KR100354925B1 - Apparatus for preventing floating phenomenon of cpm in color crt - Google Patents

Apparatus for preventing floating phenomenon of cpm in color crt Download PDF

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Publication number
KR100354925B1
KR100354925B1 KR1019960005026A KR19960005026A KR100354925B1 KR 100354925 B1 KR100354925 B1 KR 100354925B1 KR 1019960005026 A KR1019960005026 A KR 1019960005026A KR 19960005026 A KR19960005026 A KR 19960005026A KR 100354925 B1 KR100354925 B1 KR 100354925B1
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KR
South Korea
Prior art keywords
cpm
neck portion
magnet
steel band
rod
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KR1019960005026A
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Korean (ko)
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KR970063367A (en
Inventor
이지학
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엘지전자주식회사
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Priority to KR1019960005026A priority Critical patent/KR100354925B1/en
Publication of KR970063367A publication Critical patent/KR970063367A/en
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Publication of KR100354925B1 publication Critical patent/KR100354925B1/en

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    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • H01J29/826—Deflection arrangements
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/701—Systems for correcting deviation or convergence of a plurality of beams by means of magnetic fields at least
    • H01J29/702—Convergence correction arrangements therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/70—Electron beam control outside the vessel
    • H01J2229/703—Electron beam control outside the vessel by magnetic fields

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  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE: An apparatus for preventing a floating phenomenon of a CPM in a color CRT is provided to prevent the floating phenomenon of the CPM due to the overheat of a neck portion by forming a bar at an outer face of the neck portion. CONSTITUTION: A neck portion(104) is formed at a rear end of a funnel(114). A bar(101) is mounted on an outer face of the neck portion(104). The second steel band(103) is used for fixing the bar(101) by using a bolt(102). A CPM is formed with a bipolar magnet(109), a tripolar magnet(110), and a six-pole magnet(111). A ring(113) is located between the bipolar magnet(109) and a tripolar magnet(110) and between the tripolar magnet(110) and the six-pole magnet(111). A locker ring(112) is fixed at a backside of the six-pole magnet(111). The first steel band(106) is used for fixing the resultant structure to the neck portion(104). A holder(107) is used for supporting the resultant structure.

Description

칼라브라운관의 씨피엠 유동방지장치CPM flow prevention device of color brown tube

본 발명은 칼라브라운관의 씨피엠 유동 방지장치에 관한 것으로서 특히 브라운관의 후방에 장착된 씨피엠이 장시간 열충격에 의해 씨피엠의 홀더재질이 변형됨으로 컨버젼스의 퓨리티가 변하는 것을 방지하도록 한 것이다.The present invention relates to a CPM flow prevention device of a color CRT. In particular, the CPM mounted on the CRT is prevented from changing the purity of the CPM because the holder material of the CPM is deformed by thermal shock for a long time.

일반적으로 칼라브라운관은 판넬(미도시)과 펀넬(14) 그리고 네크부(4)로 외곽용기가 구성되고 상기 네크부(4)에는 전자총이 내장되며, 상기 전자총 전방에는 전자총에서 발사된 3개의 전자빔을 접속시켜주는 역할을 하는 씨피엠이 있고, 상기 씨피엠 전방에는 집속된 3개의 전자빔을 편향시켜주는 편향요크(15)가 위치하게 된다.In general, a color-brown tube consists of a panel (not shown), a funnel 14, and a neck portion 4, and an outer container. An electron gun is embedded in the neck portion 4, and three electron beams emitted from the electron gun in front of the electron gun. There is a CPM that serves to connect the, and the deflection yoke 15 for deflecting the focused three electron beam is located in front of the CPM.

