KR960005846Y1 - In-line type electron gun - Google Patents
In-line type electron gun Download PDFInfo
- Publication number
- KR960005846Y1 KR960005846Y1 KR2019900015270U KR900015270U KR960005846Y1 KR 960005846 Y1 KR960005846 Y1 KR 960005846Y1 KR 2019900015270 U KR2019900015270 U KR 2019900015270U KR 900015270 U KR900015270 U KR 900015270U KR 960005846 Y1 KR960005846 Y1 KR 960005846Y1
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- KR
- South Korea
- Prior art keywords
- electrode
- electron gun
- lead wire
- bead glass
- conductive lead
- Prior art date
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Classifications
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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
- H01J29/92—Means forming part of the tube for the purpose of providing electrical connection to it
-
- 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
- H01J29/48—Electron guns
- H01J29/485—Construction of the gun or of parts thereof
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- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
내용없음No content
Description
제1도의 (a)는 종래고안의 구성을 나타내는 측면도(A) of FIG. 1 is a side view showing the structure of a conventional design
(b)는 종래고안의 구성을 나타내는 정면도(b) is a front view showing the structure of a conventional design
제2도는 방전의 경로를 나타내는 단면도2 is a cross-sectional view showing a path of discharge
제3도의 (a)는 본고안의 구성을 나타내는 측면도(A) of FIG. 3 is a side view which shows the structure of this proposal
(b)는 본고안의 구성을 나타내는 정면도(b) is a front view showing the structure of the present proposal
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 음극 4,G2 : 전극2: cathode 4, G2: electrode
5 : 도전성리드선 6,G3 : 전극5: conductive lead wire 6, G3: electrode
7 : 비드그라스 8,G4 : 전극7: Bead glass 8, G4: electrode
10 : 네크부 11 : 도전성피막10 neck portion 11: conductive film
본 고안은 음극선관에 사용되는 인라인 전자총에 관련된 것으로서, 특히 열전자의 방출시 전자총 내부에서 발생되는 방전현상을 감소시킨 인라인형 전자총에 관한 것이다.The present invention relates to an inline electron gun used in a cathode ray tube, and more particularly, to an inline electron gun which reduces discharge phenomena generated inside an electron gun when hot electrons are emitted.
종래의 인라인형 전자총은 제1도에 도시된 바와 같이, 3개의 음극(2)을 인라인 형태로 배열하되 제어전극인 Gl전극 (3)과 가속전극인 G2전극(4)및 주렌즈형성전극인 G3전극(6) G4전극(8)등의 전극등을 절연체인 비드그라스(BEAD GLASS, 7)에 소정간격을 유지한 상태로 융착고정하였다.Conventional in-line type electron gun is formed with, but an array of three cathode (2) in in-line form of the control electrode, G l electrode 3 and the acceleration electrode, G 2 electrode 4 and the main lens, as shown in FIG. 1 fused and fixed while maintaining a predetermined distance to the electrode of the electrode G 3 (6) G 4 electrode 8 of the insulation glass beads (gLASS bEAD, 7) an electrode, etc. and the like.
따라서 히터(1)에 의해 음극(2)이 가열되면 각각의 음극(2)에서 열전자가 방출되고, 제어전극인 Gl전극(3)에서 상기 열전자를 제어하여 가속전극인 G2전극(4)에서 가속시켜 주렌즈 형성전극인 G3전극(6)으로 입사한다.Accordingly, when the cathode 2 is heated by the heater 1, hot electrons are emitted from each cathode 2, and the hot electrons are controlled by the G 1 electrode 3, which is a control electrode, to thereby accelerate the G 2 electrode 4. Is accelerated into the G 3 electrode 6 which is the main lens forming electrode.
이어서 G3전극(6)과 G4전극(8) 사이에 형성된 주렌즈부를 통과한 열전자가 실드컵(SHIELD CUP, 9)부를 통과하여 도면에 미도시된 음극선관의 형광면을 발광시키게 된다.Subsequently, hot electrons passing through the main lens portion formed between the G 3 electrode 6 and the G 4 electrode 8 pass through the shield cup portion 9 to emit the fluorescent surface of the cathode ray tube not shown in the drawing.
