JPH0765718A - Manufacture of crt - Google Patents

Manufacture of crt

Info

Publication number
JPH0765718A
JPH0765718A JP20948293A JP20948293A JPH0765718A JP H0765718 A JPH0765718 A JP H0765718A JP 20948293 A JP20948293 A JP 20948293A JP 20948293 A JP20948293 A JP 20948293A JP H0765718 A JPH0765718 A JP H0765718A
Authority
JP
Japan
Prior art keywords
panel
ray tube
cathode ray
film
chemical solution
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
Application number
JP20948293A
Other languages
Japanese (ja)
Inventor
Yasuo Wakamatsu
保夫 若松
Hitoshi Takeda
均 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP20948293A priority Critical patent/JPH0765718A/en
Publication of JPH0765718A publication Critical patent/JPH0765718A/en
Pending legal-status Critical Current

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  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

PURPOSE:To form a surface film in uniform film thickness on the whole surface of the panel outside face of a CRT. CONSTITUTION:Chemical solution for forming surface film is applied to a panel outer face 12 of a CRT 11. By rotating the CRT 11 excess of the chemical solution is dispersed away from the panel outside face 12. During rotation of the CRT 11, gas is jetted out from nozzles 12 onto predetermined areas of the panel outside face 12. Accordingly, diffusion and dispersion conditions for chemical solution applied on the panel outside face 12 are varied, so that a surface film is formed in uniform thickness on the whole surface of the panel outside face 12.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、ブラウン管のパネル外
面に光反射防止膜や導電膜等の表面膜を形成するブラウ
ン管の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a cathode ray tube in which a surface film such as an antireflection film or a conductive film is formed on the outer surface of a panel of the cathode ray tube.

【０００２】[0002]

【従来の技術】近年、ブラウン管のパネル外面に光反射
防止膜や導電膜等の表面膜を形成することが一般化しつ
つある。2. Description of the Related Art In recent years, it has become common to form a surface film such as a light antireflection film or a conductive film on the outer surface of a panel of a cathode ray tube.

【０００３】すなわち、光反射防止膜は、ブラウン管外
部の光をパネル面で拡散させることが主目的で、これに
より、パネル面に映し出される映像と、ブラウン管外部
の物体の反射像が重複して、映像が見づらくなることを
緩和する。また、導電膜は、ブラウン管外部の静電気の
帯電をなくすことにより、塵埃等の障害物がパネル面に
付着し、映像を劣化させることを防止する。That is, the main purpose of the light antireflection film is to diffuse the light outside the cathode ray tube on the panel surface, whereby the image projected on the panel surface and the reflection image of the object outside the cathode ray tube overlap. It alleviates the difficulty of viewing images. Further, the conductive film prevents electrostatic charges outside the cathode-ray tube from being charged, thereby preventing obstacles such as dust from adhering to the panel surface and deteriorating the image.

【０００４】これらの表面膜の形成は、薬液を粒子状に
して気体とともにパネル外面に噴射する方法や、薬液を
少し余分にパネル外面に塗布した後、ブラウン管を高速
回転させ、遠心力によって余剰液をパネル外面より飛散
させる方法がある。The formation of these surface films is carried out by a method in which a liquid chemical is made into particles and is jetted together with a gas onto the outer surface of the panel, or after a small amount of the liquid chemical is applied to the outer surface of the panel, the cathode ray tube is rotated at a high speed and the excess liquid is centrifugally applied. There is a method of scattering from the outer surface of the panel.

【０００５】そして、ブラウン管を高速回転させて余剰
液を飛散させることにより表面膜を形成する方法、いわ
ゆるスピンコート法を、図４を参照して説明する。ブラ
ウン管１を回転板２に設けられた把持腕３により支持
し、パネル外面1aの上方に設けられた薬液ノズル４から
薬液５を塗布し、その後、回転板２を図示しない回転機
構により高速回転させることにより、パネル外面1aに塗
布された薬液５をパネル外面1aの全域に拡散させ、余剰
となった薬液５をパネル外面1aから飛散させる。Then, a method for forming a surface film by rotating a cathode ray tube at high speed to scatter excess liquid, a so-called spin coating method will be described with reference to FIG. The cathode ray tube 1 is supported by the gripping arms 3 provided on the rotary plate 2, the chemical liquid 5 is applied from a chemical liquid nozzle 4 provided above the panel outer surface 1a, and then the rotary plate 2 is rotated at a high speed by a rotation mechanism (not shown). As a result, the chemical solution 5 applied to the panel outer surface 1a is diffused over the entire panel outer surface 1a, and the surplus chemical solution 5 is scattered from the panel outer surface 1a.

