JPH0636341B2 - Method for forming screen surface of in-line type color picture tube - Google Patents
Method for forming screen surface of in-line type color picture tubeInfo
- Publication number
- JPH0636341B2 JPH0636341B2 JP59220005A JP22000584A JPH0636341B2 JP H0636341 B2 JPH0636341 B2 JP H0636341B2 JP 59220005 A JP59220005 A JP 59220005A JP 22000584 A JP22000584 A JP 22000584A JP H0636341 B2 JPH0636341 B2 JP H0636341B2
- Authority
- JP
- Japan
- Prior art keywords
- light source
- exposure
- face panel
- line type
- lamp
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
- H01J9/2272—Devices for carrying out the processes, e.g. light houses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、とくにインライン形式の電子銃および円形ア
パーチャ形式のシャドウマスクを備えてなるインライン
型カラー受像管のスクリーン面の形成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a screen surface of an in-line type color picture tube, which comprises an in-line type electron gun and a circular aperture type shadow mask.
従来例の構造とその問題点 ３つの電子ビーム放射口を水平一直線上に配列してなる
インライン形式の電子銃および円形のアパーチャ群を有
する円形アパーチャ形式のシャドウマスクを備えてなる
インライン型カラー受像管は、セルフコンバーゼンス構
成となし得るのみならず、高い解像度を得ることができ
るので、とくにコンピュータ端末機器のディスプレイ管
として用いられている。Structure of conventional example and its problems: In-line type color picture tube provided with an in-line type electron gun having three electron beam emitting holes arranged in a straight line and a circular aperture type shadow mask having a circular aperture group. Has a self-convergence structure and can obtain a high resolution, and is therefore particularly used as a display tube for computer terminal equipment.
ところで、かかるインライン型カラー受像管のスクリー
ン面の形成にさいしては、特殊形状の補正レンズを付加
するか、特殊な露光用光源を用いないかぎり、スクリー
ン面のとくに垂直方向周辺部での螢光体ドットに所定の
電子ビームを正しく射突させ難くなり、ミス・レジスト
レーションを生じる。By the way, when forming the screen surface of such an in-line type color picture tube, unless a specially shaped correction lens is added or a special light source for exposure is used, the fluorescent light particularly on the peripheral portion in the vertical direction of the screen surface. It becomes difficult to make a predetermined electron beam hit the body dot correctly, resulting in misregistration.
これはインライン型カラー受像管に装着される偏向ヨー
クがセルフコンバーゼンス用のものであって、同偏向ヨ
ークによって生成される偏向磁界の水平方向軸と垂直方
向軸とが管軸方向にずれることおよび円形アパーチャ形
式のシャドウマスクを用いることに起因している。This is because the deflection yoke attached to the in-line type color picture tube is for self-convergence, and the horizontal axis and the vertical axis of the deflection magnetic field generated by the deflection yoke are deviated in the tube axis direction and the circular shape is circular. This is due to the use of an aperture-type shadow mask.
そこで、従来は前述のように特殊形状の補正レンズを付
加することなどで対処してきたのであるが、かかる方法
による補正には限度がある。一方、特公昭47-5668号公
報等に開示されているような特殊な露光用光源を用いる
場合には、第１図に示すように細長い超高圧水銀ランプ
１とこれを覆うランプ覆い２との間隔を適当に調整する
ことによって前記ミス・レジストレーションを防ぐこと
ができる。しかしこの場合、ランプ覆い２のスロット３
の幅Ｗをランプ１の発光部径φと同一の寸度に設定しな
ければ、感光性塗膜に真円に近い露光点を与え得ず、Ｗ
＝φとすると露光処理時間が長大となる。なお、Ｗ＞φ
に設定すると、露光処理時間を短縮できる反面、前記露
光点が長円形となり、螢光体ドットの実質的形状も長円
形となって、隣接螢光体ドットとの間隔が過小となる。Therefore, conventionally, as described above, the correction lens having a special shape has been added, but the correction by such a method is limited. On the other hand, when a special light source for exposure as disclosed in Japanese Patent Publication No. 47-5668 is used, as shown in FIG. 1, an elongated ultra-high pressure mercury lamp 1 and a lamp cover 2 for covering the same are used. The misregistration can be prevented by adjusting the interval appropriately. In this case, however, the lamp cover 2 slot 3
If the width W of the light is not set to the same size as the diameter φ of the light emitting portion of the lamp 1, an exposure point close to a perfect circle cannot be given to the photosensitive coating film.
When = φ, the exposure processing time becomes long. Note that W> φ
When set to, the exposure processing time can be shortened, but the exposure point becomes an ellipse, and the substantial shape of the phosphor dot also becomes an ellipse, so that the interval between the adjacent phosphor dots becomes too small.
