KR0172482B1 - Misconvergence compensation equipment of deflection yoke - Google Patents

Misconvergence compensation equipment of deflection yoke Download PDF

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Publication number
KR0172482B1
KR0172482B1 KR1019950041818A KR19950041818A KR0172482B1 KR 0172482 B1 KR0172482 B1 KR 0172482B1 KR 1019950041818 A KR1019950041818 A KR 1019950041818A KR 19950041818 A KR19950041818 A KR 19950041818A KR 0172482 B1 KR0172482 B1 KR 0172482B1
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South Korea
Prior art keywords
deflection
correction
misconvergence
coil
deflection yoke
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KR1019950041818A
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Korean (ko)
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KR970030167A (en
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박정술
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구자홍
엘지전자주식회사
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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
    • H01J2229/00Details of cathode ray tubes or electron beam tubes
    • H01J2229/70Electron beam control outside the vessel
    • H01J2229/703Electron beam control outside the vessel by magnetic fields
    • H01J2229/7032Conductor design and distribution

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

Abstract

본 발명은 편향요크의 수직축상에서 발생하는 수직방향의 미스컨버젼스를 보정하기 위하여 보정코일을 투자율이 높은 철심에 위치시켜 보정회로를 통해 미스컨버젼스를 손쉽게 보정할 수 있게한 편향요크의 미스컨버젼스 보정장치에 관한 것으로 종래에는 편향요크의 재료특성, 조립공정에 의한 산포, 수직편향코일(1)의 자체적인 뒤틀림으로 상기 수직편향코일(1)이 수직방향으로 일정길이(T1)로 틀어지거나, 수평방향으로 일정길이(T2)로 틀어질 경우 라스트화면상에는 미스컨버젼스가 발생되어 고해상도를 필요로 하는 칼라모니터용 편향요크에서는 화면의 대형화, 고정세화에 대응하지 못하는 문제점이 있었다.The present invention provides a device for correcting misconvergence of deflection yoke, which makes it easy to correct misconvergence through a correction circuit by placing a correction coil on an iron core having a high permeability to correct misconvergence in the vertical direction occurring on the vertical axis of the deflection yoke. In the related art, the vertical deflection coil 1 is twisted by a predetermined length (T1) in the vertical direction or horizontally due to the material characteristics of the deflection yoke, the dispersion by the assembling process, and the internal deflection of the vertical deflection coil 1. In the case of a fixed length (T2), misconvergence is generated on the last screen, and a deflection yoke for color monitors requiring high resolution has a problem in that it cannot cope with large size and high definition.

본 발명은 이와같은 종래 문제점을 해결하기 위하여 투자율이 높은 철심에 보정코일을 위치시킨후 보정회로를 통해 미스컨버젼스를 보정하여 고해상도를 필요로 하는 칼라모니터용 편향요크에서의 화면대형화 및 고정세화에 대응할 수 있도록 한 것으로 편향요크에 적용한다.In order to solve such a conventional problem, the present invention can cope with large screen size and high resolution in deflection yokes for color monitors that require high resolution by correcting misconvergence through a correction circuit after placing a correction coil in an iron core having a high permeability. This applies to deflection yokes.

Description

편향요크의 미스컨버젼스 보정장치Misconvergence correction device of deflection yoke

제1도의 (a)는 종래 편향요크의 구조를 보인 평면도.Figure 1 (a) is a plan view showing the structure of a conventional deflection yoke.

(b)는 종래 편향요크의 구조를 보인 정면도.(b) is a front view showing the structure of a conventional deflection yoke.

제2도는 종래 정상상태일때의 편향코일 구조를 보인 단면도.2 is a cross-sectional view showing a deflection coil structure in a conventional steady state.

제3도는 정상상태일때의 보정코일 자계 분포도.3 is a magnetic field distribution map of the correction coil in the steady state.

제4도의 (a)는 종래 편향요크의 인라인 전자총의 편향자계 분포도.4A is a deflection field distribution diagram of an inline electron gun of a conventional deflection yoke.

(b)는 종래 편향요크의 인라인 전자총의 라스트화면 패턴도.(b) is the last screen pattern of the inline electron gun of the conventional deflection yoke.

