JPS6313240A - Color cathode-ray tube - Google Patents
Color cathode-ray tubeInfo
- Publication number
- JPS6313240A JPS6313240A JP15600786A JP15600786A JPS6313240A JP S6313240 A JPS6313240 A JP S6313240A JP 15600786 A JP15600786 A JP 15600786A JP 15600786 A JP15600786 A JP 15600786A JP S6313240 A JPS6313240 A JP S6313240A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- film
- fe3o4
- ray tube
- color cathode
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000003746 surface roughness Effects 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract description 26
- 239000000463 material Substances 0.000 abstract description 7
- 238000004299 exfoliation Methods 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241000238366 Cephalopoda Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、鉄系よりなり、かつ表面にＦｅ、０．膜が形
成されたフレームによって支えられたシャドウマスクを
有するカラーブラウン管に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is made of iron-based material and has Fe, 0. A color cathode ray tube having a shadow mask supported by a membrane-formed frame.
シャドウマスクを有するカラーブラウン管は、概略第３
図に示すような構造よりなる。即ち、電子ビームにより
異なる色に発光するけい光面（図示せず）を内面ｌこ有
するパネル部１と、このパネル部１に近接して配置され
前記けい光面の一部ｌこ電子ビームを照射するための多
数の孔を有するシャドウマスク２と、このシャドウマス
ク２を支えるフレーム３と、このフレーム３をパネル部
１１こ固定するスプリング（図示せず）と、パネル部Ｉ
ＩＣ接続しており内面に導電性物質を塗布したファンネ
ル４と、このファンネル４に接続し電子ビームを発生す
る電子銃（図示せず）を内蔵するネック５などからなっ
ている。A color cathode ray tube with a shadow mask is approximately
It consists of the structure shown in the figure. That is, a panel part 1 has a fluorescent surface (not shown) on its inner surface that emits light in different colors depending on the electron beam, and a part of the fluorescent surface located close to the panel part 1 emits the electron beam. A shadow mask 2 having a large number of holes for irradiation, a frame 3 that supports this shadow mask 2, a spring (not shown) that fixes this frame 3 to a panel part 11, and a panel part I
It consists of a funnel 4 that is connected to an IC and whose inner surface is coated with a conductive material, and a neck 5 that is connected to the funnel 4 and houses an electron gun (not shown) that generates an electron beam.
ところで、かかるカラーブラウン管の製造工程では、４
００℃前後のベーキング工程が数回あり、管内材料とし
て用いられる鉄系の材料では、酸化による錆が発生し易
く、かつその錆はもろく脱落しカラーブラウン管の動作
中にスパークを起す誘因となりやすい為に、シャドウマ
スク２及びフレーム３等の表面に緻密なＦｅ、ｏ４から
なる黒化膜を形成し、脱落しやすい蛸の発生を防いでい
る。更にシャドウマスク２及びフレーム３等は動作中に
は電子ビームにより加熱され熱膨を起すが前記黒化膜は
熱輻射によりシャドウマスク２及びフレ−ム３の温度上
昇防止の役割をも持っている。By the way, in the manufacturing process of such a color cathode ray tube, 4
There is a baking process at around 00°C several times, and the iron-based material used for the inside of the tube is prone to rust due to oxidation, and the rust is brittle and falls off, which can easily cause sparks during operation of the color cathode ray tube. In addition, a dense blackened film made of Fe and O4 is formed on the surfaces of the shadow mask 2, frame 3, etc. to prevent the formation of octopuses that are likely to fall off. Furthermore, the shadow mask 2, frame 3, etc. are heated by the electron beam during operation and undergo thermal expansion, but the blackened film also has the role of preventing the temperature of the shadow mask 2 and frame 3 from rising due to thermal radiation. .
従来、シャドウマスク及びフＶ−ムの黒化膜の形成につ
いては、例えば特開昭５９−１７５５３５号公報（こ示
すようｌこ、緻密なＦｅ３Ｏ４膜を形成する技術につい
て開示がなされている。しかし、素材の表面性状の点に
ついては何ら配慮されていない。Conventionally, regarding the formation of a blackened film for a shadow mask and film, for example, Japanese Patent Laid-Open No. 59-175535 (as shown in this article) discloses a technique for forming a dense Fe3O4 film. , no consideration was given to the surface properties of the material.
