JPH047055B2 - - Google Patents
Info
- Publication number
- JPH047055B2 JPH047055B2 JP56003060A JP306081A JPH047055B2 JP H047055 B2 JPH047055 B2 JP H047055B2 JP 56003060 A JP56003060 A JP 56003060A JP 306081 A JP306081 A JP 306081A JP H047055 B2 JPH047055 B2 JP H047055B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- film
- absorbing
- picture tube
- color picture
- 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
- 239000002245 particle Substances 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910002804 graphite Inorganic materials 0.000 claims description 11
- 239000010439 graphite Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000031700 light absorption Effects 0.000 description 5
- 239000011358 absorbing material Substances 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000007613 slurry method Methods 0.000 description 1
- 239000007921 spray 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
- H01J9/2278—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】
この発明は、フエースパネル内面に形成された
けい光体発光部相互間を、黒鉛等の非発光・光吸
収性物質からなる被膜で埋めてコントラストを向
上させた、いわゆるブラツクマトリツクス型のカ
ラー受像管けい光面の製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION This invention improves the contrast by filling the spaces between the phosphor light-emitting parts formed on the inner surface of the face panel with a coating made of a non-luminescent/light-absorbing substance such as graphite. This invention relates to a method of manufacturing a fluorescent surface of a black matrix type color picture tube.
この種のカラー受像管けい光面においては、従
来より、前記非発光・光吸収性の物質からなる被
膜の上に光反射膜を形成し、けい光体ドツト（ま
たはストライプ）から発生する光をこの光反射膜
によつてフエースパネル前方に反射して実効光出
力を増大させる試みがなされており、例えば、黒
鉛によつて形成された光吸収膜の上にアルミニウ
ムを蒸着するという手法によつて、光反射膜が形
成されている。 Conventionally, in the fluorescent surface of this type of color picture tube, a light reflecting film is formed on the coating made of the non-luminous and light-absorbing material, and the light emitted from the phosphor dots (or stripes) is reflected. Attempts have been made to increase the effective light output by reflecting the light to the front of the face panel using this light reflecting film. For example, by depositing aluminum on a light absorbing film formed of graphite, , a light reflecting film is formed.
しかし、このように光吸収膜を黒鉛等によつて
形成し、この上にアルミニウムの光反射膜を形成
する方法によると、例えば黒鉛の粒子は直径0.1
ないし0.5μm程度であるために、光吸収膜の表面
には微視的に見れば相当の凹凸が存在することと
なり、光反射膜の反射率が十分にとれない欠点が
あつた。 However, according to this method of forming a light-absorbing film of graphite or the like and forming a light-reflecting film of aluminum on top of the light-absorbing film, for example, graphite particles have a diameter of 0.1
Since the diameter of the light absorbing film is approximately 0.5 μm, microscopically, the surface of the light absorbing film has considerable unevenness, which has the disadvantage that the reflectance of the light reflecting film cannot be obtained sufficiently.
この発明は、このような従来技術の欠点を克服
するためになされたものであり、その目的は、ブ
ラツクマトリツクス型カラー受像管けい光面にお
いて、光吸収膜の上に形成される光反射膜の反射
率を上げることによつて実効出力を増大させるこ
とにある。 This invention was made to overcome the drawbacks of the prior art, and its purpose is to improve the light reflection film formed on the light absorption film in the fluorescent surface of a black matrix color picture tube. The objective is to increase the effective output by increasing the reflectance of the
このような目的を達成するために、この発明に
よるカラー受像管けい光面製造方法は、前記光吸
収膜を、非発光・光吸収性の物質に該物質の粒子
よりも小さい粒径を有する無機物質の粒子を混入
することによつて形成するものである。以下、実
施例を用いてこの発明によるカラー受像管けい光
面製造方法を詳細に説明する。 In order to achieve such an object, the method for manufacturing a fluorescent surface of a color picture tube according to the present invention provides a method for manufacturing a fluorescent surface of a color picture tube, in which the light-absorbing film is coated with an inorganic material having a particle size smaller than the particles of the material. It is formed by mixing particles of a substance. Hereinafter, the method for manufacturing the fluorescent surface of a color picture tube according to the present invention will be explained in detail using Examples.
