WO2000028570A1 - Collet de deviation et tube cathodique couleurs comprenant ledit collet de deviation - Google Patents

Collet de deviation et tube cathodique couleurs comprenant ledit collet de deviation Download PDF

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Publication number
WO2000028570A1
WO2000028570A1 PCT/JP1999/006001 JP9906001W WO0028570A1 WO 2000028570 A1 WO2000028570 A1 WO 2000028570A1 JP 9906001 W JP9906001 W JP 9906001W WO 0028570 A1 WO0028570 A1 WO 0028570A1
Authority
WO
WIPO (PCT)
Prior art keywords
deflection
electron gun
coil
deflection yoke
core
Prior art date
Application number
PCT/JP1999/006001
Other languages
English (en)
Japanese (ja)
Inventor
Etsuji Tagami
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to EP99951138A priority Critical patent/EP1231625A4/fr
Priority to JP2000581671A priority patent/JP3939925B2/ja
Publication of WO2000028570A1 publication Critical patent/WO2000028570A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H01J29/762—Deflecting by magnetic fields only using saddle coils or printed windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least

Definitions

  • the present invention relates to a deflection yoke attached to a color picture tube (hereinafter, referred to as “CRT”) used for a television receiver or a computer display, and a CRT device using the deflection yoke.
  • CRT color picture tube
  • It relates to the structure of the deflection yoke. Background art
  • FIG. 1 is a schematic cross-sectional view schematically showing the structure of a deflection yoke of a conventional bend-up press type.
  • the deflection yoke 6 of the bend-up press type has a saddle-type horizontal deflection coil 11 attached along the inner peripheral surface of the insulating frame 13. It has a saddle-type vertical deflection coil 12 that is mounted along the surface between the light core 14 and the electron beam of the horizontal deflection coil 11 and the vertical deflection coil 12.
  • the gun-side bend portion 17 (portion surrounded by a dotted line in the figure) has a structure substantially along the outer peripheral surface of the CRT funnel 4.
  • reference numeral 15 denotes a so-called VCR (vertical coma aberration) or side beam (R) which is provided on the outer peripheral portion of the electron lens 5 from the main lens portion 51 of the electron gun 5 in a direction slightly forward of the electron beam.
  • B) shows a correction coil that corrects the vertical misconvergence generated in (B), and 31 in the figure indicates a back cover, small cover, etc. for fixing the correction coil 15. (Hereinafter referred to as “back cover 31”), and their functions will be described later.
  • back cover 31 In general, as the saddle-type deflection coil is located closer to the electron gun, the center of deflection is positioned closer to the electron gun, improving deflection sensitivity and deflecting the electron beam with low power.
  • the deflection yoke of the bend upless type is, for example, a deflection yoke of a conventionally used bend type, i.e., an electron gun side bend portion of a deflection coil is directed outward from the outer peripheral surface of the funnel.
  • the deflection coil can be arranged closer to the electron gun side than the deflection yoke having a protruding structure, so the deflection sensitivity is higher than the deflection yoke of the above-mentioned bend-up type.
  • the deflection power can be saved.
  • the bending yoke of the bend-up press type has the advantages described above, but the deflection yoke of the conventional bend-up type may cause inefficiencies in the manufacturing process due to its structure. There was a problem that there is.
  • the correction coil 15 is to be arranged above the electron gun side bend section 17 in the bending yoke of the bend-up pre-type, a member for fixing and positioning the correction coil 15 is provided by the electron gun.
  • a member for fixing and positioning the correction coil 15 is provided by the electron gun.
  • the insulating frame 13 and the member to be protruded are to be integrally molded, when the deflection yoke is assembled, it is inserted into a gap between the protruding portion and the insulating frame 13. This is because the vertical deflection coils 12 must be installed, which makes assembly impossible or extremely inefficient.
  • FIG. 1 the back cover 31 shown in Fig. 1 was used.
  • Correction coil 15 is attached to back cover 31 in advance After the vertical deflection coil 12 is attached to the insulating frame 13, the correction coil 15 is fixed and positioned by being inserted from the electron gun side of the insulating frame 13. .
  • the present invention has been made in view of the above-described problems, and particularly when assembling a bend-up press-type deflection yoke, the assembly can be facilitated and the manufacturing cost can be reduced. It is an object of the present invention to provide a deflection yoke that can perform the above-described operation, and a CRT device using the deflection yoke. Disclosure of the invention
  • the saddle-type horizontal deflection coil and the saddle-type vertical deflection coil are provided in an insulating frame that insulates the horizontal deflection coil from the vertical deflection coil.
  • a deflection yoke provided along a peripheral surface and an outer peripheral surface, wherein a correction coil is provided at a position above an outer peripheral surface of an electron gun side bend portion of each of the deflection coils;
  • An installation member is provided at a position behind the electron gun side bend portion on the electron gun side in a state where the positional relationship is fixed with respect to the insulating frame, and the correction coil is a screen of the installation member.
  • the electron gun is provided at a position above the outer peripheral surface of the electron gun-side bend in a state of being positioned on a wall surface facing the fan.
  • the correction coil can be easily mounted after the vertical deflection coil has been mounted on the insulating frame, so that the deflection yoke of the bend-up press type can be easily assembled.
  • the installation member is formed integrally with the insulating frame, it is not necessary to use a back cover which has been conventionally used. In addition to reducing the cost, the process of inserting the back cover is not required, so that the manufacturing cost of the deflection yoke can be reduced.