그리고 상기 씨피엠을 고정하기 위해서는 제 1 도에 도시된 바와 같이 3개의 전자빔 중 센타 퓨리티 특성을 맞추는 2극 마그네트(9)와, R, B 전자빔을 맞추는 4극 마그네트(10)와, R, G 전자빔을 맞추는 6극 마그네트(11)가 있고, 각 극 사이에 링(13)이 위치하며, 상기 6극 마그네트(11) 뒤에는 이들을 고정하기 위한 라커링(12)이 고정되게 된다.In order to fix the CPM, as illustrated in FIG. 1, a two-pole magnet 9 matching center purity characteristics among three electron beams, a four-pole magnet 10 matching R and B electron beams, and R and G There is a six-pole magnet (11) to match the electron beam, the ring 13 is located between each pole, behind the six-pole magnet (11) to lock the locking ring 12 for fixing them.

그리고 펀넬(14)과 고정하기 위해 볼트(5)가 결합된 철재밴드(6)와, 상기 구조물을 지지하기 위한 홀더(7)로 이루어져 네크부(4)에 접착성물질이 도포된 접착테이프(8)를 접착시킨 상태에서, 내면에 돌기(7a)를 가진 네크접착부(7)를 삽입시키고 볼트(5)를 이용하여 철재밴드(6)를 조여줌으로써 씨피엠이 유동되는 것을 방지하게 된다.And an adhesive tape coated with an adhesive material on the neck portion 4 consists of a steel band 6, the bolt 5 is coupled to secure the funnel 14, and a holder 7 for supporting the structure ( 8) in the bonded state, by inserting the neck adhesive portion 7 having the projection (7a) on the inner surface and tightening the steel band (6) by using the bolt (5) to prevent the CPM flow.

또한 판넬의 안쪽면에는 3색으로 발광되는 형광체가 도포되어 있고 그 근접부에는 일정간격을 유지하도록 공극형상 또는 원형상의 가는 구멍이 무수히 뚫린 새도우마스크가 설치되어 프레임과 용접 고정되어 있다.In addition, phosphors emitting three colors of light are coated on the inner surface of the panel, and shadow masks having numerous voids in the form of voids or circular holes are installed in the vicinity of the panel and welded to the frame.

따라서 전자총에서 발사된 3개의 전자빔은 씨피엠에 의해 1개로 집속되고 편향요크장치에 의해 색선별 역할을 하는 새도우마스크에 형성된 구멍을 통과하여 소정의 형광체에 투사되어 발광되지만 전자빔의 나머지 부분은 새도우마스크에 직접투사된다.Therefore, the three electron beams emitted from the electron gun are focused by one CPM and projected to a predetermined phosphor through a hole formed in the shadow mask, which serves as color screening by the deflection yoke device, but the remaining portion of the electron beam is shadow mask. Projected directly to

그러나 종래의 장치는 제조공정에서 컨버젼스나 퓨리티를 정확히 조절하였다 하더라도 브라운관의 장시간 동작시에 네크부(4)에 내장된 전자총의 히터에 의해 네크부의 온도가 60~80도까지 상승하게 되므로 접착테이프(8)의 접착면이 약화되고, 이에 따라 브라운관의 네크부(4)에 장착된 씨피엠은 열충격에 의해 홀더(7)형상이 변형되어 퓨리티와 컨버젼스에 악영향을 주며 이로 인하여 양질의 화상을 얻을 수 없게 되는 문제점이 있었다.However, in the conventional apparatus, even if the convergence or purity is precisely controlled in the manufacturing process, the temperature of the neck portion is increased to 60 to 80 degrees by the heater of the electron gun embedded in the neck portion 4 during the long time operation of the CRT. 8) the adhesive surface is weakened, CPM mounted on the neck portion 4 of the CRT is deformed holder shape due to thermal shock, which adversely affects the purity and convergence, thereby obtaining a good image. There was a problem of disappearing.

