KR960042817A - Method for manufacturing electrophotographic screen of cathode ray tube by opaque contact electrode and photoelectric film charging device for same - Google Patents

Method for manufacturing electrophotographic screen of cathode ray tube by opaque contact electrode and photoelectric film charging device for same Download PDF

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Publication number
KR960042817A
KR960042817A KR1019950012957A KR19950012957A KR960042817A KR 960042817 A KR960042817 A KR 960042817A KR 1019950012957 A KR1019950012957 A KR 1019950012957A KR 19950012957 A KR19950012957 A KR 19950012957A KR 960042817 A KR960042817 A KR 960042817A
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South Korea
Prior art keywords
film
panel
charging electrode
photoconductive
conductive film
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KR1019950012957A
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Korean (ko)
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KR100202867B1 (en
Inventor
신동기
이복수
윤상열
최돈빈
이민수
손호석
오명환
김창홍
변종홍
안광덕
박태석
한택상
손용배
유병용
박영호
Original Assignee
엄길용
오리온전기 주식회사
박원훈
한국과학기술연구원
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Priority to KR1019950012957A priority Critical patent/KR100202867B1/en
Publication of KR960042817A publication Critical patent/KR960042817A/en
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Publication of KR100202867B1 publication Critical patent/KR100202867B1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22Applying luminescent coatings
    • H01J9/227Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes

Abstract

균일한 형광체 등의 현상밀도를 얻기 위해 균일하게 광전도막을 대전시킬 뿐만 아니라, 상술한 복잡한 코로나 방전공정과그 장치를 제거하여 음극선관을 제조할 수 있는 음극선관의 전자사진식 스크린 제조방법과 이에 사용되는 광전도막 대전장치를 제공한다. 그 제조방법은 (1) 전도막의 1차막과 절연막의 2차막으로 된 충전전극을 준비하여 그 절연막을 상기 판넬의 광전도막에 접촉시키는 단계; (2) 그 접촉된 상태에서 그 충전전극의 전도막과 판넬의 전도막에 직류전원을 인가하여 충전시키는 단계; (3) 그 직류전원이 인가된 상태에서 판넬의 상부로부터 투명한 면판을 통과하여 광전도막의 전면적에 광선을 조사하므로서 광전도막으로 판넬의 전도막의 충전된 전하를 이동시키는 단계; 그리고 (4) 그 광전도막으로 전하가 이동된 후 전원과 광원을 차단시키고 충전전극을 분리시키는 단계를 포함한다. 또한, 판넬의 광전도막에 전면적에걸쳐 잘 접촉하도록 전도막의 1차막과 절연막의 2차막의 형성된 충전전극판; 그 충전전극판이 고정되는 충전전극판홀더;상기 판넬의 상부로부터 투명한 면판을 통과하여 상기 광전도막에 빛을 가하기 위한 광원; 상기 광전도막과 절연막과의접촉위치와 분리위치사이에서 상기 판넬과 충전전극판의 어느 하나를 이동시키도록 그 판넬홀더와 충전전극판홀더의 어느하나의 이동수단; 그리고 상기 판넬의 전도막과 충전전극판의 전도막에 직류전위를 인가하기 위한 직류전원을 구비하는대전장치가 제공된다. 이에 따라, 방전장치 없이 충전전극에 의하여 균일하게 광전도막을 대전시킬 수 있어 형광체 도포두께 및 크기, 형상 등을 균일하게 할 수 있는 효과가 있다.Method of manufacturing an electrophotographic screen of a cathode ray tube capable of manufacturing a cathode ray tube by not only charging the photoconductive film uniformly to obtain a developing density of a uniform phosphor, but also removing the complicated corona discharge process and the apparatus described above, and Provided is a photoconductor film charging device used. The manufacturing method includes the steps of: (1) preparing a charging electrode comprising a primary film of a conductive film and a secondary film of an insulating film, and contacting the insulating film with the photoconductive film of the panel; (2) applying DC power to the conductive film of the charging electrode and the conductive film of the panel in the contacted state to charge the battery; (3) moving the charged charge of the conductive film of the panel to the photoconductive film while irradiating light rays to the entire surface of the photoconductive film from the top of the panel through the transparent face plate while the DC power is applied; And (4) disconnecting the power source and the light source and separating the charging electrode after the charge is transferred to the photoconductive film. In addition, the charge electrode plate formed of the primary film of the conductive film and the secondary film of the insulating film so as to be in good contact with the entire surface of the photoconductive film of the panel; A charging electrode plate holder to which the charging electrode plate is fixed; a light source for applying light to the photoconductive film through a transparent face plate from an upper portion of the panel; Moving means of any one of the panel holder and the charging electrode plate holder to move one of the panel and the charging electrode plate between a contact position and a separation position between the photoconductive film and the insulating film; In addition, a charging apparatus having a DC power supply for applying a DC potential to the conductive film of the panel and the conductive film of the charging electrode plate is provided. Accordingly, it is possible to uniformly charge the photoconductive film by the charging electrode without a discharge device, thereby making it possible to make the phosphor coating thickness, size, shape, and the like uniform.

