KR200235771Y1 - Shadow Mask for Cathode Ray Tube - Google Patents

Shadow Mask for Cathode Ray Tube Download PDF

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Publication number
KR200235771Y1
KR200235771Y1 KR2019960028592U KR19960028592U KR200235771Y1 KR 200235771 Y1 KR200235771 Y1 KR 200235771Y1 KR 2019960028592 U KR2019960028592 U KR 2019960028592U KR 19960028592 U KR19960028592 U KR 19960028592U KR 200235771 Y1 KR200235771 Y1 KR 200235771Y1
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KR
South Korea
Prior art keywords
inclined surface
center
hole
shadow mask
cathode ray
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KR2019960028592U
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Korean (ko)
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KR19980015368U (en
Inventor
김주철
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김순택
삼성에스디아이 주식회사
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Priority to KR2019960028592U priority Critical patent/KR200235771Y1/en
Priority to CN97104656A priority patent/CN1105393C/en
Publication of KR19980015368U publication Critical patent/KR19980015368U/en
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Publication of KR200235771Y1 publication Critical patent/KR200235771Y1/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
    • H01J29/02Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06Screens for shielding; Masks interposed in the electron stream
    • H01J29/07Shadow masks for colour television tubes

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  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

중앙에서는 빔통과구멍(12)의 옆면이 양쪽으로 같은 경사(A1=B1)로 경사면(14)이 형성되고, 중앙에서 모서리로 갈수록 빔통과구멍(12)의 옆면 양쪽이 점점 서로 크게 차이가 나는 경사(A2<B2)로 경사면이 형성되며, 중앙 및 모서리 각각의 빔통과구멍(12)에 대한 경사면(14)의 최대단면적에 해당하는 거리(C1>C2)가 중앙에서 모서리로 갈수록 점점 작아지는 음극선관용 새도우마스크를 제공한다.In the center, the inclined surface 14 is formed with the same inclination (A1 = B1) on both sides of the beam passing hole 12, and both sides of the beam passing hole 12 are gradually different from each other toward the edge from the center. An inclined surface is formed with an inclination A2 < B2, and the distance C1 > C2 corresponding to the maximum cross-sectional area of the inclined surface 14 with respect to the beam through hole 12 in each of the center and corners becomes smaller from the center to the corner. A shadow mask for cathode ray tube is provided.

즉 중앙에서 모서리로 갈수록 각각의 빔통과구멍(12)에 대한 경사면(14)의 최대 단면적에 해당하는 거리(C1>C2)가 작아짐에 따라 각각의 빔통과구멍(12)에 대한 중앙쪽 경사면(14)의 길이(A1>A2)가 작아지도록 형성되고, 각각의 빔통과구멍(12)에 대한 모서리쪽 경사면(14)의 길이(B1=B2)는 같게 형성된다.That is, as the distance C1> C2 corresponding to the maximum cross-sectional area of the inclined plane 14 with respect to each beam through hole 12 decreases from the center to the edge, the inclined plane with respect to each beam through hole 12 ( The length (A1> A2) of 14) is formed to be small, and the length (B1 = B2) of the edge inclined surface 14 with respect to each beam through hole 12 is formed equal.

Description

음극선관용 새도우마스크Shadow Mask for Cathode Ray Tube

제1도는 본 고안 음극선관용 새도우마스크의 일실시예를 적용한 음극선관을 나타내는 부분단면도.1 is a partial cross-sectional view showing a cathode ray tube to which an embodiment of the present invention shadow mask for cathode ray tube is applied.

제2도는 종래 음극선관용 새도우마스크를 적용한 음극선관을 나타내는 부분단면도.2 is a partial cross-sectional view showing a cathode ray tube to which a shadow mask for a conventional cathode ray tube is applied.

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

10 : 새도우마스크 12 : 빔통과구멍10: shadow mask 12: beam through hole

14 : 경사부14: inclined portion

[산업상의 이용분야][Industrial use]

본 고안은 음극선관용 새도우마스크에 관한 것으로서, 더욱 상세하게는 각각의 빔통과구멍에 주위에 형성된 경사부의 최대 단면적이 중앙에서 모서리로 갈수록 작아지게 형성한 음극선관용 새도우마스크에 관한 것이다.The present invention relates to a shadow mask for cathode ray tubes, and more particularly, to a shadow mask for cathode ray tubes, the maximum cross-sectional area of the inclined portion formed around each beam through hole is formed to become smaller from the center to the corner.

