Shade structure for image in display

Abstract

The shade structure includes perforated binding mouth, shadow shade, electroconductive polyfoam gasket, binding part at shadow end, fixed metal plate, electroconductive rubber and metal fixed ring. The binding mouth is combined on neck area of cathode ray tube fixedly. The binding part makes the shadow end combine with neck area of cathode ray tube steadily. Electroconductive rubber enwinds the polyfoam gasket, fixed metal plate etc. parts. The neck part of metal fixed ring is connected to the neck combining part of the fixed metal plate. The shade structure located near to the source of generating electromagnetic wave blocks out electromagnetic wave effectively. The shade structure is simple and easy to be assembled.

Description

(1) Technical field [0001] The invention relates to an image mask at the image end of a display, in particular to an image mask structure of a display inserted into a slot fixed on the base plate of the image end of a cathode ray tube. (2) Background technology [0002] Recently, the trend toward larger displays, and following the improvement of their resolution, has greatly increased the amount of electromagnetic waves generated by cathode ray tubes (CRTs). Such electromagnetic waves not only affect the surrounding electronic equipment and cause misoperation, but also are particularly harmful to human health. [0003] For the above reasons, according to the international CISPR standard, electromagnetic waves are strictly limited. In addition, the FCC standard is used in the United States, and the VCCI standard is used in Japan, which have strict restrictions on electromagnetic waves. [0004] figure 1 It is a schematic diagram showing the mask structure of a conventional ...

AI Technical Summary

Problems solved by technology

[0008] As mentioned above, in the prior art, in order to seal off the electromagnetic waves at the image end of the initial leakage of electromagnetic waves, the image end of the cathode ray tube is wrapped with an image, and then the inside is completely wrapped with a full mask cover. The mask structure of this structure is due to Multiple screws are used in the connection, which takes a long time to operate and is cumbersome

[0009] In addition, there is a full-shield cover that can shield the entire interior of the cathode ray tube, which requires a high cost burden.

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