• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    To coat the inner surface of the viewing window of a faceplate panel for a cathode-ray tube, of the type having a peripheral sidewall or flange around the window, dispense onto the surface a quantity of slurry in excess of what is required for the desired coating, spread the dispersed slurry over the surface, wet the uncoated inner surface of the sidewall with an aqueous medium, pass the excess portion of the slurry over the wet sidewall surface for removal from the panel, and then remove particulate material from the inner sidewall surface.
    公开号:SU1233819A3
    申请号:SU803217961
    申请日:1980-12-16
    公开日:1986-05-23
    发明作者:Чарльз Райх Фредерик
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a method of suspension coating the surface of a viewing window of a front plane of a tube with a peripheral side wall and can be used, in particular, for applying a layer of phosphorus particles on the inside surface of a viewing window of a front plane for subsequent manufacture of a cathode ray tube, for example, a color television tube. .
    The aim of the invention is to improve the quality of the applied layer by increasing the intensity of removing the excess layer from the side wall.
    In accordance with the proposed method, a certain amount of the suspension, exceeding that required to obtain the desired coating, is applied to the window surface and distributed along it, followed by npoji: o- house excess suspension over the side wall and its removal from the screen. The uncoated inner surface of the side wall is moistened with an aqueous medium after the suspension has been distributed and before the excess has been removed. When the surface is wetted, the bead is formed near the sealing area or on it, from where it can be economically removed with ultrasonic or other (for example, mechanical) means. The wetting operation can be carried out using conventional, cost-effective means on automatic 1-shee semi-automatic machines using water, preferably deionized, or water containing a wetting agent, for example, hylyvinyl alcohol.
     FIG. 1 shows a screen with a front plane, a cross section (operations for applying a certain amount of suspension to: the aerial plane); in fig. 2 - the same, (operations for the distribution of the suspension on the panel window); in FIG. 3 the same (operations of the uncovered side wall of the panel); in fig. 4 - the same (operations to remove excess suspension from the screen); in fig. 5 shows the usual arrangement of the suspension bead and ultrasonic cleaning of the side wall.
    The preferred embodiment of the invention is described in relation to the coating of the inner surface of the viewing window of a series of front planes for cathode ray tubes, in particular for kinescopes of color television sets. As shown in FIG. 1-5, the front plane screen 1 comprises a glass viewing window 2 and a side wall 3 which is integral with it or a flange around the window 2. The elongated end of the side wall 3 comprises a sealing portion 4. In the inner side of the side wall between the window 2 and the sealing area 4, at least three metal protrusions 5 are embedded. In this embodiment, three phosphoric compounds (emitting red, green and blue light) are introduced into separate suspensions and individually applied to the inner surface of the container. post-treatment windows to obtain a phosphoric bitmap. The figure may be formed from a different material than phosphorus or have other shapes than the ones formed by dots, for example, in the form of system bands, etc.
    The front plane screen is held in a holder (not shown) that rotates and swings to support operations in this method. The holder can move from position to position in which the waves 1t. various operations of the process in this way. As shown in FIG. 1, measured amount
    Suspension 7 is transferred from the metering nozzle 8 onto the inner surface BST 6 slowly rotating and swinging. of the screen 1, the screen-an 1 rotates with in the direction indicated by the arrow around the axis of rotation 9, perpendicular to the plane of the sealing area and passing through the center of the window 2. The axis of rotation deviates from the vertical axis 10 by an angle oi from the position of the axis by zero degrees at which the sealing area is facing down.
    As shown in FIG. 2, the holder of a piece is provided with the possibility of rotation and swing according to a predetermined program of obtaining a coating or layer 11 of phosphorus particles on
    surface of the viewing window. The speed of rotation and the angle of inclination of the wrap; the axes are adjusted to distribute the phosphorus suspension in a spiral.
    Then, as shown in Fig. 3, with continued rotation of window 2 relative to axis 10 at a certain angle on a uncovered section 12 of the side wall 3 from the Nozzle 13 a small amount of deionized water is sprayed. Although water is sprayed in excess, it is applied to an uncoated surface in an amount sufficient to wet the surface, but not sufficient to obtain the desired coating on layer 11,
    Instead of deionized water, you can use any other aqueous medium that does not contain substances unacceptable for suspension or for the coating method. You can use deionized water, distilled water or water containing a wetting agent such as polyvinyl alcohol.