[종래의 기술][Prior art]

음극선관에 사용되는 새도우마스크에는 전자빔을 선택적으로 통과시켜 다수의 색선별 기능을 하는 구멍이나 슬릿 또는 스트라이프가 형성된다.In the shadow mask used for the cathode ray tube, holes, slits or stripes are formed to selectively pass an electron beam to perform a plurality of color discrimination functions.

종래 음극선관용 새도우마스크에 있어서 색선별 기능을 하는 구멍 또는 슬릿은 제2도에 나타낸 바와 같이, 새도우마스크(20)의 중앙에서는 빔통과구멍(22)의 옆면이 양쪽으로 같은 경사(A3=B3)로 경사면(24)이 형성되고, 중앙에서 모서리로 갈수록 빔통과구멍(22)의 옆면 양쪽이 점점 서로 크게 차이나는 경사(A4<B4)로 경사면(24)이 형성된다. 즉 새도우마스크(20) 중앙 및 모서리 각각의 빔통과구멍(22)에 대한 경사면(24)의 최대 단면적에 해당하는 거리가 동일한 상태(C3=C4)에서, 전자빔의 진행방향쪽 즉 모서리쪽 경사면(24)의 길이(B3), (B4)와 전자빔의 진행방향 반대쪽 즉 중앙쪽 경사면(24)의 길이(A3), (A4)의 차이가 점점 크게 되도록 구멍 또는 슬릿이 형성된다.In the shadow mask for a conventional cathode ray tube, a hole or a slit having a color discrimination function is inclined (A3 = B3) at both sides of the beam passing hole 22 at the center of the shadow mask 20 as shown in FIG. The furnace inclined surface 24 is formed, and the inclined surface 24 is formed with the inclination A4 <B4 by which both side surfaces of the beam through hole 22 gradually become larger mutually from the center to the edge. That is, in a state where the distance corresponding to the maximum cross-sectional area of the inclined surface 24 with respect to the beam passage hole 22 in each of the center and the corner of the shadow mask 20 is the same (C3 = C4), the inclined surface of the electron beam, that is, the inclined surface ( A hole or a slit is formed so that the difference between the lengths B3 and B4 of 24 and the lengths A3 and A4 of the opposite side of the electron beam in the advancing direction, that is, the central inclined surface 24 becomes larger.

[고안이 해결하고자 하는 과제][Problem to Solve]

상기한 바와 같이 구성되는 종래 음극선관용 새도우마스크에 있어서는 경사면(24)의 최대 단면적에 해당하는 거리(C3=C4)가 동일한 상태에서 전자빔의 진행방향쪽 즉 모서리쪽 경사면의 길이(B3<B4)보다 전자빔의 진행방향 반대쪽 즉 중앙쪽 경사면의 길이(A3>A4)를 점점 작게 형성하므로 모서리부분으로 갈수록 각 빔통과구멍(20)의 경사면에 있어서의 두께 특히 모서리쪽의 경사면(B4)의 두께가 얇아지므로 도밍특성이 나빠지게 된다.In the shadow mask for a conventional cathode ray tube configured as described above, the distance (C3 = C4) corresponding to the maximum cross-sectional area of the inclined surface 24 is greater than the length (B3 <B4) of the inclined surface in the advancing direction of the electron beam. Since the length (A3> A4) of the inclined surface opposite the traveling direction of the electron beam, that is, the center side, is made smaller, the thickness of the inclined surface of each beam through hole 20, in particular, the thickness of the inclined surface B4 on the edge becomes thinner toward the corner portion. As a result, the domming characteristic becomes worse.

또 경사면(24)의 최대 단면적에 해당하는 거리가 동일한 상태에서는 중앙쪽 경사면의 길이(A3>A4)를 작게 하고 모서리쪽 경사면의 길이(B3<B4)를 크게 하는 것에 한계가 있으므로 전자빔의 진행방향 반대쪽인 중앙쪽 경사면의 길이(A4)가 불필요하지만 일정 길이 이상으로 형성된다. 따라서 불필요한 가공시간이 소요되고 강도면에서도 불리하다는 문제가 있다.In the state where the distance corresponding to the maximum cross-sectional area of the inclined surface 24 is the same, there is a limit to reducing the length (A3> A4) of the central inclined surface and increasing the length (B3 <B4) of the inclined surface of the corner, so that the direction of the electron beam travels. The length A4 of the opposite center inclined surface is unnecessary but is formed over a certain length. Therefore, there is a problem in that unnecessary processing time is required and in terms of strength.

