JPS6127851B2 - - Google Patents
Info
- Publication number
- JPS6127851B2 JPS6127851B2 JP52137547A JP13754777A JPS6127851B2 JP S6127851 B2 JPS6127851 B2 JP S6127851B2 JP 52137547 A JP52137547 A JP 52137547A JP 13754777 A JP13754777 A JP 13754777A JP S6127851 B2 JPS6127851 B2 JP S6127851B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- emulsion
- light
- phosphor
- forming
- 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
Links
- 239000000839 emulsion Substances 0.000 claims description 24
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004922 lacquer Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003504 photosensitizing agent Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Description
【発明の詳細な説明】
本発明は、螢光体ドツト群（または螢光体スト
ライプ群）と、その相互隙間となるべき位置にあ
らかじめ形成された光吸収性膜と、これらの膜の
背面上にメタルバツクとして一様に形成されたア
ルミニウム蒸着膜とからなるカラー受像管スクリ
ーンの形成方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a group of phosphor dots (or a group of phosphor stripes), a light-absorbing film pre-formed at a position that should be a gap between the dots, and a light-absorbing film formed on the back surface of these films. The present invention relates to a method for forming a color picture tube screen, which comprises a uniform aluminum vapor-deposited film as a metal back.
従来、メタルバツクを形成するに先だつて螢光
体ドツト群（または螢光体ストライプ群）と、光
吸収性膜の背面上に、有機質ラツカーの膜を一様
に形成しておくことが一般に行なわれている。 Conventionally, prior to forming a metal back, it has been common practice to uniformly form an organic lacquer film on the phosphor dots (or phosphor stripes) and the back surface of the light-absorbing film. ing.
すなわち、第１図の拡大図に示すように、フエ
ースプレート１の内面に、螢光体粒子２からなる
螢光体ドツトおよび光吸収性膜３を形成した後、
メタルバツクの下地層として、アクリル系の樹脂
の揮発性の溶剤で溶解した有機質のラツカー膜４
をスプレー法あるいはポーリング法等により形成
し、その後このラツカー膜４上にアルミニウム蒸
着膜５を形成して、その後加熱処理により上記ラ
ツカー膜４をガス化して消失させている。 That is, as shown in the enlarged view of FIG. 1, after forming phosphor dots made of phosphor particles 2 and a light-absorbing film 3 on the inner surface of the face plate 1,
Organic lacquer film 4 made of acrylic resin dissolved in a volatile solvent as the base layer of the metal bag.
is formed by a spraying method or a poling method, and then an aluminum vapor deposited film 5 is formed on this lacquer film 4, and then the lacquer film 4 is gasified and disappeared by heat treatment.
ここで、ラツカー膜４は、螢光体粒子２の凹凸
を平滑化してメタルバツク膜５の光沢度、平滑度
を高め、メタルバツク膜５の反射率を良好にし
て、螢光体の発光輝度を高めるものである。した
がつて、このラツカー膜４は膜厚を大きくするほ
ど螢光体粒子２の凹凸を平滑化できる。 Here, the lacquer film 4 smoothes the unevenness of the phosphor particles 2 to increase the gloss and smoothness of the metal back film 5, improves the reflectance of the metal back film 5, and increases the luminance of the phosphor. It is something. Therefore, as the thickness of the lacquer film 4 increases, the unevenness of the phosphor particles 2 can be smoothed out.
しかしながら、膜厚が大きくすぎると、ラツカ
ー膜４の除去時に発生する前記のガスの量が多く
なり、メタルバツク膜５に剥離を生ぜしめたり、
全面脱落を起したりして、メタルバツク膜５の平
滑性が損われることになる。 However, if the film thickness is too large, the amount of gas generated during removal of the lacquer film 4 will increase, causing peeling of the metal back film 5, or
The entire surface may fall off, and the smoothness of the metal back film 5 will be impaired.