上記従来技術はフＶ−ムの素材の表面性状の点ｌこつい
て配慮がされておらず、かかる技術におけるフＶ−ムの
表面粗さは、第２図に示すようＥこ最大で１０μｍ、１
０点平均表面粗さで５μｍ以下となっている。このよう
な平滑な面に緻密なＦｅ、０゜膜を形成するので、厚膜
になり過ぎ、剥離し易いという問題があった。The above-mentioned conventional technology does not take into consideration the surface quality of the film material, and the surface roughness of the film film in this technology is at most 10 μm, as shown in FIG. 1
The zero point average surface roughness is 5 μm or less. Since a dense 0° film of Fe is formed on such a smooth surface, there is a problem that the film becomes too thick and easily peels off.
剥離したＦｅ３Ｏ４膜の異物が電極間にはさまれると、
電極間のスパークを誘発する。また異物がシャドウマス
クの孔の一部を塞いだ場合Ｅこは、対応するけい光面の
一部が発光しない、いわゆるマスクつまりを発生させる
。When foreign matter in the peeled Fe3O4 film gets caught between the electrodes,
Induces a spark between the electrodes. Furthermore, if foreign matter blocks part of the hole in the shadow mask, a so-called mask clogging occurs in which the corresponding part of the fluorescent surface does not emit light.
本発明の目的は、フレームｌこ形成されたＦｅ、Ｏ４膜
の剥離しｌこくいカラーブラウン管を提供することｌこ
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a color cathode ray tube in which the Fe and O4 films formed on the frame are less peelable.
上記目的は、フレームの素地の表面粗さを１０点平均表
面粗さで６〜４０μｍ１こすることにより達成される。The above object is achieved by reducing the surface roughness of the frame substrate to a 10-point average surface roughness of 6 to 40 μm1.
鉄素地とＦｅ３Ｏ４膜の接触面積が増大し、かつ密着性
が向上するので、Ｆｅ、０４膜が剥離しにくくなる。Since the contact area between the iron base and the Fe3O4 film increases and the adhesion improves, the Fe,04 film becomes difficult to peel off.
第３図に示すフレーム３の鉄素地の表面が従来は平滑で
あるため、鉄素地に比べて密度の高いＦｅ、０．膜を形
成すると、厚膜になって剥離し易い点に注目し、フＶ−
ム３の表面を粗すことＥこよって微細な凹凸を形成し、
Ｆｅ、０４膜の密着性を向上させた。Conventionally, the surface of the iron base of the frame 3 shown in FIG. Focusing on the fact that when a film is formed, it becomes thick and easily peels off,
Roughening the surface of the layer 3, thereby forming fine irregularities,
Improved adhesion of Fe, 04 film.
第１図はクリッド８０にツチュー製の商品名）をフレー
ム３の表面に叩き付けて微細な凹凸を形成したもので、
同図＋ａ）は厚さ１．０簡のフＶ−ムの表面を１０点平
均表面粗さで２０μｍとした場合を、同図（ｂ）は厚さ
２〜２．３ｍのフレームの表面を１０点平均表面粗さで
４０μｒｒＬｌこした場合を示す。Figure 1 shows a lid 80 with fine irregularities formed by hitting the surface of the frame 3 with Tuchu (product name).
Figure +a) shows the surface of a frame with a thickness of 1.0 m with a 10-point average surface roughness of 20 μm, and Figure (b) shows the surface of a frame with a thickness of 2 to 2.3 m. This shows the case where the surface roughness is 40 μrrLl with a 10-point average surface roughness.
このように表面を粗くしたフレームｉｎ Ｆｅ３Ｏ４ｇ
を形成し、Ｆｅ３Ｏ４膜の剥離防止効果（こついて調べ
たところ、剥離量は従来の場合に比べて半分以下であっ
た。前記Ｆｅ、０．膜の剥離防止効果テストは、通常の
塗膜の密着性テストと同様に、テープ（例えば積木化学
製のセキスイＬＮ）をＦｅ３Ｏ４膜上に貼り、引き剥し
た時Ｅこテープ番こより剥し取られたＦｅ３Ｏ４膜の量
（Ｆｅ、０４膜は黒色を示しているのでテープ色の黒さ
で）で判定した。Frame with rough surface like this in Fe3O4g
was formed, and the peeling prevention effect of the Fe3O4 film (after careful investigation, the amount of peeling was less than half that of the conventional case.) The peeling prevention effect test of the Fe,0. Similar to the adhesion test, when a tape (for example Sekisui LN manufactured by Block Chemical Co., Ltd.) was pasted on the Fe3O4 film and peeled off, the amount of Fe3O4 film that was peeled off from the tape (Fe, 04 film showed black color) was measured. The judgment was made based on the blackness of the tape.
