JPH06325703A - Picture tube device and its manufacture - Google Patents

Abstract

PURPOSE:To facilitate position regulation of a reflecting device easier in a picture tube device which dividing scans a phosphor screen by plural electron guns. CONSTITUTION:In this picture tube device, a phosphor screen 5 is formed along almost all the surface on the inner surface of a face plate 1. Funnels 4 are connected around opening holes 23 to cover the corresponding opening holes 23 respectively formed on the rear plates 3. Inside the necks 6 of the funnels 4, electron guns 7 to discharge electron beams to the phosphor device 10 are provided. Plural individual display devices 10 are installed to a single plate-form connecting member 11 through regulating members 19 as the individual regulating means. As a result, a deflecting device 12 as one deflecting means making plural individual deflecting devices 10 corresponding to plural individual electron guns 7 as a set is composed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a picture tube device in which a phosphor screen is divided into a plurality of regions and scanned by a plurality of electron beams, and a method of manufacturing the same.

[0002]

2. Description of the Related Art In recent years, various studies have been made on a high-resolution picture tube capable of supporting high-definition broadcasting or a high-resolution picture tube having a large screen associated with high-definition broadcasting. Generally, in order to achieve high resolution of the picture tube, the spot diameter of the electron beam on the phosphor screen must be reduced. On the other hand, conventionally, the electrode structure of the electron gun has been improved, or the electron gun itself has been increased in diameter and length, but sufficient results have not yet been obtained. The main reason for this is that as the tube becomes larger, the distance from the electron gun to the phosphor screen becomes longer and the magnification of the electron lens becomes too large. Therefore, in order to achieve high resolution, it is important to reduce the distance (depth) from the electron gun to the phosphor screen. Further, in this case, when the electron beam is deflected at a wide angle, the magnification difference between the center and the periphery of the screen increases. Therefore, wide-angle deflection is not a good idea for high resolution.

In order to solve such a problem, EP0
For the 471359A3, make the faceplate flat,
A cathode ray tube is shown in which a phosphor screen formed on the inner surface of the face plate is divided into a plurality of regions for scanning by electron beams emitted from a plurality of individual electron guns. In this cathode ray tube, in order to support the atmospheric pressure applied to the face plate, it is necessary to arrange a supporting means inside the cathode ray tube.

Even if the screen of the picture tube is integrated and the supporting means is arranged inside the cathode ray tube as described above, there still remains a problem in practical use. That is, when scanning is performed by dividing into a plurality of areas, a simple structure and method for obscuring adjacent screens, that is, connecting portions of adjacent areas are required.

More specifically, in the picture tube device having the above-described structure, the phosphor screen is divided into predetermined regions by using a plurality of independent electron guns and a plurality of electron beams emitted from the electron guns. A plurality of deflecting devices (individual deflecting devices) for scanning are provided. In this case, the number of individual electron guns and the number of individual deflection devices are the same. Therefore, in order to eliminate the connection part of the screens that are separately scanned, it is necessary to individually adjust the plurality of individual deflection devices. This adjustment is practically possible in the case of a small number of individual deflecting devices or in the case of a monochromatic picture tube which is relatively easy to adjust, but becomes extremely difficult as the number of individual deflecting devices increases. In addition, in the case of a color picture tube, in addition to the adjustment of the vertical, horizontal, and rotation of the image, color adjustment and centralized adjustment between multiple electron beams corresponding to each color are also necessary, and all individual deflecting devices are appropriate. It becomes extremely difficult to adjust to.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to receive an image by a method in which a phosphor screen is divided into a plurality of regions and scanned by a plurality of electron beams. (EN) A picture tube apparatus capable of easily adjusting the position of a deflecting device for deflecting an electron beam in a predetermined area with respect to a picture tube, and a manufacturing method thereof.