[과제를 해결하기 위한 수단][Means for solving the problem]

상기와 같은 문제를 해결하기 위하여 본 고안이 강구한 수단은 중앙에서는 빔통과구멍의 옆면이 양쪽으로 같은 경사로 경사면이 형성되고, 중앙에서 모서리로 갈수록 빔통과구멍의 옆면 양쪽이 점점 서로 크게 차이가 나는 경사로 경사면이 형성되며, 중앙 및 모서리 각각의 빔통과구멍에 대한 경사면의 최대 단면적에 해당하는 거리가 중앙에서 모서리로 갈수록 점점 작아지는 음극선관용 새도우마스크를 제공하는 것이다.Means devised by the present invention to solve the above problems are formed in the inclined surface with the same slope on both sides of the beam through hole in the center, and both sides of the beam through hole gradually become larger from the center toward the corner. It is to provide a shadow mask for the cathode ray tube in which the inclined slope is formed, and the distance corresponding to the maximum cross-sectional area of the inclined surface with respect to the beam through hole of each of the center and the edge becomes smaller from the center to the edge.

상기와 같이 구성되는 본 고안 음극선관용 새도우마스크에 의하면, 빔통과구멍에 대한 경사면의 최대단면적에 해당하는 거리가 모서리쪽으로 갈수록 점점 작아지게 형성하는 것에 의하여 모서리쪽의 도밍현상이 개선되고, 새도우마스크 전체적으로 두께가 두꺼워지므로 충격 및 외부변화에 의해 손상될 가능성이 작아진다.According to the shadow mask for the present invention cathode ray tube configured as described above, by forming the distance corresponding to the maximum cross-sectional area of the inclined surface with respect to the beam through hole gradually smaller toward the corner, the dominant phenomenon of the corner is improved, the shadow mask as a whole The thicker the thickness, the less likely it is to be damaged by impacts and external changes.

[실시예]EXAMPLE

다음으로 본 고안 음극선관용 새도우마스크의 가장 바람직한 실시예를 도면을 참조하여 상세하게 설명한다.Next, the most preferred embodiment of the present invention shadow mask for cathode ray tube will be described in detail with reference to the drawings.

먼저 제1도에 나타낸 바와 같이, 본 고안 음극선관용 새도우마스크는 중앙에서는 빔통과구멍(12)의 옆면이 양쪽으로 같은 경사(A1=B1)로 경사면(14)이 형성되고, 중앙에서 모서리로 갈수록 빔통과구멍(12)의 옆면 양쪽이 점점 서로 크게 차이가 나는 경사(A2<B2)로 경사면이 형성되며, 중앙 및 모서리 각각의 빔통과구멍(12)에 대한 경사면(14)의 최대단면적에 해당하는 거리가 중앙에서 모서리로 갈수록 점점 작아진다(C1>C2). 즉 중앙에서 모서리로 갈수록 각각의 빔통과구멍(12)에 대한 경사면(14)의 최대 단면적에 해당하는 거리(C1>C2)가 작아짐에 따라 각각의 빔통과구멍(12)에 대한 전자빔의 진행방향 반대쪽 즉 중앙쪽 경사면(14)의 길이(A1>A2)가 작아지도록 형성되고, 각각의 빔통과구멍(12)에 대한 전자빔의 진행방향쪽 즉 모서리쪽 경사면(14)의 길이(B1=B2)는 같게 형성된다.First, as shown in FIG. 1, the shadow mask for a cathode ray tube of the present invention has an inclined surface 14 formed with the same slope (A1 = B1) at both sides of the beam passing hole 12 at the center thereof, and toward the edge from the center. The inclined surface is formed by the inclination A2 <B2 with both sides of the beam passing hole 12 which are gradually different from each other, and corresponds to the maximum cross-sectional area of the inclined plane 14 with respect to the beam passing hole 12 in the center and the corner, respectively. As the distance from the center to the corner becomes smaller (C1> C2). That is, as the distance C1> C2 corresponding to the maximum cross-sectional area of the inclined surface 14 with respect to each beam through hole 12 decreases from the center to the edge, the direction of the electron beam with respect to each beam through hole 12 becomes smaller. The length A1 &gt; A2 of the opposite side or center inclined surface 14 is formed to be small, and the length (B1 = B2) of the traveling direction of the electron beam with respect to each beam through hole 12, that is, the corner inclined surface 14 Is formed equally.