フレームの素地の１０点平均表面粗さは、４１μｍ以上
であると、容易に脱落するパリ状の鉄片を発生し易いた
め、また５μｍ以下では従来と同等であるので、６〜４
０μｍが好適である。The 10-point average surface roughness of the base material of the frame is 6-4.
0 μm is preferred.
なお、フレーム３の表面を粗くする方法は、前記したよ
うにクリッドを叩き付ける方法以外に、例えば酸ｉこよ
るエツチング作用によってもよい。The surface of the frame 3 may be roughened by, for example, etching with acid, in addition to the above-mentioned method of hitting the lid.
またシャドウマスクに床用することも可能である。It is also possible to use the floor as a shadow mask.
本発明ｆこよれば、フレームの素地の表面粗さが１０点
平均表面粗さで６〜４０μｍに形成してなるので、鉄素
地とＦｅ５０４膜の接触面積が増して密着性が向上し、
また密度の異なる物質量の歪を細かく分散できることに
より、Ｆｅ３Ｏ４膜の剥離が防止される。またフレーム
を成形する過程で形成されるパリなどの脱落し易い鉄片
も同時Ｅこ除去できるという利点がある。According to the present invention, the surface roughness of the frame base is formed to a 10-point average surface roughness of 6 to 40 μm, so the contact area between the iron base and the Fe504 film is increased and the adhesion is improved.
Further, by finely dispersing the strain caused by the amounts of substances having different densities, peeling of the Fe3O4 film is prevented. Further, there is an advantage that iron pieces that are formed during the process of molding the frame and are likely to fall off can be removed at the same time.
第１図＋ａ）（ｂ）はそれぞれ本発明になるカラーブラ
ウンｙｔこ用いるフレームの表面粗さの一実施例を示す
図、第２図は従来のフレームの表面粗・さの図、第３図
はカラーブラウン管の概略縦断面図である。
２・・・シャドウマスク、 ３・・・フレーム。Figures 1+a) and (b) are diagrams showing an example of the surface roughness of a frame used in color brown yt according to the present invention, Figure 2 is a diagram showing the surface roughness of a conventional frame, and Figure 3 is a schematic vertical cross-sectional view of a color cathode ray tube. 2... Shadow mask, 3... Frame.
Claims (1)
されたフレームによつて支えられたシャドウマスクを有
するカラーブラウン管において、前記フレームの素地の
表面粗さが１０点平均表面粗さで６〜４０μｍであるこ
とを特徴とするカラーブラウン管。1. In a color cathode ray tube having a shadow mask supported by a frame made of iron and having a Fe_3O_4 film formed on the surface, the surface roughness of the base of the frame is 6 to 40 μm as a 10-point average surface roughness. A color cathode ray tube characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15600786A JPS6313240A (en) | 1986-07-04 | 1986-07-04 | Color cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15600786A JPS6313240A (en) | 1986-07-04 | 1986-07-04 | Color cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6313240A true JPS6313240A (en) | 1988-01-20 |
Family
ID=15618287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15600786A Pending JPS6313240A (en) | 1986-07-04 | 1986-07-04 | Color cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6313240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01239736A (en) * | 1988-03-22 | 1989-09-25 | Hitachi Ltd | Formation of shadow mask structure and oxide film of frame |
| JPH0446343U (en) * | 1990-08-21 | 1992-04-20 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223259A (en) * | 1975-08-15 | 1977-02-22 | Toshiba Corp | Cathode-ray tube for color |
| JPS55154042A (en) * | 1979-05-18 | 1980-12-01 | Mitsubishi Electric Corp | Color cathode-ray tube |
-
1986
- 1986-07-04 JP JP15600786A patent/JPS6313240A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223259A (en) * | 1975-08-15 | 1977-02-22 | Toshiba Corp | Cathode-ray tube for color |
| JPS55154042A (en) * | 1979-05-18 | 1980-12-01 | Mitsubishi Electric Corp | Color cathode-ray tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01239736A (en) * | 1988-03-22 | 1989-09-25 | Hitachi Ltd | Formation of shadow mask structure and oxide film of frame |
| JPH0446343U (en) * | 1990-08-21 | 1992-04-20 |
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