KR100656132B1 - Deflection yoke and method for manufacturing the same - Google Patents

Abstract

(Problem) Provides deflection yoke that can correct ring reversal trimelemma and suppress ringing.

(Solution means) A pair of horizontal deflection coils 1 and a pair of toroidal vertical deflection coils 2 wound around the annular core 3 are provided, The vertical deflection coil 2 has a first coil 5 for generating a barrel magnetic field and a second coil 6 for generating a pincushion magnetic field, and the second coil and two diodes connected in parallel with each other in reverse polarity ( 11) connected in series, and the first coil, the second coil and the diode are connected in parallel, and a predetermined range E2 including the center of the winding range of the first coil is wound more coarsely than both ends E1 of the first coil. In this sparse winding range, the second coil is wound on the first coil.

Deflection yoke, deflection coil, coarse winding range, first coil, second coil

Description

Deflection yoke and its manufacturing method {DEFLECTION YOKE AND METHOD FOR MANUFACTURING THE SAME}

1 is a cross-sectional view in an embodiment of a deflection yoke of the present invention.

2 is a circuit diagram for explaining a circuit mounted on an embodiment of the deflection yoke of the present invention.

3 is a first diagram illustrating an embodiment of a method of manufacturing a deflection yoke of the present invention.

4 is a second view for explaining an embodiment of the method for producing a deflection yoke of the present invention.

5 is a third diagram illustrating an embodiment of a method for manufacturing a deflection yoke of the present invention.

6 is a fourth view for explaining an embodiment of a method for manufacturing a deflection yoke of the present invention.

7 is a fifth view for explaining an embodiment of the method for manufacturing a deflection yoke of the present invention.

8 is a sixth view for explaining an embodiment of a method for manufacturing a deflection yoke of the present invention.

9 is a seventh view for explaining an embodiment of the method for manufacturing a deflection yoke of the present invention.

10 is an eighth view for explaining an embodiment of a method for manufacturing a deflection yoke of the present invention.

11 is a ninth view for explaining an embodiment of a method for manufacturing a deflection yoke of the present invention.

12 is an external perspective view showing an embodiment of a deflection yoke of the present invention.

FIG. 13 is a diagram for explaining an example of a coil having a roughly wound part. FIG.

14 is a diagram for explaining induced voltage in the embodiment of the deflection yoke of the present invention.

15 is a cross-sectional view illustrating a conventional deflection yoke.

16 is a schematic cross-sectional view illustrating a vertical deflection coil in a conventional deflection yoke.

17 illustrates ringing.

18 is a diagram illustrating an induced voltage in a conventional deflection yoke.

※ Description of the major symbols in the drawings ※

1: horizontal deflection coil 2: vertical deflection coil

3, 3a: core 4: separator

4A: Neck portion 5: Barrel magnetic field generating coil (B coil)

6: Pincushion magnetic field generating coil (PC coil)

5s, 6s: winding start line 5f, 6f: winding end line

11 diode 12 circuit

13: substrate 50: deflection yoke

BS1 to BSn, PCS: winding start point BF1 to BFn, PCF: winding end point

BTa, BTb: Points E1 to E4: Range

E2: Coarse winding range L1, L3: Return line

L2: lead wire L4: jumper wire

n, m: number of laminated turns X: horizontal axis

θ1 to θ3 angle

The present invention relates to a deflection yoke mounted on a color cathode ray tube equipped with an inline electron gun, and a manufacturing method thereof.

As a deflection yoke mounted on a color cathode ray tube with an inline electron gun, there is a deflection yoke described in Japanese Patent Laid-Open No. 1-225045, which is configured to correct so-called inverted trilemma occurring on the screen surface. .

The deflection yoke includes a pair of coils each of which a pair of vertical deflection coils is wound into a pincushion magnetic field generating coil (hereinafter referred to as a PC coil) and a barrel magnetic field generating coil (hereinafter referred to as a B coil). Two sets were provided and two PC coils and two diodes connected in parallel in reverse polarity are connected in series.

In particular, in the case of a saddle-toroid type deflection yoke (hereinafter referred to as ST deflection yoke) in which the horizontal deflection coil is a saddle (saddle) coil and the vertical deflection coil is composed of a troidal coil, this vertical deflection coil is shown in Fig. 15 ( (Corresponding to FIG. 6 of Japanese Patent Laid-Open No. 1-225045), the order of the B coil 145, the PC coil 146, and the B coil 145 along the circumferential direction with respect to the core 130. It is wound up.

