KR960032569A - Cathode ray tube, internal magnetic shield and manufacturing method thereof - Google Patents

Cathode ray tube, internal magnetic shield and manufacturing method thereof Download PDF

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Publication number
KR960032569A
KR960032569A KR1019960003567A KR19960003567A KR960032569A KR 960032569 A KR960032569 A KR 960032569A KR 1019960003567 A KR1019960003567 A KR 1019960003567A KR 19960003567 A KR19960003567 A KR 19960003567A KR 960032569 A KR960032569 A KR 960032569A
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KR
South Korea
Prior art keywords
shielding means
internal
internal magnetic
piece
respect
Prior art date
Application number
KR1019960003567A
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Korean (ko)
Inventor
쓰도무 스에히로
Original Assignee
이데이 노부유키
소니 가부시기가이샤
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Publication of KR960032569A publication Critical patent/KR960032569A/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/003—Preventing or cancelling fields entering the enclosure

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

본 발명의 내부자기실드(IMS)는 내부자기실드부와 내부전자실드부가 정면방향에 있어서 중합되지 않도록 1매의 판을 커트·벤드하여 형성되어 있다. 장변측판형 차양에는, 복수의 IMS를 적재했을 때에 인접하는 IMS가 밀착하는 것을 방지하기 위한 철부가 형성되어 있다.The inner magnetic shield (IMS) of the present invention is formed by cutting and bending one plate so that the inner magnetic shield portion and the inner electromagnetic shield portion are not superposed in the frontal direction. In the long-side plate-shaped sunshade, a convex portion is formed to prevent the adjacent IMS from adhering to each other when a plurality of IMSs are loaded.

Description

음극선관, 내부자기실드 및 그 제조방법Cathode ray tube, internal magnetic shield and manufacturing method thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제7도는 본 발명의 제1실시예에 관한 IMS의 외관사시도.FIG. 7 is an external perspective view of an IMS according to a first embodiment of the present invention; FIG.

제8도는 제7도에 나타낸 IMS가 사용되는 CRT의 분해사시도.FIG. 8 is an exploded perspective view of a CRT in which the IMS shown in FIG. 7 is used; FIG.

제9도는 제7도에 나타낸 IMS의 제조방법을 설명하기 위한 전개도.FIG. 9 is an exploded view for explaining a manufacturing method of the IMS shown in FIG. 7; FIG.

제10A도, 제10B도 및 제10C도는 제7도에 나타낸 X-X에 있어서의 IMS의 단면도.10A, 10B and 10C are cross-sectional views of the IMS at X-X shown in FIG. 7;

제11도는 제7도에 나타낸 복수의 IMS를 적재했을 때의 상태를 설명하기 위한 단면도.FIG. 11 is a sectional view for explaining a state when a plurality of IMSs shown in FIG. 7 are loaded; FIG.

Claims (7)

