KR950003848Y1 - Cathode-ray tube - Google Patents
Cathode-ray tube Download PDFInfo
- Publication number
- KR950003848Y1 KR950003848Y1 KR2019890021248U KR890021248U KR950003848Y1 KR 950003848 Y1 KR950003848 Y1 KR 950003848Y1 KR 2019890021248 U KR2019890021248 U KR 2019890021248U KR 890021248 U KR890021248 U KR 890021248U KR 950003848 Y1 KR950003848 Y1 KR 950003848Y1
- Authority
- KR
- South Korea
- Prior art keywords
- anode electrode
- ray tube
- electrode
- graphite film
- cathode ray
- 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
- H01J29/08—Electrodes intimately associated with a screen on or from which an image or pattern is formed, picked-up, converted or stored, e.g. backing-plates for storage tubes or collecting secondary electrons
- H01J29/085—Anode plates, e.g. for screens of flat panel displays
-
- 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
내용 없음.No content.
Description
제1도는 종래 음극선관에 있어서, 전자총이 내장된 네크부의 발췌 단면도.1 is an excerpted cross-sectional view of a neck portion having a built-in electron gun in a conventional cathode ray tube.
제2도는 본 고안에 음극선관에 있어서, 전자총이 내장된 네크부의 발췌단면도.2 is an excerpted cross-sectional view of the neck portion in which the electron gun is incorporated in the cathode ray tube according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 펀넬 11 : 흑연 내장막10: funnel 11: graphite internal film
12 : 네크 20 : 전자총12: neck 20: electron gun
21 : 포커스전극 22 : 애노드전극21: focus electrode 22: anode electrode
본 고안은 음극선관에 관한 것으로서, 특히 전자총의 포커스 전극과 애노드전극 및 내장 흑연막 사이의 내전압 특성을 개선하여 된 음극선관에 관한 것이다.The present invention relates to a cathode ray tube, and more particularly, to a cathode ray tube obtained by improving a breakdown voltage characteristic between a focus electrode, an anode electrode and an embedded graphite film of an electron gun.
음극선관의 네크(12)에는 제1도에 도시된 바와 같이 다수의 전극들로 구성된 전자총(20)이 내장되는 바, 이는 펀넬(10)의 내벽에 도장된 내장흑연막(11)에 전기적으로 접속된 최고전위에 애노드전극(22)과 실드컵(23) 및, 이보다 낮은 전위의 포커스전극(21)을 갖춘다. 이러한 음극선관에 있어서 흔히 야기되는 불량화 요인 중의 하나는 상기 애노드전극과 포커스전극 및 내장 흑연막사이에 야기되는 아아크 현상으로서 이에 의하면 네크의 내벽에 균열(龜裂)이 발생되게 되거나 메인 렌즈를 형성하는 전계가 흐트러지게 되어 정상적인 화상을 실현할수 없게 된다. 이러한 아아크 현상은 애노드전극과 포커스전극 및 내장 흑연막사이에 높은 전위차(電位差)가 유지되기 때문인 것으로서 애노드전극과 포커스전극, 포커스 전극과 내장 흑연막사이의 간격은 상기한 관점에서 볼때에 매우 중요한 요소이다.The neck 12 of the cathode ray tube includes an electron gun 20 composed of a plurality of electrodes, as shown in FIG. 1, which is electrically connected to the embedded graphite film 11 coated on the inner wall of the funnel 10. An anode electrode 22, a shield cup 23, and a focus electrode 21 having a lower potential are provided at the highest potential connected. One of the deterioration factors in the cathode ray tube is arcing caused between the anode electrode, the focus electrode and the embedded graphite film, which causes cracks on the inner wall of the neck or forms the main lens. The electric field is disturbed and a normal image cannot be realized. This arcing phenomenon is because a high potential difference is maintained between the anode electrode, the focus electrode, and the embedded graphite film, and the gap between the anode electrode, the focus electrode, the focus electrode, and the embedded graphite film is a very important factor in view of the above. to be.
본 고안은 상기한 문제점을 개선하기 위한 것으로서, 전자총의 포커스 전극과 애노드전극 및 내장 흑연막 사이의 내전압 특성이 향상된 음극선관을 제공함에 그 목적이 있다.The present invention has been made to improve the above problems, and an object thereof is to provide a cathode ray tube having improved withstand voltage characteristics between a focus electrode, an anode electrode and an embedded graphite film of an electron gun.
상기한 목적을 달성하기 위하여 본 고안은, 펀넬의 내면에는 네크부에 까지 연장되는 내장 흑연막이 도포되고, 네크부에서는 애노드전극과 포커스전극을 갖춘 전자총이 내장되는 음극선관에 있어서, 상기한 네크부에 연장 도포된 흑연막과 애노드전극과의 간격이 상기 애노드전극과 포커스 전극과의 간격보다 최소한 같거나 크게 되도록 구성한 점에 그 특징이 있다.In order to achieve the above object, the present invention, the inner surface of the funnel is coated with a built-in graphite film extending to the neck portion, the neck portion in the cathode ray tube in which an electron gun with an anode electrode and a focus electrode is embedded The characteristic feature of the present invention is that the distance between the graphite film and the anode electrode, which is extended on the surface, is formed to be at least equal to or larger than the distance between the anode electrode and the focus electrode.