  • the correction coil is configured to be detachable from the installation member, it is convenient for maintenance when a failure occurs in the correction coil or each deflection coil.
  • FIG. 1 is a schematic sectional view showing the structure of a deflection yoke of a conventional bend upless type.
  • FIG. 2 is a schematic sectional view showing an example of the structure of a CRT device to which the present invention is applied.
  • FIG. 3 is a perspective view showing an example of the structure of the deflection yoke 6 according to the embodiment of the present invention.
  • FIG. 4 is a longitudinal sectional view (side view of the correction coil 15) schematically showing the structure of the deflection yoke 6 according to the embodiment of the present invention.
  • FIG. 5 is a three-view drawing showing an example of the structure of the correction coil 15 in the present embodiment.
  • FIG. 6 is an enlarged view showing a portion for fixing the correction coil 15 in the deflection yoke 6 according to the present embodiment.
  • FIG. 7 is a diagram illustrating a state of a magnetic field by the correction coil 15 using the U-shaped core.
  • FIG. 8 is a pattern diagram of the misconvergence due to vertical coma aberration (VCR).
  • FIG. 9 is a pattern diagram of the vertical misconvergence generated in the side beams (R, B).
  • FIG. 10 is a diagram illustrating a state of a magnetic field by the correction coil 15 using the E-shaped core.
  • FIG. 11 is a perspective view showing an example of the structure of a deflection yoke 6 using an E-shaped core.
  • FIG. 12 is a diagram illustrating a state of a magnetic field by a correction coil 15 using a combination of a U-shaped core and an I-shaped core.
  • FIG. 13 is a perspective view showing an example of the structure of a deflection yoke 6 using a combination of a U-shaped core and an I-shaped core.
  • FIG. 14 shows the deviation when fixing the correction coil 15 by providing an insertion hole 31 in the flat plate 16 and inserting the tip of the fixing member 26 into the insertion hole 31.
  • FIG. 4 is a perspective view showing an example of the structure of a yoke 6.
  • FIG. 15 is an enlarged view of a part of the insertion hole 31.
  • FIG. 16 is a perspective view showing an example of the structure of the deflection yoke 6 when the portion where the correction coil 15 of the flat plate 16 is mounted is narrower than other portions.
  • FIG. 2 is a schematic sectional view showing an example of the structure of a CRT device to which the present invention is applied.
  • a front panel 3 having a phosphor screen 2 formed on the inner surface and a funnel 4 constitute an envelope, and the inside of the network of the funnel 4 is formed.
  • An electron gun 5 that emits an electron beam 7 is installed in the vehicle.
  • the deflection yoke 6 according to the present invention is mounted on the neck of the funnel 4 along the outer surface of the funnel 4.
  • FIG. 3 is a perspective view showing an example of the structure of the deflection yoke 6 in the present embodiment, and FIG.
  • FIG. 4 is a longitudinal sectional view schematically showing the structure of the deflection yoke 6 (a side view is shown for the correction coil 15). ).
  • the illustration of the CRT funnel 4, the electron gun 5, and the deflection yoke 6 of the X-light core 14 shown in FIG. 4 is omitted in FIG.
  • the deflection yoke 6 in this embodiment includes a saddle-type horizontal deflection coil 11 provided along the outer curved surface of the funnel 4 and a saddle-type horizontal deflection coil 11 provided outside the horizontal deflection coil 11.
  • Dollar-shaped vertical deflection coil 12, insulating frame 13 that insulates horizontal deflection coil 11 from vertical deflection coil 12, and vertical deflection coil 1 2 includes a ferrite core 14 provided on the outside and a correction coil 15 provided on the outside of the main lens 51 of the electron gun 5 in the direction of the electron beam emission.
  • the bend 17 on the electron gun side (portion surrounded by the dotted line in the figure) is a deflection yoke of a bend-upless type that has a structure almost along the outer peripheral surface of the CRT funnel 4. is there.
  • a flat plate 16 substantially parallel to the screen surface of the CRT device 1 is provided integrally with the insulating frame 13 at the rear side of the insulating frame 13 on the electron gun side.
  • the screen surface side of the flat plate 16 (hereinafter, the forward side of the electron beam in the traveling direction is referred to as the “screen surface side”, and the opposite direction is referred to as the “electron gun side”.
  • the term “rear part on the side of the gun” means that the correction coil 15 is fixed to the electron gun and is located closer to the electron gun than the tip of the electron gun 5). Has been established.
  • the gist of the present invention is that the correction coil 15 is positioned on the screen surface side of the flat plate 16 as described above.
  • the insulating frame 13 and the flat plate 16 are integrally formed. This makes it possible to reduce the number of parts, which is suitable for reducing the manufacturing cost.However, the insulating frame 13 and the flat plate 16 are formed as separate members, and the correction coil is used. Prior to mounting 15, for example, both may be assembled before mounting the vertical deflection coil 12. This is because, even in such a case, the effect of facilitating the manufacture of the deflection yoke 6 can be obtained as compared with the related art.
  • the correction coil 15 is fixed upward and downward as viewed from the screen surface, and the correction coil 15 is fixed from the flat plate 16 to the electron gun side bend portion 17. It is provided so as to protrude on the outer peripheral surface, and is detachably fixed to the flat plate 16.
  • FIG. 5 is a three-view drawing showing an example of the structure of the correction coil 15 in the present embodiment.
  • the correction coil 15 is composed of a U-shaped core 22 made of a flat body with both legs directed toward the electron gun-side bend 17, and a pobin mounted at the center of the bottom of the U-shaped core 22. 23, a pair of flanges 25 provided at both ends of the bobbin 23, and fixing members 26 fixed to both ends of the bottom of the U-shaped core 22.
  • a conductor (not shown) is wound.
  • the fixing member 26 is formed of plastic, and fixed with the U-shaped core 22 and an adhesive.
