JPH0471289B2 - - Google Patents
Info
- Publication number
- JPH0471289B2 JPH0471289B2 JP9246083A JP9246083A JPH0471289B2 JP H0471289 B2 JPH0471289 B2 JP H0471289B2 JP 9246083 A JP9246083 A JP 9246083A JP 9246083 A JP9246083 A JP 9246083A JP H0471289 B2 JPH0471289 B2 JP H0471289B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- phosphor
- light
- shaped
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 36
- 239000003973 paint Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- -1 Prolonik L-92 Chemical compound 0.000 description 1
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
- H01J29/327—Black matrix materials
-
- 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
- H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas
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】
〔発明の技術分野〕
本発明はカラー受像管蛍光面の形成方法に係
り、特に帯状またはドツト状の蛍光体層を取り囲
むように光吸収塗料の層が形成された、いわゆる
ブラツクストライプまたはブラツクマトリツクス
形のカラー受像管蛍光面の形成方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method for forming a color picture tube phosphor screen, and in particular, a method in which a layer of light-absorbing paint is formed so as to surround a band-shaped or dot-shaped phosphor layer. The present invention relates to a method of forming a so-called black stripe or black matrix type color picture tube phosphor screen.
周知のようにカラーブラウン管にはプツシユス
ルー形と称されるテレビジヨンセツトに組み込ま
れた時にカラーブラウン管のパネルの側壁部が突
き出されるようにされたものがあり、このプツシ
ユスルー形においてはパネルの側壁部の品位が悪
いと視聴者に不快感を与えることになる。
As is well known, some color CRTs are of the push-through type, in which the side wall of the panel protrudes when incorporated into a television set. If the quality of the video is poor, it will cause discomfort to the viewers.
この側壁部の品位で問題となる点を第１図及び
第２図により説明する。 Problems with the quality of this side wall portion will be explained with reference to FIGS. 1 and 2.
先ず第１図はパネル１の有効部１1内面に帯状
またはドツト状の蛍光体層形成部を除き光吸収塗
料の層２を形成したのち、帯状またはドツト状蛍
光体層３を形成する工程で、側壁部１2内面の光
吸収塗料の層２上に蛍光体スラリー残存部４が被
着されたままカラー受像管として完成されると、
この蛍光体スラリー残存部４が電子ビームの射突
により発光し、この発光により側壁部１2が不所
望な色に見える不具合がある。 First, FIG. 1 shows the process of forming a layer 2 of light-absorbing paint on the inner surface of the effective area 11 of a panel 1 , excluding the band-shaped or dot-shaped phosphor layer forming area, and then forming a band-shaped or dot-shaped phosphor layer 3. , when the color picture tube is completed with the phosphor slurry remaining portion 4 still adhered to the light-absorbing paint layer 2 on the inner surface of the side wall portion 1 2 ,
This phosphor slurry remaining portion 4 emits light due to the impact of the electron beam, and this light emission causes the problem that the side wall portion 12 appears in an undesirable color.
また、第２図はパネル１の有効部１1及び側壁
部１2内面に帯状またはドツト状の蛍光体層形成
部を除き光吸収塗料の層２を形成したのち、帯状
またはドツト状蛍光体層３形成する工程で、側壁
部１2内面の光吸収塗料の層２上に盛り上つた蛍
光体スラリー残存部４が被着された状態で図示し
ないラツカーなどのフイルミング、アルミニウム
の蒸着膜を形成し、約430℃位でベーキングする
時、蛍光体スラリー残存部４の盛り上つた近傍か
ら光吸収塗料の層２上にクラツク状の溝部５が側
壁部１2の全周または一部にでき、この線５によ
り蛍光体スラリー残存部４の背面からアルミニウ
ムが直接視聴者に見える不具合がある。 In addition, FIG. 2 shows that after a layer 2 of light-absorbing paint is formed on the inner surface of the effective part 1 1 and side wall part 1 2 of the panel 1, excluding the strip-shaped or dot-shaped phosphor layer forming part, a strip-shaped or dot-shaped phosphor layer is formed. 3. In the forming process, a film such as a lacquer (not shown) or a vapor deposited aluminum film is formed with the residual portion 4 of the phosphor slurry that has risen on the light-absorbing paint layer 2 on the inner surface of the side wall 1 2. When baking at approximately 430°C, a crack-shaped groove 5 is formed on the light-absorbing paint layer 2 from the vicinity of the bulge of the residual phosphor slurry 4 on the entire circumference or a part of the side wall 1 2 . There is a problem in that the aluminum is directly visible to the viewer from the back side of the phosphor slurry remaining portion 4 due to the line 5.
即ち、第１図の場合、第２図の場合、いずれも
プツシユスルー形においては視聴者に対して不快
感を与えないという問題点があつた。 That is, in the case of FIG. 1 and the case of FIG. 2, there was a problem in that the push-through type did not cause discomfort to the viewer.
