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Tension shadow assembly for plain cathode-ray tube

A flat cathode, ray tube technology, applied in the direction of cathode ray tube/electron beam tube, discharge tube, electrical components, etc., can solve the problem of increasing the number of parts

Inactive Publication Date: 2007-09-26
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] Moreover, the wire support (15) that applies tension to the horizontal damping line (14) also needs to be additionally provided with a support body (16'), which will cause an increase in the number of parts

Method used

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  • Tension shadow assembly for plain cathode-ray tube
  • Tension shadow assembly for plain cathode-ray tube
  • Tension shadow assembly for plain cathode-ray tube

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0048] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Where the parts are the same as those described in the prior art, the same reference numerals are used for the same constituent parts, and overlapping descriptions will be omitted.

[0049] Fig. 1 is a sectional view of the internal structure of a general plane CRT suitable for use in the present invention; Fig. 9 is a perspective view showing a supporting structure according to an embodiment of the present invention; Mechanical principle diagram; Figure 11 is a schematic diagram showing the action principle of the structure.

[0050] The structure of the support structure (8) in this embodiment is generally similar to that described in the prior art, and the tension adjustment member (26) is welded to the bracket in a parallel direction on the outer surface of the bracket (13). The tension adjusting member (26) is made of a material havi...

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PUM

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Abstract

A tension mask assembly of a flat CRT is provided. The tension mask assembly includes a tension mask, which is placed to be opposite to a phosphor screen formed at an inner surface of a panel a predetermined distance from the phosphor screen and which serves to discriminate colors of electron beam; an aperture grill, which serves as an electron beam transmitting hole and which is formed on an effective surface of the tension mask having a slot or a dot shape; a rail which is supported by applying a predetermined tension to both ends of a long side part or short side part of the tension mask; a support bar, which supports both ends of the rail by being arranged in a direction that crosses with the rail and which has a support spring and a tamper wire disposed thereon; and a tension controlling member, which has a different rate of thermal expansion from the support bar and which is placed in a longitudinal direction against a side wall of a support bar.

Description

technical field [0001] The present invention relates to a supporting structure for a color cathode ray tube (CRT) mask, more particularly, to a tension type escutcheon mask having a color selection function arranged inside a fluorescent screen of a flat CRT, and supporting the escutcheon mask and A tension mask structure for a flat CRT that maintains a constant tension. Background technique [0002] The image display surface of the flat CRT, that is, the fluorescent panel at the front end, is a plane. When the electron beam emitted from the electron gun moves at a uniform speed and hits the fluorescent surface formed in a certain way on the inner side of the display screen, the fluorescent body emits visible light to display image. [0003] At the inner surface of the fluorescent screen of a flat CRT, the film-like tensioned grille mask (hereinafter referred to as the tension mask) that maintains a certain distance from the fluorescent surface maintains a certain tension st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J29/07H01J29/06
CPCH01J2229/0722H01J2229/0761H01J29/073H01J2229/0744H01J29/06
Inventor 李太薰
Owner LG ELECTRONICS INC