페이스플레이트(faceplate)패널과, 상기 패널의 측벽에 연결된 퍼넬(funnel)과, 상기 패널상의 유효화면의 수평축에 대하여 대칭으로 위치하는 1쌍의 긴 편부(片部)와 상기 패널상의 유효화면의 수직축과 평행으로 위치하는 1쌍의 짧은 편부를 가지고, 상기 퍼넬에 위치하는 내부자기실드로 이루어지고, 상기 1쌍의 긴 편부와 상기 1쌍의 짧은 편부는 금속시트로 접어 하나의 피스로 형성되어 이루어지는 음극선관.A pair of long pieces positioned symmetrically with respect to a horizontal axis of the effective screen on the panel, and a pair of elongated tabs arranged on the vertical axis of the effective screen on the panel, Wherein the pair of long side portions and the pair of short side portions are formed of one piece by being folded into a metal sheet. Cathode ray tube. 페이스플레이트패널과, 상기 패널의 측벽에 연결된 퍼넬과, 길이방향과 평행의 중심축에 대하여 대략 대칭으로 위치하는 제1의 편부 및 제2의 편부로 구성되고, 음극선관내부의 자계의 영향을 차단하기 위한 내부자기실드수단과, 상기 제1의 편부 및 제2의 편부와 직교하여 폭방향과 평행의 중심축에 대하여 대략 대칭으로 위치하고, 유효화면의 외측의 불필요한 전자선을 차단하기 위한 내부전자실드수단을 가지는 내부자기실드로 이루어지고, 상기 내부자기실드수단과 상기 내부전자실드수단은 1매의 판을 부분적으로 커트·벤드하여 형성되어 이루어지는 음극선관.A face plate panel, a funnel connected to the side wall of the panel, and a first piece and a second piece located substantially symmetrically with respect to a central axis parallel to the longitudinal direction, wherein the influence of the magnetic field in the cathode- And internal electronic shielding means for shielding unnecessary electron beams outside the effective screen, which are located substantially symmetrically with respect to a central axis parallel to the width direction and orthogonal to the first and second piece portions Wherein the inner magnetic shielding means and the inner electromagnetic shielding means are formed by partially cutting and bending one plate. 제2항에 있어서, 상기 내부자기실드수단은 상기 제1의 편부 및 상기 제2의 편부와 계합하여서, 폭방향과 평행의 중심축에 대하여 대략 대칭으로 위치하는 제3의 편부 및 제4의 편부를 또한 가지는 내부자기실드.The magnetic bearing according to claim 2, wherein the inner magnetic shielding means includes a third piece portion and a third piece portion which are engaged with the first piece portion and the second piece portion and are disposed substantially symmetrically with respect to a central axis parallel to the width direction, Further comprising: an inner magnetic shield. 제2항에 있어서, 복수의 내부자기실드를 적재했을 때에, 인접하는 내부자기실드 상호간의 거리를 일정하게 유지하기 위한 계지부를 또한 가지고, 상기 내부전자실드수단은 상기 내부자기실드수단과 정면방향으로 중합하지 않도록 위치하는 내부자기실드.The internal magnetic shielding apparatus according to claim 2, further comprising a locking section for maintaining a constant distance between adjacent internal magnetic shields when a plurality of internal magnetic shields are stacked, To prevent polymerization. 제2항에 있어서, 상기 내부전자실드수단의 제1의 편부 및 제2의 편부는 그 선단이 전자총측에 향하도록 절곡하여 형성되어 있는 내부자기실드.3. The internal magnetic shield according to claim 2, wherein the first piece portion and the second piece portion of the internal electromagnetic shielding means are formed by bending such that their tips are directed to the electron gun side. 제2항에 있어서, 상기 내부전자실드수단은 그 선단을 2단 절곡하여 형성되어 있는 내부자기실드.3. The internal magnetic shield according to claim 2, wherein said inner electromagnetic shielding means is formed by bending its tip in two stages. 길이방향과 평행의 중심축에 대하여 대략 대칭으로 위치하는 제1의 편부 및 제2의 편부로 구성되고, 음극선관내의 자계의 영향을 차단하기 위한 내부자기실드수단과, 상기 제1의 편부 및 제2의 편부와 직교하여 폭방향과 평행의 중심축에 대하여 대략 대칭으로 위치하고, 유효화면의 외측의 불필요한 전자선을 차단하기 위한 내부전자실드수단을 가지는 내부자기실드의 제조방법에 있어서, 1매의 판을 준비하고, 상기 판을 부분적으로 제1커트하여 상기 내부자기실드수단을 형성하고, 상기 판을 부분적으로 제2커트하여 상기 내부전자실드수단을 형성하고, 상기 판을 부분적으로 제1밴드하여 상기 내부자기실드수단을 형성하고, 상기 판을 부분적으로 제2벤드하여 상기 내부전자실드수단을 형성하고, 이로써, 상기 형성된 내부자기실드수단과 상기 형성된 내부전자실드수단을 가지는 상기 내부자기실드를 형성하는 내부자기실드의 제조방법.An internal magnetic shielding means composed of a first piece and a second piece disposed symmetrically with respect to a central axis parallel to the longitudinal direction and interrupting the influence of the magnetic field in the cathode ray tube; And the inner electron shielding means for shielding an unnecessary electron beam outside the effective screen, the inner shielding means being located substantially symmetrically with respect to a central axis parallel to the width direction and perpendicular to the one side of the effective screen, Forming an internal magnetic shielding means by partially cutting the plate first, forming the internal electromagnetic shielding means by partially cutting the plate secondarily to form the internal electromagnetic shielding means, Forming an internal magnetic shielding means and partially bending said plate a second time to form said internal electromagnetic shielding means, thereby forming said internal magnetic shielding means and said forming The method of the internal magnetic shield which forms the internal magnetic shield having an internal electromagnetic shielding means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960003567A 1995-02-15 1996-02-14 Cathode ray tube, internal magnetic shield and manufacturing method thereof KR960032569A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP02697195A JP3312518B2 (en) 1995-02-15 1995-02-15 Internal magnetic shield, method of manufacturing the same, and cathode ray tube
JP95-26971 1995-02-15

Publications (1)

Publication Number Publication Date
KR960032569A true KR960032569A (en) 1996-09-17

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JP (1) JP3312518B2 (en)
KR (1) KR960032569A (en)
CN (1) CN1135596C (en)
MY (1) MY120412A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001236898A (en) 1999-12-13 2001-08-31 Matsushita Electric Ind Co Ltd Internal magnetic shield and cathode-ray tube
JP4496616B2 (en) * 2000-07-26 2010-07-07 ソニー株式会社 Internal magnetic shield forming member, internal magnetic shield structure, method of manufacturing internal magnetic shield structure, and cathode ray tube

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JP3312518B2 (en) 2002-08-12
JPH08222142A (en) 1996-08-30
CN1137165A (en) 1996-12-04
MY120412A (en) 2005-10-31
CN1135596C (en) 2004-01-21

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