제5도의 (a)는 수직방향으로 틀어진 편향코일의 비정상상태를 보인 단면도.Figure 5 (a) is a cross-sectional view showing an abnormal state of the deflection coil twisted in the vertical direction.

(b)는 수평방향으로 틀어진 편향코일의 비정상상태를 보인 단면도.(b) is a cross-sectional view showing an abnormal state of the deflection coil twisted in the horizontal direction.

제6도의 (a)는 정상상태일때의 라스트화면.(A) of FIG. 6 is a last screen in a steady state.

(b)는 적색빔 뜸에 의한 비정상 라스트화면.(b) is an abnormal last screen caused by red beam moxibustion.

(c)는 청색빔 뜸에 의한 비정상 라스트화면.(c) is an abnormal last screen caused by blue beam moxibustion.

(d)는 적색빔 와이드에 의한 비정상 라스트화면.(d) is an abnormal last screen caused by a red beam wide.

(e)는 적색빔 네로우에 의한 비정상 라스트화면.(e) is an abnormal last screen caused by red beam narrow.

제7도의 (a)는 본 발명에 의한 적색빔 뜸을 보정한 보정코일 자계 분포도.Figure 7 (a) is a correction coil magnetic field distribution diagram correcting the red beam moxibustion according to the present invention.

(b)는 본 발명에 의한 청색빔 뜸을 보정한 보정코일 자계 분포도.(b) is a correction coil magnetic field distribution diagram correcting blue beam moxibustion according to the present invention.

제8도는 본 발명 편향요크의 미스컨버젼스 보정회로도.8 is a misconvergence correction circuit of the deflection yoke of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

VL1,L2 : 수직편향코일 D1-D4 : 다이오드VL1, L2: Vertical deflection coil D1-D4: Diode

3 : 보정코일 VR1,VR2 : 가변저항3: correction coil VR1, VR2: variable resistor

본 발명은 편향요크의 수직축상에서 발생하는 수직방향의 미스컨버젼스를 보정하기 위하여 보정코일을 투자율이 높은 철심에 위치시켜 보정회로를 통해 미스컨버젼스를 손쉽게 보정할 수 있게한 편향요크의 미스컨버젼스 보정장치에 관한 것이다.The present invention provides a device for correcting misconvergence of deflection yoke, which makes it easy to correct misconvergence through a correction circuit by placing a correction coil on an iron core having a high permeability to correct misconvergence in the vertical direction occurring on the vertical axis of the deflection yoke. It is about.

일반적으로 편향요크란 제1도와 제2도에 도시된 바와같이 브라운관의 후면에 부착되어 전자총에서 방사된 전자빔을 상하편향시키는 수직편향코일(1)과, 좌우편향시키는 수평편향코일(2)과, 편향요크에서 필요로하는 보정자계(A)를 발생하는 보정코일(3)로 구성되어 크로스 형태의 화면 미스컨버젼스를 보정하도록 한 것이다.Generally, the deflection yoke is a vertical deflection coil 1 attached to the rear surface of the CRT and deflects the electron beam emitted from the electron gun, as shown in FIGS. 1 and 2, a horizontal deflection coil 2 for deflecting left and right, and It is composed of a correction coil (3) for generating a correction magnetic field (A) required in the deflection yoke to correct cross-screen misconvergence.

종래 미스컨버젼스를 보정하기 위한 편향요크를 제1도와 제2도에서와 같이 전자총에서 방사된 전자빔을 상하편향시키는 수직편향코일(1)을 수직방향으로 대칭되게 설치하고, 전자빔을 좌우편향시키는 수평편향코일(2)을 수평방향으로 설치하며, 상기 전자빔이 방사되는 전자총측에 보정자계(A)를 발생하는 보정코일(3)을 상하대칭되게 설치구성된 것이다.The deflection yoke for correcting the conventional misconvergence is vertically symmetrically provided with a vertical deflection coil 1 for vertically deflecting the electron beam emitted from the electron gun as shown in FIGS. 1 and 2, and a horizontal deflection for deflecting the electron beam from side to side. The coil 2 is installed in the horizontal direction, and the correction coil 3 generating the correction magnetic field A on the side of the electron gun from which the electron beam is radiated is configured to be arranged up and down.

