JPH04192239A - Heat absorbing film forming device for color image receiving tube - Google Patents
Heat absorbing film forming device for color image receiving tubeInfo
- Publication number
- JPH04192239A JPH04192239A JP32481290A JP32481290A JPH04192239A JP H04192239 A JPH04192239 A JP H04192239A JP 32481290 A JP32481290 A JP 32481290A JP 32481290 A JP32481290 A JP 32481290A JP H04192239 A JPH04192239 A JP H04192239A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- film
- absorbing film
- film forming
- heat absorbing
- 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
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000001771 vacuum deposition Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 5
- 230000008021 deposition Effects 0.000 abstract description 3
- 238000000638 solvent extraction Methods 0.000 abstract 4
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 14
- 238000007740 vapor deposition Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- RYZCLUQMCYZBJQ-UHFFFAOYSA-H lead(2+);dicarbonate;dihydroxide Chemical compound [OH-].[OH-].[Pb+2].[Pb+2].[Pb+2].[O-]C([O-])=O.[O-]C([O-])=O RYZCLUQMCYZBJQ-UHFFFAOYSA-H 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Landscapes
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、カラー受像管に関し、特に電子ビーム照射に
伴うシャドウマスクからの放射熱を相対するパネル側に
吸収させシャドウマスクのドーミング現像を軽減させる
熱吸収膜の形成装置に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a color picture tube, and in particular to a color picture tube that absorbs radiant heat from a shadow mask during electron beam irradiation to the opposing panel side to reduce doming development of the shadow mask. The present invention relates to an apparatus for forming a heat absorbing film.
［従来の技術］
従来のカラー受像管においては、パネル内面のブラック
マトリックス膜と呼ばれる黒鉛からなる黒色膜上の所定
位置に、緑、青、赤の各々の蛍光体の微小ドツトを形成
させた後、パネル内面を平滑にするために有機性エマル
ジョンからなるフィルミング膜を形成させる。[Prior Art] In conventional color picture tubes, minute dots of green, blue, and red phosphors are formed at predetermined positions on a black film made of graphite called a black matrix film on the inner surface of the panel. , a filming film made of an organic emulsion is formed to smooth the inner surface of the panel.
次に、１０−’〜１．０−’ Ｔ ｏ ｒ ｒ程度の圧
力下でアルミニウムの真空蒸着を行い、銀白色のアルミ
ニウム蒸着膜（メタルバック膜）を形成させた後、その
膜上に、更に１０−〜１０−“Ｔｏｒｒ程度の圧力下で
アルミニウムの蒸着を行うことで酸化した黒色のアルミ
ニウム蒸着膜を形成させ、シャドウマスクから放射され
る熱を吸収させる方法が提案されている（例えば、特公
昭６１−５３８１６号）。Next, vacuum evaporation of aluminum is performed under a pressure of about 10-' to 1.0-' Torr to form a silver-white aluminum evaporated film (metal back film), and then on the film, Furthermore, a method has been proposed in which aluminum is vapor-deposited under a pressure of about 10- to 10-Torr to form an oxidized black aluminum vapor-deposited film to absorb the heat radiated from the shadow mask (for example, Special Publication No. 61-53816).
〔発明が解決しようとする課題］
上述した従来の酸化した黒色アルミニウム膜は、メタル
バック膜である銀白色のアルミニウム形成装置と同一装
置で装置内圧力を変えるだけで生成可能であるため、簡
便であるが、その反面１０−’〜１０−”Ｔｏｒｒとい
う低真空下での蒸着であるため、装置内残留気体の影響
や、複数の加熱蒸発源からの蒸着物質分子の相互干渉に
よりパネル内面で黒色アルミニウム膜の濃淡が生じてカ
ラー受像管の輝度ムラを引き起こす要因となっていた。[Problems to be Solved by the Invention] The conventional oxidized black aluminum film described above can be produced simply by changing the internal pressure in the same equipment as the silver-white aluminum forming equipment for the metal back film. On the other hand, since the deposition is performed under a low vacuum of 10-' to 10-'' Torr, black color may appear on the inner surface of the panel due to the influence of residual gas in the device and mutual interference of the molecules of the vapor-deposited material from multiple heating evaporation sources. The shading of the aluminum film caused uneven brightness in color picture tubes.
本発明の目的は、カラー受像管の輝度ムラを引き起こす
要因を除去したカラー受像管熱吸収膜形成装置を提供す
ることにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a color picture tube heat-absorbing film forming apparatus that eliminates factors that cause uneven brightness of color picture tubes.
