CN1332887A - Deflection yoke and color picture tube comprising the same - Google Patents

Deflection yoke and color picture tube comprising the same Download PDF

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Publication number
CN1332887A
CN1332887A CN99815270A CN99815270A CN1332887A CN 1332887 A CN1332887 A CN 1332887A CN 99815270 A CN99815270 A CN 99815270A CN 99815270 A CN99815270 A CN 99815270A CN 1332887 A CN1332887 A CN 1332887A
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China
Prior art keywords
aforementioned
coil
parts
electron gun
deflection system
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Granted
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CN99815270A
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Chinese (zh)
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CN1155985C (en
Inventor
田上悦司
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN1332887A publication Critical patent/CN1332887A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70Arrangements for deflecting ray or beam
    • H01J29/72Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76Deflecting by magnetic fields only
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70Arrangements for deflecting ray or beam
    • H01J29/72Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76Deflecting by magnetic fields only
    • H01J29/762Deflecting by magnetic fields only using saddle coils or printed windings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70Arrangements for deflecting ray or beam
    • H01J29/701Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least

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  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

A deflection system easily produced at low cost, comprising saddle-shaped horizontal and vertical deflection coils (11, 12) provided along the inner and outer faces of an insulating frame (13) and a correction coil (15) provided above the outer peripheral surfaces of the bent portions on the electron gun side of the deflection coils, wherein a setting member (16) is provided in a fixed relation with respect to the insulating frame (13) on the electron gun side and behind the bent portions on the electron gun side of the deflection coils, and the correction coil (15) is on the wall of the setting member (16), facing the screen.