【０００６】この方法によると、矩形のパネル外面1aの
四隅に薬液５が集中することになり、図５に示すよう
に、パネル外面1aの四隅に、薬液５の膜厚が異なった部
分、すなわち膜厚むら部5aが形成されやすい。この膜厚
むら部5aは、ブラウン管１が高速回転すると、四隅にか
なりの風圧を受け、この風圧が遠心力に対し垂直方向に
働くため、遠心力でパネル外面1aの四隅に拡散された薬
液５がこの風圧により均一に拡散することができず、こ
の状態で乾燥してしまって膜厚が厚くなることにより形
成される。According to this method, the chemicals 5 are concentrated at the four corners of the rectangular panel outer surface 1a, and as shown in FIG. 5, the chemicals 5 have different thicknesses at the four corners of the panel outer surface 1a, that is, The uneven film thickness portion 5a is easily formed. When the cathode-ray tube 1 rotates at high speed, the uneven film thickness portion 5a receives a considerable amount of wind pressure at four corners, and this wind pressure acts in a direction perpendicular to the centrifugal force. Therefore, the chemical liquid 5 diffused at the four corners of the panel outer surface 1a by the centrifugal force. However, it cannot be uniformly diffused by this wind pressure, and is dried in this state to form a thick film.

【０００７】また、膜厚むら部5aの発生を抑えるために
は、薬液５の粘度や、パネル外面1aの温度等を制御管理
する必要があるが、わずかな条件の変動で膜厚むら部5a
が発生しやすい。Further, in order to suppress the occurrence of the uneven film thickness portion 5a, it is necessary to control and manage the viscosity of the chemical solution 5, the temperature of the panel outer surface 1a, etc.
Is likely to occur.

【０００８】[0008]

【発明が解決しようとする課題】上述のように、従来の
方法によれば、パネル外面の四隅部に膜厚の不均一部分
が発生しやすく、表面膜の品質が低下する問題が発生し
ている。As described above, according to the conventional method, the unevenness of the film thickness is likely to occur at the four corners of the outer surface of the panel, and the quality of the surface film is deteriorated. There is.

【０００９】本発明は、このような点に鑑みなされたも
ので、パネル外面の全面に均一な膜厚の表面膜を形成で
きるブラウン管の製造方法を提供することを目的とす
る。The present invention has been made in view of the above circumstances, and an object thereof is to provide a method of manufacturing a cathode ray tube capable of forming a surface film having a uniform film thickness on the entire outer surface of a panel.

【００１０】[0010]

【課題を解決するための手段】請求項１記載の発明は、
ブラウン管のパネル外面に表面膜形成用の薬液を塗布
し、ブラウン管を回転させて薬液の余剰分をパネル外面
から飛散させるとともに、ノズルから噴出させる気体を
パネル外面の任意の部分に吹き付け、パネル外面に表面
膜を形成するものである。The invention according to claim 1 is
A chemical solution for forming a surface film is applied to the outer surface of the panel of the cathode ray tube, and the excess of the chemical solution is scattered from the outer surface of the panel by rotating the cathode ray tube, and the gas ejected from the nozzle is sprayed on any part of the outer surface of the panel to It forms a surface film.

【００１１】請求項２記載の発明は、ブラウン管のパネ
ル外面に表面膜形成用の薬液を塗布し、ブラウン管を回
転させて前記薬液の余剰分をパネル外面から飛散させる
とともに、ブラウン管と一体的に回転する翼体で気流を
発生させて気体をパネル外面の任意の部分に吹き付け、
ブラウン管のパネル外面に表面膜を形成するものであ
る。According to a second aspect of the present invention, a chemical solution for forming a surface film is applied to the outer surface of the panel of the cathode ray tube, and the cathode ray tube is rotated to scatter the excess amount of the chemical solution from the outer surface of the panel, and is rotated integrally with the cathode ray tube. The airfoil is generated by the wing body to blow the gas to any part of the outer surface of the panel,
A surface film is formed on the outer surface of the panel of the cathode ray tube.

