KR930000780Y1 - Color cathode-ray tube - Google Patents
Color cathode-ray tube Download PDFInfo
- Publication number
- KR930000780Y1 KR930000780Y1 KR2019900016764U KR900016764U KR930000780Y1 KR 930000780 Y1 KR930000780 Y1 KR 930000780Y1 KR 2019900016764 U KR2019900016764 U KR 2019900016764U KR 900016764 U KR900016764 U KR 900016764U KR 930000780 Y1 KR930000780 Y1 KR 930000780Y1
- Authority
- KR
- South Korea
- Prior art keywords
- shadow mask
- ray tube
- color cathode
- cathode ray
- coating layer
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
- H01J29/073—Mounting arrangements associated with shadow masks
-
- 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
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0722—Frame
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- Electrodes For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
내용 없음.No content.
Description
제1도는 일반적인 칼라음극선관의 입단면도.1 is a cross-sectional view of a typical color cathode ray tube.
제2도는 본 고안에 따른 섀도우마스크 프레임 조립체의 사시도.2 is a perspective view of a shadow mask frame assembly according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 패널 3 : 새도우마스크 프레임 조립체2 panel 3: shadow mask frame assembly
3a : 섀도우마스크 3b : 프레임3a: Shadow Mask 3b: Frame
4 : 펀넬 4a : 네크부4: funnel 4a: neck portion
5 : 전자총5: electron gun
본 고안은 칼라음극선관에 관한 것으로서, 더 상세하게는 음극선관의 패널내면과 소정간격 이격되도록 그 내부에 설치된 섀도우마스크의 도밍현상을 방지할 수 있도록 된 칼라음극선관에 관한 것이다.The present invention relates to a color cathode ray tube, and more particularly, to a color cathode ray tube capable of preventing the doming phenomenon of a shadow mask provided therein so as to be spaced apart from the panel inner surface of the cathode ray tube by a predetermined distance.
통상적으로 칼라음극선관은 제1도에 나타내 보인 바와 같이 그 내면에 형광막(2a)이 형성되며 이 형광막(2a)과 소정간격 이격된 섀도우마스크 프레임 조립체(3)가 그 내부에 설치된 패널(2)과, 그 네크부(4a)에 전자총(5)이 봉입된 펀넬(4)이 상호 봉착되어 된 것이다. 이와 같은 칼라음극선관(1)은 상기 전자총(5)으로 부터 방출된 전자빔은 섀도우마스크 프레임 조립체(3)의 섀우마스크(3a)에 형성된 전자빔통과공을 통과하여 형광막(2a)의 형광체에 렌딩됨으로써 하나의 화소를 이루게 되고 이들 화소가 모여 하나의 화면을 이루게 된다. 그런데, 상기 전자총(5)으로 부터 방출된 전자빔은 섀도우마스크(3a)의 전자빔통과공을 모두 통과하지 못하고 그 일부가 섀도우마스크(3a)에 충돌되어 섀도우마스크(3a)를 가열하게 된다. 따라서 섀도우마스크(3a)는 그 재질의 열팽창량에 의해 팽창하게 되어 형광막(2a)측으로 볼록하게 부푸는 도밍현상이 야기되게 된다. 이와같은 섀도우마스크(3a)의 도밍현상은 전자총(5)으로부터 방출되어 섀도우마스크(3a)를 통과한 전자빔이 형광막의 도트 또는 스트라이프형상의 형광체에 정확하게 랜딩되지 못하게 되므로 화면의 해상도가 저하되게 된다.In general, as shown in FIG. 1, a color cathode ray tube includes a panel in which a fluorescent film 2a is formed, and a shadow mask frame assembly 3 spaced apart from the fluorescent film 2a by a predetermined distance is formed therein. 2) and the funnel 4 in which the electron gun 5 is sealed in the neck part 4a are mutually sealed. In the color cathode ray tube 1, the electron beam emitted from the electron gun 5 passes through an electron beam passing hole formed in the shadow mask 3a of the shadow mask frame assembly 3 and is then rendered to the phosphor of the fluorescent film 2a. As a result, one pixel is formed and these pixels are gathered to form a screen. However, the electron beam emitted from the electron gun 5 does not pass all the electron beam through holes of the shadow mask 3a, and a part of the electron beam collides with the shadow mask 3a to heat the shadow mask 3a. Therefore, the shadow mask 3a expands due to the thermal expansion amount of the material, resulting in a dominant phenomenon in which the shadow mask 3a is convexly swollen toward the fluorescent film 2a. Since the dominant phenomenon of the shadow mask 3a is emitted from the electron gun 5 and the electron beam passing through the shadow mask 3a is not accurately landed on the dot or stripe-shaped phosphor of the fluorescent film, the resolution of the screen is reduced.