図は、この発明によるカラー受像管けい光面製
造方法の一実施例における各工程中のフエースパ
ネルの一部を示す断面図である。先ず、同図ａに
示すように、フエースパネル１の内面にポリビニ
ルアルコールと重クロム酸アンモニウムを主体と
する光硬化性のホトレジスト２を塗布し、シヤド
ウマスク３の孔を通して、カラー受像管の３本の
電子ビームの偏向中心にほぼ相当する位置に設け
た光源からの光で順次３回の露光を行ない、光硬
化潜像を形成する。次いで温水現像を行なつて未
感光部分を溶かし去り、同図ｂに示すようにホト
レジスト膜２ｇ，２ｂ，２ｒを形成する。定着し
たこれらのホトレジスト膜２ｇ，２ｂ，２ｒは、
それぞれ緑、青、赤の各色けい光体に代替される
べきスペースを占めている。次に、同図ｃに示す
ように、非発光・光吸収性物質としての黒鉛を水
に懸濁した塗料を一面に均一塗布して光吸収膜４
を形成する。この光吸収膜４の厚みは、ブラツク
マトリツクスとしての効果の観点からは厚い方が
望ましいが、後の工程においてホトレジスト膜２
ｇ，２ｂ，２ｒの剥離が容易かつ均一に行なえる
ように配慮して0.5〜0.7μm程度に決められる。こ
の光吸収性被膜を乾燥後、その上にアルミニウム
を蒸着し、光反射膜５を形成する。次いで同図ｄ
に示すように過酸化水素水液でホトレジスト膜２
ｇ，２ｂ，２ｒをエツチングし、その上の前記光
吸収膜および光反射膜と共に温水スプレーによつ
て除去する。その後、通常のスラリー法によつて
同図ｅに示すように３色のけい光膜６ｇ，６ｂ，
６ｒを形成し、更に、フイルミング工程、アルミ
ニウム膜７の蒸着形成工程、ベーキング工程等を
経て、所望のけい光面が形成される。 The figures are cross-sectional views showing a part of the face panel during each step in an embodiment of the method for manufacturing the fluorescent surface of a color picture tube according to the present invention. First, as shown in FIG. Exposure is performed three times in sequence with light from a light source provided at a position approximately corresponding to the center of deflection of the electron beam to form a photocured latent image. Next, hot water development is performed to dissolve away the unexposed portions, thereby forming photoresist films 2g, 2b, and 2r as shown in FIG. These fixed photoresist films 2g, 2b, 2r are
They occupy spaces that should be replaced by green, blue, and red phosphors, respectively. Next, as shown in FIG.
form. The thickness of this light absorption film 4 is preferably thicker from the viewpoint of effectiveness as a black matrix, but in a later step, the photoresist film 4 is
The thickness is determined to be about 0.5 to 0.7 .mu.m in order to allow easy and uniform peeling of 2b, 2r, and 2r. After drying this light-absorbing film, aluminum is vapor-deposited thereon to form a light-reflecting film 5. Then the same figure d
Photoresist film 2 is coated with hydrogen peroxide solution as shown in
G, 2b, and 2r are etched and removed together with the above-mentioned light-absorbing film and light-reflecting film by hot water spray. Thereafter, three-color fluorescent films 6g, 6b, as shown in FIG.
6r is formed, and then a desired fluorescent surface is formed through a filming process, an evaporation process of an aluminum film 7, a baking process, etc.
この場合、前記黒鉛中に、粒子径が0.05μm程
度の二酸化ケイ素のコロイド溶液を、黒鉛に対し
て固形分として20wt％混入する。これにより、
平均して0.3μm程度の径を有する黒鉛の粒子相互
間の間隙が二酸化ケイ素の小さな粒で埋められ、
光吸収膜４の表面の平面度が良くなるため、この
光吸収膜４の表面上に形成されたアルミニウムの
光反射膜５の平面度も良くなり、その結果、反射
率が70％から80％に上昇する。 In this case, a colloidal solution of silicon dioxide having a particle size of about 0.05 μm is mixed into the graphite in an amount of 20 wt % as a solid content based on the graphite. This results in
The gaps between graphite particles with an average diameter of about 0.3 μm are filled with small particles of silicon dioxide,
Since the flatness of the surface of the light absorption film 4 improves, the flatness of the aluminum light reflection film 5 formed on the surface of the light absorption film 4 also improves, and as a result, the reflectance increases from 70% to 80%. rise to
また、黒鉛中に0.02ないし0.1μm程度の粒子径
を有するガラスの微粉末を、黒鉛に対して25wt
％混入した場合、光反射膜５の反射率は70％から
82％に上昇した。これにより、カラー受像管の実
効出力が２％向上した。 In addition, fine glass powder with a particle size of about 0.02 to 0.1 μm is added to the graphite at 25wt.