Description

Deflection system and the colour display tube dence that uses this deflection system
Technical field
The present invention relates to be installed in the deflection system on the color picture tube that is used for TV imagescope or computer display etc. (below be expressed as " CRT "), and the structure of the CRT device that uses this deflection system, particularly deflection system.
Background technology
In the past,, a kind of deflection system that is known as no flexure type is arranged as the deflection system that is installed in the auto-convergence mode of using among the in-line arrangement CRT.Below, describe with regard to the structure of existing no flexure type deflection system.Fig. 1 is the general profile chart that the structure of existing no flexure type deflection system represents in the pattern mode.
As shown in the drawing, no flexure type deflection system 6 possesses: the saddle type horizontal deflection coil of installing along the inner peripheral surface of Insulating frame 13 11, along the outer peripheral face of Insulating frame 13 and and the saddle-shape vertical deflection coil of installing between the FERRITE CORE 14 12; Electron gun side bend (" ベ Application De portion ") 17 (parts that with dashed lines fences up among the figure) with horizontal deflection coil 11 and frame deflector coil 12 carry over substantially in the structure of cone 4 outer peripheral faces of CRT.Among this figure 15 is, be arranged on the correcting coil that vertical misconvergence on the periphery position, that so-called VCR (vertical coma aberration) or limit bundle (R, B) are produced is proofreaied and correct from the main lens portion 51 of electron gun 5 slightly forward to the electron beam transmit direction, among the figure 31 is used for fixing parts this correcting coil 15, that be known as rear back cover, tegillum (below be called " rear back cover 31 "), and its back that acts on is narrated.
In general, its allocation position of saddle coil is the closer to electron gun one side, and then deflection center will rely on electron gun one side more, and deflection sensitivity improves, and can make the electron beam deflecting with less electric energy, therefore, can realize energy-conservationization of deflection energy.As no flexure type deflection system, with for example employed so far flexure type deflection system, promptly, its structure is that the electron gun side bend of deflecting coil is compared from the outwards outstanding deflection system of the outer peripheral face of cone, the allocation position of deflecting coil can more close electron gun side, therefore, have deflection sensitivity, can reduce the advantage of deflection power consumption than above-mentioned flexure type deflection system height.These advantages are effective especially for the CRT device of the large deflection angle that extensively is applied in recent years, and therefore, present present situation is, in the CRT of large deflection angle device, use nearly all be the deflection system of no flexure type.
Though no flexure type deflection system has advantage discussed above, existing no flexure type deflection system, owing to its structural reason, the problem of the manufacturing process's inefficiency that exists.
That is, in no flexure type deflection system, in the time correcting coil 15 will being configured in electron gun side bend 17 tops, must will be used for correcting coil 15 is fixed and the parts of locating much are provided with to the top of electron gun side bend 17 is outstanding.Its reason is, at this moment, if Insulating frame 13 is configured as one with the aforementioned parts that are provided with highlightedly, then when the assembling deflection system, frame deflector coil 12 must insert in the gap between this protuberance and the Insulating frame 13 and install, this will cause assembling to carry out, and perhaps packaging efficiency is extremely low.
Therefore, in the existing no flexure type deflection system, it is fixed, locatees the parts of usefulness, use rear back cover shown in Figure 1 31 usually as making correcting coil 15 avoid forming when interfering with frame deflector coil 12.On rear back cover 31, install correcting coil 15 in advance, and on Insulating frame 13, install after the frame deflector coil 12, insert, carry out the fixing and location of correcting coil 15 with this from electron gun one side of Insulating frame 13.
But, exist such problem in the occasion of using rear back cover 31 to make no flexure type deflection system, promptly, this rear back cover 31 needs to make in addition, therefore, the operation of corresponding parts cost and installation rear back cover 31 will increase inevitably, cause manufacturing cost to increase undoubtedly.
The present invention be directed to the problems referred to above and create out, its objective is provides a kind of particularly when the no flexure type deflection system of assembling, assembling is become easily, and can reduce the deflection system of manufacturing cost, and the CRT device that uses this deflection system.
Disclosure of an invention