[0007]

In order to achieve the above object, a picture tube device according to the present invention has a plurality of individual electron guns and an electron beam emitted from each of the individual electron guns. In a picture tube device including a phosphor screen that is divided and scanned and a deflecting unit that deflects electron beams emitted from the plurality of individual electron guns, the deflecting unit corresponds to each of the individual electron guns. It is characterized in that it has a plurality of individual deflecting devices arranged in parallel and a connecting means for connecting these individual deflecting devices.

Further, in the picture tube device according to the present invention, the deflecting means has the adjusting means for adjusting the position of the individual deflecting device. Further, a vacuum envelope having a substantially rectangular first plate and a substantially rectangular second plate provided so as to face the first plate substantially in parallel, and a plurality of individual electron guns. And a phosphor screen formed on the inner surface of the first plate and divided into a plurality of regions to be scanned by an electron beam emitted from each of the individual electron guns, and emitted from the plurality of individual electron guns. In a picture tube device having a deflecting means for deflecting an electron beam, the deflecting means has a plurality of individual deflecting devices provided corresponding to the individual electron guns, and a connecting means for connecting the individual deflecting devices. In addition, a fixing means for fixing the deflecting means to the second plate is further provided.

Further, according to the present invention, the picture tube device is
A vacuum envelope having the phosphor screen and the electron gun is provided, and adjusting means for adjusting the position of the connecting means with respect to the vacuum envelope.

Further, according to the present invention, a plurality of individual electron guns, a phosphor screen which is divided into a plurality of regions and scanned by electron beams emitted from each of the individual electron guns, and the plurality of individual electron guns are provided. A method of manufacturing a picture tube device comprising a deflecting means for deflecting an electron beam emitted from a gun, the method comprising: fixing the plurality of individual deflecting devices to a connecting member in a predetermined positional relationship; and fixing the individual deflecting device. And the step of attaching the connected member to the vacuum envelope.

[0011]

According to the picture tube device constructed as described above,
By integrating the plurality of individual deflecting devices by connecting them by the connecting means, the plurality of individual deflecting devices can be simultaneously arranged at predetermined positions with respect to the plurality of electron guns. When it is necessary to adjust the position of each individual deflecting device with respect to each electron gun, the position can be adjusted by the adjusting means.

Further, by arranging the plurality of individual deflecting devices in a predetermined positional relationship by the connecting means in advance, it is not necessary to individually adjust the individual deflecting devices when mounting on the picture tube. Further, when adjustment is necessary, the positions of the plurality of individual deflection devices can be adjusted at the same time by adjusting the position of the connecting means by the adjusting means. Therefore, the adjustment of the deflection device with respect to the picture tube is greatly simplified.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 show a picture tube device according to an embodiment of the present invention. This picture tube device is provided with a vacuum envelope 30. The vacuum envelope 30 is bonded to the face plate 1 (first plate) made of a substantially rectangular flat glass and the peripheral edge of the face plate 1. ,
A side wall 2 extending substantially perpendicularly to the face plate 1, and a substantially rectangular flat glass rear plate 3 (second part) which is opposed to the face plate 2 via the side wall 2 and is joined in parallel therewith (second Plate) and this rear plate 3
A total of 2 bonded to each other, for example, 4 horizontal rows and 5 vertical rows
It has 0 funnels 4 and. Rear plate 3
A total of 20 openings 23, which are 4 rows in the horizontal direction and 5 rows in the vertical direction, are formed at predetermined intervals, and the funnels 4 are joined around the openings 23 so as to cover the corresponding openings 23. There is.

A phosphor screen 5 is formed on almost the entire inner surface of the face plate 1. Inside the neck 6 of each funnel 4, an electron gun 7 that emits an electron beam toward the phosphor screen 5 is arranged. A plurality of support rods 8 are provided as support means between the face plate 1 and the rear plate 3. These support rods 8 are for supporting the atmospheric pressure applied to the face plate 1 of the vacuum envelope 5, and each has a tip end portion (end portion on the phosphor screen 5 side) formed in a wedge shape. Also, multiple funnels 4
A plurality of individual deflection devices for deflecting the electron beams emitted from the individual electron guns 7 arranged in each net 6 are provided outside the
10 are arranged. In the case of a color picture tube device, generally, a shadow mask (not shown) is arranged inside the vacuum envelope 5 so as to closely face the phosphor screen 5.