ところで、カラー受像管の発光面積は全スクリ
ーン面積の35〜45％にすぎず、したがつて発光面
積に相当する面積以外でのメタルバツク膜５によ
る反射効果は不必要であり、またラツカー膜４も
不必要となる。 Incidentally, the light-emitting area of a color picture tube is only 35 to 45% of the total screen area, and therefore the reflection effect by the metal back film 5 is unnecessary in areas other than the area corresponding to the light-emitting area, and the lacquer film 4 is also unnecessary. becomes unnecessary.
さらに、従来の形成方法によると、ラツカー膜
４は揮発性の溶剤を使うものであり、取り扱い上
危険度が高い。 Furthermore, according to the conventional forming method, the lacquer film 4 uses a volatile solvent, which is highly dangerous in handling.
本発明は上記した従来のスクリーン形成方法に
よる問題点を解決するためのものであつて、従来
のラツカー膜に代えて感光性の水溶性エマルジヨ
ンを使用することにより、メタルバツク膜の剥離
現象を発生させず、不必要な部分にメタルバツク
膜を形成せず、取り扱い上安全なカラー受像管ス
クリーンの形成方法を提供するものである。 The present invention is intended to solve the above-mentioned problems with the conventional screen forming method, and by using a photosensitive water-soluble emulsion in place of the conventional lacquer film, the peeling phenomenon of the metal back film can be prevented. First, the present invention provides a method for forming a color picture tube screen that is safe to handle without forming a metal back film on unnecessary portions.
以下本発明を図面と共に実施例に基いて説明す
る。 The present invention will be described below based on examples together with drawings.
第２図ａ〜ｄは本発明の一実施例を示す工程図
であつて、まずフエースプレート１１の内面に
赤、緑、青の螢光体膜としての螢光体ドツト１２
および光吸収性膜１３からなる複合膜を形成し、
この複合膜の背面に感光性の水溶性エマルジヨン
膜１４を一様に形成する（同図ａ）。 FIGS. 2a to 2d are process diagrams showing one embodiment of the present invention, in which phosphor dots 12 are first formed as red, green, and blue phosphor films on the inner surface of the face plate 11.
and forming a composite film consisting of the light-absorbing film 13,
A photosensitive water-soluble emulsion film 14 is uniformly formed on the back side of this composite film (FIG. 1A).
ここで、感光性の水溶性エマルジヨンの材料と
しては、たとえばプライマル（日本アクリル化学
製商品名）やエスダイン（積水化学工業(株)製商品
名）等のアクリル樹脂エマルジヨンと感光剤とか
らなるものが挙げられる。感光剤としては、たと
えばポリビニルアルコール（PVA）と重クロム
酸アンモン（ADC）とからなるものが挙げられ
る。 Here, as a material for the photosensitive water-soluble emulsion, for example, a material consisting of an acrylic resin emulsion such as Primal (trade name manufactured by Nippon Acrylic Chemical Co., Ltd.) or Esdyne (trade name manufactured by Sekisui Chemical Co., Ltd.) and a photosensitizer is used. Can be mentioned. Examples of the photosensitizer include those made of polyvinyl alcohol (PVA) and ammonium dichromate (ADC).
エマルジヨン膜１４の形成後、光吸収膜１３を
マスクとしてフエースプレート１１の外面側より
光を与えてエマルジヨン膜１４を選択的に露光
し、その後、温水または水で現像することによ
り、光吸収性膜１３の背面の部分のエマルジヨン
膜１４を除去し、螢光体ドツト１２の背面の部分
にのみエマルジヨン膜１４を残留させる（同図
ｂ）。 After forming the emulsion film 14, the emulsion film 14 is selectively exposed to light by applying light from the outer surface of the face plate 11 using the light absorption film 13 as a mask, and then developed with hot water or water to form a light absorption film. The emulsion film 14 on the back surface of the phosphor dot 13 is removed, leaving the emulsion film 14 only on the back surface of the phosphor dot 12 (FIG. 2(b)).