本発明は前述した問題点に鑑みてなされたもの
であり、特に第２図のアルミニウムが直接視聴者
に見える不具合を防止することが可能なカラー受
像管蛍光面の形成方法を提供することを目的とし
ている。
The present invention has been made in view of the above-mentioned problems, and in particular, it is an object of the present invention to provide a method for forming a color picture tube phosphor screen that can prevent the problem of the aluminum directly visible to the viewer as shown in FIG. It is said that
本発明はパネルの内面に帯状またはドツト状の
蛍光体層形成部を除き光吸収塗料の層を形成した
のち、重クロム酸アンモニウム、ポリビニールア
ルコール、界面活性剤及び純水からなるプリコー
ト液で光吸収塗料の層を処理したのち、順次蛍光
体層の形成、フイルミング、アルミニウムの蒸
着、ベーキングを行なうことを特徴とするカラー
受像管蛍光面の形成方法である。
In the present invention, a layer of light-absorbing paint is formed on the inner surface of the panel by removing the band-shaped or dot-shaped phosphor layer formation area, and then a pre-coat liquid consisting of ammonium dichromate, polyvinyl alcohol, a surfactant, and pure water is applied to the panel. This method of forming a color picture tube phosphor screen is characterized in that after processing an absorbing paint layer, a phosphor layer is formed, filming, aluminum vapor deposition, and baking are performed in sequence.
光吸収塗料の層にクラツク状の溝部が発生する
原因を考えて見ると、帯状またはドツト状の蛍光
体層を形成する蛍光体スラリーの組成は蛍光体と
重クロム酸アンモニウム及びポリビニールアルコ
ールからなつている。そして第１図及び第２図の
蛍光体スラリー残存部４には比較的重クロム酸ア
ンモニウムが多くなつている。この重クロム酸ア
ンモニウムは、強力な酸化剤であるため、３色
（緑、青、赤）の蛍光体スラリーを順次塗布、乾
燥、露光、現像して蛍光体層を形成したのち、フ
イルミングを行ない、アルミニウムを蒸着し、そ
の後、蛍光体スラリー中の有機物を約430℃位で
ベーキングすると、このベーキング工程において
蛍光体スラリー残存部４の盛り上つた部分がフイ
ルムベーキング中に光吸収塗料の層の一部と他の
部分に比較して強力に燃焼し、その結果約0.5mm
幅前後のクラツク状の溝部としてパネルの側壁部
に現れたものである。この溝部の線は蛍光体スラ
リー残存部４の盛り上つた部分と一致する。発明
者らの実験によればクラツク状の溝部の発生は重
クロム酸アンモニウムの量との相関性が強く働い
ていることがわかつた。
Considering the cause of crack-like grooves in the light-absorbing paint layer, the composition of the phosphor slurry that forms the band-like or dot-like phosphor layer is composed of phosphor, ammonium dichromate, and polyvinyl alcohol. ing. The residual portion 4 of the phosphor slurry in FIGS. 1 and 2 contains a relatively large amount of ammonium dichromate. Ammonium dichromate is a strong oxidizing agent, so a phosphor slurry of three colors (green, blue, and red) is sequentially applied, dried, exposed, and developed to form a phosphor layer, and then filming is performed. , aluminum is vapor-deposited, and then the organic matter in the phosphor slurry is baked at about 430°C. In this baking process, the raised part of the phosphor slurry remaining portion 4 becomes part of the light-absorbing paint layer during film baking. burns more strongly than other parts, resulting in approximately 0.5mm
This appears as a crack-shaped groove on the side wall of the panel at the front and back of the width. The line of this groove coincides with the raised portion of the phosphor slurry remaining portion 4. According to experiments conducted by the inventors, it has been found that the occurrence of crack-like grooves is strongly correlated with the amount of ammonium dichromate.
本発明はこれら考察や裏付実験の結果なされた
ものであり、パネルの側壁部の内面に盛り上つた
蛍光体スラリー残存部の強力な燃焼を緩和する方
法として帯状またはドツト状の蛍光体層形成部を
除き光吸収塗料の層を形成し、次に各色の蛍光体
スラリーにより帯状またはドツト状の蛍光体層を
形成する前に、重クロム酸アンモニウム、ポリビ
ニールアルコール、例えばプロロニツクＬ−92
（商品名）からなる界面活性剤及び純水からなる
プリコート液でぬぐい、乾燥後、第１色目例えば
緑色の蛍光体スラリーから遂次塗布、乾燥、露
光、現像を行なつて蛍光体層を形成し、その後順
次フイルミング、アルミニウムの蒸着、ベーキン
グを行なう。 The present invention was made as a result of these considerations and supporting experiments, and is a method of forming a band-shaped or dot-shaped phosphor layer as a method of mitigating the strong combustion of the remaining portion of the phosphor slurry that has built up on the inner surface of the side wall portion of the panel. ammonium dichromate, polyvinyl alcohol, such as Prolonik L-92, before forming a layer of light-absorbing paint, and then forming a band-like or dot-like phosphor layer with phosphor slurry of each color.