%, the reflectance of the light reflective film 5 will be from 70%.
It rose to 82%. This improved the effective output of the color picture tube by 2%.
なお、上述した実施例においては、光吸収膜
を、非発光・光吸収性の物質としての黒鉛に小粒
径の二酸化ケイ素もしくはガラスの微粉末を混入
することによつて形成する場合についてのみ説明
したが、この発明はこれに限定されるものではな
く、非発光・光吸収性の物質として例えば二酸化
マンガンを用いてもよいし、混入する無機物質
は、該非発光・光吸収性の物質の粒子よりも小さ
い平均粒径を有するものであればよい。 In the above-mentioned embodiments, only the case where the light-absorbing film is formed by mixing fine powder of silicon dioxide or glass with a small particle size into graphite as a non-light-emitting/light-absorbing substance will be described. However, the present invention is not limited thereto; for example, manganese dioxide may be used as the non-luminescent/light-absorbing substance, and the inorganic substance to be mixed may be particles of the non-luminous/light-absorbing substance. Any material having an average particle size smaller than that may be used.
また、上述した実施例においては、けい光体発
光層を形成する方法としてスラリー法を用いた場
合についてのみ説明したが、この発明はこれに限
定されるものではなく、例えば光粘着性を有する
ホトレジストを用い、けい光体を粉末状態で付着
させるいわゆるドライプロセスによつて形成する
場合についても同様の効果を得ることができるこ
とは言うまでもない。 Further, in the above-mentioned embodiments, only the case where a slurry method was used as a method for forming the phosphor emitting layer was described, but the present invention is not limited thereto. It goes without saying that the same effect can be obtained when the phosphor is formed by a so-called dry process in which the phosphor is deposited in powder form.
以上説明したように、この発明によるカラー受
像管けい光面製造方法によれば、光吸収膜を形成
する非発光・光吸収性の物質に該物質の粒子より
も小さい粒径を有する無機物質の粒子を混入する
ことにより、非発光・光吸収性の物質粒子相互間
の間隙が無機物質で埋められるため、光吸収膜の
平面度が良くなる。従つて、その上に形成される
光反射膜の平面度も良くなり、その反射率が上昇
する結果、カラー受像管の実効光出力を増大させ
ることができるという優れた効果を有する。 As explained above, according to the method for manufacturing a fluorescent surface of a color picture tube according to the present invention, an inorganic material having a particle size smaller than the particles of the non-light-emitting/light-absorbing material forming the light-absorbing film is added to the non-light-emitting/light-absorbing material that forms the light-absorbing film. By mixing the particles, the gaps between the non-light-emitting/light-absorbing material particles are filled with the inorganic material, thereby improving the flatness of the light-absorbing film. Therefore, the flatness of the light-reflecting film formed thereon is improved, and its reflectance is increased, which has the excellent effect of increasing the effective light output of the color picture tube.
図は、この発明によるカラー受像管けい光面製
造方法の一実施例の各工程中におけるフエースパ
ネルの一部を示す断面図である。
１……フエースパネル、４……光吸収膜、５…
…光反射膜、６ｇ，６ｂ，６ｒ……けい光膜。
The figures are cross-sectional views showing a part of the face panel during each step of an embodiment of the method for manufacturing the fluorescent surface of a color picture tube according to the present invention. 1...Face panel, 4...Light absorption film, 5...
...Light reflective film, 6g, 6b, 6r... Fluorescent film.