In this figure, the separator 104 which supports it inside the core 130 and the horizontal deflection coil 144 inside it are shown together.

The B coil 145 and the PC coil 146 wound on the core 130 are divided by the intermediate tabs 148 and 147 formed at the intermediate position of the portion wound on the troidal, and the intermediate tab ( 148, 147).

Specifically, the B coil 145 is connected by the intermediate tab 148 and the lead 149 drawn out from both ends of the B coil 145, and the PC coil 146 is connected by the intermediate tab 147. (Lead 149 is omitted in Fig. 6 of Japanese Patent Laid-Open No. 1-225045).

However, it is widely known that the vertical deflection coils in the ST type deflection yoke are wound by laminating in multiple layers (for example, JP-A-7-249386 and JP-A-5-325830). By this, the characteristic required as a deflection yoke is secured.

An example in the case where the vertical deflection coil 102 is laminated in multiple layers and wound is shown in FIG. 16.

This figure is typical sectional drawing, and the cross section of the electric wire of the B coil 145 is shown by the white circle, and the cross section of the electric wire of the PC coil 146 is shown by the black circle. Moreover, the winding start line of each coil 145,146 is made into code | symbol S, and the winding end line is shown to code | symbol F. As shown in FIG. In addition, the winding cross section inside the core 130 is abbreviate | omitted.

In this figure, when the vertical deflection coils 102 are laminated and wound in a plurality of layers, the PC coil 146 and the two B coils 145 are laminated and wound independently of the core 130, respectively, and the intermediate tabs 147, It is understood that 148 should be formed. In other words, when the intermediate tabs 147 and 148 are formed, at least the B coils 145 must be divided into two, and each of them must be laminated and wound in a plurality of layers independently.                         

However, this winding method has a problem that a bad phenomenon called ringing becomes remarkable.

This ringing is a phenomenon in which periodical light streaks 202 occur at the left end on the screen surface 201 as shown in FIG. 17 due to the vibration of the bright lines on the screen surface. The cause of this occurrence will be described.

As the magnetic field generated from the horizontal deflection coil 144 (see FIG. 15) disposed inside the core 130 passes through the core 130, an induced voltage of the horizontal deflection cycle is generated in the vertical deflection coil 102. .

As the induced voltage is charged and discharged to the distribution capacitance between the lines of the vertical deflection coil 102, a vibration current flows, and a ringing magnetic field is formed by the current, and raster ringing occurs. In particular, the occurrence is prominent at the left end of the screen immediately after the horizontal retrace period where the frequency component of the horizontal deflection current is high.

This will be described in detail with reference to FIG. 18.

The broken arrow 701 indicates the direction of the horizontal deflection magnetic field when the screen is left deflected inside the core 130.

The B coil 145-L is wound from the electric wire 12 to the electric wire 11 from the start S-side intermediate tab 148 as the first layer, and then from the electric wire 22 to the electric wire 21 as the second layer. Furthermore, it is wound by the electric wire 31 from the electric wire 32 as the 3rd layer, and is extended to the terminal F side middle tab 149.

On the other hand, the B coil 145-R is wound from the electric wire 14 to the electric wire 13 as the first layer from the start S-side intermediate tab 149, and then the electric wire 23 from the electric wire 24 as the second layer. ), The third layer is wound from the electric wire 34 to the electric wire 33, and extends to the end F-side intermediate tab 148.

At this time, for an induced voltage generated in the B coil 145-L (left coil in the drawing), the potential of the winding end line 149 is set to 0 (zero) and the induced voltage per layer (that is, the wire 31 ~32) between the wires (21-22) between the wires (11-12), when the induced voltage between each) to V _C, the potential of the third layer of wires 32 and the second-layer wire (21) of the coins Back + and V _C, and the potential of the second layer of the electric wire 22 and the first-layer wire 11 of the coin over 2V + _C, it is the potential of the first-layer wires (12) _C + 3V.

Similarly, with respect to the induced voltage generated in the B coil 145-R (right coil in the drawing), if the potential of the winding start line 149 is set to 0 (zero) and the induced voltage per layer is set to V _C , The electric potential of the electric wire 13 of the 1st layer and the electric wire 24 of the 2nd layer is + V _C on the coin, and the electric potential of the electric wire 23 of the 2nd layer and the electric wire 34 of the 3rd layer is + 2V _C , and the electric wire of the 3rd layer The potential of (33) becomes + 3V _C.

