KR20000051550A - Deflection unit for displayer - Google Patents

Abstract

PURPOSE: A deflection apparatus of a cathode ray tube(CRT) is provided to improve image quality through a stable deflecting operation of electron beams and to prevent the damage to the neck of the CRT, the damage being generated in the course of tightening. CONSTITUTION: A deflection apparatus of a cathode ray tube(CRT) comprises a CRT(100), a deflection element(200) and a tightening element. The CRT is divided by a screen surface applied with a fluorescent layer and an electron gun(121). The deflection element deflects an electron beam radiated from the electron gun, equipped with a cylindrical neck part(510) inserted into the neck of the CRT. The tightening element tightens the neck part of the deflection element to an electron gun part(12) of the CRT while maintaining a constant ring-shape body(300), inserted into the neck part of the deflection element.

Description

Deflection unit of cathode ray tube {Deflection unit for displayer}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to cathode ray tubes (CRTs) and, more particularly, to deflecting electron beams scanned from an electron gun of a cathode ray tube.

1 and 2 illustrate a TV receiver which is most widely used among display apparatuses.

This is largely classified into a cathode ray tube 1, a deflection means, and a fastening ring. The cathode ray tube 1 is formed of glass, and a screen 2 coated with a fluorescent film (not shown) is located on the front side, and a rear side. The neck 4 in which the electron gun 3 is built is located.

The neck 4 of the cathode ray tube 1 is provided with deflection means for precisely focusing the electron beam scanned from the electron gun 3 onto the fluorescent film coated on the screen 2.

The deflection means includes a deflection yoke 5 inserted into the outer circumferential surface of the neck 4 and a convergence yoke 6 inserted into the rear neck 4 of the deflection yoke 5.

At this time, the deflection yoke 5 is applied to the screen 2 of the cathode ray tube 1 by deflecting the electron beam scanned from the electron gun 3 in the vertical and horizontal directions through the vertical and horizontal deflection coils wound on the inner and outer circumferential surfaces thereof. The electron beam is focused on the film so as to reproduce the image.

The convergence yoke 6 also serves to perform the convergence adjustment to focus the electron beam scanned from the electron gun 3 precisely in the center of the screen 2.

On the other hand, these deflection means, i.e., the deflection yoke 5 and the convergence yoke 6, must be held firmly on the neck 4 of the cathode ray tube 1.

To this end, the deflection yoke 5 and the convergence yoke 6 can be fixed to the neck 4 of the cathode ray tube 1 as shown in FIGS. 1 and 2. ) Is provided.

That is, each of the deflection yoke 5 and the convergence yoke 6 constituting the aforementioned deflection means are provided with neck portions 5a and 6a which can be inserted into the neck 4 of the cathode ray tube 1. The deflection yoke 5 and the convergence yoke 6 are connected to the neck 4 of the cathode ray tube 1 by fastening the yoke clamp 7 on the neck portions 5a and 6a through the set screw S. To fix the position.

However, in such a deflection apparatus of the conventional display, the neck 4 of the cathode ray tube 1 is provided with the deflection yoke 5 and the convergence yoke 6 which constitute the deflection means through the tightening ring, that is, the yoke clamp 7. In the process of fixing the position, the intensive load is partially applied to the neck 4 of the cathode ray tube 1, and thus, the neck 4 of the cathode ray tube 1 formed of glass is damaged. .

The cause of such a problem is that when the clamping force is applied to the yoke clamp 7 through the fixing screw S, the yoke clamp 7 is tightened uniformly as a whole, and does not always form a constant roundness. This is because it is tightened in this crushed form.

The present invention has been created to solve such a conventional problem, the deflection means can be accurately fixed to the neck of the cathode ray tube, it is possible to improve the image quality through the stable deflection operation of the electron beam, tightening process It is an object of the present invention to provide a deflection device of a cathode ray tube that can prevent the neck damage of the cathode ray tube that may occur in advance.

1 is a schematic side view showing a deflection device of a conventional cathode ray tube;

2 is an essential part extract front view of a deflection device of a conventional cathode ray tube;

Figure 3 and Figure 4 is a side view showing an embodiment of a deflector of a cathode ray tube according to the present invention,

5 is a perspective view showing an extract of the tightening means,

6 and 7 are perspective views showing other embodiments of the present invention.

