KR200162361Y1 - Cathode ray tube - Google Patents
Cathode ray tube Download PDFInfo
- Publication number
- KR200162361Y1 KR200162361Y1 KR2019940015160U KR19940015160U KR200162361Y1 KR 200162361 Y1 KR200162361 Y1 KR 200162361Y1 KR 2019940015160 U KR2019940015160 U KR 2019940015160U KR 19940015160 U KR19940015160 U KR 19940015160U KR 200162361 Y1 KR200162361 Y1 KR 200162361Y1
- Authority
- KR
- South Korea
- Prior art keywords
- ray tube
- cathode ray
- funnel
- panel
- electron gun
- Prior art date
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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
- H01J29/006—Arrangements for eliminating unwanted temperature effects
-
- 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
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
본 고안은 음극선관을 개시한다.The present invention discloses a cathode ray tube.
본 고안은 내면에 형광막이 형성된 패널과, 이 패널과 봉착되며 그 내부에 전자총이 봉입된 펀넬을 구비하여 된 음극선관에 관한 것으로 상기 펀넬의 내주면에 열을 방출하는 방열수단이 설치된 것에 그 특징이 있으며, 이는 음극선관 내부 부품의 열팽창에 따른 전자빔의 드리프트 현상을 방지할 수 있는 이점을 가진다.The present invention relates to a cathode ray tube having a panel having a fluorescent film formed on its inner surface, and a funnel sealed to the panel and having an electron gun sealed therein, wherein heat dissipation means for dissipating heat is installed on an inner circumferential surface of the funnel. This has the advantage of preventing drift of the electron beam due to thermal expansion of the cathode ray tube internal parts.
Description
제1도는 일반적인 음극선관이 입단면도.1 is a typical cathode ray tube cross-sectional view.
제2도는 본 고안에 따른 음극선관의 입단면도.2 is a cross-sectional view of the cathode ray tube according to the present invention.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
30 : 패널 31 : 형광막30 panel 31 fluorescent film
32 : 섀도우마스크 프레임 조립체 40 : 펀넬32: shadow mask frame assembly 40: funnel
42 : 전자총 44 : 편향요오크42: electron gun 44: deflection yoke
100 : 방열수단100: heat dissipation means
본 고안은 음극선관에 관한 것으로, 더 상세하게는 방열특성이 향상된 음극선관에 관한 것이다.The present invention relates to a cathode ray tube, and more particularly to a cathode ray tube with improved heat radiation characteristics.
통상적으로 음극선관은 제1도에 도시된 바와 같이 내부에 형광막(11)이 형성된 패널(10)과, 상기 형광막(11)과 소정간격 이격되도록 설치된 섀도우마스크 프레임 조립체(12)와, 상기 패널(10)과 봉착되는 것으로 그 네크부(21)에 전자총(22)이 봉입되고 콘부(23)에 편향요오크(24)가 장착된 펀넬을 구비하여 구성된다.Typically, as shown in FIG. 1, the cathode ray tube includes a panel 10 having a fluorescent film 11 formed therein, a shadow mask frame assembly 12 installed to be spaced apart from the fluorescent film 11 by a predetermined distance, and Sealed with the panel 10, the neck portion 21 is filled with an electron gun 22, and the cone portion 23 is provided with a funnel equipped with a deflection yoke 24.
상기와 같이 구성된 음극선관은 상기 전자총(22)으로부터 방출된 전자빔이 형광막의 주사위치에 따라 선택적으로 편향되어 형광막에 랜딩됨으로써 화상을 형성하게 된다. 이와 같이 작동되는 음극선관은 상기 전자총(22)로부터 열전자가 방출되게 되고 편향요오크의 코일에 고압의 전압이 인가 되므로 가열되게 된다. 따라서 음극선관을 구성하는 각 부품의 전기적 저항이 커져 음극선관의 성능이 저하되는 문제점이 내재되어 있었다.In the cathode ray tube configured as described above, the electron beam emitted from the electron gun 22 is selectively deflected according to the dice of the fluorescent film and landed on the fluorescent film to form an image. The cathode ray tube operated as described above is heated because electrons are emitted from the electron gun 22 and a high voltage is applied to the coil of the deflection yoke. Therefore, there is a problem in that the electrical resistance of each component constituting the cathode ray tube is increased and the performance of the cathode ray tube is degraded.
본 고안은 상기 문제점을 해결하기 위하여 안출된 것으로, 그 내부로부터의 방열효율을 향상시켜 각 부품의 저항이 커지는 것을 방지할 수 있으며, 음극선관의 내부에 설치된 각 부품이 열팽창되어 발생되는 전자빔의 드리프트 현상을 줄일 수 있는 음극선관을 제공함에 그 목적이 있다.The present invention is devised to solve the above problems, it is possible to improve the heat dissipation efficiency from the inside to prevent the resistance of each component increases, and the drift of the electron beam generated by the thermal expansion of each component installed inside the cathode ray tube The purpose is to provide a cathode ray tube that can reduce the phenomenon.
상기 목적을 달성하기 위하여 본 고안은, 내면에 형광막이 형성된 패널과, 이 패널과 봉착되며 그 내부에 전자총이 봉입된 펀넬을 구비하여 된 음극선관에 있어서, 상기 펀넬의 내주면에 열을 방출하는 방열수단이 설치된 것을 그 특징으로 한다.In order to achieve the above object, the present invention, in the cathode ray tube provided with a panel having a fluorescent film formed on the inner surface, and a funnel sealed to the panel and the electron gun is sealed therein, the heat dissipation to release heat to the inner peripheral surface of the funnel It is characterized in that the means are provided.