상기와 같이 구성되는 본 고안 음극선관용 새도우마스크가 적용된 음극선관은 제1도에 나타낸 바와 같이, 펀넬(2)과 전자총(4)과 패널(6) 및 새도우마스크(10)와 마스크프레임(8)으로 구성되고, 상기한 전자총(4)에서 발사된 전자빔이 새도우마스크(10)에 형성된 빔통과구멍(12)을 통과하여 패널(6)에 형성된 형광막의 형광체를 발광시키는 것에 의하여 화상을 재현한다.As shown in FIG. 1, the cathode ray tube to which the shadow mask for the cathode ray tube of the present invention configured as described above is applied, the funnel 2, the electron gun 4, the panel 6, the shadow mask 10, and the mask frame 8 The electron beam emitted from the electron gun 4 passes through the beam passage hole 12 formed in the shadow mask 10 to emit the phosphor of the fluorescent film formed in the panel 6 to reproduce the image.

상기에서 전자총(4)에서 발사된 전자빔은 도면에 나타내지 않은 편향요크에 의하여 중앙에서 모서리쪽으로 휘어져서 새도우마스크(10)에 형성된 빔통과구멍(12)을 통과하게 된다.The electron beam emitted from the electron gun 4 is bent from the center to the corner by a deflection yoke not shown in the drawing to pass through the beam passing hole 12 formed in the shadow mask 10.

[고안의 효과][Effect of design]

상기와 같이 구성되는 본 고안 음극선관용 새도우마스크는 각각의 빔통과구멍에 있어서 전자빔 진행방향의 반대방향에 위치하여 불필요한 경사면의 길이를 모서리부분으로 갈수록 최대한 작게 형성하고 각각의 빔통과구멍에 대한 경사면의 최대 단면적을 모서리부분으로 갈수록 작게 형성하는 것에 의하여 종래 음극선관용 새도우마스크에 비하여 두꺼운 두께를 유지하는 부분이 많으므로 전체적인 두께를 두껍게 형성할 수 있다. 따라서 모서리쪽의 도밍현상이 개선되고, 충격 및 외부변화에 강하다.The shadow mask for the present invention cathode ray tube constituted as described above is located in the opposite direction of the electron beam traveling direction in each beam through hole, so that the length of the unnecessary inclined surface is made as small as possible toward the corner portion, and the slope of the inclined surface for each beam through hole is By forming the maximum cross-sectional area smaller toward the corner portion, since there are many parts to maintain a thick thickness compared to the shadow mask for conventional cathode ray tube, the overall thickness can be formed thick. Therefore, the edge doming phenomenon is improved, and it is strong against impact and external changes.

Claims (1)

중앙에서는 빔통과구멍(12)의 옆면이 양쪽으로 같은 경사(A1=B1)로 경사면(14)이 형성되고, 중앙에서 모서리로 갈수록 빔통과구멍(12)의 옆면 양쪽이 점점 서로 크게 차이가 나는 경사(A2<B2)로 경사면이 형성되며, 중앙 및 모서리 각각의 빔통과구멍(12)에 대한 경사면(14)의 최대단면적에 해당하는 거리(C1>C2)가 중앙에서 모서리로 갈수록 점점 작아지는 음극선관용 새도우마스크.In the center, the inclined surface 14 is formed with the same inclination (A1 = B1) on both sides of the beam passing hole 12, and both sides of the beam passing hole 12 are gradually different from each other toward the edge from the center. An inclined surface is formed with an inclination A2 &lt; B2, and the distance C1 &gt; C2 corresponding to the maximum cross-sectional area of the inclined surface 14 with respect to the beam through hole 12 in each of the center and corners becomes smaller from the center to the corner. Shadow mask for cathode ray tube.
KR2019960028592U 1996-09-09 1996-09-09 Shadow Mask for Cathode Ray Tube KR200235771Y1 (en)

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KR2019960028592U KR200235771Y1 (en) 1996-09-09 1996-09-09 Shadow Mask for Cathode Ray Tube
CN97104656A CN1105393C (en) 1996-09-09 1997-07-30 Shadow mask for cathode-ray tubes

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KR2019960028592U KR200235771Y1 (en) 1996-09-09 1996-09-09 Shadow Mask for Cathode Ray Tube

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JP3353712B2 (en) * 1998-07-16 2002-12-03 関西日本電気株式会社 Color cathode ray tube

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JPS63286588A (en) * 1987-05-19 1988-11-24 Toshiba Corp Production of shadow mask
JPH04126341A (en) * 1990-06-05 1992-04-27 Sony Corp Color cathode-ray tube
CN1047258C (en) * 1990-11-22 1999-12-08 东芝株式会社 Plate for shadow-mask developing and method for manufacture of plate

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CN1176480A (en) 1998-03-18
CN1105393C (en) 2003-04-09

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