<Description of the symbols for the main parts of the drawings>

100: cathode ray tube 110: screen surface

120: electron gun section 121: electron gun

200: deflection means 210,400: deflection yoke

410: coil separator 420: horizontal deflection coil

430: vertical deflection coil 440: ferrite core

300: annular body 310,320: coupling piece

311 through hole 321 screw hole

330: screw 340, 350: elastic piece

500: convergence York 510: neck

520: magnet ring

In order to achieve the above object, the deflector of the display device according to the present invention comprises: a cathode ray tube partitioned by a screen surface coated with a fluorescent film and an electron gun part in which an electron gun is embedded; Deflecting means having a cylindrical neck portion inserted into the neck of said cathode ray tube and deflecting an electron beam scanned from said electron gun; It is inserted into the neck portion of the deflection means, the tightening means for pressing the neck portion of the deflection means to the electron gun of the cathode ray tube while maintaining a constant round shape.

One preferred feature of the present invention includes a cathode ray tube partitioned by a screen surface coated with a fluorescent film and an electron gun unit in which an electron gun is embedded; A deflection yoke having a cylindrical neck portion inserted into the neck of the cathode ray tube and deflecting the electron beam scanned from the electron gun in a vertical and horizontal direction; It is inserted into the neck portion of the deflection yoke, the tightening means for pressing the neck portion of the deflection yoke to the electron gun portion of the cathode ray tube while maintaining a constant round shape.

Another desirable feature of the present invention is a cathode ray tube partitioned by a fluorescent film-coated screen surface and an electron gun portion in which an electron gun is embedded; A convergence yoke having a cylindrical neck portion inserted into the neck of the cathode ray tube, and performing convergence so that the electron beam scanned from the electron gun is concentrated in the center of the screen of the cathode ray tube; And a fastening means inserted into the neck portion of the convergence yoke and pressing the neck portion of the convergence yoke to the electron gun portion of the cathode ray tube while maintaining a constant round shape.

Such a characteristic configuration and the resulting effects of the present invention will become more apparent from the following detailed description of the invention with reference to the accompanying drawings.

3 and 4 are side views showing one embodiment of a deflection apparatus of a cathode ray tube according to the present invention, Figure 5 is a perspective view showing an extract of the tightening means.

6 and 7 are perspective views showing other embodiments of the present invention.

First, a first embodiment of the present invention will be described with reference to FIGS. 3 to 5.

As shown therein, the deflection device of the cathode ray tube according to the present invention is largely classified into the cathode ray tube 100, the deflection means 200, and the tightening means.

The cathode ray tube 100 includes a screen surface 110 having a fluorescent film (not shown) coated on its inner surface, and an electron gun portion 120 having an electron gun 121 for scanning an electron beam.

The deflection means 200 is provided in the electron gun portion 120 of the cathode ray tube 100 and serves to deflect the electron beam scanned from the electron gun 121 in the vertical and horizontal directions and to the center of the screen surface.

As the deflection means 200, a deflection yoke 210 for deflecting the electron beam in the vertical and horizontal directions as shown in FIG. 3 is employed, or as shown in FIG. 4, a screen of the cathode ray tube 100 of the electron beam. A convergence yoke 220 may be used that performs convergence to center on the face 110.

First, referring to FIG. 3, the deflection yoke 210 is used as the deflection means 100. The deflection yoke 210 includes a coil separator 211, and the coil separator 211 includes a cathode ray tube. A neck portion 212 coupled to the electron gun portion 120 of 100 is provided.

The inner and outer circumferential surfaces of the coil separator 211 are provided with a horizontal deflection coil 213 and a vertical deflection coil 214 for deflecting the electron beam in the horizontal and vertical directions. The ferrite core 215 is used to reinforce the vertical magnetic field. Prepared.

Tightening means is coupled to the neck portion 212 of the coil separator 211 to press-support the neck portion 212 to the electron gun portion 120.

