• 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:
    1. SHADOW MASK FOR A COLORED KINESCOPE, containing a plurality of holes and made with corrugations parallel to one side of the mask, characterized in that, in order to improve the image quality of the mask and simplify its manufacturing technology by reducing the range of size changes of the holes in the mask, the corrugations made with a decaying intensity of the change in the envelope line of the wave from the center of the mask to its periphery. 2. Mask according to Claim. 1,. T t and ch and y with the fact that the corrugations are made with dampers and a shlitydddy wave. 3. Mask on PP. 1 and 2, characterized in that the corrugations are made with the damped frequency of the wave.
    公开号:SU1145942A3
    申请号:SU792762798
    申请日:1979-05-10
    公开日:1985-03-15
    发明作者:Тибор Виланий Зигмунд
    申请人:Рка Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to television technology and can be used in color picture tubes that use a shadow mask. Known shadow masks for color kinescopes containing a plurality of apertures. Converging electron beams are projected through a multi-path shadow mask onto a mosaic screen. The paths of the rays are such that each of them excites only one type of color-emitting phosphor on the screen. The shadow mask is attached to a rigid frame, which, in turn, is attached to a kinesk balloon. Known masks are made almost flat or in the shape of the screen. . However, such a mask has an insufficient self-retaining strength or rigidity. One of the ways to ensure such strength or stiffness is to place a can under mechanical stress. Mechanical stress methods are associated with undesirable high costs for frames. Closest to the invention is a shadow mask containing a plurality of apertures and executed with corrugations parallel to one of the sides of the mask C2. However, a regular wavy shape with a predominantly sinusoidal cross section may turn out to be a non-optimal contour. For example, in a kinescope with a wavy mask, the gap between two apertures and the width of the aperture change as a function of the gap between the mask and screen and the relative angle formed by the electron beam and mask. The required change in the width of the aperture creates additional problems of etching the apertures before the mask is obtained, which complicates the technology, or does not allow for obtaining high image quality. Since the required oscillations of the property are maximized at the edges of the mask, it is necessary to either reduce the oscillations between the mask and the screen or decrease the angle of the beam mask on these edges. The aim of the invention is to increase the image quality and simplify the manufacturing technology by reducing the range of changes in the size of the holes in the mask. 2J This goal is achieved by the fact that in a shadow mask for a color kinescope containing a plurality of holes and made with corrugations parallel to one side of the mask, the corrugations are made with a damped intensity of variation of the envelope wave line from the center of the mask to its periphery. Either the amplitude or frequencies of the wave can be damped. FIG. 1 shows a schematic of a color picture tube with a tan mask; in fig. 2-4 embodiments of the corrugated mask. . The color kinescope (Fig. 1) contains evacuated glass and a flask 1 with a rectangular flat screen 2, a bell 3 and a neck 4. The three-color fluorescent screen is fixed: on the inner surface 5 of the screen panel. Block 6 of electron guns, located in the neck 4, contains three electron guns: one for each of the three phosphorescent layers on screen 2. In flask 1, next to screen 2, there is a shadow mask 7 with rectangular openings. Aperturn mask 7 has a corrugated shape, curved along the horizontal axis, and a large number of elongated holes arranged in parallel vertical columns. The gap between the columns varies in accordance with the size of the gap between the mask and the screen so that the phosphorescent elements on the screen are evenly located relative to each other. The invention improves the conformation of the mask, having a corrugated shape, by providing changes in the amplitude and / or frequency of the wave of the corrugations. In the embodiment of FIG. 2, the amplitude of the wave in the mask 7 decreases from the center of the mask To its edge. Such a mask configuration can be used in cases where the stiffness requirements imposed on the edges of the mask are less than at its center. For example, the sides of the mask of the mask. It can be held tightly with the help or with a flexible, dynamic rigid frame, thereby reducing the need for the amplitude of the shirring.
    权利要求:
    Claims (3)
    [1]
    1. SHADOW MASK FOR A COLORED KINESCOPE, containing many holes and made with corrugations parallel to one of the sides of the mask, characterized in that, in order to improve the image quality of the mask and simplify its manufacturing technology by reducing the range of changes in the size of the holes in the mask, corrugations made with damping intensity changes in the envelope of the wave line from the center of the mask to its periphery.
    [2]
    2. The mask by π. 1, with the fact that the corrugations are made with a damped wave amplitude.
    [3]
    3. The mask according to paragraphs. 1 and 2, which is due to the fact that the corrugations are made with a damped wave frequency.
