KR200280114Y1 - Cathode ray tube - Google Patents

Cathode ray tube Download PDF

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Publication number
KR200280114Y1
KR200280114Y1 KR2019960031371U KR19960031371U KR200280114Y1 KR 200280114 Y1 KR200280114 Y1 KR 200280114Y1 KR 2019960031371 U KR2019960031371 U KR 2019960031371U KR 19960031371 U KR19960031371 U KR 19960031371U KR 200280114 Y1 KR200280114 Y1 KR 200280114Y1
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South Korea
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ray tube
cathode ray
magnetic
nickel
purity correction
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KR2019960031371U
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Korean (ko)
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KR19980017972U (en
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최용석
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삼성에스디아이 주식회사
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Abstract

퓨리티보정용 자석조립체(20)의 안쪽에 보자력과 투자율이 높은 재료로 형성한 자계차폐막(12)을 부착하고, 펀넬(2)의 넥크부에 퓨리티보정용 자석조립체(20)를 장착한 음극선관을 제공한다.A cathode ray tube having a magnetic shielding film 12 formed of a material having high coercivity and permeability is attached to the inner side of the purity correction magnet assembly 20 and the magnetic assembly 20 for purity correction mounted to the neck of the funnel 2. do.

상기에서 자계차폐막(12)을 형성하는 보자력과 투자율이 높은 재료로는 니켈-철계 합금인 퍼멀로이를 사용하는 것이 바람직하다. 퍼멀로이는 니켈의 함유량이 70∼90%이고 철의 함유량이 30∼10%인 니켈-철계 합금으로 고투자율을 나타낸다. 특히 니켈의 함유량이 78.5% 정도인 합금이 가장 높은 투자율을 나타내므로 상기한 자계차폐막(12)으로 사용하는 것이 바람직하다.As a material having a high coercivity and a high permeability for forming the magnetic shield film 12, it is preferable to use a permalloy, which is a nickel-iron alloy. Permalloy is a nickel-iron alloy having a nickel content of 70 to 90% and an iron content of 30 to 10%, and exhibits a high permeability. In particular, an alloy having a nickel content of about 78.5% exhibits the highest permeability, and therefore, it is preferable to use it as the magnetic shield film 12 described above.

상기한 자계차폐막(12)은 상기한 퓨리티보정용 자석조립체(20)의 고정몸체(22) 안쪽면에 부착된다.The magnetic shield film 12 is attached to the inner surface of the fixed body 22 of the purity correction magnet assembly 20.

상기와 같이 구성되는 본 고안 음극선관에 의하면, 퓨리티보정용 자석조립체(20)의 고정몸체(22)의 안쪽면에 부착된 자계차폐막(12)에 의하여 수직 및 수평자계가 완전하게 차폐되므로 지자기에 의한 수평화면중심위치(HRS) 및 수직화면중심위치(VRS)와 컨버전스의 변화를 확실하게 방지할 수 있다.According to the inventive cathode ray tube constructed as described above, since the vertical and horizontal magnetic fields are completely shielded by the magnetic shielding film 12 attached to the inner surface of the fixed body 22 of the purity correction magnet assembly 20, It is possible to reliably prevent changes in the horizontal screen center position (HRS) and the vertical screen center position (VRS) and convergence.

Description

음극선관Cathode ray tube

본 고안은 퓨리티보정용 자석조립체의 안쪽에 보자력과 투자율이 높은 재료로 형성한 자계차폐막을 삽입하여 자계차폐율을 향상시킨 음극선관에 관한 것이다.The present invention relates to a cathode ray tube which improves the magnetic shielding rate by inserting a magnetic shielding film formed of a material having high coercivity and high permeability inside a purity assembly magnet assembly.

일반적으로 음극선관에는 지자기의 영향으로부터 전자빔을 보호하기 위하여 마스크프레임에 인너실드를 결합하고 있다. 상기한 인너실드는 전자빔의 편향영역 주변을 감싸도록 설치되고, 음극선관을 제조할 때의 기준 지자기에 맞추어 모든 성능이 조정된 음극선관이 지자기 강도가 다른 지역으로 옮겨졌을 때 설정된 지자기 강도와 다른 지자기에 의해 음극선관의 화질이 저하되는 것을 방지한다.In general, the cathode ray tube incorporates an inner shield to the mask frame to protect the electron beam from the influence of geomagnetism. The inner shield is installed to surround the deflection region of the electron beam, and the geomagnetic strength which is different from the geomagnetic intensity set when the cathode ray tube whose performance has been adjusted to the reference geomagnetism when the cathode ray tube is manufactured is moved to an area having a different geomagnetic intensity. This prevents the image quality of the cathode ray tube from being lowered.