As shown in FIGS. 2 and 3, the plurality of individual deflecting devices 10 are each an adjusting mechanism as an individual adjusting means.
It is attached to a single plate-shaped connecting member 11 via 19. As a result, a deflecting device 12 as one deflecting means, which includes a plurality of individual deflecting devices 10 corresponding to the plurality of individual electron guns 7 disposed in the necks 6 of the plurality of funnels 4 as one deflecting means.
Is configured.

Each individual deflection device 10 has a corresponding individual electron gun.
A pair of deflection coils 13 for deflecting the electron beam emitted from the device 7 in the horizontal and vertical directions, a core 14 made of a magnetic material, and a mold 15 holding the deflection coils 13 and 14 in a predetermined positional relationship. And are equipped with. The mold 15 has a frusto-conical shape, and a terminal block 16 for supplying a deflection current to each deflection coil 13 is provided on the outer side of the mold 15. In the case of a color picture tube device, each individual electron gun generally emits three electron beams.

The connecting member 11 is a rear plate of the vacuum envelope 30.
It is formed in a rectangular shape having substantially the same size as 3, and this connecting member is formed with 20 circular connecting portion openings 32 arranged in four rows in the horizontal direction and five rows in the vertical direction. These connecting portion openings 32 are formed so as to correspond to the arrangement positions of the funnels 4. Further, three screw holes 34 are formed in the connecting member 11 around the connecting portion openings 32. And
The connecting portion 11 is made of an electrically insulating material having no conductivity in order to suppress magnetic field interference between adjacent individual deflection devices 10 or loss due to eddy current.

Each adjusting mechanism 19 has an annular holding member 36,
The large-diameter side end of the mold 15 of the individual deflection device 10 is inserted into the holding member 36. A plurality of, for example, three screw holes 38 extending in the radial direction of the holding member are formed in the holding member 36 at equal intervals along the circumferential direction of the holding member. Then, the first adjusting screw 40 is screwed into the screw hole 38, and the individual deflecting device 10 is fixed to the holding member 36 by these adjusting screws.

Further, in the holding member 36, a plurality of, for example, three through holes 42 extending in the axial direction of the holding member are formed at equal intervals along the circumferential direction of the holding member.
Then, the second adjusting screws 44 are inserted into these through holes 42, and the respective second adjusting screws are screwed into the screw holes 34 of the connecting member 11 through the coil springs 46. As a result, each individual deflecting device 10 is attached to the connecting member 11 via the holding member 36 and faces the connecting portion opening 32. Note that the holding member
36, first and second adjusting screws 40, 44 are individual deflection devices
It is formed of an electrically insulating material having no conductivity so as not to affect the operation of 10.

A deflection device 12 having a connecting member 11 and a plurality of individual deflection devices 10 attached to the connection member 11 is a vacuum envelope 30.
The neck portion 6 of each funnel 4 is fixed to the rear plate 3 and is inserted into the corresponding individual deflecting device 10 through the connecting portion opening 32 of the connecting member 11. And each individual deflection device
The small diameter side end of the mold 15 of 10 is slightly larger in diameter than the outer diameter of the neck 6, and the position adjustment described later is possible.

According to the picture tube device configured as described above, each pair of deflection coils of the individual deflection device 10 arranged outside each funnel 4 for each electron beam emitted from the plurality of individual electron guns 7 is arranged. By deflecting horizontally and vertically by the magnetic field generated by 13, the electron beam emitted from each electron gun scans the corresponding region of the continuous phosphor screen 5 and a plurality of small regions R1, R2, R3, ...... Divide into R20 and scan. Therefore, it can be said that the phosphor screen 5 substantially has a plurality of regions. The screens obtained on the small areas of the phosphor screen 5 by this divided scanning are connected by the signals supplied to the individual electron guns 7 and the individual deflecting devices 10, and one large, continuous screen is formed on the entire surface of the phosphor screen 5. The screen R is constructed.