Claims (1)
を形成する工程と、該けい光体発光層を除いた前
記フエースパネル内面に非発光・光吸収性の物質
からなる光吸収層を形成する工程と、該光吸収層
上に光反射膜を形成する工程とを有するカラー受
像管けい光面製造方法において、前記光吸収層は
平均粒径0.3μmの黒鉛粒子に粒子径が略々0.05μm
の二酸化ケイ素が黒鉛に対して固形分として略々
20％混入していることを特徴とするカラー受像管
けい光面製造方法。1. A step of forming a phosphor-emitting layer of each color on the inner surface of the face panel, and a step of forming a light-absorbing layer made of a non-luminescent/light-absorbing substance on the inner surface of the face panel excluding the phosphor-emitting layer. , a color picture tube fluorescent surface manufacturing method comprising the step of forming a light reflecting film on the light absorbing layer, wherein the light absorbing layer comprises graphite particles having an average particle size of 0.3 μm and a particle size of approximately 0.05 μm.
of silicon dioxide as a solid content compared to graphite
A color picture tube fluorescent surface manufacturing method characterized by containing 20% of the color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP306081A JPS57118344A (en) | 1981-01-14 | 1981-01-14 | Manufacture of fluorescent surface for color image receiving tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP306081A JPS57118344A (en) | 1981-01-14 | 1981-01-14 | Manufacture of fluorescent surface for color image receiving tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57118344A JPS57118344A (en) | 1982-07-23 |
| JPH047055B2 true JPH047055B2 (en) | 1992-02-07 |
Family
ID=11546775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP306081A Granted JPS57118344A (en) | 1981-01-14 | 1981-01-14 | Manufacture of fluorescent surface for color image receiving tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57118344A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607037A (en) * | 1983-06-23 | 1985-01-14 | Mitsubishi Electric Corp | Production method of color crt phosphor screen |
| US4623820A (en) * | 1984-05-07 | 1986-11-18 | Rca Corporation | CRT with carbon-particle layer on a metallized viewing screen |
| JPS61253739A (en) * | 1985-04-30 | 1986-11-11 | Nec Kansai Ltd | Formation of carbon layer |
| JPH0773037B2 (en) * | 1989-08-12 | 1995-08-02 | 松下電工株式会社 | Structure of light emitting surface |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51139767A (en) * | 1975-05-28 | 1976-12-02 | Toshiba Corp | Method of forming a fluorescent screen for colour image receiving tube |
| JPS5236464A (en) * | 1975-09-18 | 1977-03-19 | Toshiba Corp | Method of producing fluorescent screen |
| JPS5310262A (en) * | 1976-07-16 | 1978-01-30 | Mitsubishi Electric Corp | Formation for black matrix tube screen |
| JPS5361488A (en) * | 1976-11-10 | 1978-06-01 | Fuji Machine Mfg | Packing material holder for packing machine |
| JPS5488762A (en) * | 1977-12-26 | 1979-07-14 | Toppan Printing Co Ltd | Method of fabricating crt fluorescent face |
| JPS55115242A (en) * | 1979-02-27 | 1980-09-05 | Mitsubishi Electric Corp | Projection type braun tube |
| JPS55136428A (en) * | 1979-04-09 | 1980-10-24 | Mitsubishi Electric Corp | Formation of light absorptive film |
-
1981
- 1981-01-14 JP JP306081A patent/JPS57118344A/en active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51139767A (en) * | 1975-05-28 | 1976-12-02 | Toshiba Corp | Method of forming a fluorescent screen for colour image receiving tube |
| JPS5236464A (en) * | 1975-09-18 | 1977-03-19 | Toshiba Corp | Method of producing fluorescent screen |
| JPS5310262A (en) * | 1976-07-16 | 1978-01-30 | Mitsubishi Electric Corp | Formation for black matrix tube screen |
| JPS5361488A (en) * | 1976-11-10 | 1978-06-01 | Fuji Machine Mfg | Packing material holder for packing machine |
| JPS5488762A (en) * | 1977-12-26 | 1979-07-14 | Toppan Printing Co Ltd | Method of fabricating crt fluorescent face |
| JPS55115242A (en) * | 1979-02-27 | 1980-09-05 | Mitsubishi Electric Corp | Projection type braun tube |
| JPS55136428A (en) * | 1979-04-09 | 1980-10-24 | Mitsubishi Electric Corp | Formation of light absorptive film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57118344A (en) | 1982-07-23 |
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