KR960042815A - Method for manufacturing electrophotographic screen of cathode ray tube and photoconductive solution - Google Patents

Method for manufacturing electrophotographic screen of cathode ray tube and photoconductive solution Download PDF

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Publication number
KR960042815A
KR960042815A KR1019950012953A KR19950012953A KR960042815A KR 960042815 A KR960042815 A KR 960042815A KR 1019950012953 A KR1019950012953 A KR 1019950012953A KR 19950012953 A KR19950012953 A KR 19950012953A KR 960042815 A KR960042815 A KR 960042815A
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South Korea
Prior art keywords
ray tube
cathode ray
film
photoconductive film
plasticizer
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KR1019950012953A
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Korean (ko)
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KR100202865B1 (en
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윤상열
손호석
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엄길용
오리온전기 주식회사
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Priority to KR1019950012953A priority Critical patent/KR100202865B1/en
Publication of KR960042815A publication Critical patent/KR960042815A/en
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Publication of KR100202865B1 publication Critical patent/KR100202865B1/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
    • H01J9/221—Applying luminescent coatings in continuous layers

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

Abstract

광전도막의 가소성을 향상시켜 광전도막을 균일하게 형성시키고 크랙발생을 방지시키므로서 균일한 형광막을 형성시키는음극선관의 전자사진식 스크린 제조방법과 이에 사용되는 광전도막도포용액이 개시된다.Disclosed are an electrophotographic screen manufacturing method of a cathode ray tube for forming a uniform fluorescent film by improving the plasticity of the photoconductive film to uniformly form the photoconductive film and preventing cracks, and a photoconductive coating solution used therein.

그 가소제의 양은 0.001 내지 2 중량%가 바람직하며, 디부틸 프탈레이트(dibutyl phthalate), 디부틸 세바케이트(dibutylsebacate), 디옥틸 프탈레이트(dioctyl phthalate), 디옥틸 세바게이트(dioctyl sebacate) 또는 그 혼합물이 광전도막도포용액에 첨가된다.The amount of the plasticizer is preferably 0.001 to 2% by weight, and dibutyl phthalate, dibutyl sebacate, dioctyl phthalate, dioctyl sebacate or a mixture thereof is photoelectric. It is added to the coating film solution.

이에 따라, 균일하게 광전도막이 형성되고 크랙이 발생하지 아니하게 되어, 광전도막의 전면적에 걸쳐 균일하게 전하가대전될 수 있게 되며, 또한 노광공정에서도 균일하고도 정확하게 새도우마스크의 애피처나 슬리트를 통과한 부분만 전하가 방출되어 노광이 이루어지게 되고, 현상공정에서는 정전하로 대전된 형광입자 등 미세분말이 균일하게 소정의 배열구조로 광전도막(134)에 부착되게 된다. 결국 균일하고도 정확한 소정의 배열구조로 스크린이 형성될 수 있어 음극선관의 품위가 향상되는 효과가 있다.As a result, the photoconductor film is uniformly formed and cracks do not occur, so that the charge can be uniformly distributed over the entire surface of the photoconductor film. Only the passing portion is discharged to be exposed to light, and in the developing process, fine powders such as fluorescent particles charged with electrostatic charge are uniformly attached to the photoconductive film 134 in a predetermined arrangement. As a result, the screen can be formed in a uniform and accurate predetermined arrangement structure, thereby improving the quality of the cathode ray tube.

Description

음극선관의 전자사진식 스크린제조방법 및 이에 사용된 광전도막용액Electrophotographic Screen Manufacturing Method of Cathode Ray Tube and Photoconductive Film Solution

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

제1도는 칼라음극선관의 부분단면한 개략정면도, 제2도는 제1도의 음극선관의 스크린 구성을 나타낸 부분 확대단면도, 제3도는 (가) 내지 (마)는 건식 전자사진식 스크린 제조방법을 설명하기 위한 개략도.1 is a schematic front view showing a partial cross-section of a color cathode ray tube, FIG. 2 is a partially enlarged cross-sectional view showing the screen configuration of the cathode ray tube of FIG. 1, and FIGS. 3A to 3E show a method for manufacturing a dry electrophotographic screen. Schematic for illustration.