Description

불투명접촉전극에 의한 음극선관의 전자사진식 스크린 제조방법과 이를 위한 광전도막 대전장치Method for manufacturing electrophotographic screen of cathode ray tube by opaque contact electrode and photoelectric film charging device for same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 칼라 음극선관의 부분단면한 개략정면도, 제2도(가)는 제1도의 음극선관의 스크린 구성을 나타낸 부분확대 단면도, 제3도(가) 내지 (마)는 방전장치를 이용하여 음극선관의 스크린을 제조하는 건식 전자사진식 스크린제조 공정을 도시한 개략설명도.FIG. 1 is a schematic front view of a partial cross section of a color cathode ray tube, FIG. 2A is a partially enlarged sectional view showing the screen configuration of the cathode ray tube of FIG. 1, and FIGS. 3A to 3E use a discharge device. Schematic diagram showing a dry electrophotographic screen manufacturing process for producing a screen of a cathode ray tube.

Claims (3)

판넬면판의 내면에 전도막과 광전도막을 차례로 형성시키는 공정과, 그 광전도막에 전면적에 걸쳐 균일하게 대전시키는 공정과, 그 대전된 광전도막을, 소정의 배열구조의 대전부분과 비대전부분을 얻기위해 새도우마스크를 통해 노광시키는 공정과, 그 대전부분과 비대전부분중 어느 한 부분에 대전된 미세분말을 부착하여 현상시키는 공정을 포함하는 음극선관의 스크린 제조방법에 있어서; 상기 광전도막의 대전공정이 : (1) 전도막의 1차막과 절연막의 2차막으로 된충전전극을 준비하여 그 절연막을 상기 판넬의 광전도막에 접촉시키는 단계; (2) 그 접촉된 상태에서 그 충전전극의 전도막과 판넬의 전도막에 직류전원을 인가하여 충전시키는 단계; (3) 그 직류전원이 인가된 상태에서 판넬의 상부로부터 투명한 면판을 통과하여 광전도막의 전면적에 광선을 조사하므로서 광전도막으로 판넬의 전도막의 충전된 전하를 이동시키는 단계; 그리고 (4) 그 광전도막으로 전하가 이동된 후 전원과 광원을 차단시키고 충전전극을 분리시키는 단계를 포함하는 것을 특징으로하는 불투명접촉전극에 의한 음극선관의 전자사진식 스크린 제조방법.A step of sequentially forming a conductive film and a photoconductive film on the inner surface of the panel face plate, a step of uniformly charging the photoconductive film over the entire surface, and the charged and non-charged parts of the predetermined arrangement structure A method of manufacturing a screen of a cathode ray tube comprising a step of exposing through a shadow mask to obtain, and a step of attaching and developing a charged fine powder to any of the charged and non-charged portions thereof; The charging process of the photoconductive film includes: (1) preparing a charging electrode comprising a primary film of a conductive film and a secondary film of an insulating film and contacting the insulating film with the photoconductive film of the panel; (2) applying DC power to the conductive film of the charging electrode and the conductive film of the panel in the contacted state to charge the battery; (3) moving the charged charge of the conductive film of the panel to the photoconductive film while irradiating light rays to the entire surface of the photoconductive film from the top of the panel through the transparent face plate while the DC power is applied; And (4) disconnecting the power source and the light source and separating the charging electrode after the charge is transferred to the photoconductor film. 