KR960042827A - Method for manufacturing electrophotographic screen of cathode ray tube - Google Patents

Method for manufacturing electrophotographic screen of cathode ray tube Download PDF

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KR960042827A
KR960042827A KR1019950012958A KR19950012958A KR960042827A KR 960042827 A KR960042827 A KR 960042827A KR 1019950012958 A KR1019950012958 A KR 1019950012958A KR 19950012958 A KR19950012958 A KR 19950012958A KR 960042827 A KR960042827 A KR 960042827A
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South Korea
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film
photoconductive film
forming
charging
photoconductive
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KR1019950012958A
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Korean (ko)
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KR100202866B1 (en
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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 KR1019950012958A priority Critical patent/KR100202866B1/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

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

Abstract

형광막을 균일하게 형성하기 위해 광전도막에 균일하게 대전하여 스크린을 제조하는 방법이 제공된다. (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차코팅 단계; (2)그 전도막위에 전기적 절연을 위한 절연막을 형성시키는 2차코팅 단계;(3) 그 절연막위에 제1파장역의 광선에 감응하는 물질을 함유하는 휘발성의 제1광전도막을 형성시키는 3차코팅단계; (4)그 제1광전도막위에 제2파장역의 광선에 감응하는 물질을 함유하는 휘발성의 제2광전도막을 형성시키는 4차코팅 단계;(5) 그 제2광전도막에 -직류전극을 인가하고 상기 전도막에 +직류전극을 인가하면서 그 제2광전도막에 제2파장역의 광선을 전면에 걸쳐 노광하므로서 균일한 정전하를 그 제2광전도막에 대전시키는 대전단계; (6) 그 제2광전도막의 정전하를선택적으로 제1광전도막에 이동시키도록 제1파장역의 광선으로 새도우마스크를 통과시켜 노광하는 노광단계; 그리고 (7)상기 노광단계(6)에서 정전하가 선택적으로 이동된 제1광전도막의 노광부분과 그 나머지 비노광부분중 어느 하나의 영역에 대전된 미세분말을 부착시키는 현상단계를 포함한다. 이에 따라, 코로나방전장치와 같은 방전장치가 필요없을 뿐만 아니라 복잡한 방전조건을 조절할 필요없이 대전을 균일하게 할 수 있고, 공정도 단순화되며, 형광체 도포두께 및 크기, 형상등을 균일하게 할 수 있는 효과가 있다.In order to uniformly form the fluorescent film, a method of manufacturing a screen by uniformly charging the photoconductive film is provided. (1) forming a volatile conductive film on the inner surface of the panel; (2) a secondary coating step of forming an insulating film for electrical insulation on the conductive film; (3) a third order of forming a volatile first photoconductive film containing a material sensitive to light rays of a first wavelength region on the insulating film; Coating step; (4) a fourth coating step of forming a volatile second photoconductive film containing a material sensitive to light of a second wavelength region on the first photoconductive film; (5) applying a -DC electrode to the second photoconductive film; A charging step of charging the second photoconductive film with a uniform electrostatic charge while exposing the second photoconductive film to the second photoconductive film over the entire surface while applying a + direct current electrode to the conductive film; (6) an exposure step of exposing through a shadow mask with light beams of a first wavelength region to selectively move the electrostatic charge of the second photoconductive film to the first photoconductive film; And (7) a developing step of attaching the charged fine powder to any one of an exposed portion of the first photoconductive film to which the electrostatic charge is selectively moved in the exposure step 6 and the remaining non-exposed portion. As a result, not only a discharge device such as a corona discharge device is required, but the charging can be made uniform without the need for adjusting complicated discharge conditions, the process can be simplified, and the coating thickness, size, shape, etc. of the phosphor can be made uniform. There is.

Description

음극선관의 전자사진식 스크린 제조방법Method for manufacturing electrophotographic screen of cathode ray tube

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

제6도(가) 내지 (바)는 본 발명에 따른 스크린제조방법의 주요공정을 설명하기 위한 판넬면판의 부분단면도.Figure 6 (a) to (bar) is a partial cross-sectional view of the panel face plate for explaining the main process of the screen manufacturing method according to the present invention.