〔課題を解決するための手段］
前記目的を達成するため、本発明に係るカラー受像管熱
吸収膜形成装置においては、真空槽と、仕切板と、加熱
源とを有し、パネル内面に形成済のメタルバッグ膜上に
真空蒸着による熱吸収膜を形成するカラー受像管熱吸収
膜形成装置であって、真空槽は、パネル内面を真空雰囲
気に保持するものであり、
仕切板は、真空槽内を複数空間に仕切るものであり、
加熱源は、真空蒸着材を加熱・融解するもので、仕切板
で画成された真空槽の空間内に個別に設置されたもので
ある。[Means for Solving the Problems] In order to achieve the above object, the color picture tube heat absorption film forming apparatus according to the present invention includes a vacuum chamber, a partition plate, and a heating source, This is a color picture tube heat absorption film forming device that forms a heat absorption film by vacuum deposition on a pre-finished metal bag film.The vacuum chamber maintains the inner surface of the panel in a vacuum atmosphere. The interior is partitioned into multiple spaces, and the heating source heats and melts the vacuum deposition material, and is installed individually within the vacuum chamber space defined by the partition plate.
また、前記仕切板は、パネル内面と対向する縁部形状が
パネル内面と同じ曲率の形状に形成され、パネル内面と
の間に隙間が形成されたものである。Moreover, the edge of the partition plate facing the inner surface of the panel is formed to have the same curvature as the inner surface of the panel, and a gap is formed between the edge and the inner surface of the panel.
［作用］
複数の加熱蒸発源を個々に区切ることにより、ガラスパ
ネル面での加熱蒸発源相互間の干渉を防止する。[Operation] By separating a plurality of heating evaporation sources into individual parts, interference between the heating evaporation sources on the glass panel surface is prevented.
以下、本発明について図面を参照して説明する。 Hereinafter, the present invention will be explained with reference to the drawings.
（実施例１）
第１図は、本発明の実施例を示す断面図、第２図は、本
発明のカラー受像管熱吸収膜形成装置により製造したパ
ネルを示す断面図である。(Example 1) FIG. 1 is a cross-sectional view showing an example of the present invention, and FIG. 2 is a cross-sectional view showing a panel manufactured by the color picture tube heat-absorbing film forming apparatus of the present invention.
図において、真空槽１は、内部が図示しないポンプによ
り真空排気されるものであり、その開口上縁には、パネ
ル５の開口口縁５ａを支持するパネル台４が一体に設け
られている。In the figure, the inside of a vacuum chamber 1 is evacuated by a pump (not shown), and a panel stand 4 that supports an opening edge 5a of a panel 5 is integrally provided at the upper edge of its opening.
また、真空槽１は、その内部空間が仕切板３で左右に仕
切られており、その仕切られた空間内にフィラメントヒ
ータ２がそれぞれ設置されている。Further, the vacuum chamber 1 has an internal space partitioned into left and right sides by a partition plate 3, and filament heaters 2 are installed in each partitioned space.
フィラメントヒータ２は、アルミニウムがシリンダー形
状で供給され、任意の電圧が印加されて、熱吸収膜とな
るアルミニウムの蒸着を行うものである。The filament heater 2 is supplied with aluminum in the form of a cylinder, and a given voltage is applied to vapor-deposit aluminum to form a heat-absorbing film.
また、仕切板３の上縁３ａの形状は、パネル５の内面曲
率と同じ曲率の形状に形成され、パネル５の内面と仕切
板３の上縁３ａとの間に適当な隙間Ｓが設けられている
。Further, the shape of the upper edge 3a of the partition plate 3 is formed to have the same curvature as the inner surface curvature of the panel 5, and an appropriate gap S is provided between the inner surface of the panel 5 and the upper edge 3a of the partition plate 3. ing.
第２図に示すように、パネル５は、その内面にブラック
マトリックス膜１２に形成され、プラックマトリックス
膜１２上に蛍光体層１３が形成され、蛍光体層１３上に
メタルバッグ膜１５が形成されている状態で、熱吸収膜
１６が形成される。As shown in FIG. 2, the panel 5 has a black matrix film 12 formed on its inner surface, a phosphor layer 13 formed on the plaque matrix film 12, and a metal bag film 15 formed on the phosphor layer 13. In this state, the heat absorbing film 16 is formed.
