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Color cathode ray tube

一种阴极射线管、彩色的技术，应用在阴极射线管/电子束管、放电管、电气元件等方向，能够解决不能有效地减小抵达误差等问题

Inactive Publication Date: 2007-06-27
MERIDIAN SOLAR & DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method cannot effectively reduce the arrival error due to the geomagnetic field

Method used

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  • Color cathode ray tube
  • Color cathode ray tube
  • Color cathode ray tube

Examples

Experimental program
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Effect test

no. 1 example

[0044] According to one aspect of the present invention, there is provided a color cathode ray tube comprising: a panel having a phosphor screen formed on an inner surface thereof, a shadow mask having a phosphor screen portion and a peripheral skirt bent backward from the phosphor screen portion , and a frame attached to the skirt of the shadow mask, wherein the height of the skirt at the long side of the screen portion is different from the height of the skirt at the short side of the screen portion, and the skirt at the short side of the screen portion is more open hole.

[0045] Figure 5a shows a perspective view of a shadow mask according to a preferred embodiment of the present invention.

[0046] As shown in FIG. 5a, the shadow mask according to this embodiment includes a phosphor screen portion and a peripheral skirt portion bent and extended rearwardly from the phosphor screen portion. The phosphor screen portion further includes a hole portion 501 in which micro-hol...

no. 2 example

[0067] According to another aspect of the present invention, there is provided a color cathode ray tube comprising: a panel having a phosphor screen formed on an inner surface thereof, a shadow mask having a phosphor screen portion and a peripheral skirt bent backward from the phosphor screen portion , and a frame connected to the skirt of the shadow mask, wherein the height of the skirt is less than or equal to 12 mm for substantially the entire skirt, and a plurality of holes are punched in the skirt of the short side of the phosphor screen portion.

[0068] Fig. 9 shows a perspective view of a shadow mask according to a second embodiment of the present invention.

[0069] As shown in FIG. 9, a shadow mask according to a second embodiment of the present invention includes a phosphor screen portion and a peripheral skirt portion bent rearwardly from the phosphor screen portion and extending rearward from the phosphor screen portion. The phosphor screen portion further include...

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PUM

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Abstract

A color cathode ray tube in which beam landing errors caused by non-uniform thermal expansion of a shadow mask and the terrestrial magnetism are corrected is provided such that color purity is improved. The color cathode ray tube in accordance with the present invention comprises a panel having a phosphor screen formed on an inner surface thereof, a shadow mask having a faceplate portion and a peripheral skirt portion bent back from the faceplate portion and a frame joined to the skirt portion of the shadow mask is provided, wherein height of the skirt portion at a long side of the faceplate portion is different from height of the skirt portion at a short side of the faceplate portion, and a plurality of holes are perforated at the skirt portion of a short side of the faceplate portion.

Description

[0001] This non-provisional application claims priority under 35 U.S.C. §119(a) to Patent Application No. 10-2003-82792 filed in Korea on November 20, 2003, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to a color cathode ray tube, and more particularly, to a color cathode ray tube in which beam landing errors caused by non-uniform thermal expansion of a shadow mask are corrected, resulting in improved color purity. Background technique [0003] FIG. 1 shows a schematic diagram illustrating the structure of a conventional color cathode ray tube of the background art. As shown in FIG. 1, a color cathode ray tube generally includes a spherical glass envelope consisting of a phosphor screen panel 10, a tubular neck 120, and a funnel 20 connecting the panel 10 and the neck 120. [0004] Panel 10 includes a screen portion and peripheral side wall portions, the latter being in sealing engagement with funnel 20 . ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/07H01J29/02
CPCH01J2229/0766H01J29/07H01J29/02
Inventor 朴相润崔钟彦郑平守
Owner MERIDIAN SOLAR & DISPLAY