Claims (6)

판넬내면에 형광면을 형성시키기 위한 전자사진식 음극선관의 스크린제조방법에 있어서; (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차코팅 단계; (2) 그 전도막위에 전기적 절연을 위한 절연막을 형성시키는 2차코팅 단계; (3) 그 절연막위에 제1파장역의 광선에 감응하는 물질을 함유하는 휘발성의 제1광전도막을 형성시키는 3차코팅 단계;(4) 그 제1광전도막위에 제2파장역의 광선에 감응하는 물질을 함유하는 휘발성의 제2광전도막을 형성시키는 4차코팅 단계; (5) 그 제 2광전도막에 -직류전극을 인가하고 상기 전도막에 +직류전극을 인가하면서 그 제2광전도막에 제2파장역의 광선을 전면에 걸쳐 노광하므로서 균일한 정전하를 그 제2광전도막에 대전시키는 대전단계; (6) 그 제2광전도막의 정전하를선택적으로 제1광전도막에 이동시키도록 제1파장역의 광선으로 새도우마스크를 통과시켜 노광하는 노광단계; 그리고 (7)상기 노광단계(6)에서 정전하가 선택적으로 이동된 제1광전도막의 노광부분과 그 나머지 비노광부분중 어느 하나의 영역에 대전된 미세분말을 부착시키는 현상단계를 포함하는 것을 특징으로 하는 음극선관의 전자사진식 스크린제조방법.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 an insulating film for electrical insulation on the conductive film; (3) a tertiary coating step of forming a volatile first photoconductive film containing a material sensitive to light in a first wavelength region on the insulating film; (4) sensitive to light in a second wavelength region on the first photoconductive film; Forming a volatile second photoconductive film containing a material to form a fourth coating step; (5) Applying a -DC electrode to the second photoconductive film and applying a + DC electrode to the conductive film while exposing the second wavelength region of light to the second photoconductive film over the entire surface to provide a uniform electrostatic charge. A charging step of charging the two photoconductive films; (6) an exposure step of exposing through a shadow mask with light beams of a first wavelength region to selectively move the electrostatic charge of the second photoconductive film to the first photoconductive film; And (7) a developing step of attaching the charged fine powder to any one of an exposed portion of the first photoconductive film to which the electrostatic charge is selectively moved in the exposure step 6 and the remaining non-exposed portion. An electrophotographic screen manufacturing method of a cathode ray tube. 제1항에 있어서, 상기 현상단계(7)에서의 미세분말이 제1, 제2 및 제3 형광체분말의 어느 하나를 포함하며, 그 각 제1, 제2 및 제3형광체분말에 대해 소망의 배열을 이루도록 상기 대전단계(5), 노광단계(6) 및 현상단계(7)가 반복적으로 실시되고, 그 후 각 형광체들을 고착시키는 고착단계를 포함하는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.The method of claim 1, wherein the fine powder in the developing step (7) comprises any one of the first, second and third phosphor powders, the desired powder for each of the first, second and third phosphor powders. The screen of the electrophotographic cathode ray tube, characterized in that the charging step (5), the exposure step (6) and the developing step (7) are repeatedly carried out to form an arrangement, and then a fixing step of fixing the respective phosphors. Manufacturing method. 제2항에 있어서, 상기 고착단계직전에 제1, 제2 및 제3형광체의 배열을 분리시키는 매트릭스 패턴을 형성하도록 빛흡수물질분말에 대해 상기 대전 단계(5)와 현상단계(7)가 실시되고, 그 고착단계는 배열된 각 형광체와 매트릭스패턴을 이룬 빛흡수물질을 고착시키는 단계인 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.3. The charging step (5) and the developing step (7) according to claim 2, wherein the charging step (5) and the developing step (7) are carried out on the light absorbing material powder to form a matrix pattern which separates the arrangement of the first, second and third phosphors immediately before the fixing step. The fixing step is a step of fixing the light absorbing material having a matrix pattern with each of the phosphors arranged, the screen manufacturing method of an electrophotographic cathode ray tube. 