Abstract: Provided is an food packing material, manufacturing method. A battery pack and a electrical bike having the same are further provided. In particular, the battery pack may include a battery pack, battery array, a protecting circuit module, and a connection terminal section. The battery case may be formed as cylindrical or polygon. The battery array may include a plurality of batteries formed as multi-stage within the battery pack. The protecting circuit module may be provided between an upper portion of the battery array and an upper surface of the battery pack. A connection terminal portion may be formed at the lower stage of the battery pack and may include a power terminal and a control terminal. By providing the battery pack as bottle shape, the electrical bike can selectively accommodate the bottle for the bike and the battery pack.

Abstract: Provided is an food packing material, manufacturing method. A battery pack and a electrical bike having the same are further provided. In particular, the battery pack may include a battery pack, battery array, a protecting circuit module, and a connection terminal section. The battery case may be formed as cylindrical or polygon. The battery array may include a plurality of batteries formed as multi-stage within the battery pack. The protecting circuit module may be provided between an upper portion of the battery array and an upper surface of the battery pack. A connection terminal portion may be formed at the lower stage of the battery pack and may include a power terminal and a control terminal. By providing the battery pack as bottle shape, the electrical bike can selectively accommodate the bottle for the bike and the battery pack.

Abstract: Provided is an food packing material, manufacturing method. A battery pack and a electrical bike having the same are further provided. In particular, the battery pack may include a battery pack, battery array, a protecting circuit module, and a connection terminal section. The battery case may be formed as cylindrical or polygon. The battery array may include a plurality of batteries formed as multi-stage within the battery pack. The protecting circuit module may be provided between an upper portion of the battery array and an upper surface of the battery pack. A connection terminal portion may be formed at the lower stage of the battery pack and may include a power terminal and a control terminal. By providing the battery pack as bottle shape, the electrical bike can selectively accommodate the bottle for the bike and the battery pack.

Abstract: A battery pack and a method of fabricating the same. The battery pack includes a bare cell including an electrode terminal, a protection circuit board electrically connected to the bare cell, the protection circuit board including a plurality of metal tabs arranged at opposite ends thereof, and a case surrounding the protection circuit board, the case being perforated by a plurality of first apertures arranged at locations that correspond to ones of the plurality of metal tabs. The method includes arranging a bare cell having a cap plate and an electrode terminal passing through a terminal aperture in the cap plate, electrically connecting a protection circuit board to the bare cell, the protection circuit board having metal tabs arranged at both ends thereof and arranging a case to surround the protection circuit board, the case being perforated by a plurality of first apertures that are arranged at locations that correspond to ones of the metal tabs.

Abstract: Provided is an food packing material, manufacturing method. A battery pack and a electrical bike having the same are further provided. In particular, the battery pack may include a battery pack, battery array, a protecting circuit module, and a connection terminal section. The battery case may be formed as cylindrical or polygon. The battery array may include a plurality of batteries formed as multi-stage within the battery pack. The protecting circuit module may be provided between an upper portion of the battery array and an upper surface of the battery pack. A connection terminal portion may be formed at the lower stage of the battery pack and may include a power terminal and a control terminal. By providing the battery pack as bottle shape, the electrical bike can selectively accommodate the bottle for the bike and the battery pack.

Abstract: A battery pack and a method of fabricating the same. The battery pack includes a bare cell including an electrode terminal, a protection circuit board electrically connected to the bare cell, the protection circuit board including a plurality of metal tabs arranged at opposite ends thereof, and a case surrounding the protection circuit board, the case being perforated by a plurality of first apertures arranged at locations that correspond to ones of the plurality of metal tabs. The method includes arranging a bare cell having a cap plate and an electrode terminal passing through a terminal aperture in the cap plate, electrically connecting a protection circuit board to the bare cell, the protection circuit board having metal tabs arranged at both ends thereof and arranging a case to surround the protection circuit board, the case being perforated by a plurality of first apertures that are arranged at locations that correspond to ones of the metal tabs.

Abstract: 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.

Abstract: An electron gun includes a cathode, a control electrode, a screen electrode arranged in front of the control electrode, at least one focusing electrode arranged in front of the screen electrode to form a pre-focusing lens unit, a final accelerating electrode arranged in front of the focusing electrode(s) to form a main lens unit, and a shield cup electrically connected to the final accelerating electrode. The iron-chromium-nickel alloy for the focusing electrode(s), the final accelerating electrode, and the shield cup contains 18-20% or less by weight of chromium, 8-10% by weight of nickel, 0.03% or less by weight of carbon, 1.00% by weight of silicon, 2.00% or less by weight of manganese, 0.04% or less by weight of phosphorous, 0.03% or less by weight of sulfur, a balance of iron, and a trace of impurities, and has an average granularity of 0.010-0.022 mm.

Abstract: 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 emi

Abstract: A flat cathode ray tube is provided. The flat cathode ray tube includes a shadow mask having a plurality of electron beam holes, a shadow mask frame having multiple-layered support members continuously connected, for supporting the shadow mask, and an inner shield connected to the shadow mask frame. The support member for supporting a shadow mask is solidified by forming multiple-layer laminates. Also, mobility is provided to the longer sides of the shadow mask, thereby easily applying a tension to the shadow mask.

Abstract: 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.

Abstract: A dynamic focus electron gun for a color cathode ray tube including a cathode, a control electrode and a screen electrode, which constitute a triode, a first focusing electrode having three vertically elongated electron beam through-holes formed through its emitting surface, a second focusing electrode which constitutes a quadrupole lens together with the first focusing electrode and having three circular electron beam through-holes formed through its entering surface facing the emitting surface of the first focusing electrode, and a final accelerating electrode installed adjacent to the second focusing electrode and constituting a main electronic lens together with the second focusing electrode.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A color CRT is driven by focusing and accelerating an electron beam emitted from a cathode by forming a plurality of electron lens including a quadrupole lens by applying a predetermined voltage to the cathode of an electron gun installed at 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.

Abstract: 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:

Abstract: 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 comprising cathodes arranged in line, a plurality of 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 plurality of electrodes and provided with three electron beam passages in line, and magnetic pieces disposed on the shield cup or one or more electrodes among the plurality of electrodes in such a manner of positioning the center of a comma correction portion composed of the magnetic pieces above and below the spaces between the center of a central electron beam passage and the centers of side electron beam passages; and a deflection yoke disposed throughout the neck and cone por

Abstract: A flat cathode ray tube is provided. The flat cathode ray tube includes a shadow mask having a plurality of electron beam holes, a shadow mask frame having multiple-layered support members continuously connected, for supporting the shadow mask, and an inner shield connected to the shadow mask frame. The support member for supporting a shadow mask is solidified by forming multiple-layer laminates. Also, mobility is provided to the longer sides of the shadow mask, thereby easily applying a tension to the shadow mask.

Abstract: 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.