KR20020030882A - Deflection yoke - Google Patents

Deflection yoke Download PDF

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Publication number
KR20020030882A
KR20020030882A KR1020000061215A KR20000061215A KR20020030882A KR 20020030882 A KR20020030882 A KR 20020030882A KR 1020000061215 A KR1020000061215 A KR 1020000061215A KR 20000061215 A KR20000061215 A KR 20000061215A KR 20020030882 A KR20020030882 A KR 20020030882A
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South Korea
Prior art keywords
beams
deflection yoke
electron
field controller
holes
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KR1020000061215A
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Korean (ko)
Inventor
박종욱
한재범
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이형도
삼성전기주식회사
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Priority to KR1020000061215A priority Critical patent/KR20020030882A/en
Publication of KR20020030882A publication Critical patent/KR20020030882A/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
    • H01J29/701Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/702Convergence correction arrangements therefor
    • 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
    • H01J29/48Electron guns

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

Abstract

PURPOSE: A deflection yoke convergence correction structure in a CRT is provided to correct miss convergence of R and B beams in contradiction to the G beams by reducing eddy currents. CONSTITUTION: A deflection yoke convergence correction structure in a CRT comprises an electron gun, a field controller(100), and branch units(200). The electron gun is mounted on the neck part, emits electron beams, and includes many electrodes focusing the electron beams. The field controller(100) is mounted on one side of the electrodes of the electron gun, and includes through holes(110,120,130) in which R, G, and B beams pass through therein. The branch units(200) are formed around the through holes(100,130) which R and B beams of the field controller pass through therein.

Description

음극선관의 편향요크 컨버젼스 보정구조{Deflection yoke}Deflection yoke convergence correction structure of cathode ray tube {Deflection yoke}

본 발명은 음극선관에 관한 것으로서, 보다 상세하게는 음극선관의 네크부에 설치되어 전자빔의 편향을 도모하는 편향요크(deflection yoke)의 컨버젼스 보정구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cathode ray tube, and more particularly, to a convergence correction structure of a deflection yoke provided in the neck portion of a cathode ray tube to achieve deflection of an electron beam.

도 1에서와 같이 일반적인 음극선관(10)은, 형광막이 도포된 스크린부(11)와, 전자총(20)이 내장되는 네크부(12)로 이루어져 있으며, 네크부(12) 외측에는 전자총(20)으로 부터 주사되는 전자빔을 스크린부(11)의 정확한 위치로 편향시키기 위한 편향요크(deflection yoke;30)가 결합된다.As shown in FIG. 1, a general cathode ray tube 10 includes a screen portion 11 coated with a fluorescent film, and a neck portion 12 in which an electron gun 20 is embedded, and an electron gun 20 outside the neck portion 12. The deflection yoke 30 is combined to deflect the electron beam scanned from the X-ray to the correct position of the screen portion 11.

따라서 전자총(20)으로 부터 R,G,B전자빔이 주사되면 편향요크(30)에 의해 편향되어 스크린부(11)의 정확한 위치에 도달함으로써 화상을 재현하게 되는 것이다.Therefore, when the R, G, B electron beams are scanned from the electron gun 20, the deflection yoke 30 is deflected to reach the correct position of the screen portion 11 to reproduce the image.

한편, 이러한 음극선관(10)에 있어서, 도시되지는 않았지만, 전자총(20)내에는 다수의 전극들이 마련되어 전자빔을 포커싱하도록 되어 있고, 특히 도 2 및 도 3에서와 같이 G빔의 감도를 조절하기 위한 필드 콘트롤러(field controller;40)가 마련된다.On the other hand, in this cathode ray tube 10, although not shown, a plurality of electrodes are provided in the electron gun 20 to focus the electron beam, in particular to adjust the sensitivity of the G beam as shown in Figs. A field controller 40 is provided for this purpose.

이 필드 콘트롤러(40)는 자성체로 성형된 것으로서, R,G,B빔이 통과되도록 관통구멍(41,42,43)이 형성되며, 편향요크(30)의 누설자속의 빔에 작용하는 힘을 센터빔과 사이드 빔과의 차를 생기게 해서 수직 및 수평방향의 G빔감도를 조절하는 것이다.The field controller 40 is formed of a magnetic material. Through holes 41, 42, and 43 are formed so that the R, G, and B beams pass, and the force acting on the beam of the leakage flux of the deflection yoke 30 is applied. By creating a difference between the center beam and the side beam, the G beam sensitivity in the vertical and horizontal directions is adjusted.