Therefore, a potential difference of V _C was generated between adjacent wires between each layer, and the distribution capacity between lines increased, resulting in significant ringing.

That is, when the winding is divided into the PC coil 146 and the two B coil 145 to correct the inverted trimmer, there is a problem that ringing accompanying the increase in the distribution capacity of the B coil 145 occurs remarkably. To solve this, deflection yoke was required.

It is therefore an object of the present invention to provide a deflection yoke and a method of manufacturing the same, capable of correcting an inverted trimmer and suppressing ringing.

In order to solve the said subject, this invention has the following structures as a means.

That is, the invention according to claim 1 includes a pair of saddle-shaped horizontal deflection coils 1, an annular core 3, and a pair of toroidal vertical deflection coils 2 wound around the core 3. The vertical deflection coil (2) has a first coil (5) for generating a barrel magnetic field and a second coil (6) for generating a pincushion magnetic field, and is parallel to the second coil (6) in reverse polarity with each other. In a deflection yoke formed by connecting two diodes 11 connected in series and connecting the first coil 5, the second coil 6, and the diode 11 in parallel,

Coarse winding in which the predetermined range including the center of the electric wire winding ranges E1, E2, E1 along the core 3 of the first coil 5 is coarsely wound than both end sides of the electric wire winding ranges E1, E2, E1. It is a deflection yoke 50 characterized by setting it as the range E2 and winding the said 2nd coil 6 on the said 1st coil 5 in the rough coarse winding range E2.

The invention according to claim 2, wherein the first coil 5 is formed by winding a wire in a plurality of layers, and is generated by a horizontal deflection magnetic field 701 from the saddle-shaped horizontal deflection coil 1, The deflection yoke according to claim 1, wherein the induced voltages of the electric wires 12, 21, 31 (12, 22, 32) adjacent between the layers are approximately equal to zero (0, V _C ). 50).

Moreover, this invention has the following procedures as a means.

That is, the invention which concerns on Claim 2 is the 1st coil winding process which winds up the said 1st coil 5 to the said core 3 continuously so that the said predetermined range E2 may become coarse, and the said of about the said predetermined range E2 It is a manufacturing method of the deflection yoke which manufactures the deflection yoke 50 of Claim 1 or 2 which has a 2nd coil winding process which winds the said 2nd coil 6 on the 1st coil 5. .

Best Mode for Carrying Out the Invention

Embodiment of this invention is described using FIG. 1 thru | or FIG. 14 by a preferable Example.

1 is a cross-sectional view in an embodiment of a deflection yoke of the present invention.

2 is a diagram for explaining a circuit mounted on an embodiment of the deflection yoke of the present invention.

3 is a first diagram illustrating an embodiment of a method of manufacturing a deflection yoke of the present invention.

4 is a second diagram for explaining an embodiment of the method for manufacturing a deflection yoke of the present invention.

5 is a third view for explaining an embodiment of the method for manufacturing a deflection yoke of the present invention.

6 is a fourth diagram for explaining an embodiment of the method for manufacturing a deflection yoke of the present invention.

7 is a fifth view for explaining an embodiment of the manufacturing method of the deflection yoke of the present invention.

8 is a sixth view for explaining an embodiment of the manufacturing method of the deflection yoke of the present invention.

9 is a seventh view for explaining an embodiment of the method for manufacturing a deflection yoke of the present invention.

10 is an eighth view for explaining an embodiment of a method for manufacturing a deflection yoke of the present invention.

11 is a ninth view for explaining an embodiment of a method for manufacturing a deflection yoke of the present invention.

12 is an external perspective view showing an embodiment of a deflection yoke of the present invention.

It is a figure explaining an example of the coil which has a roughly wound part.

14 is a diagram for explaining induced voltage in the embodiment of the deflection yoke of the present invention.

12 (A) is a schematic perspective view of the deflection yoke 50 of the embodiment, and FIG. 12 (B) is a schematic side view.

In these figures, this deflection yoke 50 has a pair of saddle-shaped horizontal deflection coils 1, 1, an annular core 3, and a pair of toroidal vertical deflection coils wound around the core 3. (2, 2), the funnel-shaped separator 4 which insulates and holds the horizontal deflection coil 1 and the core 3 inward and outward, respectively, and the board | substrate 13 which has the circuit 12 mentioned later. Doing.