    SUn, 1145942
    1 1,145,942 4
    类似技术:
    公开号 | 公开日 | 专利标题
    US4136300A|1979-01-23|Cathode ray tube having improved shadow mask
    RU2062522C1|1996-06-20|Front panel for screen color cathode-ray tube of high-resolution tv
    CN1061778C|2001-02-07|Color kinescope with improved aperture space distance shadow mask
    SU1145942A3|1985-03-15|Shadow mask for colour kinescope
    CA1070747A|1980-01-29|Cathode ray tube having shadow mask with variable aperture spacing and mask-screen spacing
    US4162421A|1979-07-24|Cathode ray tube having corrugated shadow mask with slits
    CA1111893A|1981-11-03|Cathode-ray tube having a stepped shadow mask
    GB2098392A|1982-11-17|Colour cathode ray tubes
    US4122368A|1978-10-24|Cathode ray tube with a corrugated mask having a corrugated skirt
    US5990607A|1999-11-23|Shadow mask for color CRT and method for forming same
    US6124668A|2000-09-26|Color cathode ray tube
    CA1147009A|1983-05-24|Screen border improvement for cathode-raytube with slit apertured mask
    US3979630A|1976-09-07|Shadow mask color picture tube having non-reflective material between elongated phosphor areas and positive tolerance
    SU1304760A3|1987-04-15|Colour kinescope
    SU1170980A3|1985-07-30|Cathode-ray tube
    US4691138A|1987-09-01|Color picture tube having shadow mask with varied aperture column spacing
    US2855529A|1958-10-07|Color-kinescopes, etc.
    US4631441A|1986-12-23|Color picture tube having improved line screen
    CA1125348A|1982-06-08|Cathode-ray tube having corrugatedmask with increased mask-to-screen spacing
    US6111347A|2000-08-29|Aperture grill for a color cathode ray tube
    US6624557B2|2003-09-23|Cathode-ray tube with reduced moiré effect and a particular ratio of scanning pitches to aperture pitches
    KR0165059B1|1998-12-15|Cathode ray tube
    US6621206B2|2003-09-16|Color cathode ray tube
    KR100296195B1|2001-07-12|Color picture tube with shadow mask having improved mask aperture column spacing
    US5821684A|1998-10-13|Color cathode ray tube with suppressed doming
    同族专利:
    公开号 | 公开日
    CA1138514A|1982-12-28|
    AU4575779A|1979-11-15|
    PL131269B1|1984-10-31|
    GB2020897B|1982-10-27|
    DE2919165A1|1979-11-15|
    IT1112521B|1986-01-20|
    CS229623B2|1984-06-18|
    MX4553E|1982-06-10|
    FR2425718B1|1985-09-20|
    US4280077A|1981-07-21|
    NL7903699A|1979-11-13|
    FI791440A|1979-11-12|
    ATA334579A|1984-02-15|
    PL215384A1|1980-02-11|
    DD143837A5|1980-09-10|
    IT7922431D0|1979-05-07|
    AT376061B|1984-10-10|
    GB2020897A|1979-11-21|
    FR2425718A1|1979-12-07|
    JPS5747540B2|1982-10-09|
    JPS54147776A|1979-11-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3109117A|1961-05-22|1963-10-29|Rauland Corp|Color reproducing cathode-ray tube|
    JPS4965779A|1972-10-27|1974-06-26|
    US3944867A|1974-03-15|1976-03-16|Zenith Radio Corporation|Shadow mask having ribs bounding rectangular apertures|
    GB1546889A|1975-03-19|1979-05-31|Rca Corp|Cathode ray tube having shadow mask|
    US4072876A|1976-10-04|1978-02-07|Rca Corporation|Corrugated shadow mask assembly for a cathode ray tube|
    US4122368A|1977-07-08|1978-10-24|Rca Corporation|Cathode ray tube with a corrugated mask having a corrugated skirt|DE3137653A1|1981-09-22|1983-04-07|Siemens AG, 1000 Berlin und 8000 München|Gas-discharge display device having a fluorescent protective layer and an anode protection grid|
    US4839556A|1983-02-25|1989-06-13|Rca Licensing Corporation|Cathode-ray tube having an improved shadow mask contour|
    US4697119A|1985-01-11|1987-09-29|Kabushiki Kaisha Toshiba|Color cathode ray tube having a non-spherical curved mask|
    JPH07111877B2|1987-09-10|1995-11-29|三菱電機株式会社|Stretched shed mask|
    JP2001525113A|1998-02-16|2001-12-04|コーニンクレッカフィリップスエレクトロニクスエヌヴィ|Color display device having saddle-shaped color selection electrodes|
    US6433467B1|1999-02-10|2002-08-13|Samsung Sdi Co., Ltd.|Shadow mask for cathode ray tube|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/904,778|US4280077A|1978-05-11|1978-05-11|Cathode-ray tube having corrugated shadow mask with varying waveform|
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