Deflection system of the present invention belongs to a kind of horizontal deflection coil of its saddle type and the frame deflector coil of saddle type sets along inner peripheral surface and outer peripheral face to this horizontal deflection coil and the two Insulating frame that insulate of aforementioned frame deflector coil respectively, and the position is provided with the deflection system that correcting coil forms above the outer peripheral face of the electron gun side bend of aforementioned each deflecting coil, it is characterized in that, in the position of more leaning on the electron gun side rear than the electron gun side bend of aforementioned each deflecting coil, on the aforementioned dielectric framework, the state that is fixed with position relation is provided with to install use parts, and the aforementioned corrected coil is arranged on position above the outer peripheral face of aforementioned electronic rifle lateral bending pars convoluta to be located in aforementioned installation with the state on the wall of the screen-oriented of parts.
According to such structure, after being installed in frame deflector coil on the Insulating frame, can correcting coil be installed at an easy rate, therefore, particularly can make the assembling of no flexure type deflection system be easy to carry out.
If aforementioned installation is integrally formed with parts and aforementioned dielectric framework, then need not to re-use the rear back cover that is also using so far here,, therefore, except the cost that can reduce parts, also do not need to insert the operation of rear back cover, so can reduce the manufacturing cost of deflection system.
In addition, if the aforementioned corrected coil is made the structure that can freely install and remove with parts with respect to aforementioned installation, then when breaking down, correcting coil or each deflecting coil be convenient to keep in repair.
The simple declaration of accompanying drawing
Fig. 1 is the schematic sectional view of the structure of existing no flexure type deflection system.
Fig. 2 is the general profile chart of one of the structure of application CRT device of the present invention example.
Fig. 3 is the stereogram of one of structure of the deflection system 6 in form of implementation of the present invention example.
Fig. 4 is the longitudinal sectional view (part of correcting coil 15 is an end view) that the structure to the deflection system 6 in form of implementation of the present invention is roughly represented.
Fig. 5 is the three-view diagram of one of structure of the correcting coil 15 in this form of implementation example.
Fig. 6 is the enlarged drawing of the part of fixed correction coil 15 on the deflection system 6 in this form of implementation.
Fig. 7 is the state diagram of adopting the magnetic field that the correcting coil 15 of U-shaped magnetic core produced.
Fig. 8 is the image of the caused misconvergence of vertical coma aberration (VCR).
Fig. 9 is the image of vertical misconvergence of being produced of limit bundle (R, B).
Figure 10 is the state diagram of adopting the magnetic field that the correcting coil 15 of E shape magnetic core produced.
Figure 11 is the stereogram of one of structure example that adopts the deflection system 6 of E shape magnetic core.
Figure 12 is the state diagram in magnetic field that the correcting coil 15 that U-shaped magnetic core and I shape magnetic core set are used is altogether produced.
Figure 13 is the stereogram of one of the structure of deflection system 6 that U-shaped magnetic core and I shape magnetic core set are used altogether example.
Figure 14 is provided with patchhole 31 on surface plate 16, the end of fixed part 26 is plugged in this patchhole 31 and the stereogram of one of structure under the occasion that correcting coil 15 is fixing, deflection system 6 example.
Figure 15 is the partial enlarged drawing of patchhole 31.
Figure 16 makes the stereogram of width than one of structure under the narrow occasion of other parts, deflection system 6 example with the part of the installation correcting coil 15 of surface plate 16.
The optimised form that carries out an invention
Below, to form of implementation of the present invention in conjunction with the accompanying drawings.
Fig. 2 is the schematic sectional view of one of the structure of application CRT device of the present invention example.In the CRT device 1 in the figure, the front panel 3 and the cone 4 that are formed with the phosphor screen face by inner surface constitute outer containment body, are provided with the electron gun 5 of divergent bundle 7 in the neck of cone 4.And at the neck of cone 4, deflection system 6 involved in the present invention is installed along the outer surface of cone 4.
Fig. 3 is the stereogram of one of structure of the deflection system 6 in this form of implementation example, and Fig. 4 is the longitudinal sectional view (part of correcting coil 15 is an end view) that the structure to this deflection system 6 is roughly represented.The FERRITE CORE 14 of the cone 4 of CRT shown in Figure 4, electron gun 5 and deflection system 6 is omitted in Fig. 3.
Deflection system 6 in this form of implementation belongs to a kind of so no flexure type deflection system: comprise, along the saddle type horizontal deflection coil 11 of the positive camber setting of cone 4, be arranged on horizontal deflection coil 11 outsides saddle-shape vertical deflection coil 12, with the Insulating frame 13 of horizontal deflection coil 11 and frame deflector coil 12 the two insulation, be arranged on the FERRITE CORE 14 in frame deflector coil 12 outsides and be arranged on electron gun 5 main lens 51 parts along the electron beam transmit direction correcting coil 15 of the foreign side in the place ahead slightly; Having electron gun side bend 17 (part that with dashed lines fences up among the figure) carries over substantially in the structure of the outer peripheral face of the cone 4 of CRT.