    Thereafter, the excess suspension is removed. As shown in FIG. 4, the screen slowly rotates around axis 9, which is at an inclination of 80 from the vertical axis 10. Excess slurry 14 passes over part of the side wall 3 and extends over the sealing section 4. In this case, part of the side wall 4 is covered, and the other part 15 remains uncovered. A fillet material is formed along the coated side of border 16. The boundary 16 extends over the sealing area 4 and, as shown in FIG. 4, may extend between the metal protrusion 5 and the sealing portion.
    Then the rotation is stopped, the axis of rotation is retracted to O (in the lower position of the sealing section) and the side wall 3 is immersed in water 338 194
    NEED Wednesday 17 from the sealing area 4 to the position between the metal protrusion 5 and the coating 11, but without participating in this coating 11. Water 5 to Wednesday 17 contains in tray 18 having a channel 19 for depressurizing the air inside the screen 1. In the position shown in FIG. 5, the suspension is removed from the side wall 3
    10 by ultrasound or other known means.
    权利要求:
    Claims (4)
    [1]
    Invention Formula
    15 1 Method of applying the suspension
    phosphor on the cathode ray tube inner surface, which involves applying an excess amount of suspension at 2Q screen rotation and removing an excess amount of suspension from the inner surface of the side wall across its edge adjacent to the CBapHoii face, characterized in that 5 in order to improve the quality of the applied layer by increasing the intensity of removing the excess layer from the side wall, after applying the suspension on the screen and before passing it along the side wall oic wall wetted with an aqueous medium.
    [2]
    2. The method according to claim 1, about tl and h ayu li and with the fact that deionized or distilled water or a diluted solution of polyvinyl alcohol is used as the aqueous medium.
    [3]
    3. Method according to paragraphs. 1 and 2, about t. L. And - h and y and i with the fact that wetting is carried out by splitting.
    [4]
    4. The method according to claim 1, characterized by the fact that the excess part of the suspension is removed by ultrasound.
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    Compiled by B, A ,; :( Editor 3 Ivanov Tekhred, L. 0: -1and; l Co. Tractor T. Kolb
    Order 2790/60 Circulation b Subsigned
    VYIIPI State ko-k chgga USSR
    on affairs of inventions and (130355 Moscow. F --- 35, Raushsk; iab. -, d.
    Production and printing company, city, city, st. Design, i
    Fmz.5
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1233819A3|1986-05-23|Method of applying luminophor suspension on internal surface of cathode-ray tube screen
    US3652323A|1972-03-28|Process for coating flatlike surfaces
    US2774682A|1956-12-18|Method of forming a phosphor screen
    US3440081A|1969-04-22|Method for the fabrication of image display screens
    GB2061542A|1981-05-13|Method of forming a fluorescent screen for color picture tubes
    US4463075A|1984-07-31|Process for forming conductive bridge in cathode ray tubes
    US4284694A|1981-08-18|Method for improving the adherence of a phosphor-photobinder layer to a glass support
    DE2059786C3|1978-01-19|Process for coating a flat or slightly curved surface
    US6939190B2|2005-09-06|Neck cleaning method for a CRT
    US5336575A|1994-08-09|Method of producing CRT screens using meniscus coating
    KR900001600B1|1990-03-15|The manufacturing method of crt fluorescent panel
    US3440077A|1969-04-22|Method of fabricating a color cathode ray tube screen
    KR930006479B1|1993-07-16|Method of making screen film for crt
    US6010386A|2000-01-04|Method for removing black film from skirt of CRT front panel
    KR100211556B1|1999-08-02|Panel for color crt
    KR0136967Y1|1999-02-18|Nozzle structure of a distributor for fluorescent substance in cathode ray tube