A neck portion 4A is formed at an end (right side in the drawing) of the rear side of the separator 4, and the neck portion 4A is tightly fastened to the neck portion of the cathode ray tube (not shown), so that the deflection yoke 50 is a cathode ray tube. Is mounted on.

The pair of vertical deflection coils 2 and 2 includes two sets of pairs of coils each consisting of a PC coil 6 and a B coil 5, and the PC coil 6 and the B coil 5 Is connected like the circuit 12 shown in FIG.

That is, two diodes 11 and 11 connected in parallel with the PC coils 6 and 6 in reverse polarity are connected in series, and in series with the PC coils 6 and 6 and diodes 11 and 11 connected in series. The connected B coils 5 and 5 are connected in parallel.

In this circuit 12, in parallel with each coil, a damping resistor for damping both ends of the coil is connected, and at the same time, a volume 12VR for adjusting the current ratio flowing through each of the B coils 5 and 5 is provided. ) Is connected. By adjusting the current ratio, the so-called Yv misconvergence on the screen surface can be corrected.

In parallel with the pair of diodes 11, a resistor 12RD for setting the timing at which the diode is switched on is connected.

Therefore, in this circuit 12, when the value of the vertical deflection current flowing through the circuit reaches a predetermined value, one diode 11 is turned on, and the value of the current flowing in the B coils 5 and 5 is reduced, so that the PC coils 6 and 6 are reduced. ) Is configured to increase the current value.

As a result, the magnetic field in the upper and lower regions of the screen surface becomes a pin cushion, and the inverted trimmer can be corrected.

Next, the pair of vertical deflection coils 2 wound on the annular core 3 described above will be described in detail with reference to FIG. 1.

FIG. 1 is a cross-sectional view taken along the line D-D in FIG. 12B, in which the separator 4 and the horizontal deflection coil 1 are omitted. The annular core 3 is divided up and down in this figure, and coils are wound around each one, and the pair of vertical deflection coils 2 are point symmetrical.

Therefore, in the following description, the upper vertical deflection coil 2 is demonstrated as a representative.

This vertical deflection coil 2 is the B coil 5 described above, that is, the coil for barrel magnetic field generation (hereinafter referred to as B coil 5), and the PC coil 6 described above, that is, the pincushion magnetic field generation. And a coil 6 (hereinafter referred to as a PC coil 6).

This figure shows the wire cross section of the B coil 5 as a white circle, the wire cross section of the PC coil 6 to a black circle, and the winding start line of each coil 5 and 6 as code | symbol 5S and 6S, End lines are denoted by 5f and 6f.

When the horizontal axis X is 0 °, the B coil 5 is tightly wound in the range E1 measured from the horizontal axis X with respect to the core 3 from the angle θ1 or more and less than the angle θ2, and the range E2 or more than the angle θ2. Esau is loosely wounded.

The PC coil 6 is tightly wound on the B coil 5 in the range E3 which is measured from the horizontal axis X and is angle θ2 or more and less than the angle θ3, and is coarsely wound in the range E4 of the angle θ3 or more.

The term "tightly wound" as used herein means that the adjacent windings are wound to be aligned so as to substantially contact each other, and "coarse winding" means that the adjacent windings are separated and wound.

Therefore, "coarse winding" includes, for example, winding such as a jumper wire L4 in the range E2 in FIG. 13. FIG. 13: is an example which wound up the range E2 of the B coil 5 coarsely.

Returning to FIG. 1, the winding start line 5s and the winding end line 5f are drawn out from the B coil 5, and the winding starting line 6s and the winding end line () are drawn from the PC coil 6. 6f) is withdrawn. These winding start lines 5s and 6s and the winding end lines 5f and 6f are connected as shown in FIG. 2 to constitute the circuit 12.

In this embodiment, both the B coil 5 and the PC coil 6 are wound in three layers.

For example, in the B coil 5, it winds up from the 1st-layer winding start point BS1 in the left side of the figure to the arrow TR direction (clockwise) of a figure, and wind-up end point BF1 of the 1st layer (right side of a figure) It winds up to return to the 2nd-layer winding start point (BS2; left side of a figure) from the.

This winding direction is the same in each layer, and the same also about the PC coil 6.