実施例において、熱吸収膜用のアルミニウムをフィラメ
ントヒータ２の内部に入れ、メタルバック膜形成済のパ
ネル５をパネル台４に載せる。In the example, aluminum for a heat absorption film is placed inside the filament heater 2, and the panel 5 on which the metal back film has been formed is placed on the panel stand 4.
パネル５を載せた後、真空槽１内圧が１０””’〜１０
−”Ｔｏｒｒになったら、フィラメントヒータ２に通電
し、熱吸収膜となるアルミニウムの蒸着を行う。すなわ
ち、２０サイズのパネル５について実例を上げると、フ
ィラメントヒータ１個につき１５０■程度のアルミニウ
ムをシリンダー形状で供給する。After placing the panel 5, the internal pressure of the vacuum chamber 1 is 10""'~10
-"Torr, the filament heater 2 is energized and aluminum is vapor-deposited to become the heat absorbing film. To give an example of a panel 5 of size 20, approximately 150cm of aluminum is deposited in the cylinder for each filament heater. Supply in shape.
そして、メタルバック膜形成済のパネル５をパネル台４
に載せ、仕切板３の上面曲率とパネル内面曲率を等しく
して適当な間隔を保って、真空槽ｌ内を１０−’〜１０
−”Ｔ ｏ ｒ ｒまで排気した後、フィラメントヒー
タ２に１００Ａ程度の電流を流し、熱吸収膜１６を形成
する。Then, the panel 5 on which the metal back film has been formed is placed on the panel stand 4.
The inside of the vacuum chamber 1 is 10-' to 10-10 cm, keeping the curvature of the upper surface of the partition plate 3 equal to the curvature of the inner surface of the panel and maintaining an appropriate distance.
After evacuation to -''T or r, a current of about 100 A is applied to the filament heater 2 to form the heat absorbing film 16.
蒸着完了後、大気圧に戻してフィルミング膜等の有機物
を分解する焼成工程以後の工程へ送る。After the vapor deposition is completed, the pressure is returned to atmospheric pressure and the film is sent to the firing step and subsequent steps to decompose organic matter such as the filming film.
（実施例２）
本実施例では、熱吸収膜となるアルミニウムを蒸着する
際、パネルサイズに応じてフィラメントヒータ２を複数
使用しているので、どれか１個のフィラメントヒータに
電圧を印加してフィラメントヒータ１個づつのアルミニ
ウムを蒸着させるものである。この実施例ではフィラメ
ントヒータ１個がガラスパネル内面の特定箇所の蒸着を
受は持っており、仕切板３によってフィラメントヒータ
間の相互干渉が防止されている。例えば、フィラメント
ヒータ２の断線等により特定箇所のみ蒸着されなかった
ガラスパネルに対し、もう−度その部分だけを蒸着する
ことが可能となる。従来ならば、特定箇所のみの蒸着を
行うと、蒸着膜の箇所に再度蒸着される重複部分が生じ
て蒸着膜厚の不均一を生じ、輝度ムラ等の原因となって
いたが、これを防止できるとともに、製品の歩留りを向
上させることができるという利点がある。(Example 2) In this example, when depositing aluminum as a heat absorbing film, multiple filament heaters 2 are used depending on the panel size, so voltage cannot be applied to any one of the filament heaters. Aluminum is deposited on each filament heater. In this embodiment, one filament heater has a receiver for depositing vapor at a specific location on the inner surface of the glass panel, and the partition plate 3 prevents mutual interference between the filament heaters. For example, for a glass panel in which vapor deposition was not performed on a specific portion due to a disconnection of the filament heater 2, etc., it becomes possible to vapor deposit only that portion again. Previously, when vapor deposition was performed only on specific areas, overlapping areas were created where the vapor deposited film was deposited again, resulting in non-uniformity in the thickness of the vapor deposited film and causing uneven brightness, etc., but this can be prevented. It has the advantage of being able to improve product yield.
以上説明したように本発明によれば、蒸着により形成さ
れる熱吸収膜の複数の蒸着源が互いに干渉することがな
く、輝度ムラやドーミング現像による色ズレの少ないカ
ラー受像管を製造することができる。As explained above, according to the present invention, the plurality of vapor deposition sources for the heat absorbing film formed by vapor deposition do not interfere with each other, and it is possible to manufacture a color picture tube with less uneven brightness and color shift due to doming development. can.