본 발명은 이러한 점을 감안하여 네크부의 외측에 단열재질의 봉을 고정시키고, 그 외측에는 시피엠의 네크 접촉부 돌기가 접촉되면서 고정될 수 있도록 구성함으로서, 본 발명 단열재질의 봉이 전자총의 음극에서 발생되는 열에 의해 네크부가 가열되는 것을 막아주어 열변형에 의한 씨피엠의 유동을 방지하고, 이에 따라 음극선관의 컨버젼스나 퓨리티를 일정하게 유지하여 제품의 신뢰성을 향상시키도록 하는데 목적이 있다.In consideration of this point, the present invention is configured to fix the rod of the insulating material on the outside of the neck portion, and to be fixed while the neck contact protrusion of the CPM is contacted on the outside thereof, so that the rod of the insulating material of the present invention is applied to heat generated by the cathode of the electron gun. It is intended to prevent the neck portion from being heated to prevent the flow of the CPM due to thermal deformation, and thereby to maintain the convergence or purity of the cathode ray tube to improve the reliability of the product.

본 발명을 제 3 도 및 제 4 도를 참조하여 이하에서 상세히 설명한다.The invention is described in detail below with reference to FIGS. 3 and 4.

먼저 구성을 살펴보면 펀넬(114)의 후단에 형성되는 네크부(104)와, 상기 네크부(104)의 외측면에 장착되는 단열재질의 봉(101)과, 상기 봉(101)을 볼트(102)에 의해 고정시켜주는 제2철재밴드(103)와, 상기 봉(101) 위를 감아쥐는 접착테이프(108)와, 상기 접착테이프(108)에 밀착 조정되는 씨피엠으로 구성되며, 상기 씨피엠은 2극 마그네트(109), 4극 마그네트(110), 6극 마그네트(111)가 있고, 상기 마그네트 사이에는 링(113)이 위치하며, 상기 6극 마그네트(111) 뒤에는 이들을 고정하기 위한 라커링(112)이 고정되게 되는데, 상기 구조물을 네크부(104)와 고정하기 위해 볼트(105)가 결합된 제1철재밴드(106)와 상기 구조물을 지지하기 위한 홀더(107)로 이루어져 내면에 형성된 돌기(107a)가 접착테이프(108)에 밀착되면서 고정되게 된다.Looking at the configuration first, the neck portion 104 formed on the rear end of the funnel 114, the heat insulating rod 101 is mounted on the outer surface of the neck portion 104, and the rod 101 bolts 102 The second steel band 103 to be fixed by the, the adhesive tape 108 is wound around the rod 101, and the CPM is tightly adjusted to the adhesive tape 108, the CPM is There are a 2-pole magnet 109, a 4-pole magnet 110, a 6-pole magnet 111, the ring 113 is located between the magnets, behind the six-pole magnet 111 to lock them to fix them ( 112 is fixed, a protrusion formed on the inner surface consisting of a first steel band 106 to which the bolt 105 is coupled to fix the structure with the neck portion 104 and a holder 107 for supporting the structure. 107a is fixed while being in close contact with the adhesive tape 108.

이와 같이 구성된 상태에서 삽입공을 가진 단열재질의 봉(101)을 철재밴드 (103)와 볼트(102)에 의해 부라운관의 네크부(104)에 결합시키도록 되어 있는데, 이때, 삽입공의 내경은 29.3~29.5mm정도로 하는 것이 바람직하다.In this configuration, the insulating rod 101 having the insertion hole is coupled to the neck portion 104 of the round tube by the steel band 103 and the bolt 102. In this case, the inner diameter of the insertion hole is It is preferable to set it as about 29.3-29.5mm.

이는 네크부(104)의 외경이 29.1mm이므로 작업성을 고려한 것으로서, 만약 삽입공이 네크부(104)의 외경이 작은 것을 사용하면 상호 장착시키는 작업이 곤란하게 된다.Since the outer diameter of the neck portion 104 is 29.1mm, workability is taken into consideration, and if the insertion hole uses a small outer diameter of the neck portion 104, it is difficult to mutually mount the work.