その後、エマルジヨン膜１４の背面よりメタル
バツクとしてアルミニウム膜１５を一様に蒸着す
る（同図ｃ）。このときの状態を第３図に拡大し
て示す。第３図からもわかるように、エマルジヨ
ン膜１４は螢光体粒子１２′からなる螢光体ドツ
トの背面にのみ形成されており、螢光体粒子１
２′はその端部ではエマルジヨン膜１４で覆われ
ない所が存在する。したがつて、アルミニウム膜
１５を蒸着した際には、アルミニウム膜１５は光
吸収性膜１３の背面において螢光体粒子１２′に
直接メタルバツクされることにより、この部分で
はアルミニウム膜１５は平滑にはならず、所々で
空隙をも形成することになる。 Thereafter, an aluminum film 15 is uniformly deposited as a metal back from the back side of the emulsion film 14 (FIG. 3(c)). The state at this time is shown in an enlarged scale in FIG. As can be seen from FIG. 3, the emulsion film 14 is formed only on the back side of the phosphor dots made of phosphor particles 12';
2' has a portion not covered with the emulsion film 14 at its end. Therefore, when the aluminum film 15 is deposited, the aluminum film 15 is directly metal-backed onto the phosphor particles 12' on the back surface of the light-absorbing film 13, so that the aluminum film 15 is not smooth in this area. In addition, voids will be formed in some places.
アルミニウム膜１５の形成後、加熱処理により
エマルジヨン膜１４をガス化して消失させ、以上
でスクリーンが形成される（同図ｄ）。この加熱
処理工程において発生するガスは、第２図ｃで示
す工程において、アルミニウム膜１５が光吸収性
膜１３の背面で螢配光体粒子に直接メタルバツク
されていることになるので、螢光体粒子の間隙よ
り容易に発散され、従来のような問題点は全く発
生しない。 After forming the aluminum film 15, the emulsion film 14 is gasified and disappeared by heat treatment, and thus a screen is formed (d in the figure). The gas generated in this heat treatment step is caused by the fact that the aluminum film 15 is directly metal-backed to the fluorescent light distribution particles on the back surface of the light absorbing film 13 in the step shown in FIG. 2c. It is easily dispersed through the gaps between particles, and there are no problems associated with conventional methods.
以上説明したように本発明によれば、螢光体膜
と、この螢光体膜の相互間にあらかじめ形成され
た光吸収性膜とからなる複合膜の背面に感光性の
水溶性エマルジヨン膜を一様に形成し、しかるの
ち前記光吸収性膜をマスクとして前記エマルジヨ
ン膜を光吸収膜の背面にのみ残留させ、次いで前
記エマルジヨン膜を含む前記複合膜の背面に直接
メタルジツク膜を形成するのであり、加熱により
発生したガスは容易に発散することができ、メタ
ルバツク膜の剥離や脱落の現象が起らず、メタル
バツク膜の接着強度および平滑度が十分に得られ
る。また、露光光線をフエースプレートの外面側
から与えるため、螢光体膜の薄い部分に接してい
るエアルジヨン膜部分は、螢光体膜の厚い部分に
接しているエマルジヨン膜部分よりも強い光を受
けて比較的厚く残留し、これが平滑度をより一層
高めることになる。その上、メタルバツク膜の反
射効果を高めるために、メタルバツク膜を厚く形
成することも、あるいはエマルジヨン膜の膜厚を
大きく形成することも可能である。さらに、揮発
性の溶剤を使用しないため、取り扱いが非常に安
全である。 As explained above, according to the present invention, a photosensitive water-soluble emulsion film is provided on the back side of a composite film consisting of a phosphor film and a light-absorbing film formed in advance between the phosphor films. Then, using the light-absorbing film as a mask, the emulsion film remains only on the back surface of the light-absorbing film, and then a metal film is directly formed on the back surface of the composite film including the emulsion film. The gas generated by heating can be easily dissipated, so that the metal back film does not peel or fall off, and the metal back film has sufficient adhesive strength and smoothness. In addition, since the exposure light is applied from the outer surface of the face plate, the part of the emulsion film that is in contact with the thin part of the phosphor film receives stronger light than the part of the emulsion film that is in contact with the thicker part of the phosphor film. It remains relatively thick, which further improves the smoothness. Moreover, in order to enhance the reflective effect of the metal back film, it is possible to form the metal back film thickly or to form the emulsion film thickly. Furthermore, since no volatile solvents are used, it is extremely safe to handle.