이러한 섀도우마스크(3a)의 열팽창에 의한 도밍현상을 개선하기 위하여 열용량이 적으며 열전도도가 좋은 인바를 사용하고 있으나 도밍현상을 극소화시킬수는 없었다.In order to improve the dominant phenomenon due to thermal expansion of the shadow mask 3a, an invar having a low heat capacity and good thermal conductivity was used, but the dominant phenomenon could not be minimized.
본 고안은 상술한 문제점을 해결하기 위하여 안출된 것으로서, 전자총으로부터 방출된 전자빔에 의해 가열됨으로써 발생하는 섀도우마스크의 도밍현상을 극소화 할 수 있으며 나아가서는 화면의 해상도를 향상시킬 수 있는 음극선관을 제공함에 그 목적이 있다.The present invention has been made to solve the above-described problems, it is possible to minimize the dominant phenomenon of the shadow mask generated by heating by the electron beam emitted from the electron gun and further to provide a cathode ray tube that can improve the resolution of the screen The purpose is.
상기 목적을 달성하기 위하여 본 고안은 그 내부에 섀도우마스크 프레임 조립체가 장착된 패널과 그 네크부에 전자총이 봉입된 판넬이 봉착되어 된 칼라음극선관에 있어서, 상기 섀도우마스크 프레임 조립체에 열용량이 매우 적고 열전도도가 좋은 금속코팅층을 형성하여 된 것을 그 특징으로 한다.In order to achieve the above object, the present invention is a color cathode ray tube in which a panel having a shadow mask frame assembly mounted therein and a panel in which an electron gun is enclosed in its neck is sealed, and the heat capacity of the shadow mask frame assembly is very low. It is characterized by the fact that a metal coating layer having good thermal conductivity is formed.
이하 첨부된 도면을 참조하여 본 고안에 따른 한 바람직한 실시예를 상세하게 설명한다. 각 도면에 있어서 동일한 부품은 동일부호로서 표시한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same parts are denoted by the same reference numerals.
제1도에 나타내 보인 음극선관(1)은 그 내면에 형광막(2a)이 형성된 패널(2)의 내부에 섀도우마스크(3a)와 프레임(3b)이 결합되 섀도우마스크 프레임 조립체(3)가 설치된다. 이때에 상기 섀도우마스크 프레임 조립체(3)는 프레임(3b)의 외측면에 형성된 축스프링(3c)과 패널(2) 내측면에 고정설치된 스터드핀(2b)이 결합됨으로써 패널(2)내부에 설치되게 된다. 그리고 상기 패널(2)은 그 네크부(4a)에 전자총(5)이 봉입된 펀넬(4)과 봉착된다.The cathode ray tube 1 shown in FIG. 1 has a shadow mask frame assembly 3 in which a shadow mask 3a and a frame 3b are coupled to an inside of a panel 2 having a fluorescent film 2a formed therein. Is installed. At this time, the shadow mask frame assembly (3) is installed inside the panel (2) by coupling the shaft spring (3c) formed on the outer surface of the frame (3b) and the stud pin (2b) fixed to the inner surface of the panel (2) Will be. The panel 2 is sealed with the funnel 4 in which the electron gun 5 is sealed in the neck portion 4a.