그러나 이러한 필드 콘트롤러(40)를 채용함에 있어서는, 도 4에 나타내 보인 바와 같이 화면의 양측에서 G빔 대비 R,B빔이 소정의 차이가 발생되는 일종의 미스 컨버젼스가 야기된다.However, in employing such a field controller 40, as shown in FIG. 4, a kind of misconvergence occurs in which a predetermined difference occurs between the R beam and the B beam on both sides of the screen.

이러한 문제점은 필드 콘트롤러(40)상의 관통구멍(41,42,43) 특히 R,B빔이통과되는 관통구멍(41,43)상에서 발생되는 맴돌이 전류(eddy current) 때문에 발생된다.This problem is caused by eddy currents generated in the through holes 41, 42 and 43 on the field controller 40, in particular through holes 41 and 43 through which the R and B beams pass.

이와같은 문제점을 해결하고자 종래에는 R,B빔이 통과되는 관통구멍(41,43) 주변부에 분기부(44,45)를 형성하여 이 분기부(44,45)가 일종의 저항체 역할을 하도록 함으로써 맴돌이 전류를 약화시키도록 하고 있으나, 어느정도 한계가 있어 도 4에서와 같은 미스 컨버젼스 현상을 방지할 수 없었다.In order to solve such a problem, conventionally, branch portions 44 and 45 are formed around the through holes 41 and 43 through which the R and B beams pass, so that the branch portions 44 and 45 serve as a kind of resistor. Although the current is to be weakened, there is a limit so that the miss convergence phenomenon as shown in FIG. 4 cannot be prevented.

본 발명은 이와같은 종래의 문제점을 해결하기 위하여 창출된 것으로서, 필드 콘트롤러상에 충분한 저항을 형성함으로써 맴돌이 전류를 약화시켜 G빔 대비 R,B빔의 미스 컨버젼스를 보정할 수 있도록 한 음극선관의 편향요크 컨버젼스 보정구조를 제공함에 그 목적이 있다.The present invention was created to solve such a conventional problem, by forming a sufficient resistance on the field controller to reduce the eddy current to compensate for the misconvergence of the R and B beams compared with the G-beams. The purpose is to provide a yoke convergence correction scheme.

도 1은 일반적인 음극선관의 단면도.1 is a cross-sectional view of a typical cathode ray tube.

도 2 및 도 3은 종래 필드 콘트롤러의 여러 실시예를 보인 평면도들.2 and 3 are plan views showing various embodiments of a conventional field controller.

도 4는 종래 필드 콘트롤러의 채용시 발생되는 미스 컨버젼스 상태를 보인 구성도.4 is a configuration diagram showing a misconvergence state generated when employing a conventional field controller.

도 5 및 도 6은본 발명에 따른 컨버젼스 보정구조에 있어서, 필드 콘트롤러를 발췌하여 나타낸 평면도 및 요부 발췌 단면도.5 and 6 are a plan view and an excerpt sectional view showing an extract of the field controller in the convergence correction structure according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 : 음극선관20 : 전자총10: cathode ray tube 20: electron gun

30 : 편향요크100 : 필드 콘트롤러30: deflection yoke 100: field controller

110,120,130 : (R,G,B전자빔 통과용)관통구멍110,120,130: Through hole (for passing R, G, B electron beam)

200 : 분기부200: branch

이와같은 목적을 달성하기 위하여 본 발명에 따른 음극선관의 편향요크 컨버젼스 보정구조는, 음극선관의 네크부내에 장착되며, 전자빔을 방사하며, 전자빔의 포커싱을 행하는 다수의 전극이 마련된 전자총과; 상기 전자총의 일측 전극상에 마련되며, 적어도 2개이상 복수 적층되어 형성되며 R,G,B전자빔이 통과되는 관통구멍이 형성된 필트 콘트롤러와; 상기 필트 콘트롤러의 R,B빔이 통과되는 관통구멍 주변부에 형성되는 분기부;로 이루어진 것을 그 특징으로 한다.In order to achieve the above object, the deflection yoke convergence correction structure of the cathode ray tube according to the present invention includes: an electron gun mounted in the neck portion of the cathode ray tube, the electron gun provided with a plurality of electrodes for emitting an electron beam and focusing the electron beam; A filter controller provided on one electrode of the electron gun and formed by stacking at least two or more plurality and having through holes through which R, G, and B electron beams pass; And a branch formed at a periphery of the through hole through which the R and B beams of the filter controller pass.

본 발명의 바람직한 한 특징은, 상기 분기부는 R,B관통구멍을 중심으로 소정간격으로 복수 형성되는 것에 있다.One preferred feature of the present invention is that a plurality of branch portions are formed at predetermined intervals with respect to the R and B through holes.