第１図は、本発明の実施例を示す断面図、第２図は、本
発明装置により製造したパネルを示す断面図である。
１・・・真空槽 ２・・・フィラメントヒー
タ３・・・仕切板 ４・・・パネル台５・・
・パネルFIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a panel manufactured by the apparatus of the present invention. 1... Vacuum chamber 2... Filament heater 3... Partition plate 4... Panel stand 5...
·panel
Claims (2)
面に形成済のメタルバック膜上に真空蒸着による熱吸収
膜を形成するカラー受像管熱吸収膜形成装置であって、 真空槽は、パネル内面を真空雰囲気に保持するものであ
り、 仕切板は、真空槽内を複数空間に仕切るものであり、 加熱源は、真空蒸着材を加熱・融解するもので、仕切板
で画成された真空槽の空間内に個別に設置されたもので
あることを特徴とするカラー受像管熱吸収膜形成装置。(1) A color picture tube heat-absorbing film forming apparatus, which has a vacuum chamber, a partition plate, and a heating source, and forms a heat-absorbing film by vacuum deposition on a metal back film already formed on the inner surface of the panel, The vacuum chamber maintains the inner surface of the panel in a vacuum atmosphere, and the partition plate divides the inside of the vacuum chamber into multiple spaces.The heating source heats and melts the vacuum deposition material, and the partition plate 1. A color picture tube heat absorption film forming device, characterized in that the device is installed individually within a defined vacuum chamber space.
パネル内面と同じ曲率の形状に形成され、パネル内面と
の間に隙間が形成されたものであることを特徴とする請
求項第（１）項記載のカラー受像管熱吸収膜形成装置。(2) The partition plate is characterized in that an edge facing the inner surface of the panel is formed to have the same curvature as the inner surface of the panel, and a gap is formed between the edge and the inner surface of the panel. The color picture tube heat-absorbing film forming apparatus according to item (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32481290A JPH04192239A (en) | 1990-11-27 | 1990-11-27 | Heat absorbing film forming device for color image receiving tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32481290A JPH04192239A (en) | 1990-11-27 | 1990-11-27 | Heat absorbing film forming device for color image receiving tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04192239A true JPH04192239A (en) | 1992-07-10 |
Family
ID=18169953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32481290A Pending JPH04192239A (en) | 1990-11-27 | 1990-11-27 | Heat absorbing film forming device for color image receiving tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04192239A (en) |
-
1990
- 1990-11-27 JP JP32481290A patent/JPH04192239A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7045948B2 (en) | Field emission device with mesh grid | |
| US2871087A (en) | Method of assembling a color television tube | |
| US3621318A (en) | Color television picture tube with metallic film coating on funnel portion | |
| JPH04192239A (en) | Heat absorbing film forming device for color image receiving tube | |
| JPS601735B2 (en) | cathode ray tube | |
| US20070080637A1 (en) | Image display apparatus and method of manufacturing the image display apparatus | |
| CN1151528C (en) | Cathode-ray tube and its producing method | |
| US3764367A (en) | Television picture tube having an electron scattering prevention film | |
| JPS6153814B2 (en) | ||
| JP2865902B2 (en) | Method for manufacturing color cathode ray tube to minimize thermal deformation of shadow mask | |
| US3819409A (en) | Method of manufacturing a display screen | |
| US4834021A (en) | Apparatus for controlling the distribution of evaporated material onto a surface | |
| US20010021410A1 (en) | Method of producing cathode ray tube and method of forming films | |
| JPH04259731A (en) | Manufacture of color picture tube | |
| JPH113654A (en) | Manufacture of color cathode-ray tube | |
| JPH04101329A (en) | Color image receiving tube and its manufacture | |
| JPH0451428A (en) | Color image receiving tube and manufacture thereof | |
| US3819408A (en) | Method for manufacturing vapor deposited electrode | |
| US3199939A (en) | Phosphor deposition | |
| JPH0246621A (en) | Manufacture of color cathode-ray tube | |
| JPS6153816B2 (en) | ||
| KR100255673B1 (en) | Method of forming a metal layer and crt with a metal layer formed thereby | |
| JPH08190862A (en) | Method for forming heat absorbing film of color cathode-ray tube, and device for forming the heat absorbing film | |
| CA1061193A (en) | Cathode ray tube | |
| JP2002134044A (en) | Cathode ray tube, its manufacturing method and its manufacturing device |