  • the brim portion 25 abuts on the screen side surface of the flat plate 16, and the correction coil 15 extends from the flat plate 16.
  • the claw 27 provided at the tip of the fixing member 26 is engaged with the rectangular cutout 28 provided at the edge of the flat plate 16.
  • FIG. 6 is an enlarged view of a portion where the notch portion 28 and the claw portion 27 are engaged.
  • the positioning of the correction coil 15 is facilitated by providing the brim portion 25.
  • the claw portion 27 and the notch portion 2 are provided. In some cases, it is possible to position the correction coil 15 by engagement with the shaft 8, and in such a case, it may be unnecessary to provide the collar 25.
  • the correction coil 15 in the present embodiment has a U-shaped ferrite core 22 wound with a conducting wire 24 as shown in FIG. 7, and generates a six-pole magnetic field synchronized with vertical deflection. It is used to optimally correct the VCR whose pattern is shown in Fig. 8, and to further wind another wire and control the magnetic field generated by that wire, thereby making the same core 22 4 poles It has the function of generating a magnetic field and compensating for the longitudinal misconvergence of the side beams (R, B) whose pattern is shown in FIG. Since the operation of the correction coil 15 itself is already known, a detailed description thereof will be omitted, but it is possible to configure the correction coil 15 so as to correct both the VCR and the vertical misconvergence. Alternatively, it may be configured to correct only one of them.
  • an E-shaped ferrite core 29 having a leg 24 wound around each leg thereof may be used. Wear.
  • an example of the structure is provided with the correction coils 15 on the right and left sides when viewed from the screen surface. It is preferable to do so.
  • the correction coil 1 that corrects the longitudinal misconvergence of the VCR and the side beams (R, B) respectively. 5 can be configured in the same manner as the case where the character-shaped core 22 is used.
  • the U-shaped core 22 and the I-shaped core 30 may be combined to form the correction coil 15.
  • a correction coil 15 can be attached as shown in FIG. 13 as an example of the structure.
  • the structure in which the notch portion 28 is provided on the side surface portion of the flat plate 16 and is engaged with the claw portion 27 is the same as the deflection yoke 6 according to the present invention.
  • 5 is merely an example of a structure for mounting on the flat plate 16 and various other mounting methods are conceivable.
  • an insertion hole 31 is provided in the flat plate 16
  • a claw portion 27 provided at a distal end portion of the fixing member 26 is provided in an inner peripheral portion of the insertion hole 31.
  • the notch 28 may be engaged.
  • FIG. 15 is an enlarged view of the vicinity of the inlet hole 31 when the inlet hole 31 is provided.
  • the provision of the claw portion 27 and the like, and the configuration in which the correction coil 15 and the flat plate 16 are attached and detached independently means that, for example, a failure such as a correction coil 15 or a deflection coil occurs. It is convenient for maintenance of the CRT device in that it is possible to replace only one of them in the case of the above, but the present invention is not limited to the above. It is also possible to adopt a configuration in which an adhesive is used for bonding to the device. Even so, the effect of facilitating the manufacture of the deflection yoke is obtained.
  • the correction coil 15 is mounted on the flat plate 16 as shown in FIG. If the part to be formed is narrower than the other parts, the material used for forming the flat plate 16 can be saved, and the overall size of the flat plate 16 is better than that shown in the figure. It is of course possible to make it small. It should be noted that the various modifications as described above can be performed in any case, such as when the E-shaped light core 29 is used or when the I-shaped core 30 is used together. It goes without saying that the same can be applied.
  • the plane plate 16 has a thickness of, for example, 2 [mm].
  • Z _ 2 to 0 [mm].
  • the deflection yoke of the present invention can be easily assembled.
  • the insulating frame 13 and the flat plate 16 are integrally formed, a separate member from the insulating frame 13 required for the deflection yoke of the conventional bent-up type is required. It is possible to provide the same function of fixing the correction coil as before without using the back cover. Also, by adjusting the size of the fixing member 26 and the brim portion 25, the correction coil 15 can be installed at an arbitrary position.
  • the flat plate 16 is used as a member for fixing the correction coil 15.
  • this is not limited to the flat plate. Any shape can be used as long as it can be fixed in position.
  • the core 22 of the correction coil 15 and the fixing member 26 is bonded with an adhesive, but various modifications are also conceivable.
  • a fixing member 26 and a brim portion 25, a bobbin 23 and the like are integrally formed with a component and a flange.
  • the correction coil 15 can also be made from a light core, conductor, etc.
  • the present invention is applied to the bending type of the bent-up press type has been described in detail, but the scope of the present invention is limited to the bending yoke of the bend-up type.
  • the correction coil can be arranged on the screen side of the flat plate even in the bend-up type deflection yoke. This is effective when you do not want the magnetic field of the coil to leak into the electron gun.
  • the scope of application of the present invention is not limited to the deflection convergence of the self-convergence method. It is conceivable that a deflection coil other than the self-convergence method needs to be provided with a correction coil at the bend portion of the deflection coil on the electron gun side.In such a case, the method of the present invention cannot be applied. Because it is possible. Therefore, the correction coil 15 is not limited to the one that corrects the vertical Misconvergence of the VCR and the side beam, and can be applied to various correction coils.
  • the deflection yoke and the CRT device of the present invention are particularly applicable to a television receiver or a computer display using a CRT device having a high deflection angle.