In this form of implementation, position, electron gun side rear at Insulating frame 13, the surface plate 16 approximately parallel with the screen cover of CRT device 1 is made of one and is provided with Insulating frame 13, the screen cover side of surface plate 16 (below, the front side of electron beam direction of advance is expressed as " screen cover side ", it is expressed as in the other direction " electron gun side ", said " position, electron gun side rear " be meant at electron gun side, is present in front end than electron gun 5 more by electron gun side) fixed correction coil 15 forms.Making correcting coil 15 location at the screen cover of surface plate 16 as described above is main points of the present invention.In addition, in this form of implementation, the two is integrally formed for Insulating frame 13 and surface plate 16.Thus, can reduce amount of parts, so help reducing manufacturing cost; But also can the two make independent parts with Insulating frame 13 and surface plate 16, before correcting coil 15 is installed, for example before frame deflector coil 12 is installed, the two is assembled.Its reason is, does also can obtain compared with prior art like this, can make the manufacturing of the deflection system 6 easy effect that becomes.
In this form of implementation, as correcting coil 15, see that from screen cover the past is to be separately fixed at top and below, be arranged to from surface plate 16 outstanding to the outer peripheral face of electron gun side bend 17, and, can freely fixing with respect to surface plate 16 with installing and removing.
Fig. 5 is the three-view diagram of one of structure of the correcting coil 15 in this form of implementation example.Correcting coil 15 is made of towards U-shaped magnetic core 22, the coil rack 23 that is installed in the substantial middle of U-shaped magnetic core 22 bottom side portion, the pair of flanges portion 25 that is arranged on coil rack 23 two ends that the ferrite of electron gun side bend 17 constitutes, the fixed part 26 that is fixed on U-shaped magnetic core 22 bottom side portion two ends etc. two foots, in order to constitute correcting coil 15, on coil rack 23, be wound with lead not shown among Fig. 5.In addition, in this form of implementation, fixed part 26 is formed by plastics, and fixes by adhesive between the U-shaped magnetic core 22.
Get back to Fig. 3, in the correcting coil 15 in this form of implementation, its flange part 25 contacts with the screen side surface of surface plate 16, to limit the distance of correcting coil 15 anomaly panels 16, simultaneously, the claw 27 that is arranged on fixed part 26 ends fastens with the rectangular notch part 28 that is arranged on the edge of surface plate 16, thereby the two is fixed up with correcting coil 15 and surface plate 16.Fig. 6 is this notch part 28 and claw 27 the two enlarged drawing partly that fasten.In this form of implementation,, flange part 25 make correcting coil 15 be easy to locate by being set; But according to the factors such as material of fixed part 26, also can consider by claw 27 and notch part 28 the two engage the location of realizing correcting coil 15, under this occasion, also flange part 25 can be set sometimes.
Correcting coil 15 in this form of implementation is the correcting coils with following function, promptly, as shown in Figure 7, coiling lead 24 on U-iron ferrite core 22 can produce 6 pole fields synchronous with vertical deflection, is suitable for most its image VCR is as shown in Figure 8 proofreaied and correct, simultaneously, also be wound with other lead, make same magnetic core 22 produce 4 pole fields, vertical misconvergence of its image limit bundle (R, B) is as shown in Figure 9 proofreaied and correct by the magnetic field that this lead produced is controlled.This effect of correcting coil 5 itself has been technique known, therefore, omits its detailed description here; But need to prove, both can be according to outside above-mentioned VCR and the two pattern of wants of proofreading and correct of vertical misconvergence, also can constitute according to the needs of only a side being proofreaied and correct.
Certainly, as correcting coil 15, can also use the coil that forms at each foot's coiling lead 24 of E shape FERRITE CORE 29 shown in Figure 10.Use the occasion of this E shape magnetic core 29, an example of its structure as shown in figure 11 preferably, is seen over from screen cover, on the right side and the left side correcting coil 15 is installed.Under this occasion, by different conductor being wound on the same FERRITE CORE 29 and to controlling in magnetic field, can constitute the correcting coil 15 that vertical misconvergence of aforementioned VCR and limit bundle (R, B) is proofreaied and correct respectively, this point is identical with the occasion of using U-shaped magnetic core 22.
In addition, also can be as shown in figure 12, U-shaped magnetic core 22 and I shape magnetic core 30 is combined and constitute correcting coil 15.Under this occasion, for example, can shown in an example of its structure of Figure 13, carry out the installation of correcting coil 15.