As shown in FIG. 4, the convergence yoke 220 includes a neck portion 221 coupled to the electron gun portion 120 of the cathode ray tube 100, and the neck portion 221 includes a plurality of magnet rings 222. ) Are arranged at predetermined intervals.

The tightening means is coupled to the neck portion 221 of the convergence yoke 220 so as to be pressed against the electron gun portion 120.

Tightening means for pressing and supporting the neck portions 212 and 221 of the deflection yoke 210 and the convergence yoke 220 to the electron gun portion 120 of the cathode ray tube 100 always maintains the source of the neck portions 212 and 221. ) Acts as a pressure supporting the electron gun unit 120, and the detailed structure thereof, as shown in Figure 5, is provided with an annular body 300 is open at one side.

From the open both ends of the annular body 300, the coupling pieces 310, 320 are formed in parallel in the vertical direction.

A through hole 311 is formed in the coupling piece 310 on one side, and a screw hole 321 is formed in the corresponding coupling piece 320 on the other side.

The screw 330 is fastened to the coupling pieces 310 and 320. That is, the screw 330 is coupled to the screw hole 321 formed in the coupling piece 320 on the other side through the through hole 311 of the coupling piece 310, so that the coupling pieces 310 and 320 are rotated according to the rotation of the screw 330. ) Are tightened in the corresponding direction.

On the other hand, from the upper end of the coupling pieces 310 and 320, the elastic pieces 340 and 350 extend parallel to each other in the vertical direction in order to disperse the concentration of partial force generated in the process of tightening the annular body 300 through the screw 330. Is formed.

The elastic pieces 340 and 350 are formed to extend in a relatively small width compared to the width of the coupling pieces 310 and 320, and contact with each other in the process of tightening the annular body 300 through the tightening force through the screw 330, elastic deformation By causing the tightening force is to play a role to be distributed throughout the annular body (300).

In this case, the elastic pieces 340 and 350 are illustrated as extending in the vertical upper direction, but may be formed extending in the vertical lower direction.

In the deflection apparatus of the cathode ray tube according to the present invention having such a configuration, the neck portion 212,221 of the deflection means 200, for example, the deflection yoke 210 or the convergence yoke 220, has an electron gun portion of the cathode ray tube 100. Couple the fastening means to the neck portion (212, 221) in the state coupled to (120).

That is, the annular body 300 constituting the tightening means is coupled.

Then, the screw 330 is coupled to the screw hole 321 of the other coupling piece 320 through the through hole 311 formed in the coupling piece 310 on one side which extends from the opened both end portions of the annular body 300. Let's do it.

When the screw 330 is rotated in one direction, the annular body 300 is tightened in the direction in which the neck parts 212 and 221 are pressed toward the electron gun part 120, and are formed to extend from the coupling pieces 310 and 320 at some point in time. The elastic pieces 340 and 350 are in contact with each other.

In this state, when the pressing force is further applied to the annular body 300 through the screw 330, the elastic pieces 340 and 350 in contact with each other cause elastic deformation in the extending direction thereof, and thus the annular body 300 is It will disperse the intensive force applied to any part of it.

Therefore, the annular body 300 is to press the necks (212, 221) toward the electron gun section 120 while maintaining a constant roundness at all times to prevent damage to the electron gun section 120 due to the concentration of partial force.

6 shows a second embodiment of the present invention, in which the same parts as those of the embodiment of the present invention shown in FIGS.

This is largely divided into the cathode ray tube 100, the deflection yoke 400 and the tightening means.

The cathode ray tube 100 includes a screen surface 110 having a fluorescent film (not shown) coated on its inner surface, and an electron gun portion 120 having an electron gun 121 for scanning an electron beam.

The deflection yoke 400 has a coil separator 410 including a screen portion 411 coupled to the screen surface 110 of the cathode ray tube 100 and a neck portion 412 coupled to the electron gun portion 120. do.

The inner circumferential surface of the coil separator 410 is provided with a horizontal deflection coil 420 for deflecting the electron beam in the horizontal direction, and the outer deflection surface is provided with a vertical deflection coil 430 for deflecting the electron beam in the vertical direction.

In addition, to strengthen the vertical magnetic field, a ferrite core 440 is provided.