또한 삽입공이 네크부(104)의 외경보다 훨씬 큰 것을 사용할 경우에는 네크부와의 유동이 발생하여 원하는 위치에 정확히 고정시킬 수 없게 된다. 따라서 네크부(104)의 일정위치에 단열재질의 봉(101)을 위치시킨 후 펀넬(114)쪽 위치에 있는 철재밴드(103)와 볼트(102)로 고정시켜서 내크부(104)에 견고하게 고정시킬 수 있다.In addition, when the insertion hole is used that is much larger than the outer diameter of the neck portion 104, the flow with the neck portion is generated it will not be able to be accurately fixed to the desired position. Therefore, after positioning the rod 101 of the insulating material at a predetermined position of the neck portion 104 and fixed to the inner portion 104 by fixing the steel band 103 and the bolt 102 at the position of the funnel 114 side. You can.

이와 같은 상태에서 접착테이프(108)를 감아준 후 씨피엠을 밀어 넣어 씨피엠의 철재밴드(106)가 단열재질의 봉(101) 위치와 일치되도록 한 후에 칼라브라운관의 컨버젼스와 퓨리티를 최적의 상태로 조정하게 된다.After wrapping the adhesive tape 108 in such a state, the CPM is pushed in so that the CPM steel band 106 is aligned with the position of the rod 101 of the insulating material, and then the convergence and purity of the color brown tube are optimized. Will be adjusted.

그 후 철재밴드(106)를 조여주기 위한 볼트(105)를 회전시키면 네크 접촉부와(107)의 내측면에 형성된 돌기(107a)가 접착테이프(108)에 밀착되어 칼라브라운관의 장시간 동작시 전자총의 히터에 의한 발열로 네크부(104)의 온도가 상승되더라도 단열재질의 봉(101)이 열전달을 차단하여 씨피엠은 히터에 의한 열충격을 받지 않게 된다.Thereafter, when the bolt 105 for tightening the steel band 106 is rotated, the projection 107a formed on the inner side of the neck contact portion 107 is brought into close contact with the adhesive tape 108, and the electron gun can Even if the temperature of the neck portion 104 is increased by the heat generated by the heater, the rod 101 of the insulating material blocks heat transfer so that the CPM is not subjected to a thermal shock by the heater.

결국 씨피엠의 홀더(107)는 재질이 변형되지 않으므로 컨버젼스와 퓨리티를 맞추는 2, 4, 6극의 유동을 방지할 수 있는 것이다.After all, the holder 107 of the CPM is able to prevent the flow of 2, 4, 6 poles to match the convergence and purity because the material is not deformed.

이상에서 살펴본 바와 같은 본 발명은 전자총이 장착되는 네크부 외측에 단열재질의 봉을 결합하여 전자총에 의한 발열로 네크부가 가열되면서 발생할 수 있는 씨피엠의 유동을 미연에 방지하고, 이에 의해 생산시 조정되었던 컨버젼스나 퓨리티가 일정하게 되어 제품의 신뢰도를 향상시키도록 하는 발명이다.As described above, the present invention combines a rod of a heat insulating material to the outside of the neck portion on which the electron gun is mounted to prevent the flow of CPM that may occur while the neck portion is heated by heat generated by the electron gun, thereby adjusting the production. The invention is to improve the reliability of the product by the constant convergence or purity.

제 1 도는 종래 음극선관의 씨피엠 구성 상태도.1 is a CPM configuration state diagram of a conventional cathode ray tube.

제 2 도는 제 1 도의 A-A부 단면도.2 is a sectional view taken along the line A-A of FIG.

제 3 도는 본 발명에 의한 씨피엠의 장착부 상태도.3 is a state diagram of the mounting portion of the CPM according to the present invention.

제 4 도는 제 3 도의 B-B부 단면도.4 is a sectional view taken along the line B-B in FIG.

