KR860000439B1 - Manufacturing method of color receiver - Google Patents

Manufacturing method of color receiver Download PDF

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KR860000439B1
KR860000439B1 KR1019840003735A KR840003735A KR860000439B1 KR 860000439 B1 KR860000439 B1 KR 860000439B1 KR 1019840003735 A KR1019840003735 A KR 1019840003735A KR 840003735 A KR840003735 A KR 840003735A KR 860000439 B1 KR860000439 B1 KR 860000439B1
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barium
getter
manufacturing
crt
outer portion
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KR860000687A (en
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황태효
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주식회사 금성사
허신구
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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
    • H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering

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  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

내용 없음.No content.

Description

소프트 플래쉬 칼라 브라운관의 제조 방법Manufacturing method of soft flash color CRT

제1도는 본 발명에 의한 소프트 플래쉬(Soft flash) 칼라 브라운관에서의 바륨겟타(Barium getter)의 부착 위치와 비산 상태를 알려주는 상세도.1 is a detailed view showing the attachment position and scattering state of a barium getter in a soft flash color CRT according to the present invention.

제2도는 일반적인 바륨겟타의 부착 구조와 바륨겟타의 구조단면도.2 is a general cross-sectional view of the barium getter attachment structure and the barium getter structure.

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

a : 애노드 보턴(1)에 대한 바륨겟타 (4)의 거리a: distance of barium getter (4) to anode button (1)

b : 제1의 바륨겟타 (4-2)의 외각부 (4-1)높이b: height of the outer portion 4-1 of the first barium getter 4-2

c : 제2의 바륨겟타(4-2)의 외각부(4-1) 높이c: Height of the outer portion 4-1 of the second barium getter 4-2

본 발명은 소프트 플래쉬(Soft flash) 칼라 브라운관의 제조 방법에 관한 것이다.The present invention relates to a method for producing a soft flash color CRT.

일반적인 칼라 브라운관에서는 제1도와 같이 애노드 보턴(1)에 통상 27Kv 정도의 고전압이 걸리고, 이것이 내부도전막(2)을 통해 전자총 G4전극(3)에 걸리게 된다. 그런데, 전자총의 전극 사이에서 방전(Arcing)이 일어나면 통상 700A(암페아) 정도의 아킹 전류(Flshover Current)가 회로쪽으로 들어가 회로부품(특히 IC, TR)에 손상을 준다.In a general color CRT, the anode button 1 is normally subjected to a high voltage of about 27 Kv, as shown in FIG. 1, and is caught by the electron gun G 4 electrode 3 through the inner conductive film 2. However, when an arcing occurs between the electrodes of the electron gun, an arcing current of about 700 A (amperes) usually enters the circuit and damages circuit components (particularly IC and TR).

그러므로, 소프트 플래쉬 칼라 브라운관에서는 내부 도전막(2) 부분의 내부 도전막을 그 저항치를 종전보다 10배 정도로 하여 전자총에 방전이 발생시 대부분의 에너지가 고정항의 내부 도전막에 의해 소모케 하여 회로쪽으로 흐르는 전류는 1/10 정도밖에 않돼 회로에 손산을 방지한다.Therefore, in the soft flash color CRT, the internal conductive film of the internal conductive film 2 portion is about 10 times its resistance value, and when the discharge of the electron gun occurs, most of the energy is consumed by the internal conductive film of the fixed term and flows toward the circuit. Is only about 1/10 to prevent damage to the circuit.

이러한 특성의 소프트 플래쉬 칼라 브라운관을 제조하려고 통상적으로 다음과 같이 처리한다.In order to produce soft flash color CRTs of this nature it is usually treated as follows.

1) 애노드 보턴(1)과 전자총 사이에 종래의 흑연(비저항 : 0.04Ω·cm)을 주 재료로 하는 도전막을 입히는 대신 산화철, 산화티탄을 주재 로 하는 고정항(비저항 : 2.5Ω·cm)의 내부 도전막을 입혀 저항치를 높힌다.1) Instead of applying a conductive film containing graphite (specific resistance: 0.04 Ωcm) as the main material between the anode button 1 and the electron gun, the fixed term (specific resistance: 2.5 Ωcm) mainly composed of iron oxide and titanium oxide. The internal conductive film is coated to increase the resistance.

2) 바륨겟타(4)의 용기 외각부(4-1)의 높이를 종전의 2.4mm(b)에서 4.2mm(c)로 높혀 바륨의 비산 방향을 상향으로 조정한 것이다.2) The height of the outer shell portion 4-1 of the barium getter 4 was increased from 2.4 mm (b) to 4.2 mm (c) to adjust the scattering direction of the barium upward.

한편, 바륨겟타(4)란 브라운관 내부를 고진공으로 유지하기 위하여 사용되는 것으로 이것은 라디오 프리퀀서(Radio frequency)에 의해 에너지를 받으면 활성화 금속 바륨(Reactive Metal Barium)이 비산되고(Evaporating), 이것이 브라운관 내부의 잔류 가스와 반응하여 흡착물을 만들어 브라운관 내부를 고진공도로 유지하는 것이다.On the other hand, barium getter (4) is used to maintain the inside of the CRT in a high vacuum, which is energized by the radio frequency (Radio frequency) the active metal barium (Reactive Metal Barium) is scattered (Evaporating), which is inside the CRT It reacts with the residual gas of to make adsorbate and keep the inside of CRT at high vacuum.