그러나 이와같은 인라인형 전자총에는 음극(2)에서 발생된 열전자가 형광면의 한점에 정확히 도달하기 위하여 주렌즈부를 통과해야하고, 이를 위하여 G3전극(6)과 G4전극(8)에는 각기 다른 전압이 인가되었다.However, in this in-line electron gun, hot electrons generated at the cathode 2 must pass through the main lens to reach exactly one point of the fluorescent surface. For this purpose, different voltages are applied to the G 3 electrode 6 and the G 4 electrode 8. Was authorized.
즉, G4전극(8)에는 도전피막(11)에 의해 약20∼26KV의 고압이 인가되어, G3전극(6)에는 리드선(5)에 의해 약4.5∼6.5KV 정도의 중간전압이 인가되므로써 G3, 전극(6)과 G4전극(8)사이에는 현저한 전압차가 발생하여, 비드그라스(7)와 네크부(10)사이에서는 방전현상이 발생하였다.That is, a high voltage of about 20 to 26 KV is applied to the G 4 electrode 8 by the conductive film 11, and an intermediate voltage of about 4.5 to 6.5 KV is applied to the G 3 electrode 6 by the lead wire 5. As a result, a remarkable voltage difference occurred between the G 3 , the electrode 6, and the G 4 electrode 8, and a discharge phenomenon occurred between the bead glass 7 and the neck portion 10.
종래의 인라인형 전자총은 상기와 같은 방전현상에 의해 음극(2)에서 발생된 열전자가 형광면의 일정위치에 정확하게 도달하지 못하게 되는 문제점이 있었고, 특히 STC DRIFT 또는 컨버전스(CONVERGENCE)등의 특성이 나빠지며, 음극선관의 불량률이 높아지는 문제점이 있었다.The conventional inline electron gun has a problem that the hot electrons generated at the cathode 2 do not accurately reach a certain position of the fluorescent surface due to the above discharge phenomenon, in particular, characteristics such as STC DRIFT or convergence are deteriorated. There was a problem that the failure rate of the cathode ray tube is increased.
따라서 본고안은 전자총내부에서 전압차에 의하여 발생하는 방전현상을 감소시키는 수단을 제공함에 그 목적이 있다.Therefore, the purpose of the present invention is to provide a means for reducing the discharge phenomenon caused by the voltage difference inside the electron gun.
본고안은 이를 위하여 도전성 리드선의 일부를 비드그라스에 접촉시키고, 이와동시에 도전성 리드선의 중간부위중 일부를 네크벽과 비드그라스사이에도 위치하도록 하여 내전압 특성을 향상시키도록 한 것으로서 이를 첨부한 도면에 도시된 본고안의 실시예에 따라 상술하면 다음과 같다.For this purpose, a part of the conductive lead wire is brought into contact with the bead glass, and at the same time, a part of the middle portion of the conductive lead wire is also located between the neck wall and the bead glass to improve the breakdown voltage characteristics. When described in detail according to the embodiment of the present invention as follows.
종래와 같이 네크부(10)의 내부는 진공상태를 유지시키고, 저압측인 G3전극(6)은 고압측인 G4전극(8)과 서로 마주보도록 설치한다.As in the prior art, the inside of the neck portion 10 maintains a vacuum state, and the G 3 electrode 6 on the low pressure side is installed to face each other with the G 4 electrode 8 on the high pressure side.
그리고, 포커스인가 전압인 G3전극(6)측에 전압을 인가해주는 도전성 리드선(5)을 방전경로의 분기점이고 저전압 인가부위인 G2전극(4)의 소정지점에서 비드그라스(7)에 접촉시킨다.Then, the conductive lead wire 5 for applying a voltage to the G 3 electrode 6 which is the focus applied voltage is in contact with the bead glass 7 at a predetermined point of the G 2 electrode 4 which is a branching point of the discharge path and the low voltage application part. Let's do it.