【００１２】[0012]

【作用】請求項１記載の発明では、薬液をパネル外面に
塗布したブラウン管を回転させているとき、パネル外面
の例えば薬液の膜厚が厚くなる任意の部分に、ノズルか
ら気体を吹き付けることにより、薬液を拡散させて膜厚
を薄くし、パネル外面の全面に均一な膜厚の表面膜を形
成する。According to the first aspect of the invention, when the cathode ray tube coated with the chemical liquid on the outer surface of the panel is rotated, the gas is blown from the nozzle to any portion of the outer surface of the panel where the film thickness of the chemical liquid becomes thicker, for example. The chemical solution is diffused to reduce the film thickness, and a surface film having a uniform film thickness is formed on the entire outer surface of the panel.

【００１３】請求項２記載の発明では、薬液をパネル外
面に塗布したブラウン管を回転させているとき、ブラウ
ン管と一体的に回転する翼体で気流を発生させて気体
を、パネル外面の例えば薬液の膜厚が厚くなる任意の部
分に吹き付けることにより、薬液を拡散させて膜厚を薄
くし、パネル外面の全面に均一な膜厚の表面膜を形成す
る。According to the second aspect of the present invention, when the cathode ray tube having the outer surface of the panel coated with the chemical liquid is rotated, the airflow is generated by the blade body rotating integrally with the cathode ray tube to generate the gas, for example, the chemical liquid on the outer surface of the panel. By spraying on an arbitrary portion where the film thickness increases, the chemical liquid is diffused to reduce the film thickness, and a surface film having a uniform film thickness is formed on the entire outer surface of the panel.

【００１４】[0014]

【実施例】以下、本発明のブラウン管の製造方法の一実
施例の構成を図１を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the method for manufacturing a cathode ray tube of the present invention will be described below with reference to FIG.

【００１５】図において、11はブラウン管で、このブラ
ウン管11は、矩形状のパネル外面12を有し、このパネル
外面12に光反射防止膜や導電膜等の表面膜が形成され
る。In the figure, 11 is a cathode ray tube, and this cathode ray tube 11 has a rectangular panel outer surface 12, and a surface film such as a light reflection preventing film or a conductive film is formed on the panel outer surface 12.

【００１６】21は表面膜形成装置で、この表面膜形成装
置21は、いわゆるスピンコート法を採った装置であり、
ベース22に中空状の回転軸23が垂直状態で回転自在に支
持され、この回転軸23の上端に回転板24が取り付けら
れ、回転板24の上面外縁部側にブラウン管11をパネル外
面12が上方に向く状態に着脱自在に支持する一対の略Ｔ
字状の把持腕25が取り付けられている。ベース22の下面
にはモータ26が取り付けられ、ベース22の上側において
モータ26で回転駆動されるギヤ27と回転軸23に固着され
たギヤ28とが噛合されている。Reference numeral 21 denotes a surface film forming apparatus. This surface film forming apparatus 21 is an apparatus adopting a so-called spin coating method,
A hollow rotary shaft 23 is rotatably supported in a vertical state on a base 22, a rotary plate 24 is attached to an upper end of the rotary shaft 23, and a cathode ray tube 11 and a panel outer surface 12 are provided on an outer peripheral side of an upper surface of the rotary plate 24. A pair of approximately T that are detachably supported in a state facing
A character-shaped gripping arm 25 is attached. A motor 26 is attached to the lower surface of the base 22, and a gear 27 rotationally driven by the motor 26 and a gear 28 fixed to the rotary shaft 23 are meshed with each other on the upper side of the base 22.