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

Abstract

L'invention concerne un collet de déviation produit facilement et à coût réduit, comprenant des bobines de déviation horizontale et verticale en forme de selle (11, 12) disposées le long des surfaces intérieure et extérieure d'un cadre d'isolation (13) ainsi qu'une bobine de correction (15) disposées au-dessus des surfaces périphériques extérieures des parties courbées du côté canon électronique des bobines de déviation. Un élément d'emboîtement (16) est disposé en relation fixe par rapport au cadre d'isolation (13) sur le côté canon électronique et derrière les parties courbées sur les bobines de déviation tandis que la bobine de correction (15) est située sur la paroi de l'élément d'emboîtement (16), face à l'écran.
PCT/JP1999/006001 1998-11-10 1999-10-29 Collet de deviation et tube cathodique couleurs comprenant ledit collet de deviation WO2000028570A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99951138A EP1231625A4 (fr) 1998-11-10 1999-10-29 Collet de deviation et tube cathodique couleurs comprenant ledit collet de deviation
JP2000581671A JP3939925B2 (ja) 1998-11-10 1999-10-29 偏向ヨーク及びそれを用いたカラー受像管装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31871298 1998-11-10
JP10/318712 1998-11-10

Publications (1)

Publication Number Publication Date
WO2000028570A1 true WO2000028570A1 (fr) 2000-05-18