이하 본 발명에 따른 음극선관의 편향요크 컨버젼스 보정구조의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, a preferred embodiment of a deflection yoke convergence correction structure of a cathode ray tube according to the present invention will be described in detail with reference to the accompanying drawings.

도 5는 본 발명에 따른 음극선관의 편향요크 컨버젼스 보정구조에 있어서, 필드 콘트롤러를 발췌하여 나타낸 평면도이고, 도 6은 요부 발췌 단면도이다.5 is a plan view showing the field controller in the deflection yoke convergence correction structure of the cathode ray tube according to the present invention, and FIG.

그리고 이하에서는 도 1 내지 도 3을 참조하여 설명하며 동일부품에는 동일한 부호를 부여하였다.Hereinafter, a description will be given with reference to FIGS. 1 to 3, and like reference numerals refer to like parts.

먼저 도 1 내지 도 3을 참조하면, 음극선관(10)은, 형광막이 도포된 스크린부(11)와, 전자총(20)이 내장되는 네크부(12)로 이루어져 있으며, 네크부(12) 외측에는 전자총(20)으로 부터 주사되는 전자빔을 스크린부(11)의 정확한 위치로 편향시키기 위한 편향요크(deflection yoke;30)가 결합된다.First, referring to FIGS. 1 to 3, the cathode ray tube 10 includes a screen part 11 coated with a fluorescent film, and a neck part 12 in which an electron gun 20 is embedded, and the neck part 12 outside of the neck part 12. The deflection yoke 30 is coupled to deflect the electron beam scanned from the electron gun 20 to the correct position of the screen portion 11.

따라서 전자총(20)으로 부터 R,G,B전자빔이 주사되면 편향요크(30)에 의해 편향되어 스크린부(11)의 정확한 위치에 도달함으로써 화상을 재현하게 되는 것이다.Therefore, when the R, G, B electron beams are scanned from the electron gun 20, the deflection yoke 30 is deflected to reach the correct position of the screen portion 11 to reproduce the image.

한편, 이러한 음극선관(10)에 있어서, 도시되지는 않았지만, 전자총(20)내에는 다수의 전극들이 마련되어 전자빔을 포커싱하도록 되어 있고, 특히 도 2 및 도 3에서와 같이 G빔의 감도를 조절하기 위한 필드 콘트롤러(field controller;100)가 마련된다.On the other hand, in this cathode ray tube 10, although not shown, a plurality of electrodes are provided in the electron gun 20 to focus the electron beam, in particular to adjust the sensitivity of the G beam as shown in Figs. A field controller 100 is provided.

이 필드 콘트롤러(100)는 실질적으로 본 발명의 특징적인 요소를 갖는 것으로서, 자성체로 성형되며, 전면에는 R,G,B빔이 통과되도록 관통구멍(110,120,130)이 형성된다.The field controller 100 has substantially the features of the present invention, and is formed of a magnetic material, and through holes 110, 120, and 130 are formed on the front surface thereof so that the R, G, and B beams pass therethrough.

이러한 필드 콘트롤러(100)의 주된 기능은 편향요크(30)의 누설자속의 빔에 작용하는 힘을 센터빔과 사이드 빔과의 차를 생기게 해서 수직 및 수평방향의 G빔감도를 조절하는 것이다.The main function of the field controller 100 is to adjust the G beam sensitivity in the vertical and horizontal directions by making a difference between the center beam and the side beam by applying a force acting on the beam of the leakage flux of the deflection yoke 30.

한편, 전술한 필드 콘트롤러(100)는 적어도 2개이상의 자성체를 적층 형성하여 형성된다.On the other hand, the above-described field controller 100 is formed by stacking at least two magnetic materials.

또한 필드 콘트롤러(100)의 관통구멍(110,120,130)중 R,B빔이 통과되는 관통구멍(110,130)의 주변에는 분기부(200)가 형성되며, 이 분기부(200)는 특히 도 5에서와 같이 관통구멍(110,130)을 중심으로 하여 적어도 2개 일정간격으로 복수 형성된다.In addition, a branch portion 200 is formed around the through holes 110 and 130 through which the R and B beams pass among the through holes 110, 120 and 130 of the field controller 100, and the branch portion 200 is particularly shown in FIG. 5. A plurality of the plurality of through holes 110 and 130 are formed at regular intervals.