発明の目的 したがって本発明の目的とするところは、露光処理時間
の短縮ができ、しかもミス・レジストレーションを生じ
ない真円に近い露光点を生成し得るスクリーン面形成方
法を提供することにある。SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a screen surface forming method which can shorten the exposure processing time and can generate an exposure point close to a perfect circle without causing misregistration.
発明の構成 本発明のインライン型カラー受像管のスクリーン面形成
方法は、感光性塗膜および同塗膜に向き合うシャドウマ
スクを備えたフェースパネルに、細長い発光部を有する
ランプおよび前記発光部と直交するスロットを有するラ
ンプ覆いからなる光源を対向配置し、前記光源から放射
されて前記シャドウマスクの円形アパーチャを通じ、前
記スロットの幅をＷ（mm）とし、前記光源の発光部径を
φ（mm）としたとき、Ｗ＞φなる関係を有する露光用光
源を前記塗膜に与える露光処理中に、前記光源を固定し
た状態で、前記フェースパネルを前記スロットの長さ方
向へ移動するものである。According to the method of forming a screen surface of an in-line type color picture tube of the present invention, a face panel provided with a photosensitive coating film and a shadow mask facing the coating film is provided with a lamp having an elongated light emitting portion and the light emitting portion is orthogonal to the lamp. A light source composed of a lamp cover having a slot is arranged to face each other, the width of the slot is set to W (mm), and the light emitting portion diameter of the light source is set to φ (mm) through the circular aperture of the shadow mask emitted from the light source. Then, the face panel is moved in the length direction of the slot while the light source is fixed during the exposure process in which the light source for exposure having the relation of W> φ is applied to the coating film.
実施例の説明 第２図に示すよに、可動枠板４上に載置されたフェース
パネル５は、ガイドピン６による位置規正を受けて所定
の位置を占めている。ただし、可動枠板４はフェースパ
ネル５の水平軸Ｘ−Ｘに沿った間欠移動をなし得るよう
に図外の動力機構に結合されている。また、フェースパ
ネル５の前面壁内面には感光性塗膜が一様に付設されて
おり、円形アパーチャ形式シャドウマスクが前記塗膜に
向き合うようにフェースパネル５内に装着されている。Description of Embodiments As shown in FIG. 2, the face panel 5 placed on the movable frame plate 4 receives a position regulation by the guide pins 6 and occupies a predetermined position. However, the movable frame plate 4 is coupled to a power mechanism (not shown) so that the face panel 5 can be intermittently moved along the horizontal axis XX. A photosensitive coating film is evenly provided on the inner surface of the front wall of the face panel 5, and a circular aperture type shadow mask is mounted inside the face panel 5 so as to face the coating film.
一方、前記塗膜およびシャドウマスクに対して補正レン
ズ７を介し向き合うように配置された露光用光源８は、
偏向中心となるべき位置を占めており、第１図に示した
ものと同様に超高圧水銀ランプからなる細長いランプ９
と、これを覆うランプ覆い１０とを備えている。ただ
し、第３図に示すようにランプ覆い１０のスロット１１
はランプ９と直交し、スロット１１の幅Ｗはランプ９の
発光部１２の発光部φよりも大きい。そして、スロット
１１の長さ方向Ｘ′−Ｘ′はフェースパネル５の水平軸
Ｘ−Ｘと平行で、ランプ９の管軸Ｙ′−Ｙ′はフェース
パネル５の垂直軸Ｙ−Ｙと平行である。１０は露光量を
検出してカウントするカウント部で、その出力は可動枠
体４を間欠移動させるタイミングまたは光源電流を調整
制御する。On the other hand, the exposure light source 8 arranged so as to face the coating film and the shadow mask through the correction lens 7,
An elongated lamp 9 that occupies a position that should be the center of deflection and is an ultra-high pressure mercury lamp similar to that shown in FIG.
And a lamp cover 10 for covering the same. However, as shown in FIG. 3, the slot 11 of the lamp cover 10
Is orthogonal to the lamp 9, and the width W of the slot 11 is larger than the light emitting portion φ of the light emitting portion 12 of the lamp 9. The length direction X'-X 'of the slot 11 is parallel to the horizontal axis X-X of the face panel 5, and the tube axis Y'-Y' of the lamp 9 is parallel to the vertical axis Y-Y of the face panel 5. is there. A counting unit 10 detects and counts the exposure amount, and the output thereof adjusts and controls the timing of intermittently moving the movable frame 4 or the light source current.
