KR960042818A - Method for Manufacturing Electrophotographic Screen of Cathode Ray Tube by Shadow Mask Electrode - Google Patents

Method for Manufacturing Electrophotographic Screen of Cathode Ray Tube by Shadow Mask Electrode Download PDF

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Publication number
KR960042818A
KR960042818A KR1019950012959A KR19950012959A KR960042818A KR 960042818 A KR960042818 A KR 960042818A KR 1019950012959 A KR1019950012959 A KR 1019950012959A KR 19950012959 A KR19950012959 A KR 19950012959A KR 960042818 A KR960042818 A KR 960042818A
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KR
South Korea
Prior art keywords
shadow mask
charging
ray tube
cathode ray
charge
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KR1019950012959A
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Korean (ko)
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KR100202868B1 (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 KR1019950012959A priority Critical patent/KR100202868B1/en
Publication of KR960042818A publication Critical patent/KR960042818A/en
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Publication of KR100202868B1 publication Critical patent/KR100202868B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus 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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus 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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2278—Application of light absorbing material, e.g. between the luminescent areas

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

새도우마스크를 충전전극으로 사용하여 단순화된 공정으로도 균일하게 광전도막에 전하잠상을 형성하여 음극선관을 제조할 수 있는 새도우마스크전극에 의한 음극선관의 전자사진식 스크린 제조방법을 제공한다.The present invention provides a method for producing an electrophotographic screen of a cathode ray tube using a shadow mask electrode capable of forming a cathode ray tube by uniformly forming a charge latent image on a photoconductive film using a shadow mask as a charging electrode.

판넬내면에 형광면을 형성시키기 위한 전자사진식 음극선관의 스크린제조방법에 있어서; (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차코팅 단계; (2) 그 전도막위에 휘발성광전도막을 형성하는 2차코팅단계; (3) 상기 판넬에 새도우마스크를 그 판넬과 절연되게 장칙하고 고압의 직류전원을 상기 전도막과 새도우마스크에 인가하여 충전하면서 그 새도우마스크를 통해 광선을 소정의 입사각으로 광전도막에 조사(노광)하여 소정의 배열구조만 전도막에 충전된 전하를 선택적으로광전도막에 이동시킨 후, 그 전원과 빛을 차단하고 전도막의 전하를 방출시켜 광전도막에 소정의 전하잠상을 형성하는 대전 및 노광 단계; 그리고 (4) 소망의 전하로 대전된 미세분말을 상기 대전 및 노광단계(3)에서 전하가 선택적으로 이동된광전도막의 노광부분과 그 나머지 광전도막의 비노광부분중 어느 하나의 영역에 그 대전된 미세분말을 접촉, 부착시켜 그미세분말의 실상을 만드는 현상단계를 포함한다. 이에 따라, 방전장치가 필요없게 되고 복잡한 방전조건을 조절할 필요없이 충전과 노광을 동시에 균일하게 할 수 있으므로 형광체 도포두께 및 크기, 형상 등을 균일하게 할 수 있고 음극선관의화질을 높일 수 있는 효과가 있을 뿐만 아니라, 제조설비 및 제조공정이 크게 감축되고 생산성이 크게 향상되는 등의 효과가 있다.A screen manufacturing method of an electrophotographic cathode ray tube for forming a fluorescent surface on an inner surface of a panel; (1) forming a volatile conductive film on the inner surface of the panel; (2) a secondary coating step of forming a volatile photoconductive film on the conductive film; (3) A shadow mask is attached to the panel so as to be insulated from the panel, and a high-voltage direct current power is applied to the conductive film and the shadow mask while charging the light to the photoconductive film at a predetermined incident angle through the shadow mask (exposure). A charge and exposure step of selectively transferring charges charged in the conductive film only to the photoconductive film, and then blocking the power supply and light and releasing the charge of the conductive film to form a predetermined charge latent image on the photoconductive film; And (4) charging the fine powder charged with the desired charge to any one of the exposed portion of the photoconductive film to which the charge is selectively transferred in the charging and exposing step (3) and the non-exposed portion of the remaining photoconductive film. And a developing step of contacting and attaching the fine powder to form an actual image of the fine powder. This eliminates the need for a discharging device and enables uniform charging and exposure simultaneously without the need for adjusting complicated discharge conditions, resulting in a uniform coating thickness, size, shape, and the like, and enhancing the quality of the cathode ray tube. In addition, the manufacturing facilities and manufacturing process is greatly reduced and productivity is greatly improved.

Description

새도우마스크전극에 의한 음극선관의 전자사진식 스크린 제조방법Method for Manufacturing Electrophotographic Screen of Cathode Ray Tube by Shadow Mask Electrode

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

제6도(가) 내지 (라)는 본 발명에 따른 스크린제조방법을 설명하기 위한 판넬면판의 부분단면도.6 (a) to (d) is a partial cross-sectional view of a panel face plate for explaining the screen manufacturing method according to the present invention.

