた。The outer surface of the face panel portion of the picture tube that has undergone such a film forming treatment becomes rough as in the above-mentioned embodiment, and the glossiness can be 45 to 65. And
It strongly scatters the incident light, so the specular reflection is greatly reduced. In addition, a remarkable high-voltage antistatic effect was obtained as in the above-mentioned examples.
【００１５】[0015]
【発明の効果】本発明は前述のように構成されるので、
比較的簡単な膜形成処理を施すだけで、フェースパネル
部の外表面に高圧帯電および鏡面反射をほとんど生じな
い受像管を得ることができる。Since the present invention is constructed as described above,
It is possible to obtain a picture tube that hardly causes high-voltage charging and specular reflection on the outer surface of the face panel portion only by performing a relatively simple film forming process.
【図１】本発明を実施した受像管の一部破断斜視図FIG. 1 is a partially cutaway perspective view of a picture tube embodying the present invention.
【図２】同受像管のフェースパネル部外表面に付設され
たシロキサン膜の粒子構造を示す顕微鏡写真FIG. 2 is a photomicrograph showing the particle structure of a siloxane film attached to the outer surface of the face panel of the picture tube.
【図３】同受像管の通電開始後時間に対するフェースパ
ネル部外表面電位の変化特性を、従来の受像管の同変化
特性と比較する特性図FIG. 3 is a characteristic diagram comparing the change characteristic of the outer surface potential of the face panel with respect to the time after the start of energization of the same picture tube with the same change characteristic of the conventional picture tube.
１ カラー受像管 ２ ガラスバルブ ３ フェースパネル部 ５ 金属バンド ６ シロキサン膜 1 Color Picture Tube 2 Glass Bulb 3 Face Panel 5 Metal Band 6 Siloxane Film
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中道 春樹 大阪府門真市大字門真1006番地 松下電子 工業株式会社内 (56)参考文献 実公 昭50−29410（ＪＰ，Ｙ２) 実公 昭50−26277（ＪＰ，Ｙ２) 米国特許4031553（ＵＳ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Haruki Nakamichi 1006, Kadoma, Kadoma City, Osaka Prefecture, Matsushita Electronics Industrial Co., Ltd. (56) References 26277 (JP, Y2) US Patent 4031553 (US, A)
Claims (1)
ラスバルブのフェースパネル部外表面にシロキサンのコ
ロイド液をスプレーして、厚さ０．０５μｍ〜１μｍの
シロキサン膜を形成することを特徴とする受像管の製造
方法。1. A gas preheated to 50 to 70 ° C.
On the outer surface of the face panel of the lath valve, siloxane
A method for manufacturing a picture tube, comprising spraying a Lloyd's solution to form a siloxane film having a thickness of 0.05 μm to 1 μm .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3133526A JPH0760638B2 (en) | 1991-05-08 | 1991-05-08 | Picture tube manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3133526A JPH0760638B2 (en) | 1991-05-08 | 1991-05-08 | Picture tube manufacturing method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11633683A Division JPH0228222B2 (en) | 1983-06-27 | 1983-06-27 | JUZOKAN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04230931A JPH04230931A (en) | 1992-08-19 |
| JPH0760638B2 true JPH0760638B2 (en) | 1995-06-28 |
Family
ID=15106856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3133526A Expired - Lifetime JPH0760638B2 (en) | 1991-05-08 | 1991-05-08 | Picture tube manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760638B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4031553A (en) | 1974-12-17 | 1977-06-21 | Sony Corporation | Implosion-resistant cathode ray tube with protective assembly for its face plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5026277U (en) * | 1973-07-03 | 1975-03-26 | ||
| JPS5029410U (en) * | 1973-07-09 | 1975-04-03 |
-
1991
- 1991-05-08 JP JP3133526A patent/JPH0760638B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4031553A (en) | 1974-12-17 | 1977-06-21 | Sony Corporation | Implosion-resistant cathode ray tube with protective assembly for its face plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04230931A (en) | 1992-08-19 |
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