By the way, as described above, a plurality of individual electron guns are used.
The electron beam emitted from 7
In the picture tube device that displays one large screen without break by deflecting by the magnetic field generated by the individual deflecting device 10 arranged corresponding to 7, the phosphor screen 5 is divided and scanned. The pincushion deflection distortion that occurs when deflecting must be exactly the same as that of the screen in the adjacent area and extremely small. Therefore, the setting (adjustment) of the deflection magnetic field of each individual deflection device 10 is required to be accurate and strict.

Further, as in the case of the conventional picture tube device, in order to remove the pincushion-shaped deflection distortion, an inhomogeneous magnetic field distribution is required, and correction is performed by using a deflection current superposed with a correction component. Even when (changing distortion is removed) or when it is supplemented and used for correction, the magnetic field distribution requires some degree of non-uniform component.

Further, in the case of performing a predetermined deflection without deflection distortion by a deflection device which generates a deflection magnetic field having a magnetic field distribution having inhomogeneity, the relationship between the electron beam and the deflection magnetic field is
The electron beam always passes through the symmetry axis (center) of the deflection field,
In addition, you must pass through the center of each split screen. That is, in order to display a screen without deflection distortion, the center axis of the electron beam, the center of the deflection magnetic field and the center of the split screen are perfectly aligned, and the center axis of the electron beam is perpendicular to the phosphor screen. There must be.

To display a more seamless screen,
It is necessary to set the position of the deflection magnetic field in the rotation direction to be the same as that of the adjacent individual deflection device, and to set the horizontal and vertical components to be aligned vertically and horizontally on the same axis.

According to the present embodiment, when it is necessary to adjust the position of the individual deflecting device 10 with respect to the electron gun 7, the adjusting mechanism 19 can adjust each individual deflecting device. That is, by adjusting the first adjusting screw 40, the individual deflection device 10
Can be moved in a horizontal direction with respect to the electron gun 7, that is, in a direction parallel to the surface of the connecting member 11. In the present specification, the position adjustment of the individual deflecting device with respect to the electron gun means the position adjustment with respect to the electron beam emitted from the electron gun, particularly the electron beam passing through the center of the divided screen. Further, by rotating three second adjusting screws 44 at the same time, the individual deflecting device 10 can be moved together with the holding member 36 in the direction orthogonal to the surface of the connecting member 11, and at the same time, the second adjusting screw 44 By selectively rotating one of them, the inclination of the individual deflection device 10 with respect to the electron gun 7 can be adjusted.

According to the picture tube device configured as described above, since the plurality of individual deflecting devices 10 are connected to each other by the connecting member 11 to form one deflecting device 12, the connecting members are surrounded by a vacuum. All the individual deflecting devices 10 can be attached to the opposing funnels 4 simply by attaching them to the device 30. Then, the individual deflecting device 10 has the connecting member 11 in advance.
Since it is attached to the predetermined position of
Simply attach the 12 to the vacuum envelope 30
The 10 can be arranged at a predetermined position with respect to the corresponding electron gun 7. Therefore, as compared with the case where the individual deflecting device is individually attached to the funnel of the picture tube, the attaching work and the adjusting work are facilitated. And if needed,
By using the adjusting mechanism 19, the position of the individual deflecting device 10 with respect to the electron gun 7 can be easily adjusted. Therefore, it is possible to obtain a picture tube device which is easy to manufacture and whose position of the deflecting device 12 can be easily adjusted.