    US2032760A|1936-03-03|Cathode bat tube
    JP3032515B2|2000-04-17|Manufacturing method of cathode ray tube
    US6592420B1|2003-07-15|Manufacturing method for a glass substrate having a phosphor layer used as a color cathode ray tube front panel and a color cathode ray tube manufacturing method
    JPH10188802A|1998-07-21|Manufacturing device for cathode-ray tube phosphor screen and manufacture thereof
    JPH05225900A|1993-09-03|Interior graphite coating apparatus
    KR19990012439A|1999-02-25|Method for forming fluorescent film of color CRT
    JP2001068022A|2001-03-16|Method and device for manufacture of cathode-ray tube and liquid applying method
    JPH0794088A|1995-04-07|Method for forming phosphor screen for cathode-ray tube
    JPH0737499A|1995-02-07|Method and device for coating color phosphor screen of cathode-ray tube
    同族专利:
    公开号 | 公开日
    DD155366A5|1982-06-02|
    US4254160A|1981-03-03|
    CA1135567A|1982-11-16|
    JPS5727567B2|1982-06-11|
    DE3047611A1|1981-09-17|
    PL135034B1|1985-09-30|
    FR2471664A1|1981-06-19|
    IT1133779B|1986-07-09|
    DE3047611C2|1982-09-16|
    IT8025862D0|1980-11-10|
    JPS5696442A|1981-08-04|
    FR2471664B1|1984-01-27|
    PL228506A1|1981-08-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2902973A|1956-08-23|1959-09-08|Rca Corp|Coating apparatus|
    US3364054A|1963-10-14|1968-01-16|Rca Corp|Method of salvaging phosphor slurry in a spin coating process for making phosphor screens for cathode ray tubes|
    US3672932A|1969-06-24|1972-06-27|Rca Corp|Process for screening cathode ray tubes including salvaging of excess phosphor slurry|
    US3653941A|1970-03-02|1972-04-04|Rca Corp|Slurry process for coating particulate material upon a surface|
    US3759735A|1970-09-11|1973-09-18|Zenith Radio Corp|Panel method for cleaning the sealing land of a cathode ray tube faceplate|
    US4078095A|1974-03-28|1978-03-07|Rca Corporation|Slurry process for coating particles upon the viewing-window surface of a cathode-ray tube|
    US4035524A|1976-04-01|1977-07-12|Zenith Radio Corporation|Process for coating a phosphor slurry on the inner surface of a color cathode ray tube faceplate|DE3511211A1|1985-03-28|1986-10-09|Standard Elektrik Lorenz Ag, 7000 Stuttgart|COLOR IMAGE TUBES WITH AN INNER CONDUCTIVE LAYER AND METHOD FOR PRODUCING THE COLOR IMAGE TUBES|
    NL8502570A|1985-09-20|1987-04-16|Philips Nv|ROENTGEN IMAGE AMPLIFIER TUBE WITH APPROVALIZED MICROSTRUCTURE.|
    JPH03173043A|1989-11-21|1991-07-26|Samsung Electron Devices Co Ltd|Manufacture of fluorescent screen of color cathode-ray tube|
    GB2238162A|1989-11-24|1991-05-22|Samsung Electronic Devices|Manufacturing phosphor screens for colour cathode ray tubes|
    KR920005770Y1|1990-05-25|1992-08-21|삼성전관 주식회사|Pannel washing equipment of crt|
    JPH04137436A|1990-09-28|1992-05-12|Sony Corp|Manufacture of cathode-ray tube|
    DE4105297C2|1991-02-20|1992-11-26|Samsung Electron Devices Co., Ltd., Kyonggi, Kr|
    CN1093783C|1996-02-21|2002-11-06|松下电器产业株式会社|Liquid application nozzle, method of manufacturing same, liquid application method, liquid application device, and method of manufacturing cathode-ray tube|
    DE19638951B4|1996-09-16|2006-04-20|Samsung Sdi Germany Gmbh|Method and apparatus for optimizing phosphor coating in picture tube production|
    US6103297A|1998-01-14|2000-08-15|Matsushita Electronics Corporation|Method of manufacturing cathode-ray tube|
    US6592420B1|1999-06-18|2003-07-15|Matsushita Electric Industrial Co., Ltd.|Manufacturing method for a glass substrate having a phosphor layer used as a color cathode ray tube front panel and a color cathode ray tube manufacturing method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/103,920|US4254160A|1979-12-17|1979-12-17|Method for slurry coating a faceplate panel having a peripheral sidewall|
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