After wiping with a pre-coat solution consisting of a surfactant consisting of (trade name) and pure water, and drying, a phosphor slurry of a first color, for example green, is sequentially coated, dried, exposed and developed to form a phosphor layer. Then, filming, aluminum evaporation, and baking are performed in sequence.
このようなプリコート液で処理することによ
り、光吸収塗料の層上に全面にわたつて極めて希
薄な酸化剤即ち重クロム酸アンモニウムが塗布さ
れることになり、最終的にベーキングした時、蛍
光体スラリー残存部の盛り上つた部分からのクラ
ツク状の溝部は発生しない。つまりベーキング時
盛り上り部からの急激な局部燃焼が起らず一様な
燃焼が行われることになる。プリコート液の組成
としては、重クロム酸アンモニウム10％溶液400
c.c.、ポリビニールアルコール固形分8.9％、４Kg、
プロロニツクＬ−92界面活性剤５％溶液、150c.c.、
純水35のものが最も良好であつた。 By treating with such a precoat solution, a very dilute oxidizing agent, ammonium dichromate, is applied over the entire surface of the light-absorbing paint layer, and when finally baked, the phosphor slurry is coated. No crack-like grooves are formed from the raised portion of the remaining portion. In other words, uniform combustion occurs without rapid local combustion from the raised portion during baking. The composition of the pre-coat liquid is ammonium dichromate 10% solution 400
cc, polyvinyl alcohol solid content 8.9%, 4Kg,
Prolonik L-92 surfactant 5% solution, 150 c.c.,
The one with pure water of 35% was the best.
上述のように本発明によればパネルの側壁部内
面に塗布形成された光吸収塗料の層にクラツク状
の溝部が形成されてアルミニウム蒸着膜が浮き出
して見えるというカラー受像管の問題点をほぼ皆
無にすることが可能となり、外観品位を良好にす
ることができる。
As described above, according to the present invention, there is almost no problem with color picture tubes in which crack-like grooves are formed in the layer of light-absorbing paint applied to the inner surface of the side wall of the panel, causing the aluminum vapor-deposited film to appear exposed. This makes it possible to improve the appearance quality.
第１図は側壁部発光を示す説明図、第２図は側
壁部の光吸収塗料の層にクラツク状の溝部が発生
した状態を示す図であり、第２図ａは説明用要部
断面図、第２図ｂはパネルの簡略斜視図である。
１……パネル、１1……有効部、１2……側壁
部、２……光吸収塗料の層、３……蛍光体ストラ
イプまたはドツト、４……蛍光体スラリー残存
部、５……クラツク状の溝部。
Fig. 1 is an explanatory diagram showing light emission from the side wall, Fig. 2 is a diagram showing a state in which crack-like grooves have occurred in the layer of light-absorbing paint on the side wall, and Fig. 2a is a sectional view of the main part for explanation. , FIG. 2b is a simplified perspective view of the panel. DESCRIPTION OF SYMBOLS 1... Panel, 1 1 ... Effective part, 1 2 ... Side wall part, 2... Light absorbing paint layer, 3... Phosphor stripe or dot, 4... Fluorescent slurry remaining part, 5... Cracks shaped groove.
Claims (1)
層形成部を除き光吸収塗料の層を形成したのち、
重クロム酸アンモニウム、ポリビニールアルコー
ル、界面活性剤及び純水からなるプリコート液で
前記光吸収塗料の層を処理したのち、順次蛍光体
層の形成、フイルミング、アルミニウムの蒸着、
ベーキングを行なうことを特徴とするカラー受像
管蛍光面の形成方法。1 After forming a layer of light-absorbing paint on the inner surface of the panel except for the band-shaped or dot-shaped phosphor layer formation area,
After treating the light-absorbing paint layer with a pre-coating solution consisting of ammonium dichromate, polyvinyl alcohol, surfactant, and pure water, the steps include sequentially forming a phosphor layer, filming, and vapor deposition of aluminum.
A method for forming a color picture tube phosphor screen, which comprises baking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9246083A JPS59219832A (en) | 1983-05-27 | 1983-05-27 | Method of forming phosphor screen for color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9246083A JPS59219832A (en) | 1983-05-27 | 1983-05-27 | Method of forming phosphor screen for color picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59219832A JPS59219832A (en) | 1984-12-11 |
| JPH0471289B2 true JPH0471289B2 (en) | 1992-11-13 |
Family
ID=14054973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9246083A Granted JPS59219832A (en) | 1983-05-27 | 1983-05-27 | Method of forming phosphor screen for color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59219832A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR910007488B1 (en) * | 1989-09-23 | 1991-09-26 | 삼성전관 주식회사 | Material for manufacturing screen of color crt |
| CN1323415C (en) * | 2004-03-08 | 2007-06-27 | 彩虹集团电子股份有限公司 | Precoat liquid for colour kinescope and manufcturing method of its film |
-
1983
- 1983-05-27 JP JP9246083A patent/JPS59219832A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59219832A (en) | 1984-12-11 |
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