Next, a second embodiment of the present invention will be described. The same parts as those in the above embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIGS. 4 and 5, according to the second embodiment, each individual deflecting device 10 is directly attached to the rectangular plate-like connecting member 11 without the adjustment mechanism, and together with the connecting member 11. A single deflector 12 is constructed. That is, each individual deflection device 10
Is a pair of deflection coils 13 for horizontally and vertically deflecting the electron beam emitted from the corresponding individual electron gun 7.
, The magnetic material core 14, the deflection coil 13 and the core 14
And a mold 15 which holds the above in a predetermined positional relationship. The mold 15 has a frustoconical shape, and an outer side of the mold 15 has a terminal block for supplying a deflection current to each deflection coil 13.
16 are provided. Then, each individual deflecting device 10 is attached to the connecting member 11 in a state where the end portion on the large diameter side of the mold 15 is fitted into the connecting portion opening 32 of the connecting member 11.

According to the second embodiment, the deflection device 12 includes a rear plate of the vacuum envelope 30 via a plurality of adjusting and fixing mechanisms 21.
It is fixed at 3. These adjusting and fixing mechanisms 21 adjust the relative positions of the connecting member 11 and the vacuum envelope 30 and fix the deflecting device 12 to the vacuum envelope, and at four corners of the connecting member 11. It is provided.

As shown in FIGS. 6 and 7, each adjusting and fixing mechanism 21 is erected at the corners of the connecting member 11 and is erected at the corners of the rear plate 3 and the upright walls 50 and 52 which are perpendicular to each other. And a prism-shaped fixing portion 54. The upright walls 50 and 52 are engaged with the fixed portion 54 and constitute the engaging portion in the present invention. In the state where the deflecting device 12 is attached to the rear plate 3, the upright walls 50 and 52 face the side surfaces of the fixed portion 54, and the upper surface of the fixed portion 54 faces the lower surface of the connecting plate 11.

Screw holes 55 are formed in the upright walls 50 and 52, respectively. A first adjusting screw 58 is screwed into these screw holes 55, and the tip end thereof is in contact with the side surface of the fixing portion 54. Therefore, by rotating the first adjusting screw 58, the deflecting device 12 can be moved in the horizontal direction with respect to the vacuum envelope 30, that is, in the direction parallel to the surface of the rear plate 3. Further, a screw hole 60 extending perpendicularly to the surface of the rear plate 3 is formed on the upper surface of the fixing portion 54, and the through hole 62 and the coil spring formed in the fixing member 11 are formed in this screw hole.
A second adjusting screw 64 is threaded through 63. Then, by rotating all the second adjusting screws 64 by the same amount or by a selective amount, the distance and the inclination of the connecting member 11 with respect to the rear plate 3 can be adjusted. The diameters of the through hole 62 and the coil spring 63 are set larger than the shaft diameter of the second adjusting screw 64 so that the fixing member 11 can be moved horizontally.

Each of the components such as the upright wall and the screw of the adjusting and fixing mechanism 21 is made of an electrically insulating material so as not to affect the operation of each individual deflecting device 10. It should be noted that the adjusting and fixing mechanism 21 can be set in an arbitrary number at an arbitrary position as long as it is at a position where it does not interfere with other components between the connecting member 11 and the rear plate 3.

Further, FIGS. 8 and 9 show a simplified structure of the adjusting and fixing mechanism 21. This adjusting and fixing mechanism 21
A support rod 26 is provided that extends vertically from the rear plate 24 toward the connecting member 11. On the other hand, the connecting member 11 is formed with a through hole 27 facing the supporting rod 26 and having a diameter larger than that of the supporting rod, and the through holes are elastic members fixed to the upper surface and the lower surface of the connecting member 11, respectively. Circular plate with resin
Blocked by 25. The deflection device 12 is held at a predetermined position with respect to the vacuum envelope 30 by inserting the support rod 26 into the through hole formed in the plate 25.