【００１７】また、表面膜形成装置21はノズル手段31を
備え、このノズル手段31は、回転板24の上面外縁部に金
属製の垂直パイプ32が立設され、この垂直パイプ32の上
端に一対の把持腕25で支持されるブラウン管11のパネル
外面12の外形状に合わせて略コ字状の水平パイプ33がパ
イプ内流通状態で連結され、この水平パイプ33にパネル
外面12の四隅部に対応してノズル34が取り付けられてい
る。回転軸23の下端には図示しない圧縮機からチューブ
35を通じて高圧気体が導かれるセンターバルブ36が取り
付けられ、このセンターバルブ36には回転軸23の内部お
よびチューブ37を通じて垂直パイプ32に流通接続されて
いる。そして、センターバルブ36の切り換えにより、各
ノズル34から高圧気体が選択的に噴出する。Further, the surface film forming apparatus 21 is provided with a nozzle means 31. The nozzle means 31 is provided with a vertical metal pipe 32 standing on the outer peripheral edge of the upper surface of the rotary plate 24, and a pair of vertical pipes 32 are provided at the upper end of the vertical pipe 32. An approximately U-shaped horizontal pipe 33 is connected to the outer surface 12 of the cathode ray tube 11 supported by the gripping arms 25 in a pipe-like distribution state, and the horizontal pipes 33 correspond to the four corners of the outer surface 12 of the panel. Then, the nozzle 34 is attached. At the lower end of the rotary shaft 23, a tube from a compressor (not shown)
A center valve 36, through which high-pressure gas is guided through 35, is attached, and the center valve 36 is connected to the inside of the rotary shaft 23 and the vertical pipe 32 through a tube 37. Then, by switching the center valve 36, the high pressure gas is selectively ejected from each nozzle 34.

【００１８】また、図示しないが、一対の把持腕25で支
持されるブラウン管11のパネル外面12の上方位置には、
表面膜形成用の薬液を滴下塗布する薬液ノズルが配設さ
れている。Although not shown, at a position above the panel outer surface 12 of the cathode ray tube 11 supported by the pair of gripping arms 25,
A chemical solution nozzle for dropping and applying a chemical solution for forming a surface film is provided.

【００１９】次に、本実施例の作用を説明する。Next, the operation of this embodiment will be described.

【００２０】ブラウン管11をパネル外面12が上方に向く
状態に一対の把持腕25間にセットする。The cathode ray tube 11 is set between the pair of gripping arms 25 with the panel outer surface 12 facing upward.

【００２１】薬液ノズルから薬液をパネル外面12の略中
央部に滴下塗布した後、モータ26を駆動して、回転軸23
および回転板24等と共にブラウン管11を高速回転させ
る。このブラウン管11の高速回転による遠心力により、
パネル外面12の略中央部に滴下塗布された薬液がパネル
外面12の全面に拡散し、薬液の余剰分はパネル外面12の
縁部から外方へ飛散する。After the chemical solution is dropped and applied from the chemical solution nozzle to the substantially central portion of the outer surface 12 of the panel, the motor 26 is driven to rotate the rotary shaft 23.
And the cathode ray tube 11 is rotated at high speed together with the rotating plate 24 and the like. Due to the centrifugal force due to the high speed rotation of this cathode ray tube 11,
The chemical liquid dropped and applied to the substantially central portion of the panel outer surface 12 diffuses over the entire surface of the panel outer surface 12, and the excess amount of the chemical liquid is scattered outward from the edge portion of the panel outer surface 12.

【００２２】このブラウン管11を回転させている過程に
おいて、センターバルブ36を切り換え、各ノズル34から
高圧気体を噴出させて、その気体をパネル外面12の各隅
部の領域に吹き付ける。In the process of rotating the cathode ray tube 11, the center valve 36 is switched, high pressure gas is ejected from each nozzle 34, and the gas is blown to each corner area of the panel outer surface 12.

【００２３】このとき、パネル外面12の四隅部には薬液
が集中して膜厚が厚くなるとともに、パネル外面12の四
隅部の周側面側に飛散しきれない薬液が残ることが多い
が、高圧気体を吹き付けることにより、パネル外面12の
四隅部に集中する薬液を拡散させて膜厚を薄くできると
ともに、パネル外面12の四隅部の周側面側に局部的に溜
まって残るような薬液の余剰分をパネル外面12から飛散
できる。したがって、パネル外面12の表面膜の膜厚を均
一にできるとともに、パネル外面12の四隅部の周側面側
に局部的に溜まって残った薬液の余剰分がパネル外面12
側に流れ戻って水滴状のむら部を発生させるようなこと
を防止できる。At this time, the chemical solution concentrates on the four corners of the panel outer surface 12 to increase the film thickness, and the chemical solution that cannot be completely scattered remains on the peripheral side surfaces of the four corners of the panel outer surface 12, but the high pressure is high. By blowing gas, the chemical liquid concentrated in the four corners of the panel outer surface 12 can be diffused to reduce the film thickness, and the surplus amount of the chemical liquid locally accumulated on the peripheral side surfaces of the four corners of the panel outer surface 12 remains. Can be scattered from the outer surface 12 of the panel. Therefore, the film thickness of the surface film of the panel outer surface 12 can be made uniform, and the surplus amount of the chemical solution locally accumulated on the peripheral side surfaces of the four corners of the panel outer surface 12 is not enough.
It is possible to prevent the water from flowing back to the side and generating a water droplet-like uneven portion.