상기와 같이 인너실드를 장착하여 지자기의 차폐를 행하는 종래의 음극선관에 있어서는 인너실드만으로 지자기의 차폐를 행하는 데 한계가 있기 때문에 음극선관의 방향을 전환하거나 설치장소를 변경하면, 수평 및 수직자계에 따른 수평화면중심위치(HRS) 및 수직화면중심위치(VRS)와 컨버전스(convergence)의 변화가 크게 발생하므로 화질이 나빠진다.In the conventional cathode ray tube which shields the geomagnetism by mounting the inner shield as described above, the shield of the geomagnetism is limited by the inner shield alone. The change in the horizontal screen center position (HRS), the vertical screen center position (VRS), and the convergence (convergence) occurs accordingly, the image quality is poor.

본 고안의 목적은 상기한 문제점을 해결하기 위한 것으로서, 퓨리티보정용 자석조립체와 펀넬 사이에 보자력 및 투자율이 높은 재료로 형성된 자계차폐막을 삽입한 음극선관을 제공하는 것이다.It is an object of the present invention to provide a cathode ray tube having a magnetic shielding film formed of a material having high coercivity and permeability between a purity correction magnet assembly and a funnel.

본 고안 음극선관은 퓨리티보정용 자석조립체(CPM)의 안쪽에 보자력(coercive force)과 투자율(permeability)이 높은 재료로 형성한 자계차폐막을 부착하고, 펀넬의 넥크부에 퓨리티보정용 자석조립체를 장착한 것이다.The cathode ray tube of the present invention attaches a magnetic shielding film formed of a material having high coercive force and permeability to the inside of the purity correction magnet assembly (CPM), and mounts the purity correction magnet assembly to the neck of the funnel. .

상기에서 자계차폐막을 형성하는 보자력과 투자율이 높은 재료로는 니켈-철계 합금인 퍼멀로이(permalloy)를 사용하는 것이 바람직하다. 상기한 퍼멀로이는 니켈의 함유량이 70∼90%이고 철의 함유량이 30∼10%인 금속이다.As a material having a high coercivity and a high permeability for forming the magnetic shield film, it is preferable to use a permalloy, which is a nickel-iron alloy. The permalloy is a metal having a nickel content of 70 to 90% and an iron content of 30 to 10%.

상기와 같이 구성되는 본 고안 음극선관에 의하면, 퓨리티보정용 자석조립체와 펀넬 사이에 부착한 자계차폐막에 의하여 수직 및 수평자계가 완전하게 차폐되므로 지자기에 의한 수평화면중심위치(HRS) 및 수직화면중심위치(VRS)와 컨버전스(convergence)의 변화를 확실하게 방지할 수 있다.According to the present invention cathode ray tube constructed as described above, since the vertical and horizontal magnetic field is completely shielded by the magnetic shielding film attached between the purity correction magnet assembly and the funnel, the horizontal screen center position (HRS) and the vertical screen center position by geomagnetism It is possible to reliably prevent changes in VRS and convergence.

도 1은 본 고안에 따른 음극선관의 일실시예를 나타내는 부분단면사시도.1 is a partial cross-sectional perspective view showing an embodiment of a cathode ray tube according to the present invention.

도 2는 도 1의 A부 상세도.FIG. 2 is a detailed view of portion A of FIG. 1; FIG.

도 3은 퓨리티보정용 자석조립체의 분해사시도.3 is an exploded perspective view of the purity assembly of the magnet assembly.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

2:펀넬 12:자계차폐막 20:퓨리티보정용 자석조립체 22:고정몸체2: funnel 12: magnetic shield 20: magnetic assembly for purity correction 22: fixed body

다음으로 본 고안에 따른 음극선관의 가장 바람직한 실시예를 도면을 참조하여 상세하게 설명한다.Next, the most preferred embodiment of the cathode ray tube according to the present invention will be described in detail with reference to the drawings.

