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Cathode ray tube and method for manufacturing the same

A cathode ray tube and coil technology, applied in the field of cathode ray tubes and their manufacturing, can solve the problems of increased cost, damage to the insulating layer of the heater, reduced output, etc., to achieve the effects of improving quality and welding stability, and reducing quantity

Inactive Publication Date: 2005-02-09
LG PHILIPS DISPLAY KOREA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the insulating layer of the heater may be damaged due to external vibrations given to the heater and coil expansion / contraction caused by power ON / OFF
In addition, although the heat generating part B has a small coil pitch to realize a high-efficiency heater, the number of required coils 420 increases, resulting in an increase in cost and a decrease in yield.

Method used

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  • Cathode ray tube and method for manufacturing the same
  • Cathode ray tube and method for manufacturing the same
  • Cathode ray tube and method for manufacturing the same

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Embodiment Construction

[0034] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0035]According to claim 1 of the present invention, there is provided a plasma display panel with a plurality of discharge cells, which includes barrier ribs and a low-dielectric constant oxide film formed on each barrier rib. A discharge space is defined between the upper substrate and the lower substrate.

[0036] According to claim 2 of the present invention, the oxide film of the plasma display panel of claim 1 includes at least one of silicon oxide and magnesium oxide.

[0037] According to claim 3 of the present invention, the plasma display panel of claim 1 further includes: a first electrode formed on the lower side of the upper substrate; and a first electrode formed on the upper side of the upper substrate to extend on the first electrode Way to form the second electrode.

[0038] According to claim 4 of the present invention, the barrier ...

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PUM

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Abstract

The present invention discloses a cathode ray tube including an electron gun having a heater and a method for manufacturing the same. The heater is formed using a coil and includes a heat-emitting part having a heat-focusing part on which heat generated from the coil is focused and a buffering part for buffering shocks, and a triple coil part formed such that the coil is wound in three levels at predetermined pitches. The pitches of second and third levels of the triple coil part are substantially identical to each other and larger than the pitch of the first level. The present invention can improve the quality and welding reliability of the heater and reduce the quantity of coil required and time required for winding the coil while accomplishing high efficiency heating.

Description

[0001] This non-provisional application claims the priority of patent application No. 10-2003-0048729 filed in Korea on July 16, 2003 in accordance with 35 U.S.C.119(a), which is hereby fully included as a reference. Technical field [0002] The present invention relates to a cathode ray tube including an electron gun with a heater and a method of manufacturing the same. Specifically, the present invention relates to a cathode ray tube including an electron gun having a heater and a method of manufacturing the same, wherein the heater is used to apply heat to an oxide cathode to emit electrons. Background technique [0003] figure 1 An existing cathode ray tube is shown. Generally, the cathode ray tube includes a panel 110 coated with a fluorescent material, a kinescope shadow mask 120 combined with the inner side of the panel to select a color, and a spotlight lamp cover 130 combined with the panel 110, The neck 150 in which the electron gun 140 is located, and the deflection c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J29/48H01J1/20H01J1/22H01J9/08H04N9/04
CPCH01J1/22H01J2201/2882H01J29/48
Inventor 林南麟
Owner LG PHILIPS DISPLAY KOREA CO LTD
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