【００２４】次に、本発明のブラウン管の製造方法の他
の実施例を図２および図３を参照して説明する。Next, another embodiment of the method for manufacturing a cathode ray tube according to the present invention will be described with reference to FIGS.

【００２５】ブラウン管11は、周囲に防爆バンド13が装
着され、この防爆バンド13にパネル外面12の四隅部に対
応してブラウン管取付用のラグ14が溶接固定されてい
る。An explosion-proof band 13 is attached around the cathode ray tube 11, and lugs 14 for attaching the cathode-ray tube are welded and fixed to the explosion-proof band 13 in correspondence with the four corners of the panel outer surface 12.

【００２６】表面膜形成装置21は、ベース41に円形の開
口部42が形成され、この開口部42の周縁部上面に断面略
Ｖ字状の溝部を周面に有する複数の回転ローラ43が回転
自在に軸支され、この複数の回転ローラ43の間に断面略
Ｖ字状の突部を周面に有する回転板44が回転自在に支持
されている。ベース41の下面には１つの回転ローラ43に
連結して回転板44を回転させるモータ45が取り付けられ
ている。In the surface film forming apparatus 21, a circular opening 42 is formed in a base 41, and a plurality of rotating rollers 43 having a groove having a substantially V-shaped cross section on the peripheral surface of the opening 42 are rotated. A rotary plate 44 which is rotatably supported and has a protrusion having a substantially V-shaped cross section on its peripheral surface is rotatably supported between the plurality of rotary rollers 43. A motor 45, which is connected to one rotating roller 43 and rotates a rotating plate 44, is attached to the lower surface of the base 41.

【００２７】回転板44は、中央にブラウン管11を嵌合可
能とする矩形状の嵌合孔46が開口形成され、この嵌合孔
46の四隅部の縁部下面に対応して翼体47が取り付けられ
ている。この翼体47は、板部材からなり、回転板44の回
転方向の上流側（回転方向に対して後側）が嵌合孔46の
隅部に近接するとともに下流側（回転方向に対して前
側）が嵌合孔46から離れるように、回転板44の回転方向
に対して傾斜状に取り付けられている。The rotating plate 44 has a rectangular fitting hole 46 formed in the center thereof for allowing the Braun tube 11 to be fitted therein.
Wing bodies 47 are attached to the lower surfaces of the four corners of the four corners. The wing body 47 is made of a plate member, and the upstream side (rear side with respect to the rotation direction) of the rotating plate 44 is close to the corner of the fitting hole 46 and the downstream side (front side with respect to the rotation direction). ) Is attached so as to be away from the fitting hole 46 in an inclined shape with respect to the rotation direction of the rotary plate 44.

【００２８】また、回転板44の嵌合孔46の下方には薬液
をパネル外面12の略中央部に吹き付け塗布する薬液ノズ
ル51が配置されている。Further, below the fitting hole 46 of the rotary plate 44, a chemical solution nozzle 51 for spraying and applying the chemical solution to the substantially central portion of the panel outer surface 12 is arranged.

【００２９】次に、本実施例の作用を説明する。Next, the operation of this embodiment will be described.

【００３０】ブラウン管11をパネル外面12が下方に向く
状態で、ブラウン管11を回転板44の嵌合孔46に上方から
挿入するとともに、各ラグ14を回転板44の上面に載せて
セットする。With the outer surface 12 of the panel facing downward, the CRT 11 is inserted into the fitting hole 46 of the rotary plate 44 from above, and each lug 14 is set on the upper surface of the rotary plate 44.