As described above, notch part 28 is set and the structure that engages with claw 27 at the sideway stance of surface plate 16, in deflection system involved in the present invention 6, but be for a kind of example of structure of correcting coil 15 being installed on surface plate 16, other various methodologies can also being arranged about installation method.For example, also can as shown in figure 14 patchhole 31 be set on surface plate 16, make claw 27 that is arranged on fixed part 26 ends and the notch part 28 that is arranged on these patchhole 31 inner peripheral surfaces fasten.Figure 15 is the enlarged drawing that is provided with patchhole 31 peripheries under the occasion of this patchhole 31.In addition, also claw 27 can be set, and the end of fixed part 26 is plugged in the patchhole 31, perhaps, patchhole 31 can be set also, and the slit is set on surface plate 16, thereby it is fixing with correcting coil 15 that fixed part is plugged in this slit.
In addition, as by claw 27 grades are set so that correcting coil 15 and surface plate 16 the two structure that can freely install and remove, when for example correcting coil 15 or deflecting coil etc. break down, can be only a side be wherein changed, this point makes that the maintenance of CRT device is easy to carry out, but be not limited thereto structure, also can adopt the parts that to install after the correcting coil 15 to be bonded in structure on the surface plate 16 with adhesive.Its reason is, does the manufacturing that also can obtain the to make deflection system easy effect that becomes like this.
And, even in the occasion of not using I shape magnetic core 30 shown in Figure 13, if as shown in figure 16, make its width of part of installation correcting coil 15 of surface plate 16 narrow than other parts, then obviously can save the material of the surface plate 16 that is used to be shaped, can also make the size of whole surface plate 16 littler than illustrated surface plate.Undoubtedly, various variation discussed above the occasion of using E shape FERRITE CORE 29 and and any occasions such as occasion with I shape magnetic core 30 under all can adopt equally.
Below, just applying the present invention to 46[cm] (19 inches), 100 degree deflector type displays describe with an embodiment in the in-line arrangement CRT device.
If the tube axial direction of CRT device is the Z axle, its direction of pointing to the screen cover side is a positive direction, and the position of the electron gun side rear end of horizontal deflection coil 11 and frame deflector coil 12 is Z=0.The electron gun side bend 17 of supposing frame deflector coil 12 is positioned at Z=0~8[mm] scope, then with surface plate 16 for example its thickness make 2[mm], and be arranged on Z=-2~0[mm] the position.Afterwards, by with correcting coil 15 at Z=2~4[mm] scope in fix, correcting coil 15 just is configured in the top of electron gun side bend 17.
As described above, the deflection system of the application of the invention makes no flexure type deflection system to assemble at an easy rate.In addition, if the two is integrally formed with Insulating frame 13 and surface plate 16, then needn't use existing no flexure type deflection system necessary, with respect to the rear back cover of Insulating frame 13 as separate part, just can make it to have function with the same fixed correction coil of prior art.In addition, by adjusting the size of fixed part 26 and flange part 25, correcting coil 15 can be arranged on the optional position.
In above-mentioned form of implementation, what the parts of fixed correction coil 15 used is surface plate 16, but is not limited to surface plate, so long as correcting coil 15 can be fixed on suitable locational parts, the parts of Any shape all can.
In addition, in above-mentioned form of implementation, magnetic core 22 grades and fixed part 26 the two usefulness adhesive of correcting coil 15 are bonding, but also can consider various variation to this, for example, also can manufacture correcting coil 15 by fixed part 26 and flange part 25, coil rack 23 etc. being configured as parts and FERRITE CORE, the lead etc. that one forms.
In addition, in above-mentioned form of implementation, be illustrated with regard to the example that applies the present invention to not have the flexure type deflection system, but range of application of the present invention is not limited to not have the flexure type deflection system, as long as adopt gimmick of the present invention, even for the flexure type deflection system, also correcting coil can be configured in than surface plate and more lean on the screen cover side, this point is effective for the magnetic field of not wishing correcting coil to the occasion that electron gun side leaks.
In addition, range of application of the present invention is not limited to the deflection system of auto-convergence mode.Even this is because for the deflection system outside the auto-convergence mode, also need certain correcting coil be set at the electron gun side bend of deflecting coil sometimes, and gimmick of the present invention can be applied in this occasion.Therefore, with regard to correcting coil 15, be not limited to vertical misconvergence of VCR and limit bundle is proofreaied and correct, also can be applied to various correcting coils.
The possibility of utilizing on the industry
Deflection system of the present invention and CRT device are specially adapted to adopt large deflection angle CRT device The TV imagescope and computer display etc. in.