The tightening means is always coupled to the neck portion 412 of the coil separator 410 while maintaining a constant round and serves to press and support it to the electron gun portion 120 of the cathode ray tube 100.

Looking at the configuration of such a tightening means, as shown in Figure 5, one side is provided with an annular body 300 opened.

From the open both ends of the annular body 300, the coupling pieces 310, 320 are formed in parallel in the vertical direction.

A through hole 311 is formed in the coupling piece 310 on one side, and a screw hole 321 is formed in the corresponding coupling piece 320 on the other side.

The screw 330 is fastened to the coupling pieces 310 and 320. That is, the screw 330 is coupled to the screw hole 321 formed in the coupling piece 320 on the other side through the through hole 311 of the coupling piece 310, so that the coupling pieces 310 and 320 are rotated according to the rotation of the screw 330. ) Are tightened in the corresponding direction.

On the other hand, from the upper end of the coupling pieces 310 and 320, the elastic pieces 340 and 350 extend parallel to each other in the vertical direction in order to disperse the concentration of partial force generated in the process of tightening the annular body 300 through the screw 330. Is formed.

The elastic pieces 340 and 350 are formed to extend in a relatively small width compared to the width of the coupling pieces 310 and 320, and contact with each other in the process of tightening the annular body 300 through the tightening force through the screw 330, elastic deformation By causing the tightening force is to play a role to be distributed throughout the annular body (300).

In this case, the elastic pieces 340 and 350 are illustrated as extending in the vertical upper direction, but may be formed extending in the vertical lower direction.

In the second embodiment of the present invention having such a configuration, the deflection yoke 400 is stably coupled to the electron gun portion 120 of the cathode ray tube 100 by the same operation as the first embodiment.

7 shows a third embodiment of the present invention, which will be described with reference to FIGS. 3 to 5.

This is roughly divided into the cathode ray tube 100, the convergence yoke 500 and the tightening means.

The cathode ray tube 100 includes a screen surface 110 having a fluorescent film (not shown) coated on its inner surface, and an electron gun portion 120 having an electron gun 121 for scanning an electron beam.

The convergence yoke 500 includes a neck portion 510 coupled to the electron gun portion 120 of the cathode ray tube 100, and the neck portion 510 is provided with a magnet ring 520 at a predetermined interval.

The tightening means is coupled to the neck portion 510 of the convergence yoke 500 and serves to press and support it to the electron gun portion 120 of the cathode ray tube 100.

Looking at the detailed structure of such a tightening means, as shown in Figure 5, one side is provided with an annular body 300 is open.

From the open both ends of the annular body 300, the coupling pieces 310, 320 are formed in parallel in the vertical direction.

A through hole 311 is formed in the coupling piece 310 on one side, and a screw hole 321 is formed in the corresponding coupling piece 320 on the other side.

The screw 330 is fastened to the coupling pieces 310 and 320. That is, the screw 330 is coupled to the screw hole 321 formed in the coupling piece 320 on the other side through the through hole 311 of the coupling piece 310, so that the coupling pieces 310 and 320 are rotated according to the rotation of the screw 330. ) Are tightened in the corresponding direction.

On the other hand, from the upper end of the coupling pieces 310 and 320, the elastic pieces 340 and 350 extend parallel to each other in the vertical direction in order to disperse the concentration of partial force generated in the process of tightening the annular body 300 through the screw 330. Is formed.

The elastic pieces 340 and 350 are formed to extend in a relatively small width compared to the width of the coupling pieces 310 and 320, and contact with each other in the process of tightening the annular body 300 through the tightening force through the screw 330, elastic deformation By causing the tightening force is to play a role to be distributed throughout the annular body (300).

In this case, the elastic pieces 340 and 350 are illustrated as extending in the vertical upper direction, but may be formed extending in the vertical lower direction.

In the second embodiment of the present invention having such a configuration, the convergence yoke 400 is stably coupled to the electron gun 120 of the cathode ray tube 100 by the same operation as the first embodiment.

On the other hand, the above embodiment is only a description of the preferred embodiment of the present invention, the scope of application of the present invention is not limited to this, and can be changed as appropriate within the scope of the same idea. For example, the shape and structure of each component shown in the embodiment of the present invention can be modified.