상기 방열수단은 펀넬의 내주면에 질화붕소 또는 세라믹이 도포 또는 증착된 것이다.The heat dissipation means is a boron nitride or ceramic is coated or deposited on the inner peripheral surface of the funnel.
이하 첨부된 도면을 참조하여 본 고안에 따른 한 바람직한 실시예를 상세하게 설명하면 다음과 같다.Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.
본 고안에 따른 음극선관은 제2도 도시된 바와 같이 내면에 형광막(31)이 형성되고 이 형광막과 소정간격 이격되도록 섀도우마스크 프레임 조립체(32)가 설치된 패널(30)과, 이 패널(30)과 봉착되는 것으로, 그 네크부에 전자총(42)이 봉입되고 콘부(43)에 편향요오크(44)가 설치된 펀넬(40)을 구비하여 구성된다. 그리고 이 펀넬(40)의 내부에는 본 고안의 특징에 따라 상기 펀넬(40)의 내부에 방열수단(100)이 설치된다. 이 방열수단(100)은 펀넬(40)의 내주면에 질화붕소, 알루미늄, 세라믹중 적어도 하나가 도포 또는 증착되어 이루어진다.As shown in FIG. 2, the cathode ray tube according to the present invention includes a panel 30 in which a fluorescent film 31 is formed on an inner surface thereof and a shadow mask frame assembly 32 is installed to be spaced apart from the fluorescent film by a predetermined distance, and the panel ( 30), an electron gun 42 is enclosed in the neck portion and a funnel 40 provided with a deflection yoke 44 in the cone portion 43 is configured. And inside the funnel 40, the heat dissipation means 100 is installed in the funnel 40 in accordance with the features of the present invention. The heat dissipation means 100 is formed by coating or depositing at least one of boron nitride, aluminum, and ceramic on the inner circumferential surface of the funnel 40.
이와같이 구성된 본 고안에 따른 음극선관의 작용을 설명하면 다음과 같다.Referring to the operation of the cathode ray tube according to the present invention configured as described above are as follows.
본 고안에 따른 음극선관은 상기 전자총(42)과 편향요오크(44)에 소정의 전위가 인가됨에 따라 상기 전자총(42)으로부터 열전자가 방출되어 형광막(31)에 랜딩됨으로써 화상을 형성하게 되는데, 상기 전자총(42)으로부터 방출된 전자빔은 히이터에 의해 열전자 방출물질을 가열함으로써 이루어지게 되고, 편향요오크(44)의 코일에는 높은 파라볼라형의 전압이 인가되게 되므로 높은 열이 발생되게 된다. 이와 같이 발생된 열은 전자총(42)을 이루는 각 부품을 열팽창시켜 전자빔의 서어멀 드리프트 현상을 야기시키게 되는데, 상기 음극선관의 펀넬 내부에는 질화붕소 또는 알루미늄등으로 이루어진 방열수단이 설치되어 있으므로 상기 전자총(42)의 전극과 섀도우마스크 프레임 조립체(32)가 열팽창됨으로써 발생되는 전자빔의 드리프트 현상 또는 섀도우마스크의 도밍량을 줄일 수 있다. 이를 더욱 상세하게 설명하면 상기 전자총(42) 또는 편향요오크(44)로부터 발생된 열은 펀넬의 내부에 설치된 방열수단에 의해 음극선관의 패널(30) 내외부로 방출되게 되므로 음극선관의 온도가 높아지는 것을 방지할 수 있고, 나아가서는 음극선관이 과열되는 것을 방지할 수 있다.In the cathode ray tube according to the present invention, as a predetermined potential is applied to the electron gun 42 and the deflection yoke 44, hot electrons are emitted from the electron gun 42 to be landed on the fluorescent film 31 to form an image. The electron beam emitted from the electron gun 42 is made by heating a hot electron emission material by a heater, and a high parabolic voltage is applied to the coil of the deflection yoke 44 to generate high heat. The generated heat causes thermal drift of the electron beam by thermally expanding each component of the electron gun 42. Since the heat dissipation means made of boron nitride or aluminum is installed inside the funnel of the cathode ray tube, the electron gun It is possible to reduce the drift phenomenon of the electron beam generated by the thermal expansion of the electrode and the shadow mask frame assembly 32 of the 42 or the amount of dominance of the shadow mask. In more detail, since the heat generated from the electron gun 42 or the deflection yoke 44 is released into and out of the panel 30 of the cathode ray tube by heat dissipation means installed in the funnel, the temperature of the cathode ray tube is increased. Can be prevented, and furthermore, the cathode ray tube can be prevented from overheating.
이와같이 본 고안 음극선관은 음극선관이 전자총으로부터 방출되는 열전자와 편향요오크에 의해 과열되는 것을 방지할 수 있으며, 결과적으로 전자빔을 형광막의 형광점에 정확하게 랜딩시킬 수 있어 화상의 해상도를 향상시킬 수 있는 이점을 가진다.As described above, the cathode ray tube of the present invention can prevent the cathode ray tube from being overheated by the hot electrons and deflection yokes emitted from the electron gun, and as a result, the electron beam can be accurately landed at the fluorescent point of the fluorescent film, thereby improving image resolution. Has an advantage.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940015160U KR200162361Y1 (en) | 1994-06-24 | 1994-06-24 | Cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019940015160U KR200162361Y1 (en) | 1994-06-24 | 1994-06-24 | Cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960003056U KR960003056U (en) | 1996-01-22 |
| KR200162361Y1 true KR200162361Y1 (en) | 1999-12-15 |
Family
ID=19386627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019940015160U KR200162361Y1 (en) | 1994-06-24 | 1994-06-24 | Cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200162361Y1 (en) |
-
1994
- 1994-06-24 KR KR2019940015160U patent/KR200162361Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR960003056U (en) | 1996-01-22 |
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