먼저 도 1∼도 2에 나타낸 바와 같이, 본 고안에 따른 음극선관의 일실시예는 퓨리티보정용 자석조립체(CPM)(20)의 안쪽에 보자력(coercive force)과 투자율(permeability)이 높은 재료로 형성한 자계차폐막(12)을 부착하고, 펀넬(2)의 넥크부에 퓨리티보정용 자석조립체(20)를 장착한 것이다.First, as shown in FIGS. 1 and 2, one embodiment of the cathode ray tube according to the present invention is formed of a material having high coercive force and permeability inside the purity correction magnet assembly (CPM) 20. One magnetic shield film 12 is attached and a purity correction magnet assembly 20 is attached to the neck portion of the funnel 2.

상기에서 자계차폐막(12)을 형성하는 보자력과 투자율이 높은 재료로는 니켈-철계 합금인 퍼멀로이(permalloy)를 사용하는 것이 바람직하다.As a material having a high coercivity and a high permeability for forming the magnetic shield film 12, it is preferable to use a permalloy, which is a nickel-iron alloy.

상기한 퍼멀로이는 니켈(Ni)의 함유량이 70∼90%이고 철(Fe)의 함유량이 30∼10%인 니켈-철계 합금으로 고투자율을 나타낸다. 특히 니켈의 함유량이 78.5% 정도인 합금이 가장 높은 투자율을 나타내므로 상기한 자계차폐막(12)으로 사용하는 것이 바람직하다.The permalloy is a nickel-iron alloy having a content of nickel (Ni) of 70 to 90% and a content of iron (Fe) of 30 to 10%, and exhibits a high permeability. In particular, an alloy having a nickel content of about 78.5% exhibits the highest permeability, and therefore, it is preferable to use it as the magnetic shield film 12 described above.

또 기계적 성질의 개선을 위하여 퍼멀로이에 몰리브덴(Mo), 크롬(Cr), 망간(Mn) 등을 첨가한 니켈-철계 합금인 초퍼멀로이, 슈퍼멀로이 등도 상기한 자계차폐막(12)으로 사용가능하다.In addition, for the improvement of the mechanical properties, the super-ferro alloy, such as a super-ferro alloy, a nickel-iron alloy in which molybdenum (Mo), chromium (Cr), manganese (Mn), etc. are added to the permalloy may also be used as the magnetic shielding film 12 described above.

상기한 바와 같이 이루어지는 본 고안에 따른 음극선관은 패널(4)과 펀넬(2)과 전자총(10)과 새도우마스크(6)와 편향요크(8) 등을 포함하여 구성된다.The cathode ray tube according to the present invention made as described above comprises a panel 4, a funnel 2, an electron gun 10, a shadow mask 6, a deflection yoke 8 and the like.

상기한 퓨리티보정용 자석조립체(20)는 도 3에 나타낸 바와 같이, 2극자석(24)과 4극자석(26)과 6극자석(28)과 복수의 스페이스링(25)과 고정몸체(22)와 고정링(23)으로 구성된다.As shown in FIG. 3, the purity correction magnet assembly 20 includes a dipole magnet 24, a quadrupole magnet 26, a six pole magnet 28, a plurality of space rings 25, and a fixed body 22. ) And a fixed ring (23).

상기와 같이 구성되는 퓨리티보정용 자석조립체(20)는 고정몸체(22)에 2극자석(24)과 4극자석(26)과 6극자석(28) 및 복수의 스페이스링(25)과 고정링(23)을 고정몸체(22)에 삽입하고, 상기한 펀넬(2)이 넥크부에 고정몸체(22)를 삽입한 다음, 고정링(23)의 구멍에 볼트(29)를 체결하여 펀넬(2)의 넥크부에 장착한다.Purity correction magnet assembly 20 is configured as described above, the dipole magnet 24 and the quadrupole magnet 26 and the six-pole magnet 28 and the plurality of space ring 25 and the fixed ring on the fixed body 22 (23) is inserted into the fixed body (22), the funnel (2) is inserted into the fixed body 22 in the neck portion, and then the bolt 29 is fastened to the hole of the fixing ring 23 by the funnel ( It is attached to the neck part of 2).