According to the deflection apparatus of the cathode ray tube according to the present invention as described above, the deflection means, that is, the deflection yoke and the convergence yoke can be fixed to the electron gun portion of the cathode ray tube with a constant force.

At this time, especially in the process of applying tightening force through the tightening means, the annular body constituting the tightening means presses the neck portion of the deflection means to the electron gun of the cathode ray tube while maintaining a constant roundness. Damage to the electron gun can be prevented in advance.

Claims (8)

A cathode ray tube partitioned by a screen surface coated with a fluorescent film and an electron gun section in which an electron gun is embedded; Deflecting means having a cylindrical neck portion inserted into the neck of said cathode ray tube and deflecting an electron beam scanned from said electron gun; And a tightening means inserted into the neck portion of the deflection means and pressurizing the neck portion of the deflection means to the electron gun of the cathode ray tube while maintaining a constant circular shape. The electron beam deflecting device of a cathode ray tube according to claim 1, wherein said deflection means is a deflection yoke for deflecting the electron beam scanned from said electron gun vertically and horizontally. The electron beam deflecting device of a cathode ray tube according to claim 1, wherein said deflection means is a convergence yoke which performs convergence so that the electron beam scanned from said electron gun is concentrated at the center of the screen of said cathode ray tube. The method of claim 1, wherein the tightening means is inserted into the neck portion of the biasing means and the annular body of which one side is opened; A coupling piece which is formed to extend from both sides of the opened sides of the body, and has a through hole and a screw hole selectively provided at corresponding positions; A screw fastened to be screwed into the screw hole through the through hole of the coupling piece to impart a tightening force to the annular body; Cathode ray tube, characterized in that formed in parallel extending from the upper end of the coupling piece to a width relatively smaller than the width between the coupling pieces, selectively contacting to evenly distribute the tightening force by the screw to the entire portion of the annular body; Electron beam deflector. A cathode ray tube partitioned by a screen surface coated with a fluorescent film and an electron gun section in which an electron gun is embedded; A deflection yoke having a cylindrical neck portion inserted into the neck of the cathode ray tube and deflecting the electron beam scanned from the electron gun in a vertical and horizontal direction; And a tightening means inserted into the neck portion of the deflection yoke and pressurizing the neck portion of the deflection yoke to the electron gun of the cathode ray tube while maintaining a constant round shape. The method of claim 5, wherein the tightening means is inserted into the neck portion of the deflection yoke and the annular body of which one side is opened; A coupling piece which is formed to extend from both sides of the opened sides of the body, and has a through hole and a screw hole selectively provided at corresponding positions; A screw fastened to be screwed into the screw hole through the through hole of the coupling piece to impart a tightening force to the annular body; Cathode ray tube, characterized in that formed in parallel extending from the upper end of the coupling piece to a width relatively smaller than the width between the coupling pieces, selectively contacting to evenly distribute the tightening force by the screw to the entire portion of the annular body; Electron beam deflector. A cathode ray tube partitioned by a screen surface coated with a fluorescent film and an electron gun section in which an electron gun is embedded; A convergence yoke having a cylindrical neck portion inserted into the neck of the cathode ray tube, and performing convergence so that the electron beam scanned from the electron gun is concentrated in the center of the screen of the cathode ray tube; And a tightening means inserted into the neck portion of the convergence yoke and pressing the neck portion of the convergence yoke to the electron gun portion of the cathode ray tube while maintaining a constant round shape. The method of claim 7, wherein the tightening means, the annular body is inserted into the neck portion of the convergence yoke and one side is opened; A coupling piece which is formed to extend from both sides of the opened sides of the body, and has a through hole and a screw hole selectively provided at corresponding positions; A screw fastened to be screwed into the screw hole through the through hole of the coupling piece to impart a tightening force to the annular body; Cathode ray tube, characterized in that formed in parallel extending from the upper end of the coupling piece to a width relatively smaller than the width between the coupling pieces, selectively contacting to evenly distribute the tightening force by the screw to the entire portion of the annular body; Electron beam deflector.