Claims (20)

1. deflection system, be that the horizontal deflection coil of its saddle type and the frame deflector coil of saddle type set along inner peripheral surface and outer peripheral face to this horizontal deflection coil and the two Insulating frame that insulate of aforementioned frame deflector coil respectively, and the position is provided with the deflection system that correcting coil forms above the outer peripheral face of the electron gun side bend of aforementioned each deflecting coil, it is characterized in that, in the position of more leaning on the electron gun side rear than the electron gun side bend of aforementioned each deflecting coil, on the aforementioned dielectric framework, the state that is fixed with position relation is provided with to install use parts, and the aforementioned corrected coil is arranged on position above the outer peripheral face of aforementioned electronic rifle lateral bending pars convoluta to be located in aforementioned installation with the state on the wall of the screen-oriented of parts.
2. as the said deflection system of claim 1, it is characterized in that aforementioned installation is integrally formed with parts and aforementioned dielectric framework.
3. as claim 1 or 2 said deflection systems, it is characterized in that the aforementioned corrected coil can freely constituting with parts with respect to aforementioned installation with installing and removing.
4. as claim 1 or 2 said deflection systems, it is characterized in that, the aforementioned corrected coil have foot towards the magnetic core of the electron gun side bend direction of aforementioned deflecting coil, be installed on this magnetic core be wound with the coil of conductive wire skeleton and and aforementioned magnetic core between the fixed part fixed substantially of position relation, locate with realizing on the parts by this fixed part being fixed on aforementioned installation.
5. as the said deflection system of claim 4, it is characterized in that aforementioned installation has breach with parts, the aforementioned fixation parts have the claw that can fasten with aforementioned breach.
6. as the said deflection system of claim 5, it is characterized in that, aforementioned installation parts are tabular parts, aforementioned breach is located at the ora terminalis of aforementioned installation with parts, aforementioned installation is shaped like this with parts,, is being provided with the part of aforementioned breach that is, with compare near the electron gun side rear of aforementioned electronic rifle lateral bending pars convoluta, its width is narrower.
7. as the said deflection system of claim 4, it is characterized in that the aforementioned fixation parts have to be plugged on and are arranged at aforementioned installation with the jut in the patchhole on the parts.
8. as the said deflection system of claim 4, it is characterized in that the aforementioned fixation parts have to be entrenched in and are arranged at the telescoping part of aforementioned installation with the trench portions on the parts.
9. as the said deflection system of claim 4, it is characterized in that, be provided with flange at the two ends of aforementioned coil rack, the end of this flange contacts with parts with aforementioned installation, carries out correcting coil and is installing with the location on the parts.
10. as the said deflection system of claim 4, it is characterized in that aforementioned magnetic core is the U-shaped magnetic cores of two foots towards the electron gun side bend direction of aforementioned deflecting coil, aforementioned coil rack is installed in about central part of this U-shaped magnetic core.
11., it is characterized in that aforementioned magnetic core is the E shape magnetic core of each foot towards the electron gun side bend of aforementioned deflecting coil as the said deflection system of claim 4, aforementioned coil rack is installed in the foot separately of this E shape magnetic core.
12. as the said deflection system of claim 4, it is characterized in that, aforementioned magnetic core comprises two foots towards the U-shaped magnetic core of the electron gun side bend direction of aforementioned deflecting coil and the one end I type magnetic core towards aforementioned electronic rifle lateral bending pars convoluta direction, and aforementioned coil rack is installed on the about central part and aforementioned I shape magnetic core of aforementioned U-shaped magnetic core.