According to the adjusting and fixing mechanism 21 having the above-described structure, when the deflecting device 12 is adjusted in the horizontal direction, that is, in the direction perpendicular to the electron gun, the connecting and fixing member 11 is moved within a range in which the adjusting and fixing mechanism sandwiches the support rod 26. It is done by letting. Further, the vertical direction of the deflecting device 12, that is, the direction along the direction of the electron beam from the electron gun is adjusted by moving the connecting member 11 up and down along the support rod 26. Further, by adjusting the adjustment fixing mechanism 21 at several positions in combination, the inclination of the deflecting device 12 with respect to the vacuum envelope 30 can be adjusted. The adjusting and fixing mechanism 21 can be installed in the same manner as the adjusting and fixing mechanism in the second embodiment, and the support rod 2 of any size can be used.
6. By using the plate 25, the maximum adjustment amount can be optimized.

With the picture tube apparatus according to the second embodiment or the picture tube apparatus using the adjusting and configuring mechanism according to the modification described above, each individual deflecting device can be accurately positioned at a predetermined position with respect to the picture tube. In addition, it is possible to set easily, and thereby each of the above problems can be easily solved.

That is, when the deflecting device 12 is constructed as described above, the individual deflecting device 10 is set (adjusted) and fixed to the connecting member 11 in advance using a reference jig or a reference picture tube. The integrated deflector is attached to the picture tube, and by adjusting the individual deflector 10 when attaching to the picture tube, all the individual deflectors 10 are adjusted once. Can be placed in place.

One embodiment of a manufacturing method using a reference jig for constructing such a deflecting device is shown in FIGS.
2 is used for the explanation. Individual deflection device for connecting member 11
The reference jig for positioning 10 has multiple position setting parts.
101 and a plurality of probes 102 for measuring a deflection magnetic field. The number of position setting units 101 and the number of probes 102 correspond to the number of individual deflection devices 10. Each probe 102 is fixed at the intersection of the lattice-shaped support frame 110,
Magnetic fields in at least three axial directions can be measured simultaneously. The plurality of probes 102 are accurately arranged at a predetermined position, that is, a position corresponding to the electron beam emitted from the electron gun 7 of the picture tube. Further, each position setting unit 101 has a base 112 and four support arms 114 extending from the base, and has a degree of freedom with respect to the probe 102 in all directions.

To assemble the deflecting device 12, first, each individual deflecting device 103 is temporarily fixed to the supporting arm 114 of the corresponding position setting section 101, and the probe 102 for measuring the deflection magnetic field is attached to the individual deflecting device 10.
Insert inside. In this state, a magnetic field is generated from each individual deflection device 10, and the magnetic field is measured by the probe 102. Then, based on the measurement value obtained from the probe 102, each individual deflecting device 103 is manually or automatically set to a preset reference position (FIG. 11). After the position setting of each individual deflecting device 103 is completed, the connecting member 11 is fixed to the individual deflecting device 10 (FIG. 12), and the temporary setting of the position setting unit 101 is removed from each individual deflecting device to integrate them. The deflection device 12 is manufactured. According to the deflecting device 12 manufactured in this way, the plurality of individual deflecting devices 10 are arranged in a positional relationship that accurately corresponds to the plurality of electron guns 7 of the picture tube. Therefore, by attaching the deflecting device 12 to the picture tube as it is, the subsequent position adjustment of the individual deflecting device 10 with respect to the picture tube becomes unnecessary.

However, when the deflection device 12 is attached to the picture tube, the center axis of each electron beam and the center of the divided screen on the phosphor screen 5 may not completely coincide with each other. Fine adjustment of the central axis of the electron beam, the central axis of the deflection magnetic field of the individual deflection device 10 and the center of the divided screen is performed in the same manner as in the conventional picture tube device. Is performed using a centering magnet (not shown) that generates Further, there is a possibility that the divided screen of the phosphor screen 5 and the individual deflecting devices 10 may not be completely aligned with each other even when rotated in the vertical direction.
Therefore, in such a case, the adjustment fixing mechanism 21 can be used to adjust the horizontal and vertical position and inclination of the entire deflecting device 12.