The return line here is abbreviate | omitted in this figure, The detail is mentioned later.

In this way, the B coil 5 is wound as one coil which does not have an intermediate tab and is not divided into a plurality of coils. The induced voltage in this B coil 5 is demonstrated in FIG.

In this figure, the broken arrow 701 indicates the direction of the horizontal deflection magnetic field inside the core 3 when the screen screen is left deflected.

About the induced voltage generated in the B coil 5 in that state, when the potential of the winding start line 5s is set to reference zero (zero) and the induced voltage per layer in the range E1 is V _C , the first layer is The electric potential of the electric wire 11 of 0 is zero (zero), the electric potential of the electric wire 12 and the electric wire 13 is + V _C on the coin, and the electric wire 14 becomes zero (zero).

The electric wire 21 of the 2nd layer is 0 (zero) on the coin 14 and the electric wire of the 1st layer, the electric potential of the electric wire 22 and the electric wire 23 is + V _{C on the} coin, and the electric wire 24 is 0 ( Zero).

Similarly, the electric potential of the electric wire 31 of the 3rd layer is 0 (zero), the electric potential of the electric wire 32 and the electric wire 33 is + V _C on the coin, and the electric potential of the electric wire 34 becomes zero.

That is, since the potential distribution for each layer is the same, the space between adjacent wires between each layer is approximately coin. As a result, the line distribution capacity is very small, and the amount of ringing is very small.

Moreover, when winding the B coil 5 to the annular core 3, the winding of the predetermined range E2 of the B coil 5 is made to be coarser than the winding of the other range E1, and on the coarsely wound predetermined range E2. The present inventors found that by winding the PC coil 6 overlapping, ringing by mutual induction is much smaller than in the case where the B coil and the PC coil are divided and parallel wound (arranged) along the surface of the core as in the related art. It was.

Moreover, as a result of earnestly examining, the inventors discovered about the preferable range of angle (theta) 2 which prescribes the predetermined range E1 mentioned above.

In other words, when the angle θ2 is in the range of 50 ° ± 5 ° with the horizontal axis X as 0 °, the occurrence of ringing can be significantly suppressed, and the ringing can be minimized by setting the angle θ2 to 50 ° to minimize this. You can do

As described above, according to this embodiment, the ringing occurrence due to magnetic induction is very small and the ringing occurrence due to mutual induction is very small, so that the ringing occurrence can be reduced while correcting the inverted trimmer.

<Production method>

Next, a winding method for winding the vertical deflection coil 2 of the above-described embodiment will be described with reference to FIGS. 3 to 11.

3 to 11 are views of the annular core 3 seen from the neck portion 4A (see FIG. 12) side of the deflection yoke 50. The winding about the annular core 3 is performed by the process shown below about the core 3a which divided the annular core 3 in half. In each figure, the front end side (winding side from this) of the electric wire to be wound is shown by the arrow.

(Step A) <See FIG. 3>

One side (left side of FIG. 3) of the core 3a is made into the start line 5s, and the electric wire is wound clockwise from here.

At this time, the area E1 from the horizontal axis X (0 °) to the point BTa of the predetermined angle θ2 to the point BTa of the predetermined angle θ2 from the horizontal axis X (0 °) is densely wound, and the area E2 of the angle θ2 or more (between the points BTa-point BTb) Is wound more coarsely than the area E1.

(Step B) <See FIG. 4>

When the electric wire is wound up to the position BF1 of the predetermined angle θ1 on the other side (right side in FIG. 4) of the core 3a, the electric wire is returned to the position BS2 of the second layer at the angle θ1 on one side. At this time, the electric wire between the point BF1 and the point BS1 becomes a return line L1 along the core surface.

(Step C) <See FIG. 5>

(Step A) and (Step B) are repeated, and the electric wire is wound until the predetermined lamination number n is reached. As a result, the B coil 5 is formed.

(Step D) <See FIG. 6>

After the process C which wound the predetermined | prescribed laminated number, the electric wire is extended out at the winding end position BFn of angle (theta) 1, and it is set as the lead wire L2. Since this lead wire L2 continues to wind the PC coil 6, it does not cut | disconnect here.

(Step E) <See FIG. 6>

Loosen the lead wire L2 and return to the point BTa. Although this point BTa is also the winding start point PCS of the PC coil 6, both points should just match.