13., it is characterized in that the aforementioned corrected coil can produce restraints the magnetic field that at least one side in the vertical misconvergence that is produced proofreaies and correct to the limit of caused misconvergence of coma aberration and array type electron gun as claim 1 or 2 said deflection systems.
14. as the said deflection system of claim 13, it is characterized in that, the aforementioned corrected coil, have two windings, these two magnetic fields that winding produced can be controlled respectively, thus make vertical misconvergence that limit bundle because of caused misconvergence of aforementioned coma aberration and array type electron gun produced the two obtain proofreading and correct.
15. colour display tube dence, the front panel and the cone that are formed with the phosphor screen face by inner surface constitute outer containment body, be provided with electron gun in the neck of aforementioned cone, outer surface in aforementioned cone is equipped with deflection system, it is characterized in that, aforementioned deflection system is that the horizontal deflection coil of saddle type and the frame deflector coil of saddle type set along inner peripheral surface and outer peripheral face to this horizontal deflection coil and the two Insulating frame that insulate of aforementioned frame deflector coil respectively, and the position is provided with correcting coil and the deflection system that constitutes above the outer peripheral face of the electron gun side bend of aforementioned each deflecting coil, in the position of more leaning on the electron gun side rear than the electron gun side bend of aforementioned each deflecting coil, on the aforementioned dielectric framework, the state that is fixed with position relation is provided with to install use parts, and the aforementioned corrected coil is arranged on position above the outer peripheral face of aforementioned electronic rifle lateral bending pars convoluta to be located in aforementioned installation with the state on the wall of phosphor screen of parts.
16., it is characterized in that aforementioned installation is integrally formed with parts and aforementioned dielectric framework as the said color picture tube of claim 15.
17., it is characterized in that the aforementioned corrected coil can freely constituting with parts with respect to aforementioned installation with installing and removing as claim 15 or 16 said color picture tubes.
18. as claim 15 or 16 said color picture tubes, it is characterized in that, the aforementioned corrected coil have foot towards the magnetic core of the electron gun side bend direction of aforementioned deflecting coil, be installed on this magnetic core be wound with the coil of conductive wire skeleton and and aforementioned magnetic core between the fixed part fixed substantially of position relation, locate with realizing on the parts by this fixed part being fixed on aforementioned installation.
19. as claim 15 or 16 said color picture tubes, it is characterized in that, can produce the magnetic field that at least one side in the vertical misconvergence that is produced proofreaies and correct is restrainted on the limit of caused misconvergence of coma aberration and array type electron gun.
20. as the said color picture tube of claim 19, it is characterized in that, the aforementioned corrected coil has two windings, these two magnetic fields that winding produced can be controlled respectively, thus make vertical misconvergence that limit bundle because of caused misconvergence of aforementioned coma aberration and array type electron gun produced the two obtain proofreading and correct.
CNB998152706A 1998-11-10 1999-10-29 Deflection yoke and color picture tube comprising the same Expired - Fee Related CN1155985C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31871298 1998-11-10
JP318712/1998 1998-11-10

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CN1155985C CN1155985C (en) 2004-06-30

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EP (1) EP1231625A4 (en)
JP (1) JP3939925B2 (en)
KR (1) KR100609195B1 (en)
CN (1) CN1155985C (en)
TW (1) TW444226B (en)
WO (1) WO2000028570A1 (en)

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JP2575390Y2 (en) * 1992-10-22 1998-06-25 三菱電機株式会社 Deflection yoke device for dot type color cathode ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7098584B2 (en) 2002-10-09 2006-08-29 Matsushita Electric Industrial Co., Ltd. Deflection yoke

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WO2000028570A1 (en) 2000-05-18
EP1231625A1 (en) 2002-08-14
CN1155985C (en) 2004-06-30
EP1231625A4 (en) 2006-08-23
JP3939925B2 (en) 2007-07-04
TW444226B (en) 2001-07-01
KR100609195B1 (en) 2006-08-02
KR20010080975A (en) 2001-08-25

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