이와같이 구성된 미스컨버젼스 보정을 위한 편향요크는 제1도내지 제3도에서와 같이 먼저 전자빔을 상하편향시키는 수직편향코일(1)과, 좌우편향시키는 수평편향코일(2)이 정상적으로 서로 대칭되게 설치되어 있을 경우 제4도의 (a)와같이 인라인 전자총의 편향자계의 수평편향 자계분포(H)상태 및 수직편향 자계분포(V) 상태가 수평,수직방향으로 서로 대칭되게 분포되어 제4도의 (b)와같이 전자총에서 방사된 전자빔(R,G,B)은 라스트화면상에서 상하방향으로 적색빔 라스트(R')및 청색빔 라스트(B')가 서로 대칭되게 미스컨버젼스가 보정된 영상이 디스플레이 된다.The deflection yoke for misconvergence correction configured as described above has a vertical deflection coil 1 for vertically deflecting the electron beam and a horizontal deflection coil 2 for deflecting left and right as shown in FIGS. 1 to 3. If present, the horizontal deflection magnetic field distribution (H) and the vertical deflection magnetic field distribution (V) states of the deflection magnetic field of the inline electron gun are distributed symmetrically in the horizontal and vertical directions as shown in (a) of FIG. As described above, the electron beams R, G, and B emitted from the electron gun are displayed in a misconvergence-corrected image such that the red beam last R 'and the blue beam last B' are symmetrical with each other in the vertical direction on the last screen.

그러나 종래에는 편향요크의 재료특성, 조립공정에 의한 산포, 수직편향코일(1)의 자체적인 뒤틀림으로 상기 수직편향코일(1)이 제5도의 (a)와같이 수직방향으로 일정길이(T1)로 틀어지거나, 수평방향으로 일정길이(T2)로 틀어질 경우 라스트화면상에는 제6도의 (b)-(e)와같은 현상이 발생되어 고해상도를 필요로 하는 칼라모니터용 편향요크에서는 화면의 대형화, 고정세화에 대응하지 못하는 문제점이 있었다.However, in the related art, the vertical deflection coil 1 has a predetermined length T1 in the vertical direction as shown in (a) of FIG. 5 due to the material characteristics of the deflection yoke, the dispersion by the assembling process, and the internal deflection of the vertical deflection coil 1. If it is twisted in the vertical direction or in the horizontal direction (T2), a phenomenon such as (b)-(e) in FIG. 6 occurs on the last screen. There was a problem that could not cope with high resolution.

본 발명은, 이와같은 종래 문제점을 해결하기 위하여 투자율이 높은 철심에 보정코일을 위치시킨후 보정회로를 통해 미스컨버젼스를 보정하여 고해상도를 필요로 하는 칼라모니터용 편향요크에서의 화면대형화 및 고정세화에 대응할 수 있도록 한 것으로 첨부된 도면에 의하여 본 발명의 구성 및 작용효과를 설명하면 다음과 같다.In order to solve such a conventional problem, the present invention is directed to a large screen and a high definition screen in a deflection yoke for a color monitor requiring high resolution by positioning a correction coil on a core having a high permeability and correcting misconvergence through a correction circuit. When explaining the configuration and effect of the present invention by the accompanying drawings as to cope with the following.

먼저 본 발명 미스컨버젼스 보정장치는 제3도와 제8도에 도시된 바와같이, 전자빔이 방사되는 편향요크의 전자총측에 보정자계(A)가 생성되는 보정코일(3A)(3B)(3C)(3D)을 상하측에 서로 대칭되도록 투자율이 높은 ㄷ자형 철심(4)에 설치하고, 저항(R1)(R2)과 병렬로 연결된 수직편향코일(Lv1)(Lv2)에서 편향 출력된 전류가 보정코일(3A)(3B)(3C)(3D)에 전달되게 다이오드(D1-D4)가 보정코일(3A)(3B)(3C)(3D)에 연결되며, 상기 다이오드(D1-D4)에 의해 보정코일(3A)(3B)(3C)(3D)에 흐르는 전류의 세기를 조절하도록 가변저항(VR1)(VR2)이 연결구성된 것이다.First, as shown in FIG. 3 and FIG. 8, the misconvergence correction apparatus of the present invention includes a correction coil (3A) (3B) (3C) in which a correction magnetic field (A) is generated on the electron gun side of the deflection yoke from which the electron beam is radiated. 3D) is installed on the U-shaped iron core 4 having a high permeability so as to be symmetrical with each other on the upper and lower sides, and the current output deflected from the vertical deflection coil Lv1 (Lv2) connected in parallel with the resistors R1 and R2 is a correction coil. The diodes D1-D4 are connected to the correction coils 3A, 3B, 3C, and 3D so that they are delivered to the 3A, 3B, 3C, and 3D, and corrected by the diodes D1-D4. The variable resistors VR1 and VR2 are connected to each other to adjust the strength of the current flowing through the coils 3A, 3B, 3C, and 3D.