Also in the second embodiment constructed as described above, since the plurality of individual deflecting devices 10 are fixed to the single connecting member 11 to form the integral deflecting device 12, the deflecting device is formed. It is possible to mount a plurality of individual deflecting devices at predetermined positions with respect to the corresponding electron guns by simply mounting the on the picture tube. Further, according to the manufacturing method described above, it is necessary to individually adjust the positions of the individual deflecting devices when the deflecting devices are mounted on the picture tube by accurately attaching the plurality of individual deflecting devices to the connecting member in a predetermined positional relationship in advance. Is eliminated and the assembly work becomes extremely easy. Further, by adjusting the adjusting and fixing mechanism 21, it is possible to integrally adjust the positions of the plurality of individual deflecting devices 10, which facilitates the position adjusting work. If a reference position is provided for each of the picture tube, the connecting member, and the individual deflection device when the picture tube device is designed in advance, if the parts and assembly accuracy is high, the parts can be adjusted based on the reference position. Will be even easier. And
The center axis of the electron beam and the center of the split screen can be accurately matched, and the deflection distortion of each screen can be generated symmetrically between adjacent screens. As a result, the deflection distortion of the screen is simplified, a seamless screen can be displayed between the adjacent scanning regions, and a practical CRT device can be provided.

Furthermore, in the above-mentioned first and second embodiments, the adjustment means of the individual deflecting device or the adjustment means for adjusting the position of the connecting member with respect to the picture tube is actually displayed on the screen of the picture tube. It can be automatically performed based on image data or preset data.
Specifically, it is performed by adjusting the rotation amount of the adjusting means, for example, the adjusting screw based on the above data, using an automatic adjusting device for adjusting the adjusting means. In the manufacturing process, the deflecting device can be moved to an arbitrary position by inputting movement data, or a series of adjustment work can be performed manually.

The present invention is not limited to the above-described embodiments, but can be variously modified within the scope of the present invention. For example, in the above-described embodiment, the deflecting device is configured such that the individual deflecting device and the connecting member are individually formed, and the individual deflecting devices are attached to and integrated with the connecting member. And can be integrated from the beginning. The connecting member may have a plate-shaped multilayer structure instead of a single layer.

Further, in the second embodiment, the deflection device 12
May be provided with an adjusting mechanism 19 for adjusting each individual deflecting device 10 with respect to the connecting member 11, as in the first embodiment.
In the above embodiment, all the individual deflecting devices are fixed and integrated with one connecting member. However, for example, the individual deflecting devices are attached to separate connecting members for each vertical row or each horizontal row. May be. Also in this case, a plurality of individual deflecting devices can be attached to the picture tube at the same time, and manufacturing and position adjustment are easier than in the case where the individual deflecting devices are attached to the picture tube one by one. In addition,
It is also optional to provide another member on the connecting member side.

Further, in the above-described embodiment, the individual deflecting device has a structure having a mold, but the structure of the individual deflecting device is not limited to this, and it is sufficient that the individual deflecting device has a deflection coil. Further, in the above-mentioned embodiment, the case where the adjusting mechanism and the centering magnet are used for adjusting the center axis of the electron beam and the center of the deflection magnetic field has been described, but this adjustment may be performed electrically using a correction means. If the individual electron gun is fixed to the phosphor screen with extremely high accuracy, the correction means can be omitted.

In the above embodiment, the case of the three-electron-beam type color picture tube device has been described, but a monochromatic picture tube which emits one electron beam in the neck, a beam index type picture tube device, and one picture tube device. The present invention can also be applied to a color picture tube device of a system in which an electron beam of 3 is equivalently converted to 3 electron beams by electromagnetic or electrostatic deflection.