フェースパネル５が２０インチ９０度偏向型の場合、ラ
ンプ９の発光部径φを1.5mmに、そしてスロット１１の
幅Ｗを2.5mmに設定することができる。一方、可動枠板
４によるフェースパネル５の水平軸方向移動量は、青
(B)，緑(G)および赤(R)の各露光につき、本来の設置位
置を原点０として、たとえば±１mm（両側に各１mm）に
設定することができ、間欠移動の歩幅は0.5mmに設定で
きる。つまり、−１mm，−0.5mm，０，＋５mm，＋１mm
の各位置で停止させるのであり、各停止位置での露光処
理時間はそれぞれ６秒，１２秒，１２秒，１２秒，６秒
（各色当りの合計露光処理時間は４８秒）に設定でき
る。When the face panel 5 is a 20-inch 90-degree deflection type, the diameter φ of the light emitting portion of the lamp 9 can be set to 1.5 mm, and the width W of the slot 11 can be set to 2.5 mm. On the other hand, the amount of movement of the face panel 5 by the movable frame plate 4 in the horizontal axis is blue.
For each exposure of (B), green (G) and red (R), the original installation position can be set as the origin 0, for example ± 1 mm (1 mm on each side), and the step width of intermittent movement is 0.5 mm. Can be set to. In other words, -1mm, -0.5mm, 0, + 5mm, + 1mm
The exposure processing time at each stop position can be set to 6 seconds, 12 seconds, 12 seconds, 12 seconds, and 6 seconds (total exposure processing time for each color is 48 seconds).
かかる露光処理を青(B)，緑(G)および赤(R)につき第４
図図示のように通算３回行なうと、フェースパネル５の
前面壁内面の感光性塗膜に真円に近いドット状の露光点
を、シャドウマスクのアパーチャ数の３倍に相当する数
だけ群生させることができる。なお、もしもフェースパ
ネル５を前述のように移動させないならば、光源８をＷ
＞φとなしたことにより、第５図図示のような照度分布
の長円形の露光点が塗膜上に群生することになる。とこ
ろが、前述のようなスケージュールによる移動の結果と
して、第６図図示のような照度分布をもつ真円に近い露
光点を群生させることができるのである。This exposure process is applied to the fourth for blue (B), green (G) and red (R).
As shown in the figure, when the operation is performed three times in total, dot-like exposure points close to a perfect circle are formed in the photosensitive coating film on the inner surface of the front wall of the face panel 5 in a number corresponding to three times the number of apertures of the shadow mask. be able to. If the face panel 5 is not moved as described above, the light source 8 is set to W
By setting> φ, elliptic exposure points having an illuminance distribution as shown in FIG. 5 are clustered on the coating film. However, as a result of the movement by the schedule as described above, it is possible to cluster exposure points close to a perfect circle having the illuminance distribution as shown in FIG.
前記感光性塗膜がたとえばポリビニールアルコール（Ｐ
ＶＡ）と重クロム酸アンモンとからなる合成樹脂膜であ
る場合、前述の通算３回の露光処理およびこれに続く現
像処理によって、いわゆる仮ドット群が形成される。こ
の仮ドット群上に光吸収性膜を一様に塗布形成して前記
仮ドットを溶解除去すると、いわゆるブラックマトリッ
クスが出来上るので、その多数の円形孔内に３種の螢光
体ドット群を埋め込む。つまり、仮ドットの形状は、螢
光体ドットの実質的形状を決定するので、真円に近い仮
ドットを形成することが重要となる。しかし、本発明の
スクリーン面形成方法は、仮ドットの形成時のみならず
螢光体ドットの形成時にも同様に適用することができ
る。The photosensitive coating is, for example, polyvinyl alcohol (P
In the case of a synthetic resin film composed of VA) and ammonium dichromate, a so-called temporary dot group is formed by the above-described three total exposure processes and the subsequent development process. If a light-absorbing film is uniformly formed on this temporary dot group and the temporary dot is dissolved and removed, a so-called black matrix is formed. Therefore, three types of fluorescent material dot groups are formed in the large number of circular holes. Embed. That is, since the shape of the temporary dot determines the substantial shape of the fluorescent dot, it is important to form a temporary dot that is close to a perfect circle. However, the screen surface forming method of the present invention can be applied not only when forming the temporary dots but also when forming the phosphor dots.
フェースパネル５の水平軸方向移動距離および停止位置
での露光処理時間は、ランプ９の発光部径φ、スロット
１１の幅Ｗおよびフェースパネル５のサイズ等により適
宜決定すればよい。The moving distance of the face panel 5 in the horizontal axis direction and the exposure processing time at the stop position may be appropriately determined depending on the diameter φ of the light emitting portion of the lamp 9, the width W of the slot 11, the size of the face panel 5, and the like.