(Step F) <See FIG. 7, FIG. 8>

Wind the wire from point PCS clockwise to point PCF approximately equal to point BTb. In this embodiment, the electric wire is wound up coarsened in the center range E4.

This winding is performed so that it may be laminated | stacked on the part of range E2 of the B coil 5 wound previously.

In the figure after FIG. 7, the part by which the B coil 5 was wound tightly is shown by hatching, and the wire of the part wound roughly is abbreviate | omitted.

(Step G) <See Figs. 8 and 9>

Return the wire from point PCF back to point PCS. At this time, the electric wire returned from the point PCF to the point PCS becomes the return line L3 passing through the outer side of the B coil 5.

(Step H) <See FIG. 10>

(Step F) and (Step G) are repeated, and the electric wire is wound until it becomes the predetermined | prescribed laminated number m. As a result, the PC coil 6 is formed. When the electric wire is wound by m layers, the electric wire is taken out from the point PCF.

(Step I) <See FIG. 11>

The lead wire L2 drawn out in the step D is cut and divided into a line 6s, which is a start line on the PC coil 6 side, and a line 5f, which is an end line on the B coil 5 side. And these wires 6s and 5f, the winding start line 5s in (process A), and the wire 6f drawn out in (process H) are terminated as a lead of each coil.

Since the vertical deflection coils (B coil 5 and PC coil 6; 2) are formed by the above procedure, the four leads obtained by this method are connected as in the circuit 12 shown in FIG. 50) may be prepared.

According to the method of the present embodiment, since the B coil 5 of the vertical deflection coil 2 is not divided into a plurality of coils, magnetic induction is very small even when the coils are wound in a plurality of layers.

Therefore, even if the leakage magnetic field from the horizontal deflection coil 1 acts on the induced electromotive force by the magnetic induction, the induced electromotive force is minute, so that the amount of ringing generated can be made very small.

On the other hand, the B coil 5 is wound around the core 3a first, the predetermined range E2 of the B coil 5 is wound more coarsely than the other range E1, and the PC coil 6 is superimposed on the predetermined range E1. By winding, the ringing by mutual induction becomes much smaller compared with the case where the conventional B coil 5 and the PC coil 6 are divided and wound so that they are lined up along the surface of the core 3a.

It is needless to say that the embodiment of the present invention is not limited to the above-described configuration and procedures, and can be carried out in an appropriate modification without departing from the gist of the present invention.

The lamination winding number n of the B coil 5 and the lamination winding number m of the PC coil 6 can be set freely according to the characteristic of a deflection yoke.

Moreover, angle (theta) 1 and angle (theta) 2 which determine the range E1 which dwinds the B coil 5 can also be set freely. However, as above-mentioned, it is preferable to set angle (theta) 2 within the range of +/- 5 degree with respect to 50 degree from the horizontal axis X, and also it is most preferable to set it as 50 degree.

Moreover, the space | interval of the adjacent windings in the case of winding the B coil 5 coarsely can be set suitably.

Moreover, although the example which densely wound the range E1 in the B coil 5 was demonstrated, this range can be wound up coarsely and it can also be made to wind up the range E2 more coarsely than the range E1.

According to the present invention, the ringing can be suppressed along with the correction of the inverted trimmer.

Claims (3)

A pair of saddle-shaped horizontal deflection coils, an annular core and a pair of toroidal vertical deflection coils wound around the core, The vertical deflection coil is made by having a first coil for generating a barrel magnetic field and a second coil for generating a pincushion magnetic field, A deflection yoke in which the second coil and two diodes connected in parallel with each other in reverse polarity are connected in series, and the first coil, the second coil, and the diode are connected in parallel. The predetermined range including the center of the electric wire winding range along the core of the first coil is set to the coarse winding range coarsely wound than both end sides of the electric wire winding range, and the second coil is selected from the coarse winding range. A deflection yoke, which is formed by winding on a first coil. The method of claim 1, The first coil is made of a wire wound in a plurality of layers, A deflection yoke, wherein the induced voltage of an electric wire adjacent between the layers, generated by a horizontal deflection magnetic field from the saddle-shaped horizontal deflection coil, is coincident. In the method of manufacturing the deflection yoke according to claim 1, A first coil winding step of winding the first coil continuously on the core such that the predetermined range is sparse; And And a second coil winding step of winding the second coil on the first coil in the predetermined range.

Images