[0046]

According to the picture tube device constructed as described above, a plurality of individual deflecting devices are connected to each other by the connecting means to be integrated, so that the plurality of individual deflecting devices can be simultaneously applied to the plurality of electron guns. It can be placed in place.
When it is necessary to adjust the position of each individual deflecting device with respect to each electron gun, the position can be adjusted by the adjusting means.

Further, by disposing a plurality of individual deflecting devices in a predetermined positional relationship by the connecting means in advance, it is not necessary to individually adjust the individual deflecting devices when they are attached to the picture tube. Further, when adjustment is necessary, the positions of the plurality of individual deflection devices can be adjusted at the same time by adjusting the position of the connecting means by the adjusting means. Therefore, the adjustment of the deflection device with respect to the picture tube is greatly simplified.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a picture tube device according to an embodiment of the present invention.

2 is a cross-sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view showing a structure of a deflecting device portion of the above device.

FIG. 4 is a sectional view showing a picture tube device according to another embodiment of the present invention.

5 is a perspective view showing a structure of a deflecting device portion of the picture tube device shown in FIG. 4;

6 is a perspective view showing the adjusting and fixing mechanism of FIG. 4;

7 is an exploded perspective view showing the adjusting and fixing mechanism of FIG.

FIG. 8 is a sectional view showing a picture tube device according to still another embodiment of the present invention.

9 is a perspective view showing the adjusting and fixing mechanism of FIG.

FIG. 10 is an exploded perspective view for explaining the manufacturing method of the picture tube device of the present invention.

FIG. 11 is a perspective view showing a state in which an individual deflection device is attached to a reference jig.

FIG. 12 is a perspective view showing a state in which an individual deflecting device is attached to a connecting member using a reference jig.

[Explanation of symbols]

 30 ... Vacuum envelope 5 ... Phosphor screen 7 ... Individual electron gun 10 ... Individual deflection device 12 ... Deflection device 19 ... Adjustment mechanism 21 ... Adjustment fixing mechanism

Front page continued (72) Inventor Eiji Kambara 1-9-2, Harara-cho, Fukaya-shi, Saitama Stock company Toshiba Fukaya Electronics Factory

Claims (6)

[Claims] 1. A plurality of individual electron guns, a phosphor screen which is divided into a plurality of regions and scanned by electron beams emitted from each of the individual electron guns, and a plurality of individual electron guns are emitted. In the picture tube device including the deflecting means for deflecting the electron beam, the deflecting means includes a plurality of individual deflecting devices arranged corresponding to each of the individual electron guns, and connecting means for connecting the individual deflecting devices. A picture tube device comprising: 2. The picture tube device according to claim 1, wherein the deflecting means includes adjusting means for adjusting the position of the individual deflecting device. 3. A vacuum envelope having a substantially rectangular first plate and a substantially rectangular second plate provided to face the first plate substantially in parallel, and a plurality of vacuum envelopes. The individual electron gun, the phosphor screen formed on the inner surface of the first plate and divided into a plurality of regions by the electron beams emitted from each of the individual electron guns, and scanned, and the plurality of individual electron guns. In a picture tube device provided with a deflecting means for deflecting an emitted electron beam, the deflecting means connects a plurality of individual deflecting devices provided corresponding to the individual electron guns with the individual deflecting device. And a fixing means for fixing the deflecting means to the second plate. 4. The picture tube device according to claim 3, wherein the fixing means has adjusting means for adjusting the position of the connecting means with respect to the second plate. 5. A plurality of individual electron guns, a phosphor screen that is divided into a plurality of regions and scanned by electron beams emitted from each of the individual electron guns, and a plurality of individual electron guns. A method for manufacturing a picture tube device comprising at least deflecting means for deflecting an electron beam, the method comprising: fixing the plurality of individual deflecting devices to a connecting member in a predetermined positional relationship. And a step of attaching the fixed connecting member of the individual deflecting device to the vacuum envelope. 6. The method of manufacturing a picture tube device according to claim 5, further comprising the step of adjusting the position of the individual deflecting device after attaching the connecting member to the vacuum envelope.