*** 도면의 주요 부분에 대한 도면 부호 설명 ****** Explanation of reference numerals for the main parts of the drawing ***

101 : 단일재질 봉 103 : 제2철재밴드101: single material rod 103: second steel band

104 : 네크부 106 : 제1철재밴드104: neck portion 106: the first steel band

107 : 홀더 108 : 접착테이프107: holder 108: adhesive tape

114 : 펀넬114: Funnel

Claims (3)

음극에서 생성된 전자빔을 집속하도록 2, 4, 6극 마그네트로 이루어진 씨피엠과,CPM consisting of 2, 4 and 6 pole magnets to focus the electron beam generated from the cathode, 상기 씨피엠을 네크부 외측에 고정시키기 위한 제1철재밴드로 구성된 네크부 구조에 있어서,In the neck portion structure consisting of a first steel band for fixing the CPM outside the neck portion, 상기 씨피엠으로 전자총의 히터에서 발생된 열이 전달되지 않도록 네크부 외측에 접착테이프를 부착하고, 상기 접착테이프 외면에 단열 재질의 봉을 장착한 것을 특징으로 하는 칼라브라운관의 씨피엠 유동방지장치.CPM flow preventing device of the color Brown tube, characterized in that the adhesive tape is attached to the outside of the neck portion so that the heat generated from the heater of the electron gun to the CPM, and a rod of a heat insulating material is mounted on the outer surface of the adhesive tape. 제 1 항에 있어서,The method of claim 1, 상기 단열재질의 봉은 제 2 철재밴드에 의하여 네크부에 고정된 것을 특징으로 하는 칼라브라운관의 씨피엠 유동방지장치.The rod of the insulating material is CPM flow prevention device of the color Brown tube, characterized in that fixed to the neck portion by a second steel band. 제 1 항에 있어서,The method of claim 1, 상기 단열재질의 봉은 내경을 29.3mm~29.5mm로 구비한 것을 특징으로 하는 칼라브라운관의 씨피엠 유동방지장치.Rod of the insulation material CPM flow prevention device of the color Brown tube, characterized in that provided with an inner diameter of 29.3mm ~ 29.5mm.
KR1019960005026A 1996-02-28 1996-02-28 Apparatus for preventing floating phenomenon of cpm in color crt KR100354925B1 (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
KR101538670B1 (en) * 2013-12-04 2015-07-22 주식회사 쎄크 X-ray generating apparatus
US9268026B2 (en) 2012-02-17 2016-02-23 Samsung Electronics Co., Ltd. Method and apparatus for location positioning in electronic device

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JPS5818843A (en) * 1981-07-24 1983-02-03 Nec Corp Color cathode-ray tube
JPH0261935A (en) * 1988-08-26 1990-03-01 Mitsubishi Electric Corp Charge drift prevention and color picture tube
KR930026492U (en) * 1992-05-06 1993-12-28 오리온전기 주식회사 Deflection yoke clamp part structure of CRT
US5350968A (en) * 1991-08-29 1994-09-27 Gold Star Co., Ltd. Deflection yoke mounting apparatus for a color picture tube
KR940023515U (en) * 1993-03-08 1994-10-22 Colored cathode ray tube

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Publication number Priority date Publication date Assignee Title
JPS5818843A (en) * 1981-07-24 1983-02-03 Nec Corp Color cathode-ray tube
JPH0261935A (en) * 1988-08-26 1990-03-01 Mitsubishi Electric Corp Charge drift prevention and color picture tube
US5350968A (en) * 1991-08-29 1994-09-27 Gold Star Co., Ltd. Deflection yoke mounting apparatus for a color picture tube
KR930026492U (en) * 1992-05-06 1993-12-28 오리온전기 주식회사 Deflection yoke clamp part structure of CRT
KR940023515U (en) * 1993-03-08 1994-10-22 Colored cathode ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9268026B2 (en) 2012-02-17 2016-02-23 Samsung Electronics Co., Ltd. Method and apparatus for location positioning in electronic device
KR101538670B1 (en) * 2013-12-04 2015-07-22 주식회사 쎄크 X-ray generating apparatus

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