Claims (6)

(1) 판넬의 내면에 유기전도막 수용액으로 휘발성전도막을 형성시키는 1차 코팅단계; (2) 그 전도막위에그 전도막을 오염시키지 아니하는 유기광전도막 도포용액으로 휘발성광전도막을 형성시키는 2차 코팅단계; (3) 그 광전도막에 균일한 정전하를 대전시키는 대전단계; (4) 그 대전된 광전도막의 정전하를 선택적으로 방출시키도록 새도우마스크를 통과시켜 노광하는 노광단계; 그리고 (5) 소정의 미세분말을 대전시켜 상기 노광단계에서 정전하가 선택적으로 방출된고광부분과 그 나머지 비노광부분중 어느 하나의 영역에 그 대전된 미세분말을 부착시키는 현상단계를 포함하는 전자사진식 스크린 제조방법에 있어서; 상기 2차 코팅 단계에서 사용되는 유기광전도막 도포용액이 가소제를 포함하는 것을 특징으로 하는 음극선관의 전자사진식 스크린 제조방법.(1) a primary coating step of forming a volatile conductive film with an organic conductive film aqueous solution on the inner surface of the panel; (2) a secondary coating step of forming a volatile photoconductive film with an organic photoconductive film coating solution that does not contaminate the conductive film on the conductive film; (3) a charging step of charging a uniform electrostatic charge to the photoconductive film; (4) an exposure step of passing through the shadow mask to expose the electrostatic charge of the charged photoconductive film selectively; And (5) a developing step of charging the predetermined fine powder to attach the charged fine powder to any one of a region of the high-light portion and the remaining non-exposed portion in which the electrostatic charge is selectively released in the exposure step. In the photographic screen manufacturing method; An electrophotographic screen manufacturing method of a cathode ray tube, characterized in that the organic photoconductive film coating solution used in the secondary coating step comprises a plasticizer. 제1항에 있어서, 상기 가소제가 0.0001 내지 2중량%인 것을 특징으로 하는 음극선관의 전자사진식 스크린 제조방법.The method of claim 1, wherein the plasticizer is 0.0001 to 2% by weight. 제1항 또는 제2항에 있어서, 상기 가소제가, 디부틸 프탈레이트(dibutyl phthalate), 디부틸 세바케이트(dibutyl sebacate), 디옥틸 프탈레이트(dioctyl phthalate), 디옥틸 세바케이트(dioctyl sebacate) 또는 이들의 혼합물인 것을 특징으로 하는 음극선관의 전자사진식 스크린 제조방법.The method according to claim 1 or 2, wherein the plasticizer is dibutyl phthalate, dibutyl sebacate, dioctyl phthalate, dioctyl sebacate or a combination thereof. An electrophotographic screen manufacturing method of a cathode ray tube, characterized in that the mixture. 판넬내면에 유기전도막수용액으로 휘발성 전도막을 형성시키고 그 위에 유기광전도막도포용액으로 휘발성광전도막을 형성시키며, 그 광전도막에 균일한 정전하를 대전시킨 후, 광원에 의해 선택적으로 그 광전도막의 정전하를방출시켜서 정전하로 대전된 분말입자를 부착시키는 단계들을 포함하는 음극선관의 전자사진식 스크린제조방법에 있어서;상기 막형성단계에서 사용되는 유기광전도막 도포용액이 가소제를 포함하는 것을 특징으로 하는 음극선관의 전자사진식스크린 제조용 유기광전도막도포용액.A volatile conductive film is formed on the inner surface of the panel with an aqueous organic conductive film solution, and a volatile photoconductive film is formed on the organic photoconductive film coating solution thereon. An electrophotographic screen manufacturing method of a cathode ray tube comprising the steps of releasing an electrostatic charge to attach powder particles charged with an electrostatic charge; The organic photoconductive film coating solution used in the film forming step includes a plasticizer. An organic photoconductive film coating solution for producing an electrophotographic screen of a cathode ray tube. 제4항에 있어서, 상기 가소제가 0.0001 내지 2중량%인 것을 특징으로 하는 음극선관의 전자사진식 스크린제조용 유기광전도막도포용액.The organic photoconductive film coating solution for producing an electrophotographic screen of a cathode ray tube according to claim 4, wherein the plasticizer is 0.0001 to 2% by weight. 제4항 또는 제5항에 있어서, 상기 가소제가, 디부틸 프탈레이트(dibutyl phthalate), 디부틸 세바케이트(dibutyl sebacate), 디옥틸 프탈레이트(dioctyl phthalate), 디옥틸 세바케이트(dioctyl sebacate) 또는 이들의 혼합물인 것을 특징으로 하는 음극선관의 전자사진식 스크린 제조용 유기광전도막도포용액.The plasticizer of claim 4 or 5, wherein the plasticizer is dibutyl phthalate, dibutyl sebacate, dioctyl phthalate, dioctyl sebacate, or a combination thereof. An organic photoconductive film coating solution for producing an electrophotographic screen of a cathode ray tube, characterized in that a mixture. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950012953A 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt and photoconductive membrane liquid KR100202865B1 (en)

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KR1019950012953A KR100202865B1 (en) 1995-05-24 1995-05-24 Manufacturing method of electrophotographic screen of crt and photoconductive membrane liquid

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KR100202865B1 KR100202865B1 (en) 1999-06-15

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