Cathode ray tube

Abstract

A cathode ray tube comprising: a panel whose outer surface is substantially planar; a shadow mask mounted at a distance from the inner surface of the panel, having a plurality of holes for electron beams to pass through, and forming a pincushion shape in which the long and short sides of the shadow mask are recessed toward the inside; and a shadow mask frame for fixing and supporting the shadow mask in which the long and short sides of the shadow mask frame start from the end Inclined toward the center, this is to maintain a predetermined interval from the long and short sides of the shadow mask. Thereby, the strength of the shadow mask is increased, and the influence of the magnetic field is reduced, thus obtaining excellent performance.

Description

technical field [0001] The present invention relates to cathode ray tubes, and more particularly to cathode ray tubes capable of improved performance by optimizing the shape of the shadow mask and the shadow mask frame. Background technique [0002] A cathode ray tube is a device that converts electrical signals into electron beams and emits the electron beams to a fluorescent screen to generate images. Cathode ray tubes are widely used in conventional technology due to the ability to obtain good display quality at an affordable price. [0003] Now, a cathode ray tube will be explained with reference to the drawings. figure 1 is a schematic diagram illustrating an example of a conventional art cathode ray tube. like figure 1 As shown in , the cathode ray tube includes: a panel 201 made of front glass; a funnel-shaped device 202 made of rear glass engaged with the panel 201 for forming a vacuum space; a fluorescent screen 213, which is placed on the panel 201 and used to ...

AI Technical Summary

Problems solved by technology

However, in this case, the impact resistance and the anti-squeak characteristic of the shadow mask 208 cannot be fundamentally improved.

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