상기한 자계차폐막(12)은 상기한 고정몸체(22)의 안쪽면에 부착된다.The magnetic shield film 12 is attached to the inner surface of the fixed body 22.

상기와 같이 구성되는 본 고안 음극선관에 의하면, 퓨리티보정용 자석조립체(20)의 고정몸체(22)의 안쪽면에 부착되어 펀넬(2)의 바깥면에 밀착된 자계차폐막(12)에 의하여 수직 및 수평자계가 완전하게 차폐되므로 지자기에 의한 수평화면중심위치(HRS) 및 수직화면중심위치(VRS)와 컨버전스(convergence)의 변화를 확실하게 방지할 수 있다.According to the present invention cathode tube configured as described above, the magnetic shielding film 12 attached to the inner surface of the fixed body 22 of the magnetic assembly for purity correction 20 is in contact with the outer surface of the funnel (2) perpendicular and Since the horizontal magnetic field is completely shielded, changes in the horizontal screen center position (HRS), the vertical screen center position (VRS), and the convergence caused by the geomagnetism can be reliably prevented.

상기에서는 본 고안의 바람직한 실시예에 대하여 설명하였지만, 본 고안은 이에 한정되는 것이 아니고 실용신안등록 청구의 범위와 고안의 상세한 설명 및 첨부한 도면의 범위 안에서 여러 가지로 변형하여 실시하는 것이 가능하고 이 또한 본 고안의 범위에 속하는 것은 당연하다.In the above description of the preferred embodiment of the present invention, the present invention is not limited to this, but can be implemented in various ways within the scope of the utility model registration claims and the detailed description of the invention and the scope of the accompanying drawings. It is also natural to fall within the scope of the present invention.

상기와 같이 이루어지는 본 고안 음극선관에 의하면, 자계차폐막과 인너실드에 의하여 수직자계 및 수평자계의 차폐가 완전하게 이루어지므로 수평화면중심위치(HRS)와 수직화면중심위치(VRS) 및 컨버전스의 변화가 없고, 지자기의 수직자계와 수평자계에 의한 전자빔의 랜딩 벗어남이 발생하지 않는다.According to the present invention cathode ray tube made as described above, since the vertical magnetic field and the horizontal magnetic field are completely shielded by the magnetic shielding film and the inner shield, the change of the horizontal screen center position (HRS), the vertical screen center position (VRS), and the convergence can be changed. And no landing deviation of the electron beam due to the vertical and horizontal magnetic fields of the geomagnetism occurs.

Claims (4)

퓨리티보정용 자석조립체(CPM)(20)의 안쪽에 보자력(coercive force)과 투자율(permeability)이 높은 재료인 니켈- 철계 합금으로 형성되는 자계차폐막(12)을 부착하고, 펀넬(2)의 넥크부에 퓨리티보정용 자석조립체(20)를 장착한 음극선관.A magnetic shielding film 12 formed of a nickel-iron alloy, which is a material having high coercive force and permeability, is attached to the inner side of the purity correction magnet assembly (CPM) 20, and the neck portion of the funnel 2 is attached. Cathode ray tube equipped with a magnetic assembly (20) for purity correction. 제1항에 있어서, 상기한 자계차폐막(12)은 상기한 퓨리티보정용 조립체(20)의 고정몸체(22) 안쪽면에 부착되는 음극선관.The cathode ray tube according to claim 1, wherein the magnetic shielding film (12) is attached to an inner surface of the fixing body (22) of the purity correction assembly (20). 제1항에 있어서, 상기한 자계차폐막(12)을 형성하는 니켈- 철계 합금은 니켈(Ni)의 함유량이 70∼90%이고 철(Fe)의 함유량이 30∼10%인 음극선관.The cathode-ray tube according to claim 1, wherein the nickel-iron-based alloy forming the magnetic shield film (12) has a content of nickel (Ni) of 70 to 90% and a content of iron (Fe) of 30 to 10%. 제1항에 있어서, 상기한 자계차폐막(12)을 형성하는 니켈- 철계 합금은 니켈의 함유량이 78.5%인 음극선관.The cathode ray tube according to claim 1, wherein the nickel-iron-based alloy forming the magnetic shielding film (12) has a content of nickel of 78.5%.
KR2019960031371U 1996-09-25 1996-09-25 Cathode ray tube KR200280114Y1 (en)

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