이러한 구성을 갖는 본 발명은, 필드 콘트롤러(100)를 채용함에 있어서는, 도 4에 나타내 보인 바와 같이 R,B빔이 통과되는 관통구멍(110,130) 주변부에서 발생되는 맴돌이 전류(eddy current) 때문에 발생되는 미스 컨버젼스를 복수의 분기부(200)와 특히 필드 콘트롤러(100) 자체가 복수 적층 형성되는 것을 통해 보정할 수 있게된다.The present invention having such a configuration, when employing the field controller 100, is generated due to the eddy current generated in the periphery of the through holes 110 and 130 through which the R and B beams pass, as shown in FIG. The miss convergence can be corrected by stacking a plurality of branch parts 200 and in particular a plurality of field controllers 100 themselves.

이와같이 미스 컨버젼스를 보정할 수 있게되는 것은, 필드 콘트롤러(100)가 복수 적층 형성되어 있고, 분기부(200)가 역시 복수 마련된 것이어서, 이들이 맴돌이 전류의 발생시 도 5 및 도 6에서와 같이 저항역활을 행하는 것이기 때문에 맴돌이 전류가 최대한 억제되기 때문이다.The misconvergence can be corrected in this way because a plurality of field controllers 100 are stacked and a plurality of branching units 200 are provided, so that when the eddy current is generated, they act as resistances as shown in FIGS. 5 and 6. This is because eddy currents are suppressed as much as possible.

따라서 미스 컨버젼스를 보정할 수 있게되는 것이다.Therefore, it is possible to correct miss convergence.

상술한 바와 같이 본 발명에 따른 음극선관의 편향요크 컨버젼스 보정구조에 의하면, 필드 콘트롤러의 채용시 발생되는 맴돌이 전류를 수의 분기부와 필드 콘트롤러 자체의 적층을 통해 억제할 수 있게됨으로써 미스 컨버젼스를 보정할 수 있게된다.As described above, according to the deflection yoke convergence correction structure of the cathode ray tube according to the present invention, the eddy current generated when the field controller is employed can be suppressed through stacking of the number of branches and the field controller itself, thereby correcting the miss convergence. Will be.

따라서 안정된 화상 구현을 도모할 수 있는 이점이 있다.Therefore, there is an advantage that can achieve stable image implementation.

Claims (2)

음극선관의 네크부내에 장착되며, 전자빔을 방사하며, 전자빔의 포커싱을 행하는 다수의 전극이 마련된 전자총과;An electron gun mounted in the neck portion of the cathode ray tube and provided with a plurality of electrodes for emitting an electron beam and focusing the electron beam; 상기 전자총의 일측 전극상에 마련되며, 적어도 2개이상 복수 적층되어 형성되며 R,G,B전자빔이 통과되는 관통구멍이 형성된 필트 콘트롤러와;A filter controller provided on one electrode of the electron gun and formed by stacking at least two or more plurality and having through holes through which R, G, and B electron beams pass; 상기 필트 콘트롤러의 R,B빔이 통과되는 관통구멍 주변부에 형성되는 분기부;로 이루어진 것을 특징으로 하는 음극선관의 편향요크 컨버젼스 보정구조.And a branch formed at a periphery of the through hole through which the R and B beams of the filter controller pass. 제 1 항에 있어서, 상기 분기부는 R,B관통구멍을 중심으로 소정간격으로 복수 형성되는 것을 특징으로 하는 음극선관의 편향요크 컨버젼스 보정구조.The deflection yoke convergence correction structure according to claim 1, wherein a plurality of branch portions are formed at predetermined intervals about R and B through holes.
KR1020000061215A 2000-10-18 2000-10-18 Deflection yoke KR20020030882A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6438951A (en) * 1987-08-03 1989-02-09 Nec Corp In-line type electron gun structure
KR890003596Y1 (en) * 1985-10-08 1989-05-27 주식회사금성사 Cover opening device for video tape cassette
JPH01286237A (en) * 1988-05-12 1989-11-17 Nec Corp Electron gun body structure
JPH04181637A (en) * 1990-11-14 1992-06-29 Nec Corp In-line type electron gun body structure
KR920013569A (en) * 1990-12-12 1992-07-29 김정배 Electron gun for colored cathode ray tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR890003596Y1 (en) * 1985-10-08 1989-05-27 주식회사금성사 Cover opening device for video tape cassette
JPS6438951A (en) * 1987-08-03 1989-02-09 Nec Corp In-line type electron gun structure
JPH01286237A (en) * 1988-05-12 1989-11-17 Nec Corp Electron gun body structure
JPH04181637A (en) * 1990-11-14 1992-06-29 Nec Corp In-line type electron gun body structure
KR920013569A (en) * 1990-12-12 1992-07-29 김정배 Electron gun for colored cathode ray tube

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