【００３１】薬液ノズル51から薬液をパネル外面12の略
中央部に吹き付け塗布した後、モータ45を駆動して、回
転板44と共にブラウン管11を高速回転させる。このブラ
ウン管11の高速回転による遠心力により、パネル外面12
の略中央部に吹き付け塗布された薬液がパネル外面12の
全面に拡散し、薬液の余剰分はパネル外面12の縁部から
外方へ飛散する。After the chemical solution is sprayed from the chemical solution nozzle 51 onto the substantially central portion of the outer surface 12 of the panel, the motor 45 is driven to rotate the cathode ray tube 11 together with the rotary plate 44 at a high speed. The outer surface of the panel 12 is
The chemical liquid sprayed and applied to the substantially central portion of the above diffuses over the entire outer surface 12 of the panel, and the excess amount of the chemical liquid is scattered outward from the edge portion of the outer surface 12 of the panel.

【００３２】このとき、回転板44と一体的に回転する各
翼体47により、図３に矢印で示すように、気流を発生さ
せて、気体をパネル外面12の各隅部の領域に吹き付け
る。At this time, as shown by the arrows in FIG. 3, airflow is generated by the blades 47 that rotate integrally with the rotary plate 44, and the gas is blown to the corner areas of the panel outer surface 12.

【００３３】そのため、パネル外面12の四隅部には薬液
が集中して膜厚が厚くなるとともに、パネル外面12の四
隅部の周側面側に飛散しきれない薬液が残ることが多い
が、翼体47で気体を吹き付けることにより、パネル外面
12の四隅部に集中する薬液を拡散させて膜厚を薄くでき
るとともに、パネル外面12の四隅部の周側面側に局部的
に溜まって残るような薬液の余剰分をパネル外面12から
飛散できる。したがって、パネル外面12の表面膜の膜厚
を均一にできるとともに、パネル外面12の四隅部の周側
面側に局部的に溜まって残った薬液の余剰分がパネル外
面12側に流れ戻って水滴状のむら部を発生させるような
ことを防止できる。Therefore, while the chemical solution concentrates on the four corners of the panel outer surface 12 to increase the film thickness, the chemical solution that cannot be scattered often remains on the peripheral side surfaces of the four corners of the panel outer surface 12. By blowing gas at 47, the outer surface of the panel
It is possible to reduce the film thickness by diffusing the chemical solution concentrated in the four corners of the twelve corners, and to scatter from the panel outer surface 12 an excessive amount of the chemical solution locally accumulated and left on the peripheral side surfaces of the four corners of the panel outer surface 12. Therefore, the film thickness of the surface film of the panel outer surface 12 can be made uniform, and the surplus of the chemical liquid locally accumulated on the peripheral side surfaces of the four corners of the panel outer surface 12 flows back to the panel outer surface 12 side and returns to the water droplet shape. It is possible to prevent the occurrence of uneven portions.

【００３４】以上のように、気体をパネル外面12の任意
の部分に吹き付けることにより、パネル外面12に塗布さ
れた薬液の拡散や飛散条件を変化させることができ、結
果としてパネル外面12の全面に均一な膜厚の表面膜を形
成できる。As described above, by spraying the gas on an arbitrary portion of the panel outer surface 12, it is possible to change the diffusion and scattering conditions of the chemical liquid applied to the panel outer surface 12, and as a result, the entire surface of the panel outer surface 12 is changed. A surface film having a uniform film thickness can be formed.

【００３５】なお、気体を吹き付けるパネル外面12の任
意の部分としては、薬液の膜厚が厚くなりやすいパネル
外面12の四隅部、パネル外面12の周縁部、パネル外面12
の回転中心部等がある。As an arbitrary portion of the panel outer surface 12 onto which gas is blown, the four corners of the panel outer surface 12 where the film thickness of the chemical solution tends to be thick, the peripheral edge of the panel outer surface 12, and the panel outer surface 12 are used.
There is a center of rotation, etc.

【００３６】[0036]

【発明の効果】請求項１記載の発明によれば、薬液をパ
ネル外面に塗布したブラウン管を回転させているとき、
ノズルから噴出させる気体をパネル外面の任意の部分に
吹き付けることにより、パネル外面に塗布された薬液の
拡散や飛散条件を変化させることができ、パネル外面の
全面に均一な膜厚の表面膜を形成できる。According to the invention described in claim 1, when the cathode ray tube having the chemical solution applied to the outer surface of the panel is rotated,
By spraying the gas ejected from the nozzle to any part of the outer surface of the panel, the diffusion and scattering conditions of the chemical liquid applied to the outer surface of the panel can be changed, and a surface film with a uniform thickness is formed on the entire outer surface of the panel. it can.

