摘要:
An electrode unit of an electron gun for a cathode ray tube including an outer rim electrode having a large-diameter electron beam passing hole through which three electron beams pass, and an inner electrode installed within the outer rim electrode and having a central electron beam passing hole disposed at its center and side electron beam passing holes disposed at opposite sides of the central electron beam passing hole. The side electron beam passing holes each have first and second curved sides along the sides closest to the central electron beam passing hole and opposite those sides, and linear portions connecting the first and second curved portions. The vertical and horizontal dimensions of the side electron beam passing holes are equal to each other.
摘要:
A socket for interconnecting first and second lead pins fixed to a neck portion of a CRT at an array angle and to which a high voltage and a low voltage are applied, respectively, and a socket board including signal lines having an array angle different from that of the second lead pins, the socket including connector pins each having a pin holder portion connected to the second lead pin, an outer pin portion connected to the signal line, and an extension portion connecting the pin holder portion to the outer pin portion, and a socket main body to which the connector pins are fixed, wherein the array angle between the outer pin portions is the same as that between the signal lines.
摘要:
A color CRT is driven by focusing and accelerating an electron beam emitted from a cathode by forming electron lenses including a quadrupole lens by applying a predetermined voltage to the cathode of an electron gun installed in a neck portion of a funnel and each of electrodes, focusing the electron beam on a fluorescent film by applying a voltage having a horizontal dynamic waveform having a ratio of slopes of 6.85 or more between a unilateral area of 90% and a unilateral area of 50% of a raster area to which a video signal of an image is applied, to at least one of the electrodes forming the quadrupole lens, synchronized with a horizontal deflection signal of a deflection yoke installed at a cone portion of the funnel, in order to deflect an electron beam emitted from the electron gun and scan the deflected electron beam onto the fluorescent film of a panel sealed to the funnel, and forming an image by having the deflected electron beam land on the fluorescent film and excite the fluorescent film. Thus, resolution of the overall screen is increased.
摘要:
A color cathode-ray tube includes a housing including a panel having a phosphor screen on its inside and a funnel fastened to the panel, the funnel including a neck portion; an electron gun housed in the neck portion and emitting electron beams for exciting the phosphor screen and forming an image, the electron gun including cathodes arranged in line, electrodes sequentially disposed from the cathodes and having electron beam passages for passing three electron beams, a shield cup coupled to a last electrode among the electrodes and provided with three electron beam passages in line, and magnetic pieces disposed on the shield cup or one or more electrodes so that the center of a coma correction portion composed of the magnetic pieces is positioned above and below the line and in spaces between the center of a central electron beam passage and the centers of side electron beam passages; and a deflection yoke disposed on the neck and cone portions of the funnel, the deflection yoke deflecting electron beams emitted from the electron gun to land on positions on the phosphor screen.
摘要:
A cathode ray tube assembly includes a funnel having a neck, an electron gun having an electron emitter within the neck and having at least two focus electrodes for forming an electron lens for focusing and accelerating electron beams emitted from the electron emitter, lead pins extending through the neck and connected to the first and second focus electrodes, and a socket with pin connection terminals connectable to the lead pins; a voltage applying unit for applying an AC voltage to at least one of the focus electrodes through a lead pin connected to the focus electrode; and a voltage drop unit for reducing the AC voltage applied by the voltage applying unit to a second of the focus electrodes so that a reduced voltage is applied to a lead pin connected to the second focus electrode, the voltage drop unit being connected to the lead pins through pin connection terminals of the socket.
摘要:
A faceplate panel for a cathode ray tube includes an exterior surface having a substantially flat shape, and an interior surface having a concave shape. The interior surface curves in a direction toward the flat exterior surface with a diagonal curvature radius Rp satisfying the following condition: 1.2R ≦Rp≦8R, where R=1.767×the diagonal length of the effective screen of the panel. Furthermore, a peripheral thickness t of the faceplate panel at the diagonal end of the effective screen satisfies the following condition: B≦t≦A, where B is the peripheral thickness of the panel at the diagonal end of the effective screen when a diagonal curvature radius Rp of the interior surface is 8R, and A is the peripheral thickness of the panel on the diagonal end of the effective screen when a ratio of the light transmission at the peripheral portion of the diagonal end of the effective screen to the light transmission at the central portion of the effective screen is 0.85.
摘要:
A faceplate panel for a cathode ray tube includes an exterior surface having a substantially flat shape, and an interior surface having a concave shape. The interior surface curves in a direction toward the flat exterior surface with a curvature radius R.sub.p satisfying the following condition:1.2R.ltoreq.R.sub.p .ltoreq.8R,where R=1.767.times.the diagonal length of the effective screen of the panel. Furthermore, a peripheral thickness t of the faceplate panel at the diagonal end of the effective screen satisfies the following condition:B.ltoreq.t.ltoreq.A,where B is the peripheral thickness of the panel at the diagonal end of the effective screen when a curvature radius R.sub.p of the interior surface is 8R, and A is the peripheral thickness of the panel on the diagonal end of the effective screen when a ratio of the light transmission at the peripheral portion of the diagonal end of the effective screen to the light transmission at the central portion of the effective screen is 0.85.
摘要翻译:用于阴极射线管的面板包括具有基本平坦形状的外表面和具有凹形形状的内表面。 内表面朝向平坦的外表面的方向弯曲,曲率半径Rp满足以下条件:1.2R Rp = 8R,其中R = 1.767,与面板的有效屏幕的对角线长度。 此外,有效屏幕的对角端处的面板的周边厚度t满足以下条件:B <= t A,其中B是有效屏幕的对角线端部处的面板的周边厚度 当内表面的曲率半径Rp为8R时,并且当有效屏幕的对角线端部的周边部分的光透射比与有效屏幕的对角线端部的光透射率之比为A时,A是有效屏幕的对角线端部上的面板的外围厚度 有效屏幕中心部分的透光率为0.85。
摘要:
A flat panel for a cathode ray tube for preventing a screen image from being shown concavely to a user or viewer includes a flat outer surface and a non-spherically formed inner surface, the non-spherically formed inner surface satisfying formula 1: y1≦y2 (formula 1) wherein y1 represents a vertical distance between the outer surface and a refracted screen image on a central axis of the panel, and y2 represents a vertical distance between the outer surface and the refracted screen image in peripheral areas other than the central axis of the panel, and the panel has a high transmission ratio equal to or greater than about 60% for preventing degradation of luminance due to a difference in thickness between a central section and a peripheral section of the panel.
摘要翻译:用于防止屏幕图像向用户或观看者凹陷地显示的用于阴极射线管的平板包括平坦的外表面和非球形的内表面,非球形形成的满足公式1的内表面:<θin -line-formula description =“In-line Formulas”end =“lead”?> y <1> <= Y <2>(公式1)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中y 1表示在面板的中心轴线上的外表面与折射的屏幕图像之间的垂直距离,y 2 SUB>表示除了面板的中心轴线之外的外围区域中的外表面和折射屏幕图像之间的垂直距离,并且面板具有等于或大于约60%的高透射率以防止劣化 由于面板的中心部分和周边部分之间的厚度差而导致的亮度。