Claims (5)

판넬내면에 형광면을 형성시키기 위한 전자사진식 음극선관의 스크린제조방법에 있어서; (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차코팅 단계; (2) 그 전도막위에 휘발성광전도막을 형성시키는 2차코팅 단계; (3) 상기판넬에 새도우마스크를 그 판넬과 절연되게 장칙하고 고압의 직류전원을 상기 전도막과 새도우마스크에 인가하여 충전하면서 그 새도우마스크를 통해 광선을 소정의 입사각으로 광전도막에 조사(노광)하여 소정의 배열구조만 전도막에 충전된전하를 선택적으로 광전도막에 이동시킨 후, 그 전원과 빛을 차단하고 전도막의 전하를 방출시켜 광전도막에 소정의 전하잠상을 형성하는 대전 및 노광 단계; 그리고 (4) 소망의 전하로 대전된 미세분말을 상기 대전 및 노광단계(3)에서 전하가선택적으로 이동된 광전도막의 노광부분과 그 나머지 광전도막의 비노광부분중 어느 하나의 영역에 그 대전된 미세분말을접촉, 부착시켜 그 미세분말의 실상을 만드는 현상단계를 포함하는 것을 특징으로 하는 새도우마스크전극에 의한 음극선관의 전자사진식 스크린 제조방법.A screen manufacturing method of an electrophotographic cathode ray tube for forming a fluorescent surface on an inner surface of a panel; (1) forming a volatile conductive film on the inner surface of the panel; (2) a secondary coating step of forming a volatile photoconductive film on the conductive film; (3) The shadow mask is installed on the panel to be insulated from the panel, and the high-voltage direct current power is applied to the conductive film and the shadow mask while charging the light beam through the shadow mask at a predetermined angle of incidence (exposure). A charge and exposure step of selectively transferring charges charged in the conductive film only to the photoconductive film, and then blocking the power supply and light and releasing the charges of the conductive film to form a predetermined latent charge image on the photoconductive film; And (4) charging the fine powder charged with the desired charge to any one of the exposed portion of the photoconductive film to which the charge is selectively transferred in the charging and exposing step (3) and the non-exposed portion of the remaining photoconductive film. Method for producing an electrophotographic screen of a cathode ray tube by a shadow mask electrode, characterized in that it comprises a developing step of contacting and attaching the fine powder to make a real image of the fine powder. 제1항에 있어서, 상기 판넬은 그 내면에 블랙 매트릭스가 형성되어 있는 것을 특징으로 하는 음극선관의 전자사진식 스크린제조방법.The method of claim 1, wherein the panel has a black matrix formed on an inner surface thereof. 제1항에 있어서; 상기 현상단계(5)에서의 미세분말이 제1, 제2 및 제3 형광체분말의 어느 하나를 포함하며, 그 각 제1, 제2 및 제3 형광체분말에 대해 소망의 배열을 이루도록 상기 대전 및 노광단계(3) 및 현상단계(4)가 반복적으로 실시되고, 그 후 각 형광체들을 고착시키는 고착단계(5)를 포함하는 것을 특징으로 하는 새도우마스크전극에 의한음극선관의 전자사진식 스크린 제조방법.The method of claim 1; The fine powder in the developing step (5) comprises any one of the first, second and third phosphor powders, the charge and the like so as to form a desired arrangement for each of the first, second and third phosphor powders. An exposure step (3) and a development step (4) are repeatedly carried out, and then a fixing step (5) for fixing the respective phosphors, the method of manufacturing an electrophotographic screen of a cathode ray tube by a shadow mask electrode . 제3항에 있어서, 상기 고착단계(5)후와 상기 형광체분말을 위한 대전 및 노광단계(3)전의 어느 하나에 제1, 제2 및 제3 형광체의 배열을 분리시키는 블랙매트릭스 패턴을 형성하도록 빛흡수물질분말에 대해 상기 대전 및 노광단계(3), 현상단계(4) 및 고착단계(5)가 실시되는 것을 특징으로 하는 새도우마스크전극에 의한 음극선관의 전자사진식 스크린 제조방법.4. A method according to claim 3, wherein a black matrix pattern is formed which separates the arrangement of the first, second and third phosphors after the fixing step (5) and before the charging and exposing step (3) for the phosphor powder. Method for producing an electrophotographic screen of a cathode ray tube by a shadow mask electrode, characterized in that the charging and exposing step (3), the developing step (4) and the fixing step (5) is performed on the light absorbing material powder. 제1항 내지 제4항의 어느 한 항에 있어서, 상기 대전 및 노광단계(3)의 고압전원이 2∼10KV인 것을 특징으로 하는 새도우마스크전극에 의한 음극선관의 전자사진식 스크린 제조방법.The method of manufacturing an electrophotographic screen of a cathode ray tube according to any one of claims 1 to 4, wherein the high-voltage power supply of the charging and exposing step (3) is 2 to 10 KV. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012959A 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt by shadow mask electrode KR100202868B1 (en)

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KR1019950012959A KR100202868B1 (en) 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt by shadow mask electrode

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KR1019950012959A KR100202868B1 (en) 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt by shadow mask electrode

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KR960042818A true KR960042818A (en) 1996-12-21
KR100202868B1 KR100202868B1 (en) 1999-06-15

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