第１図は従来のカラー受像管スクリーンの要部
断面拡大図、第２図ａ〜ｄは本発明のカラー受像
管スクリーンの形成方法の一実施例を示す工程
図、第３図は本発明にかかる要部拡大側断面図で
ある。
１１……フエースプレート、１２……螢光体
膜、１２′……螢光体粒子、１３……光吸収性
膜、１４……光硬化性の水溶性エマルジヨン膜、
１５……メタルバツク膜。
FIG. 1 is an enlarged cross-sectional view of the main parts of a conventional color picture tube screen, FIGS. FIG. 2 is an enlarged side sectional view of such a main part. 11... Face plate, 12... Fluorescent film, 12'... Fluorescent particles, 13... Light-absorbing film, 14... Photo-curable water-soluble emulsion film,
15...Metal back film.
Claims (1)
膜と、この螢光体膜の相互隙間にあらかじめ形成
された光吸収性膜とからなる複合膜をフエースプ
レートの内面に有せしめたのち、前記複合膜の背
面に感光性の水溶性エマルジヨン膜を一様に形成
し、しかるのち前記光吸収性膜をマスクとして前
記フエースプレートの外面側から与えた光により
前記エマルジヨン膜を選択的に露光し、かつ現像
することによつて前記エマルジヨン膜を前記螢光
体膜の背面にのみ残留させ、次いで前記エマルジ
ヨン膜を含む前記複合膜の背面に接してメタルバ
ツク膜を形成し、その後に前記エマルジヨン膜を
加熱により除去することを特徴とするカラー受像
管スクリーンの形成方法。1. After forming a composite film on the inner surface of a face plate, which consists of a large number of dot-shaped or striped phosphor films and a light-absorbing film formed in advance in the mutual gaps between the phosphor films, A photosensitive water-soluble emulsion film is uniformly formed on the back side of the film, and then the emulsion film is selectively exposed to light applied from the outer surface of the face plate using the light-absorbing film as a mask, and By developing, the emulsion film remains only on the back surface of the phosphor film, and then a metal back film is formed in contact with the back surface of the composite film including the emulsion film, and then the emulsion film is heated. A method for forming a color picture tube screen, which comprises removing the screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13754777A JPS5469954A (en) | 1977-11-15 | 1977-11-15 | Formation method of color picture-tube screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13754777A JPS5469954A (en) | 1977-11-15 | 1977-11-15 | Formation method of color picture-tube screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5469954A JPS5469954A (en) | 1979-06-05 |
| JPS6127851B2 true JPS6127851B2 (en) | 1986-06-27 |
Family
ID=15201237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13754777A Granted JPS5469954A (en) | 1977-11-15 | 1977-11-15 | Formation method of color picture-tube screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5469954A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5181562A (en) * | 1975-01-14 | 1976-07-16 | Tokyo Shibaura Electric Co | KARAAJUZOKANNOKEIKOMENSEIZOHOHO |
-
1977
- 1977-11-15 JP JP13754777A patent/JPS5469954A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5181562A (en) * | 1975-01-14 | 1976-07-16 | Tokyo Shibaura Electric Co | KARAAJUZOKANNOKEIKOMENSEIZOHOHO |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5469954A (en) | 1979-06-05 |
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