이와같이 구성된 본 발명의 적용효과는 제3도와 제8도를 참고로 하여 설명하면 다음과 같다.The application effect of the present invention configured as described above will be described with reference to FIG. 3 and FIG.

먼저 편향요크의 재료특성, 조립공정상의 산표, 수직편향코일의 자체적인 뒤틀림 현상으로, 제5도의 (a)(b)와같이 수직편향코일(1)이 수직방향 또는 수평방향으로 일정길이(T1)(T2)로 뒤틀림이 발생하면 제6도의 (b)-(e)와같은 라스트현상에 의해 미스컨버젼스가 발생하게되므로 제6도의 (a)와같은 정상상태의 라스트화면을 얻도록 보정해야 한다.First of all, due to the material characteristics of the deflection yoke, the calculation of the assembly process, and the distortion of the vertical deflection coil itself, the vertical deflection coil 1 has a certain length (T1) in the vertical direction or the horizontal direction as shown in (a) (b) of FIG. If distortion occurs at (T2), misconvergence occurs due to the last phenomenon such as (b)-(e) of FIG. 6, and it should be corrected to obtain a steady state screen as shown in (a) of FIG. .

즉, 비정상상태의 수직편향코일(1)에 의해 수직방향으로 수직편향코일(1)이 일정길이(T1) 틀어졌을 경우 제6도의 (b)와같이 적색빔 뜸현상에 의해 미스컨버젼스가 발생하게 되므로 이를 보정해야 한다.That is, when the vertical deflection coil 1 is deviated by a predetermined length T1 in the vertical direction by the vertical deflection coil 1 in an abnormal state, misconvergence may occur due to the red beam moxibustion as shown in (b) of FIG. 6. This should be corrected.

따라서 적색빔 뜸현상에 의해 발생한 미스컨버젼스를 보정하기 위하여 먼제 제8도에 도시된 가변저항(VR1)을 일측방향(P)으로 조절하면 저항(R1)(R2)과 병렬로 연결된 수직편향코일(Lv1)(Lv2)을 통해 톱니파 파형전류(i)가 입력된다.Therefore, in order to correct the misconvergence caused by the red beam moxibustion, if the variable resistor VR1 shown in FIG. 8 is adjusted in one direction P, a vertical deflection coil connected in parallel with the resistors R1 and R2 ( Sawtooth waveform current i is input through Lv1) (Lv2).

이때 입력된 톱니파 파형전류(i)의 상측반주기는 전류의 방향을 조절하는 다이오드(D1)를 통해 일측방향(P)으로 조절된 가변저항(VR1)으로 흐르면, 상기 톱니파 파형전류(i)는 가변저항(VR1)에 의해 전류의 세기가 조절되어 투자율이 높은 ㄷ자형 철심(4)에 설치된 보정코일(3a)(3b)을 통하여 출력된다.At this time, the upper half cycle of the input sawtooth wave current (i) flows to the variable resistor VR1 adjusted in one direction (P) through the diode (D1) for controlling the direction of the current, the sawtooth wave current (i) is variable The strength of the current is controlled by the resistor VR1 and is output through the correction coils 3a and 3b provided in the U-shaped iron core 4 having a high permeability.

한편, 반대로 톱니파 파형전류(i)의 하측 반주기에서는 출력단자로 유입된 전류(i-1)가 다이오드(D1)에서 하측 반주기만 검출되므로서 보정코일(3a)(3d)을 통해 입력단자로 유출되게 된다.On the other hand, in the lower half period of the sawtooth wave current i, the current i-1 introduced into the output terminal is only detected by the lower half period of the diode D1 and flows out to the input terminal through the correction coils 3a and 3d. Will be.