그러나, 종전의 브라운관에서는 겟타(4)의 외각부(4-1)가 2.4mm(b)로 낮기 때문에 비산된 금속 바륨이 대부분 애노드 보턴(1)과 전자총 사이에 부착되어 도전막을 형성하므로 그 부분에 코팅한 고저항의 내부 도전막(2)의 효과를 무위로 하고 있다(제1도중 점선부분).However, in the conventional CRT, since the outer portion 4-1 of the getter 4 is 2.4 mm (b), the scattered metal barium is mostly attached between the anode button 1 and the electron gun to form a conductive film. The effect of the high-resistance internal conductive film 2 coated on the surface is made intact (dotted line in Fig. 1).

그러므로, 이를 개선키 위해 겟타(4)의 외각부(4-2)를 4.2mm(c)로 하여 도전성 금속 바륨이 애노우드 보턴(1)등 보다 위쪽에 비산되도록 비산 방향을 조정하고 있다. 그러나, 이 또한 겟타(4)의 외각부(4-1)가 높아서 바륨의 비산각도가 좁아져 집중적으로 국부에만 바륨 필름이 형성된다는 것이다(주로 샤도우 마스크 한곳에).Therefore, in order to improve this, the scattering direction is adjusted so that the conductive metal barium is scattered above the anode button 1 or the like with the outer portion 4-2 of the getter 4 set to 4.2 mm (c). However, this also means that the outer portion 4-1 of the getter 4 is high, so that the scattering angle of the barium is narrowed so that the barium film is concentrated only locally (mainly in one shadow mask).

이는 전체적으로 바륨필름의 표면적이 좁아지고, 결과적으로 효과적이지 못하다는 문제점이 대두된다.This is a problem that the overall surface area of the barium film is narrowed, and as a result is not effective.

본 발명은 이러한 점을 개선하고자 발명한 것으로서 이를 상세히 설명하면 다음과 같다.The present invention is invented to improve such a point and described in detail as follows.

즉, 기존의 바륨 겟타(4)의 외각부(4-2) 높이를 2.4mm(b)로 그대로 하고, 기존의 애노드 보턴(1)보다 형광면쪽으로 소정의 거리(a)을 둔 위치에 바륨겟타(4)의 위치를 정하는 방법인 것이다.That is, the barium getter is positioned at a position where the height of the outer portion 4-2 of the conventional barium getter 4 is 2.4 mm (b), and is set at a predetermined distance a toward the fluorescent surface from the conventional anode button 1. (4) is the way to determine the position.

미설명 부호, 4-3은 결속편, 4-4는 고정구, 5는 브라운관이다.Unexplained code, 4-3 is the binding piece, 4-4 is the fixture, 5 is the CRT.

이러한 본 발명은 겟타(4)의 외각부(4-2)높이가 낮으므로 그 내면의 소정의 각도로 폭넓게 바륨이 확산되므로 효과적이고, 상기 겟타(4)의 위치가 애노드 보턴(1)의 위치보다 형광면쪽으로 내면에 위치하므로 애노드 보턴(1) 부위에 바륨이 비산됨을 방지할 수 있다.Since the height of the outer portion 4-2 of the getter 4 is low, the present invention is effective because the barium is widely spread at a predetermined angle of the inner surface, and the position of the getter 4 is the position of the anode button 1. Since it is located on the inner surface toward the fluorescent surface more, it is possible to prevent the barium scattering on the anode button (1).

여기서, 상기 바륨 겟타(4)의 위치는 애노드 보턴(1)보다 3-4cm 형광면쪽으로 상부에 위치시키는 것이 적합하다. 이러한 본 발명은 바륨 겟타(4)에서 바륨을 비산할시 그 위치를 소정의 위치로 하므로 이러한 작용을 최대한 효과적이게 할 수 있는 방법을 제공하는 유익한 특징이 있다.In this case, the barium getter 4 is preferably positioned above the anode surface 1 toward the 3-4 cm fluorescent surface. The present invention has an advantageous feature to provide a method that can be made as effective as possible since the position of the barium in the barium getter 4 to the predetermined position.

Claims (2)

소프트 플래쉬 칼라 브라운관에 있어서 바륨겟타(4)의 외각부(4-2) 높이를 b로 하고, 그 위치는 애노드 보턴(1)보다 형광면쪽으로 소정의 거리인 a에 위치하도록 하는 소프트 플래쉬 칼라 브라운관의 제조방법In the soft flash color CRT, the height of the outer portion 4-2 of the barium getter 4 is set to b, and the position of the soft flash color CRT is located at a predetermined distance a toward the fluorescent surface from the anode button 1. Manufacturing method 제1항에 있어서, 상기 b의 높이는 2.4mm 정도이고 a는 3-4cm 정도로 하는 소프트 플래쉬 칼라 브라운관의 제조방법.The method of claim 1, wherein the height of b is about 2.4 mm and a is about 3-4 cm.
KR1019840003735A 1984-06-29 1984-06-29 Manufacturing method of color receiver Expired KR860000439B1 (en)

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KR1019840003735A KR860000439B1 (en) 1984-06-29 1984-06-29 Manufacturing method of color receiver

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KR1019840003735A KR860000439B1 (en) 1984-06-29 1984-06-29 Manufacturing method of color receiver

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KR860000687A KR860000687A (en) 1986-01-30
KR860000439B1 true KR860000439B1 (en) 1986-04-19

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