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Cathode ray tube

A cathode ray tube and shadow mask technology, applied in the direction of cathode ray tube/electron beam tube, cathode ray/electron beam tube shell/container, discharge tube, etc., can solve the problems of halo, electron beam screen, etc.

Inactive Publication Date: 2008-09-10
MERIDIAN SOLAR & DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since existing elongated cathode ray tubes use a frame having an existing structure, as described above, they have problems caused by electron beam screen phenomenon or halo phenomenon

Method used

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  • Cathode ray tube
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Embodiment Construction

[0029] Next, an exemplary embodiment of a cathode ray tube according to the present invention will be described with reference to the drawings. In the following description, the same elements are referred to by the same names and denoted by the same reference numerals.

[0030] figure 2 is a sectional view illustrating a part of a cathode ray tube according to the present invention. Figure 3 is a perspective view of the frame illustrating the major, minor and diagonal axes of the frame. 4 is a perspective view illustrating openings formed in a frame included in a cathode ray tube according to the present invention and respective widths of the openings along major, minor and diagonal axes of the frame.

[0031] Such as figure 2 As shown, the cathode ray tube according to the present invention includes: a panel 1, a screen 4 formed on the inner surface of the panel 1, a shadow mask 3 formed with a plurality of grooves, and a frame 6. figure 2 A cross section of the cathode r...

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PUM

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Abstract

A cathode ray tube in which an opening defined by an edge of a bottom wall of a frame has longer-axis, shorter-axis, and diagonal axis widths appropriately determined in accordance with a distance from a deflection center of a panel to an edge of a skirt of the panel, in order to eliminate problems such as an electron beam shielding phenomenon and a halation phenomenon.

Description

technical field [0001] The present invention relates to a cathode ray tube, and more particularly, to such a cathode ray tube in which the opening defined by the edge of the bottom wall of the frame has a value appropriately determined according to the distance from the center of deflection of the panel to the edge of the skirt of the panel. Major, minor and diagonal widths to eliminate problems such as beam shadowing and haloing. Background technique [0002] A conventional cathode ray tube will be described below with reference to FIG. 1. FIG. [0003] FIG. 1 is a cross-sectional view illustrating the structure of a conventional cathode ray tube. As shown in FIG. 1 , an existing cathode ray tube includes a panel 1 , a funnel 2 , a shadow mask 3 , a screen 4 , a deflection coil 5 , a frame 6 , a spring 7 and an inner shield 8 . [0004] The operation of the cathode ray tube having the above-mentioned structure will now be described. The electron beam emitted from the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/86H01J29/02H01J29/07
CPCH01J29/07H01J29/073H01J29/861H01J2229/0722H01J2229/862
Inventor 金星勋
Owner MERIDIAN SOLAR & DISPLAY