発明の効果 本発明は前述のように構成されるので、Ｗ＞φによる露
光処理時間の短縮効果に加えて、ランプとランプ覆いと
の間隔調整によってミス・レジストレーションの防止効
果が得られ、しかも、真円に近い露光点を感光性塗膜上
に群生させ得るので、色ずれのない高解像度特性のイン
ライン型カラー受像管を効率よく製造することが可能と
なる。さらに、本発明は、本来露光装置に付属している
パネルの位置調整機構を一部変更するだけで容易に実施
することができるものである。EFFECTS OF THE INVENTION Since the present invention is configured as described above, in addition to the effect of shortening the exposure processing time by W> φ, the effect of preventing misregistration can be obtained by adjusting the interval between the lamp and the lamp cover. Since exposure points close to a perfect circle can be clustered on the photosensitive coating film, it is possible to efficiently manufacture an in-line type color picture tube having high resolution characteristics and no color shift. Further, the present invention can be easily implemented by only partially changing the position adjusting mechanism of the panel originally attached to the exposure apparatus.
【図面の簡単な説明】 第１図は従来の露光用光源の斜視図、第２図は本発明を
実施した露光工程における構成を示す斜視図、第３図は
第２図における光源の平面図、第４図はフェースパネル
の移動量と露光量との関係を例示する図、第５図はフェ
ースパネルを移動させない場合に生成される露光点の照
度分布図、第６図はフェースパネルを移動させることに
より生成される露光点の照度分布図である。 ４……可動枠板、５……フェースパネル、７……補正レ
ンズ、８……露光用光源、９……ランプ、１０……ラン
プ覆い。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a conventional light source for exposure, FIG. 2 is a perspective view showing a configuration in an exposure process embodying the present invention, and FIG. 3 is a plan view of the light source in FIG. FIG. 4 is a diagram illustrating the relationship between the movement amount of the face panel and the exposure amount, FIG. 5 is an illuminance distribution diagram of the exposure points generated when the face panel is not moved, and FIG. 6 is the movement of the face panel. It is an illuminance distribution chart of the exposure point produced by performing. 4 ... Movable frame plate, 5 ... Face panel, 7 ... Correction lens, 8 ... Exposure light source, 9 ... Lamp, 10 ... Lamp cover.
Claims (1)
ウマスクを備えたフェースパネルに、細長い発光部を有
するランプおよび前記発光部と直交するスロットを有す
るランプ覆いからなる光源を対向配置し、前記光源から
放射されて前記シャドウマスクの円形アパーチャを通
じ、前記スロットの幅をＷ（mm）とし、前記光源の発光
部径をφ（mm）としたとき、Ｗ＞φなる関係を有する露
光用光源を前記塗膜に与える露光処理中に、前記光源を
固定した状態で、前記フェースパネルを前記スロットの
長さ方向へ移動することを特徴とするインライン型カラ
ー受像管のスクリーン面形成方法。1. A light source composed of a lamp having an elongated light emitting portion and a lamp cover having a slot orthogonal to the light emitting portion is arranged opposite to a face panel provided with a photosensitive coating film and a shadow mask facing the same. When the width of the slot is W (mm) and the diameter of the light emitting portion of the light source is φ (mm), the exposure light source emitted from the light source and passes through the circular aperture of the shadow mask. A method for forming a screen surface of an in-line type color picture tube, wherein the face panel is moved in the length direction of the slot while the light source is fixed during the exposure treatment for applying the above-mentioned to the coating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59220005A JPH0636341B2 (en) | 1984-10-18 | 1984-10-18 | Method for forming screen surface of in-line type color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59220005A JPH0636341B2 (en) | 1984-10-18 | 1984-10-18 | Method for forming screen surface of in-line type color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6199245A JPS6199245A (en) | 1986-05-17 |
| JPH0636341B2 true JPH0636341B2 (en) | 1994-05-11 |
Family
ID=16744436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59220005A Expired - Lifetime JPH0636341B2 (en) | 1984-10-18 | 1984-10-18 | Method for forming screen surface of in-line type color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636341B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2590064B2 (en) * | 1986-04-18 | 1997-03-12 | 株式会社東芝 | Method for forming fluorescent screen of color picture tube and exposure apparatus for forming fluorescent screen |
| KR19980020316A (en) * | 1996-09-06 | 1998-06-25 | 손욱 | Black Matrix Forming Device for Color Cathode Ray Tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141141A (en) * | 1980-04-02 | 1981-11-04 | Nec Corp | Exposure device for color picture tube |
| JPS6185750A (en) * | 1984-10-02 | 1986-05-01 | Nec Corp | Exposure device for color picture tube |
-
1984
- 1984-10-18 JP JP59220005A patent/JPH0636341B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6199245A (en) | 1986-05-17 |
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