따라서 보정코일(3a-3d)에는 가변저항(VR1)의 조정상태에 의하여 증가된 보정전류(i)와 보정되지 않은 전류(i1)가 서로 상이하게 흐르게 된다. (ii1)Therefore, the correction current i and the uncorrected current i1 increased due to the adjustment state of the variable resistor VR1 flow differently from the correction coils 3a-3d. (ii1)

즉, 제7도의 (a)에 도시된 바와같이 가변저항(VR1)에 의하여 투자율이 높은 철심(4)에 설치된 보정코일(3a)(3d)에는 증가된 보정전류에 의하여 증가된 보정자계가 생성되고, 다른 보정코일(3c)(3b)에는 보정되지 않은 보정자계가 생성되므로서, 상기 자계분포는 보정코일(3a)(3d)에서 강한 보정자계가 생성되면 상대적으로 보정코일(3c)(3b)에는 약한 보정자계가 생성되므로서, 화면 좌우방향에는 대칭되지 않은 보정자계(A1)를 생성하게 된다.That is, as shown in FIG. 7A, the correction magnetic field generated by the increased correction current is generated in the correction coils 3a and 3d installed in the iron core 4 having high permeability by the variable resistor VR1. The uncorrected correction magnetic field is generated in the other correction coils 3c and 3b, so that the magnetic field distribution is relatively corrected when the strong correction magnetic field is generated in the correction coils 3a and 3d. ), A weak correction magnetic field is generated, thereby generating a correction magnetic field A1 which is not symmetric in the left and right directions of the screen.

이와같이 화면 좌우대칭되지 않은 보정자계(A1)가 생성되면 인라인전자총(B.G.R 순서로 전자총이 배열된 순서)에서는 녹색빔(G)을 중심으로 적색빔(R)과 청색빔(B)에 미치는 편향력이 서로 다르게 되므로, 상기 청색빔(B)은 상측방향으로 강한 편향력(FB)이 하측에는 약한 편향력이 작용하고, 적색빔(R)은 상측방향으로 약한 편향력(FR)이 하측에는 강한 편향력이 작용하게 된다.(상측:FBFR, 하측:FBFR)In this way, when a corrected magnetic field A1 that is not symmetrical to the screen is generated, in-line electron guns (the order in which the electron guns are arranged in the BGR order) have a deflection force on the red beam (R) and the blue beam (B) around the green beam (G). Since the blue beam B has a strong deflection force F B in the upward direction, a weak deflection force acts on the lower side, and the red beam R has a weak deflection force F R in the upper direction. A strong deflection force acts on (upper side: F B F R , lower side: F B F R ).

따라서 좌우비대칭인 보정자계를 보정하면 제6도의 (a)와같이 미스컨버젼스가 일치된 정상상태의 라스트화면이 된다.Therefore, correcting the magnetic field that is asymmetrical left and right, as shown in (a) of FIG.

한편, 수직편향코일(1)이 수평방향으로 일정길이 뒤틀려 제6도의 (c)와같이 청색빔 뜸 현상이 발생되어 미스컨버젼스가 발생되면,On the other hand, if the vertical deflection coil 1 is distorted in a horizontal direction by a certain length, and the blue beam moxibustion phenomenon occurs as shown in (c) of FIG. 6, misconvergence occurs.

가변저항(VR1)을 타측방향(P')으로 조절하므로서 제7도의 (b)와같이 청색빔(B)은 상측으로 약한 편향력(FB)이 하측으로는 강한 편향력이 작용하고, 적색빔(R)은 상측으로 강한 편향력(FR)이 하측으로는 약한 편향력이 작용하게 되므로서 제6도의 (c)와같이 발생한 청색빔 뜸현상에 의한 화면 미스컨버젼스는 제6도의 (a)와같이 미스컨버젼스가 일치된 정상상태의 라스트화면이 된다.By adjusting the variable resistance VR1 in the other direction P ', the blue beam B has a weak deflection force F B upward and a strong deflection force downward on the blue beam B as shown in FIG. Since the beam R has a strong deflection force F R upward and a weak deflection force downward, the screen misconvergence caused by the blue beam moxibustion generated as shown in FIG. ), It becomes the last screen of normal state with misconvergence.