판넬내면에 형광면을 형성시키기 위한 전자사진식 음극선관의 스크린제조방법에 있어서; (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차코팅 단계; (2) 그 전도막위에 전기적 절연을 위한 절연막을 형성시키는 2차코팅 단계; (3) 그 절연막위에 제1파장역의 광선에 감응하는 물질을 함유하는 휘발성의 제1광전도막을 형성시키는 3차코팅 단계;(4) 그 제1광전도막위에 휘발성의 전도성막을 형성시키는 4차코팅 단계; (5) 그 전도성막에 -직류전극을 인가하고 상기전도막에 +직류전극을 인가하면서 상기 제1광전도막에 제1파장역의 광선을 새도우마스크를 통과시켜 노광하므로서 선택적으로 전도성막에 충전된 정전하를 제1광전도막에 이동시키는 대전 및 노광단계; 그리고 (6) 상기 대전 및 노광단계(5)에서 정전하가 선택적으로 이동된 제1광전도막의 노광부분과 그 나머지 비노광부분중 어느 하나의 영역에 대전된 미세분말을 부착시키는 현상단계를 포함하는 것을 특징으로 하는 음극선관의 전자사진식 스크린제조방법.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 an insulating film for electrical insulation on the conductive film; (3) a tertiary coating step of forming a volatile first photoconductive film containing a material sensitive to light rays of a first wavelength region on the insulating film; (4) a fourth order of forming a volatile conductive film on the first photoconductive film; Coating step; (5) selectively applying the -DC electrode to the conductive film and applying the + DC electrode to the conductive film, exposing the first wavelength region of light to the first photoconductive film through a shadow mask to expose the conductive film. Charging and exposing the electrostatic charges to the first photoconductive film; And (6) a developing step of attaching the charged fine powder to any one of an exposed portion of the first photoconductive film to which the electrostatic charge is selectively moved in the charging and exposing step (5) and the remaining non-exposed portion. Electrophotographic screen manufacturing method of a cathode ray tube, characterized in that. 제4항에 있어서, 상기 현상단계(6)에서의 미세분말이 제1, 제2 및 제3형광체분말의 어느 하나를 포함하며,그 각 제1, 제2 및 제3형광체분말에 대해 소망의 배열을 이루도록 상기 대전 및 노광단계(5)와, 현상단계(6)가 반복적으로 실시되고, 그 후 각 형광체들을 고착시키는 고착단계를 포함하는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.5. The method of claim 4, wherein the fine powder in the developing step (6) comprises any one of the first, second and third phosphor powders, wherein each of the first, second and third phosphor powders is of interest. Wherein the charging and exposing step (5) and the developing step (6) are repeatedly performed to form an arrangement, and then a fixing step of fixing the respective phosphors thereon. 제5항에 있어서, 상기 고착단계직전에 제1, 제2 및 제3형광체의 배열을 분리시키는 매트릭스 패턴을 형성하도록 빛흡수물질분말에 대해 상기 대전 및 노광단계(5)와 현상단계(6)가 실시되고, 그 고착단계는 배열된 각 형광체와매트릭스패턴을 이룬 빛흡수물질을 고착시키는 단계인 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.6. The charging and exposing step (5) and the developing step (6) for the light absorbing material powder according to claim 5, in order to form a matrix pattern separating the arrangement of the first, second and third phosphors immediately before the fixing step. And the fixing step is a step of fixing the light absorbing material having the matrix pattern and each of the phosphors arranged thereon. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012958A 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt KR100202866B1 (en)

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KR1019950012958A KR100202866B1 (en) 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt

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KR960042827A true KR960042827A (en) 1996-12-21
KR100202866B1 KR100202866B1 (en) 1999-06-15

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