이와동시에 도전성 리드선(5)의 중간부분중 소정부위가 네크부(10)의 내벽과 비드그라스(7) 사이에 위치하도록 하거나, 네크부(10)의 내벽과 비드그라스(7)의 사이에서 네크부(10)의 내벽에 밀착되도록 한다.At the same time, a predetermined portion of the middle portion of the conductive lead wire 5 is located between the inner wall of the neck portion 10 and the bead glass 7 or between the inner wall of the neck portion 10 and the bead glass 7. To be in close contact with the inner wall of the portion (10).
따라서 G4전극(8)에 도전피막(11)에 의해 약20∼26KV의 고압이 인가되고, G2전극(6)에 도전성 리드선(5)에 의해 약 4.5∼6.5KV가 인가되면 전압차에 의해 발생된 불필요한 전자가 비드그라스의 외측을 따라 저전압인가 부위인 G2전극(4) 근방에서 음극쪽으로 진행하면서 방전을 일으키게 되나 이러한 방전은 방전 경로의 분기점인 저전압인가 부위의 비드그라스부위에 접촉된 도전성 리드선(5)에 의해 전극에 미치는 영향이 상쇄되며, 불필요한 전자가 음극(2)이 설치된 쪽으로 이동하여 전자빔의 컨버전 스 특성을 다른 특성상에 미치는 나쁜 영향이 방지된다.Therefore, when a high voltage of about 20 to 26 KV is applied to the G 4 electrode 8 by the conductive film 11, and about 4.5 to 6.5 KV is applied to the G 2 electrode 6 by the conductive lead wire 5, the voltage difference is reduced. Unnecessary electrons generated by the discharge proceed toward the cathode in the vicinity of the low voltage application portion G 2 electrode 4 along the outside of the bead glass, but the discharge is generated in contact with the bead glass portion of the low voltage application portion, which is a branch point of the discharge path. The influence on the electrode is canceled by the conductive lead wires 5, and unnecessary electrons are moved to the side where the cathode 2 is provided, thereby preventing the adverse effect of changing the convergence characteristics of the electron beam on other characteristics.
또한 현저한 전압차에 의해 네크부(10) 내부에 존재하는 이물질등에 의해 발생되는 방전은 상기 비드그라스부위에 접촉된 도전성 리드선(5)에 의해 감소된다.In addition, the discharge generated by the foreign matter and the like present in the neck portion 10 due to the remarkable voltage difference is reduced by the conductive lead wire 5 in contact with the bead glass portion.
뿐만아니라, 네크부(10)와 비드그라스(7) 사이에서 발생되는 방전부 네크부(10)와 비드그라스(7) 사이에 위치하는 도전성 리드선(5)에 의해 감소된다.In addition, it is reduced by the conductive lead wire 5 located between the discharge portion neck portion 10 and the bead glass 7 generated between the neck portion 10 and the bead glass 7.
이와같은 본고안은 방전발생경로에 도전성 리드선(5)을 설치하므로써 방전현상이 전극부위(4, 6, 8)에 미치기 전에 불필요한 전자를 흡수하게되어 내전압 특성을 향상시키게 되고, 이로인해 STC DRIFT 또는 컨버전스등의 전기적 특성을 향상시키며 불량율을 감소시키는 작용효과가 있다.In this paper, the conductive lead wire 5 is provided in the discharge generation path to absorb unnecessary electrons before the discharge phenomenon reaches the electrode portions 4, 6, and 8, thereby improving the withstand voltage characteristics. It has the effect of improving the electrical characteristics such as convergence and reducing the defective rate.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900015270U KR960005846Y1 (en) | 1990-09-29 | 1990-09-29 | In-line type electron gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900015270U KR960005846Y1 (en) | 1990-09-29 | 1990-09-29 | In-line type electron gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920007001U KR920007001U (en) | 1992-04-22 |
| KR960005846Y1 true KR960005846Y1 (en) | 1996-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900015270U KR960005846Y1 (en) | 1990-09-29 | 1990-09-29 | In-line type electron gun |
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| Country | Link |
|---|---|
| KR (1) | KR960005846Y1 (en) |
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1990
- 1990-09-29 KR KR2019900015270U patent/KR960005846Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR920007001U (en) | 1992-04-22 |
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