따라서 상기 설명한 바와같이 제6도의 (d)(e)와같이 적색빔와이드 및 적색빔 네로우 현상에 의해 발생한 미스컨버젼스는 가변저항(VR1)(VR2)을 조절하므로서 미스컨버젼스 보정이 가능하게 된다.Therefore, as described above, the misconvergence caused by the red beam wide and the red beam narrow phenomenon as shown in FIG. 6 (d) (e) can be adjusted by adjusting the variable resistors VR1 and VR2.

이상에서 설명한 바와같이 투자율이 높은 철심에 보정코일을 상측과 하측에 대향되게 설치하여 다이오드에 의해 보정코일에 흐르는 전류의 방향을 제어하고 가변저항을 조절하여 전류의 세기를 조절하므로서 보정코일에서 생성되는 보정자계를 일치시켜 수직편향코일의 뒤틀림으로 인해 발생하는 라스트화면의 미스컨버젼스를 보정하여 고해상도를 필요로 하는 칼라모니터용 편향요크에서 화면 대형화 및 고정세화에 대응할 수 있는 효과가 있다.As described above, the correction coil is installed on the iron core with high permeability so as to face the upper side and the lower side to control the direction of the current flowing through the correction coil by the diode, and to adjust the strength of the current by adjusting the variable resistance. By correcting the magnetic field by correcting the misconvergence of the last screen caused by the distortion of the vertical deflection coil, it is possible to cope with the enlargement and high resolution of the screen in the deflection yoke for color monitor requiring high resolution.

Claims (2)

저항(R1)(R2)과 병렬로 연결되어 편향전류를 출력시키는 수직편향코일(VL1)(VL2)과, 수직편향코일(VL1)(VL2)에 연결되어 편향전류의 방향을 제어하는 다이오드(D1-D4)와, 보정코일(3)에 흐르는 전류의 크기를 제어하는 가변저항(VR1)(VR2)과, 상기 수직편향코일(VL1)(VL2)에서 출력된 편향전류의 왜곡에 의해 미스컨버젼스 발생시 가변저항(VR1)(VR2)에 의해 제어된 전류의 크기에 따라 미스컨버젼스 보정용 보정자계를 생성하는 보정코일(3)로 구성된 편향요크의 미스컨버젼스 보정장치.The vertical deflection coil is connected to a resistance (R1) (R2) in parallel for outputting a deflection current (V L 1) (V L 2) , a vertical deflection coil (V L 1) is connected to the (V L 2) deflection current Diodes D1-D4 for controlling the direction of V, variable resistors VR1, VR2 for controlling the magnitude of the current flowing through the correction coil 3, and the vertical deflection coil V L 1 (V L 2). Misconvergence correction of the deflection yoke consisting of a correction coil (3) which generates a correction magnetic field for misconvergence correction according to the magnitude of the current controlled by the variable resistors VR1 and VR2 when misconvergence occurs due to the distortion of the deflection current output from Device. 제1항에 있어서, 보정자계가 생성되는 보정자계(3a)-(3d)는 투자율이 높은 ㄷ자형 철심(4)의 상측과 하측에 대칭되게 설치된 것을 특징으로 한 편향요크의 미스컨버젼스 보정장치.The deflection yoke misconvergence correction apparatus according to claim 1, wherein the correction magnetic fields (3a) to (3d), in which the correction magnetic field is generated, are symmetrically installed on the upper side and the lower side of the c-shaped iron core (4) having a high permeability.
KR1019950041818A 1995-11-17 1995-11-17 Misconvergence compensation equipment of deflection yoke KR0172482B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100443610B1 (en) * 2002-05-21 2004-08-09 엘지.필립스디스플레이(주) Color Cathode Ray Tube
KR100574579B1 (en) * 2003-01-06 2006-04-28 닛뽕빅터 가부시키가이샤 Deflection yoke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100443610B1 (en) * 2002-05-21 2004-08-09 엘지.필립스디스플레이(주) Color Cathode Ray Tube
KR100574579B1 (en) * 2003-01-06 2006-04-28 닛뽕빅터 가부시키가이샤 Deflection yoke

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