Family

ID=18102146

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/006001 WO2000028570A1 (fr) 1998-11-10 1999-10-29 Collet de deviation et tube cathodique couleurs comprenant ledit collet de deviation

Country Status (6)

Country Link
EP (1) EP1231625A4 (fr)
JP (1) JP3939925B2 (fr)
KR (1) KR100609195B1 (fr)
CN (1) CN1155985C (fr)
TW (1) TW444226B (fr)
WO (1) WO2000028570A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306876A2 (fr) * 2001-10-23 2003-05-02 Matsushita Electric Industrial Co., Ltd. Tube image couleur
EP1339083A2 (fr) * 2002-02-21 2003-08-27 Matsushita Electric Industrial Co., Ltd. Tube a image couleur

Families Citing this family (2)

* 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
CN102360155A (zh) * 2011-10-13 2012-02-22 李澄 互嵌拼接式超大背投硬幕

Citations (7)

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Publication number Priority date Publication date Assignee Title
JPS601490Y2 (ja) * 1979-01-10 1985-01-16 電気音響株式会社 偏向ヨ−ク
JPS63143727A (ja) * 1986-12-04 1988-06-16 Totoku Electric Co Ltd 偏向ヨ−ク装置
JPH0211711Y2 (fr) * 1984-10-19 1990-03-28
JPH0520250U (ja) * 1991-08-27 1993-03-12 株式会社村田製作所 偏向ヨーク装置
JPH0722846Y2 (ja) * 1989-03-27 1995-05-24 株式会社村田製作所 偏向ヨーク装置
JP2575390Y2 (ja) * 1992-10-22 1998-06-25 三菱電機株式会社 ドット・タイプのカラー陰極線管用偏向ヨーク装置
JP2577307Y2 (ja) * 1991-08-27 1998-07-23 株式会社村田製作所 偏向ヨーク装置

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Publication number Priority date Publication date Assignee Title
CN1017483B (zh) * 1988-06-27 1992-07-15 东芝株式会社 彩色显象管及偏转装置
JP3034896B2 (ja) * 1989-05-26 2000-04-17 株式会社東芝 カラー映像管装置
KR920001582Y1 (ko) * 1989-12-23 1992-03-05 삼성전관 주식회사 편향요크
FR2689679A1 (fr) * 1992-04-07 1993-10-08 Thomson Tubes & Displays Dispositif de déflexion des faisceaux d'électrons pour tubes à rayons cathodiques autoconvergent et corrigé en géométrie.

Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
JPS601490Y2 (ja) * 1979-01-10 1985-01-16 電気音響株式会社 偏向ヨ−ク
JPH0211711Y2 (fr) * 1984-10-19 1990-03-28
JPS63143727A (ja) * 1986-12-04 1988-06-16 Totoku Electric Co Ltd 偏向ヨ−ク装置
JPH0722846Y2 (ja) * 1989-03-27 1995-05-24 株式会社村田製作所 偏向ヨーク装置
JPH0520250U (ja) * 1991-08-27 1993-03-12 株式会社村田製作所 偏向ヨーク装置
JP2577307Y2 (ja) * 1991-08-27 1998-07-23 株式会社村田製作所 偏向ヨーク装置
JP2575390Y2 (ja) * 1992-10-22 1998-06-25 三菱電機株式会社 ドット・タイプのカラー陰極線管用偏向ヨーク装置

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Title
See also references of EP1231625A4 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306876A2 (fr) * 2001-10-23 2003-05-02 Matsushita Electric Industrial Co., Ltd. Tube image couleur
EP1306876A3 (fr) * 2001-10-23 2007-09-26 Matsushita Electric Industrial Co., Ltd. Tube image couleur
EP1339083A2 (fr) * 2002-02-21 2003-08-27 Matsushita Electric Industrial Co., Ltd. Tube a image couleur
EP1339083A3 (fr) * 2002-02-21 2003-11-19 Matsushita Electric Industrial Co., Ltd. Tube a image couleur
US6924590B2 (en) 2002-02-21 2005-08-02 Matsushita Electric Industrial Co., Ltd. Color picture tube device with distortion correction coils

Also Published As

Publication number Publication date
JP3939925B2 (ja) 2007-07-04
CN1155985C (zh) 2004-06-30
CN1332887A (zh) 2002-01-23
TW444226B (en) 2001-07-01
KR100609195B1 (ko) 2006-08-02
EP1231625A1 (fr) 2002-08-14
KR20010080975A (ko) 2001-08-25
EP1231625A4 (fr) 2006-08-23

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