제1항에 있어서, 상기 판넬면판의 내면에 블랙매트릭스, 전도막 및 광전도막이 차례로 형성된 판넬이고 칼라음극선관인 경우, 상기 노광공정이 소정의 형광체자리를 제외하고 2회 새도우마스크를 통해 실시되고, 상기 현상공정에서의 미세분말이 제1, 제2 및 제3 형광체분말의 어느 하나를 포함하며, 그 각 제1, 제2 및 제3 형광체분말에 대해 소망의배열을 이루도록 상기 대전공정, 노광공정 및 현상공정이 반복적으로 실시되고, 그 후 각 형광체들을 고착시키는 고착단계를 포함하는 것을 특징으로 하는 불투명접촉전극에 의한 음극선관의 전자사진식 스크린 제조방법.The method according to claim 1, wherein when the black matrix, the conductive film, and the photoconductive film are sequentially formed on the inner surface of the panel face plate, and the color cathode ray tube is formed, the exposure process is performed through two shadow masks except for a predetermined phosphor site. The fine powder in the developing step includes any one of the first, second and third phosphor powders, and the charging step, the exposure step and the step of forming the desired arrangement for each of the first, second and third phosphor powders. And a developing step is performed repeatedly, and then each of the phosphors is fixed to each other. A method of manufacturing an electrophotographic screen of a cathode ray tube by an opaque contact electrode is provided. 판넬내면에 휘발성 전도막과 그 전도막위에 휘발성 광전도막을 형성하여 스크린을 제조하는 음극선관의 전자사진식 스크린 제조를 위한 광전도막 대전장치에 있어서; 상기 판넬의 광전도막에 전면적에 걸쳐 잘 접촉하도록 전도막의 1차막과 절연막의 2차막이 형성된 충전전극판; 그 충전전극판이 고정되는 충전전극판홀더; 상기 판넬의 상부로부터 투명한 면판을 통과하여 상기 광전도막에 빛을 가하기 위한 광원; 상기 광전도막과 절연막과의 접촉위치와 분리위치사이에서상기 판넬과 충전전극판의 어느 하나를 이동시키도록 그 판넬홀더와 충전전극판홀더의 어느 하나의 이동수단; 그리고 상기 판넬의 전도막과 충전전극판의 전도막에 직류전위를 인가하기 위한 직류전원을 구비하는 것을 특징으로 하는 음극선관의 전자사진식 스크린 제조를 위한 광전도막 대전장치.A photoconductive film charging apparatus for manufacturing an electrophotographic screen of a cathode ray tube for forming a screen by forming a volatile conductive film on a panel and a volatile photoconductive film on the conductive film; A charging electrode plate having a primary film of a conductive film and a secondary film of an insulating film formed so as to be in good contact with the photoconductive film of the panel over the entire surface; A charging electrode plate holder to which the charging electrode plate is fixed; A light source for applying light to the photoconductive film through a transparent face plate from an upper portion of the panel; Moving means of any one of the panel holder and the charging electrode plate holder to move one of the panel and the charging electrode plate between a contact position and a separation position between the photoconductive film and the insulating film; And a direct current power source for applying a direct current potential to the conductive film of the panel and the conductive film of the charging electrode plate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012957A 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt by opaque contact electrode and photoconductive membrane charging device thereof KR100202867B1 (en)

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KR1019950012957A KR100202867B1 (en) 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt by opaque contact electrode and photoconductive membrane charging device thereof

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KR1019950012957A KR100202867B1 (en) 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt by opaque contact electrode and photoconductive membrane charging device thereof

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KR960042817A true KR960042817A (en) 1996-12-21
KR100202867B1 KR100202867B1 (en) 1999-06-15

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