그리고 본 고안의 특징에 따라 이와 같이 구성된 섀도우마스크 프레임 조립체(3)에는 높은 열용량과 열전도를 가지는 금속코팅층이 형성되어 있다. 이때에 증착된 금속은 알루미늄을 사용함이 바람직하며 상기 섀도우마스크 프레임 조립체(3)의 섀도우마스크(3a)에 금속코팅층을 형성하는 증착된 금속보다 프레임(3b)에 금속코팅층을 형성하는 증착된 금속의 열흡수율이 좋은 것을 사용함이 바람직하다.And the shadow mask frame assembly 3 configured as described above according to the features of the present invention is formed with a metal coating layer having a high heat capacity and thermal conductivity. At this time, the deposited metal is preferably aluminum and the deposited metal forming the metal coating layer on the frame 3b rather than the deposited metal forming the metal coating layer on the shadow mask 3a of the shadow mask frame assembly 3. It is preferable to use a thing with good heat absorption.
이와 같이 구성된 본 고안에 따른 음극선관(1)은 전자총(1)으로부터 방출되어 섀도우마스크(3a)의 전자빔통과공을 통과하지 못한 열전자에 의해 가열되게 되는데, 상기 섀도우마스크(3a) 및 프레임(3b)에는 열용량이 매우 적고 열전도도가 좋은 금속코팅층 즉, 알루미늄이 증착되어 있으므로 상기 섀도우마스크(3a)의 도밍현상을 방지할 수 있게 된다. 즉, 상기 섀도우마스크(3a)에 열전자가 충돌하게 되면, 상기 섀도우마스크(3a)에 금속코팅층을 형성하는 알루미늄에 의해 프레임(3b)측으로 짧은 시간내에 열전도되어 섀도우 마스크(3a)의 도밍현상을 극소화할 수 있게 되는 것이다.The cathode ray tube 1 according to the present invention configured as described above is heated by heat electrons which are emitted from the electron gun 1 and do not pass through the electron beam passing hole of the shadow mask 3a, and the shadow mask 3a and the frame 3b. ) Is a metal coating layer having a very low heat capacity and good thermal conductivity, that is, aluminum is deposited, it is possible to prevent the dominant phenomenon of the shadow mask (3a). That is, when hot electrons collide with the shadow mask 3a, heat conduction is performed in a short time by the aluminum forming the metal coating layer on the shadow mask 3a to the frame 3b, thereby minimizing the doming phenomenon of the shadow mask 3a. You can do it.
본원인의 실험에 의하면 섀도우마스크 프레임 조립체(3)에 상기 금속코팅층을 형성하지 않은 경우 섀도우마스크 최대 도밍량이 65㎛이고, 화면 안정화시간이 10분이었으나 상기 섀도우마스크 프레임 조립체(3)에 금속코팅층을 형성하였을 경우 섀도우마스크의 도밍량이 37.5 내지 40㎛이고 화면 안정화시간이 3분이었다.According to the experiments of the present inventors, when the metal coating layer was not formed in the shadow mask frame assembly 3, the maximum shadow masking amount was 65 μm and the screen stabilization time was 10 minutes, but the metal coating layer was applied to the shadow mask frame assembly 3. When formed, the shadowing dose of the shadow mask was 37.5 to 40 µm and the screen stabilization time was 3 minutes.
이와 같이 본 고안은 칼라음극선관은 전자총으로부터 방출된 열전자에 의해 가열됨으로써 발생되는 도밍현상을 극소화 할 수 있으며 나아가서는 전자총으로부터 방출된 전자빔을 형광막의 각 형광체에 정확하게 랜딩시킬수 있으므로 음극선관에 해상도를 향상시킬 수 있게 된다.As described above, the color cathode ray tube can minimize the doming phenomenon caused by heating by the hot electrons emitted from the electron gun and further improve the resolution of the cathode ray tube because the electron beam emitted from the electron gun can be accurately landed on each phosphor of the fluorescent film. You can do it.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019900016764U KR930000780Y1 (en) | 1990-11-01 | 1990-11-01 | Color cathode-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR2019900016764U KR930000780Y1 (en) | 1990-11-01 | 1990-11-01 | Color cathode-ray tube |
Publications (2)
Publication Number | Publication Date |
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KR920010323U KR920010323U (en) | 1992-06-17 |
KR930000780Y1 true KR930000780Y1 (en) | 1993-02-25 |
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KR2019900016764U KR930000780Y1 (en) | 1990-11-01 | 1990-11-01 | Color cathode-ray tube |
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1990
- 1990-11-01 KR KR2019900016764U patent/KR930000780Y1/en not_active IP Right Cessation
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KR920010323U (en) | 1992-06-17 |
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