KR200247694Y1 - Cathode ray tube - Google Patents
Cathode ray tube Download PDFInfo
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- KR200247694Y1 KR200247694Y1 KR2019960031370U KR19960031370U KR200247694Y1 KR 200247694 Y1 KR200247694 Y1 KR 200247694Y1 KR 2019960031370 U KR2019960031370 U KR 2019960031370U KR 19960031370 U KR19960031370 U KR 19960031370U KR 200247694 Y1 KR200247694 Y1 KR 200247694Y1
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- cathode ray
- shielding film
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Abstract
방폭밴드(10)가 장착되는 패널(4)의 바깥면에 보자력(coercive force)과 투자율(permeability)이 높은 재료로 형성한 자계차폐막(12)을 부착하고, 상기한 자계차폐막(12) 위에 방폭밴드(10)를 장착한 음극선관을 제공한다.A magnetic shielding film 12 formed of a material having high coercive force and permeability is attached to the outer surface of the panel 4 on which the explosion-proof band 10 is mounted, and explosion-proof on the magnetic shielding film 12 described above. Provided is a cathode ray tube equipped with a band 10.
상기에서 자계차폐막(12)을 형성하는 보자력과 투자율이 높은 재료로는 니켈-철계 합금인 퍼멀로이(permalloy)를 사용하는 것이 바람직하다. 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.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 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.
상기와 같이 구성되는 본 고안 음극선관(2)에 의하면, 방폭밴드(10)의 안쪽 면과 패널(4) 및 펀넬(6)의 바깥면 사이에 삽입되어 부착된 자계차폐막(12)에 의하여 수직 및 수평자계가 완전하게 차폐되므로 지자기에 의한 수평화면중심위치(HRS) 및 수직화면증심위치(VRS)의 변화를 확실하게 방지할 수 있다.According to the present invention cathode ray tube 2 configured as described above, the magnetic shielding film 12 inserted and attached between the inner surface of the explosion-proof band 10 and the outer surface of the panel 4 and the funnel 6 is vertical. And since the horizontal magnetic field is completely shielded, it is possible to reliably prevent the change of the horizontal screen center position (HRS) and the vertical screen center position (VRS) by the geomagnetism.
Description
본 고안은 패널과 방폭밴드 사이에 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 permeability between the panel and the explosion-proof band.
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 음극선관 에 있어서는 인너실드만으로 지자기의 차폐를 행하는 데 한계가 있기 때문에 수직 자계에 따른 수평화면중심위치(HRS)의 변화가 크게 발생하여 랜딩이 크게 변하므로 화질이 나빠진다.In the conventional cathode ray tube that shields the geomagnetism by mounting the inner shield as described above, the shielding of the geomagnetism is limited by the inner shield alone, so the horizontal screen center position (HRS) is greatly changed according to the vertical magnetic field. This changes greatly, resulting in poor image quality.
본 고안의 목적은 상기한 문제점을 해결하기 위한 것으로서, 패널과 방폭밴드 사이에 보자력 및 투자율이 놓은 재료로 형성된 자계차폐막을 삽입한 음극선관을 제공하는 것이다.An object of the present invention is to solve the above problems, to provide a cathode ray tube inserted with a magnetic shielding film formed of a material having a coercive force and permeability between the panel and the explosion-proof band.
본 고안 음극선관은 방폭밴드가 장착되는 패널의 바깥면에 보자력(coercive force)과 투자율(permeability)이 높은 재료로 형성한 자계차폐막을 부착하고, 상기한 자계차폐막 위에 방폭밴드를 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 outer surface of the panel on which the explosion-proof band is mounted, and installs the explosion-proof band on the magnetic shielding film.
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 shielding 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, 방폭밴드와 패널 사이에 부착한 자계차폐막에 의하여 수직 및 수평자계가 완전하게 차폐되므로 지자기에 의 한 수평화면중심위치(HRS) 및 수직화면중심위치(VRS)의 변화를 확실하게 방지할 수 있다.According to the present invention cathode ray tube configured as described above, since the vertical and horizontal magnetic field is completely shielded by the magnetic shielding film attached between the explosion-proof band and the panel, the horizontal screen center position (HRS) and the vertical screen center position ( VRS) change can be prevented reliably.
제1도는 본 고안에 따른 음극선관의 일실시예를 나타내는 사시도.1 is a perspective view showing an embodiment of a cathode ray tube according to the present invention.
제2도는 제1도는 A-A 단면도.2 is a sectional view taken along line A-A.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 음극선관 4 : 패널2: cathode ray tube 4: panel
10 : 방폭밴드 12 : 자계차폐막10: explosion proof band 12: magnetic shield
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 제1도는∼제2도에 나타낸 바와 같이, 본 고안에 따른 음극선관의 일실시예는 방폭밴드(70)가 장착되는 패널(4)의 바깥면에 보자력(coercive force)과 투자율(permeability)이 높은 재료로 형성한 자계차폐막(12)을 부착하고, 상기한 자계차 폐막(12) 위에 방폭밴드(10)를 장착한 것이다.First, as shown in FIG. 1 to FIG. 2, one embodiment of the cathode ray tube according to the present invention is a coercive force and permeability on the outer surface of the panel 4 on which the explosion-proof band 70 is mounted. The magnetic shield film 12 formed of this high material is attached, and the explosion-proof band 10 is mounted on the magnetic shield film 12 mentioned above.
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(17)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 shielding film 17 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 음극선관(2)은 패널(4)과 펀넬(6)과 전자총(8) 등을 포함하여 구성된다.The cathode ray tube 2 according to the present invention made as described above includes a panel 4, a funnel 6, an electron gun 8, and the like.
상기와 같이 구성되는 본 고안 음극선관(2)에 의하면, 방폭밴드(10)의 안쪽 면과 패널(4) 및 펀넬(6)의 바깥면 사이에 삽입되어 부착된 자계차폐막(12)에 의하여 수직 및 수평자계가 완전하게 차폐되므로 지자기에 의한 수평화면중심위치(HRS) 및 수직화면중심위치(VRS)의 변화를 확실하게 방지할 수 있다.According to the present invention cathode ray tube 2 configured as described above, the magnetic shielding film 12 inserted and attached between the inner surface of the explosion-proof band 10 and the outer surface of the panel 4 and the funnel 6 is vertical. And since the horizontal magnetic field is completely shielded, it is possible to reliably prevent the change of the horizontal screen center position (HRS) and the vertical screen center position (VRS) by the geomagnetism.
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)의 변화가 없고, 따라서 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, there is no change in the horizontal screen center position (HRS) and the vertical screen center position (VRS), Therefore, the landing deviation of the electron beam by the vertical magnetic field and the horizontal magnetic field of the geomagnetism does not occur.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960031370U KR200247694Y1 (en) | 1996-09-25 | 1996-09-25 | Cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960031370U KR200247694Y1 (en) | 1996-09-25 | 1996-09-25 | Cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980017971U KR19980017971U (en) | 1998-07-06 |
| KR200247694Y1 true KR200247694Y1 (en) | 2001-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960031370U KR200247694Y1 (en) | 1996-09-25 | 1996-09-25 | Cathode ray tube |
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| Country | Link |
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| KR (1) | KR200247694Y1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100313988B1 (en) * | 1999-03-05 | 2002-01-09 | 이문호 | Shielding material of magnetic field and focusing plate structure of magnetic field and shielding structure of magnetic field using the same |
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1996
- 1996-09-25 KR KR2019960031370U patent/KR200247694Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR19980017971U (en) | 1998-07-06 |
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