【００３７】請求項２記載の発明によれば、薬液をパネ
ル外面に塗布してブラウン管を回転させているとき、ブ
ラウン管と一体的に回転する翼体で気流を発生させて気
体を、パネル外面の例えば薬液の膜厚が厚くなる任意の
部分に吹き付けることにより、パネル外面に塗布された
薬液の拡散や飛散条件を変化させることができ、パネル
外面の全面に均一な膜厚の表面膜を形成できる。According to the second aspect of the present invention, when the cathode ray tube is rotated by applying the chemical liquid to the panel outer surface, the airflow is generated by the blade body that rotates integrally with the cathode ray tube to generate the gas on the panel outer surface. For example, by spraying on an arbitrary portion where the film thickness of the chemical solution becomes thicker, the diffusion and scattering conditions of the chemical solution applied to the outer surface of the panel can be changed, and a surface film having a uniform film thickness can be formed on the entire outer surface of the panel. .

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明のブラウン管の製造方法の一実施例を示
す斜視図である。FIG. 1 is a perspective view showing an embodiment of a method for manufacturing a cathode ray tube according to the present invention.

【図２】本発明のブラウン管の製造方法の他の実施例を
示す断面図である。FIG. 2 is a sectional view showing another embodiment of the method for manufacturing a cathode ray tube of the present invention.

【図３】同上実施例の底面図である。FIG. 3 is a bottom view of the embodiment.

【図４】従来のブラウン管の製造方法を示す側面図であ
る。FIG. 4 is a side view showing a conventional method for manufacturing a cathode ray tube.

【図５】従来の製造方法で製造されたパネル外面の表面
膜のむらを説明する説明図である。FIG. 5 is an explanatory diagram illustrating unevenness of a surface film on the outer surface of a panel manufactured by a conventional manufacturing method.

【符号の説明】[Explanation of symbols]

11 ブラウン管 12 パネル外面 34 ノズル 47 翼体 11 CRT 12 Outside panel 34 Nozzle 47 Wing

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 ブラウン管のパネル外面に表面膜形成用
の薬液を塗布し、 ブラウン管を回転させて薬液の余剰分をパネル外面から
飛散させるとともに、ノズルから噴出させる気体をパネ
ル外面の任意の部分に吹き付け、 パネル外面に表面膜を形成することを特徴とするブラウ
ン管の製造方法。1. A chemical liquid for forming a surface film is applied to the outer surface of the panel of the cathode ray tube, and the excess of the chemical liquid is scattered from the outer surface of the panel by rotating the cathode ray tube, and a gas ejected from a nozzle is applied to an arbitrary portion of the outer surface of the panel. A method for manufacturing a cathode ray tube, which comprises spraying and forming a surface film on the outer surface of the panel. 【請求項２】 ブラウン管のパネル外面に表面膜形成用
の薬液を塗布し、 ブラウン管を回転させて前記薬液の余剰分をパネル外面
から飛散させるとともに、ブラウン管と一体的に回転す
る翼体で気流を発生させて気体をパネル外面の任意の部
分に吹き付け、 ブラウン管のパネル外面に表面膜を形成することを特徴
とするブラウン管の製造方法。2. A chemical solution for forming a surface film is applied to the outer surface of the panel of the cathode ray tube, and the excess of the chemical solution is scattered from the outer surface of the panel by rotating the cathode ray tube, and at the same time, the airflow is generated by the blades that rotate integrally with the cathode ray tube. A method for producing a cathode ray tube, which comprises generating and blowing gas to an arbitrary portion on the outer surface of the panel to form a surface film on the outer surface of the panel of the cathode ray tube.
JP20948293A 1993-08-24 1993-08-24 Manufacture of crt Pending JPH0765718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20948293A JPH0765718A (en) 1993-08-24 1993-08-24 Manufacture of crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20948293A JPH0765718A (en) 1993-08-24 1993-08-24 Manufacture of crt

Publications (1)

Publication Number Publication Date
JPH0765718A true JPH0765718A (en) 1995-03-10

Family

ID=16573571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20948293A Pending JPH0765718A (en) 1993-08-24 1993-08-24 Manufacture of crt

Country Status (1)

Country Link
JP (1) JPH0765718A (en)

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