이하 첨부된 도면에 예시된 도면을 참조하면서 본 고안의 실시예를 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the drawings illustrated in the accompanying drawings.
제2도에 본 고안의 한 실시예가 도시되어 있는 바, 종래의 음극선관과 마찬가지로 음극선관(10)의 네크부(12)에는 다수의 전극들로 구성된 전자총(20)이 내장되는 바, 이는 판넬(10)의 내벽에 도장된 내장흑연막(11)에 전기적으로 접속된 최고전위의 애노드전극(22)와 실드컵(23)과, 이보다 낮은 전위의 포커스전극(21)을 갖춘다. 이때에 상기한 네크부(12)에 연장 도포된 흑연막(11)과 애노드전극(22)과의 간격(H)이, 상기 애노드전극(22)과 포커스 전극(21)과의 간격(H)이, 상기 애노드전극(22)과 포커스 전극(21)과의 간격(I)보다 최소한 같거나 크다. 이때에, 내전압이 특성에 준한 기준설계치는 상기한 애노드전극(22)과 포커스 전극(21)과의 간격(I)으로서 애노드전극(22)과 포커스 전극(21)사이의 전위차를 감안하여 아아크가 발생되지 않는 최소의 조건으로 간격을 설정한다.2 shows an embodiment of the present invention, like the conventional cathode ray tube, the neck portion 12 of the cathode ray tube 10 includes an electron gun 20 composed of a plurality of electrodes, which is a panel The anode electrode 22 and shield cup 23 of the highest potential electrically connected to the built-in graphite film 11 coated on the inner wall of (10) are provided, and the focus electrode 21 of lower potential is provided. At this time, the interval H between the graphite film 11 and the anode electrode 22 extended to the neck portion 12 is the interval H between the anode electrode 22 and the focus electrode 21. It is at least equal to or larger than the distance I between the anode electrode 22 and the focus electrode 21. At this time, the reference design value based on the characteristic of the withstand voltage is regarded as a gap I between the anode electrode 22 and the focus electrode 21 in consideration of the potential difference between the anode electrode 22 and the focus electrode 21. Set the interval to the minimum condition that does not occur.
이상과 같은 본 고안은 상기한 네크부(12)에 연장도포된 흑연막(11)과 애노드전극(22)과의 간격(H)이, 상기 애노드전극(22)과 포커스 전극(21)과의 간격(I)보다 최소한 같거나 크게 하여서 내크벽면을 통한 전하의 유입이 억제될 수 있도록 된 것으로서, 전자총의 설계상 설계변수로 쉽게 얻을 수 있는 상기 애노드전극과 포커스전극과의 간격을 기준으로 하여 상기 흑연막(11)과 애노드전극(22)과의 간격(H)을 정하도록 된 것인바, 효과적인 아아크 방지와 전류의 유입의 방지가 가능한 특징을 가진다.According to the present invention as described above, the distance H between the graphite film 11 and the anode electrode 22 extended and coated on the neck portion 12 is equal to that between the anode electrode 22 and the focus electrode 21. At least equal to or greater than the distance I so that the inflow of charge through the nac wall surface can be suppressed, based on the distance between the anode electrode and the focus electrode, which can be easily obtained as a design variable of the electron gun. The distance (H) between the graphite film 11 and the anode electrode 22 is to be determined, and has an advantage of effective arc prevention and prevention of inflow of current.
이상에서와 같이 본 고안의 음극선관은 내전압 특성이 효과적으로 유지될 수 있도록 구성되어 있는바, 아아크 현상이나, 전류유입에 의한 불량화가 크게 억제된 것이다.As described above, the cathode ray tube of the present invention is configured to effectively maintain the withstand voltage characteristic, and the deterioration caused by the arcing phenomenon or the current inflow is greatly suppressed.
따라서 양품의 수득율이 크게 개선됨으로써 생산성이 향상되게 된다.Therefore, the yield is greatly improved, thereby improving productivity.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890021248U KR950003848Y1 (en) | 1989-12-31 | 1989-12-31 | Cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890021248U KR950003848Y1 (en) | 1989-12-31 | 1989-12-31 | Cathode-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910013009U KR910013009U (en) | 1991-07-30 |
| KR950003848Y1 true KR950003848Y1 (en) | 1995-05-16 |
Family
ID=19294972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890021248U KR950003848Y1 (en) | 1989-12-31 | 1989-12-31 | Cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950003848Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150129192A (en) * | 2014-05-08 | 2015-11-19 | 공주대학교 산학협력단 | Method of improving performance of the cable fixing apparatus and a cable fixing apparatus using the same method |
-
1989
- 1989-12-31 KR KR2019890021248U patent/KR950003848Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150129192A (en) * | 2014-05-08 | 2015-11-19 | 공주대학교 산학협력단 | Method of improving performance of the cable fixing apparatus and a cable fixing apparatus using the same method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR910013009U (en) | 1991-07-30 |
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