KR960039086A - Screen manufacturing method of cathode ray tube and photoconductive coating solution used therein and cathode ray tube manufactured thereby - Google Patents

Screen manufacturing method of cathode ray tube and photoconductive coating solution used therein and cathode ray tube manufactured thereby Download PDF

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KR960039086A
KR960039086A KR1019950010420A KR19950010420A KR960039086A KR 960039086 A KR960039086 A KR 960039086A KR 1019950010420 A KR1019950010420 A KR 1019950010420A KR 19950010420 A KR19950010420 A KR 19950010420A KR 960039086 A KR960039086 A KR 960039086A
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ray tube
cathode ray
photoconductive film
fine powder
charged
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KR1019950010420A
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Korean (ko)
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윤상열
손호석
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엄길용
오리온전기 주식회사
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Priority to KR1019950010420A priority Critical patent/KR960039086A/en
Priority to KR1019960013252A priority patent/KR970071910A/en
Publication of KR960039086A publication Critical patent/KR960039086A/en

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Abstract

가시광선하에 모든 작업이 이루어지고 화학적 고착공정을 포함하는 음극선관의 스크린제조방법과 이에 사용되는 광전도막조성물이 개시된다. 판넬내면에 형광면을 형성시키기 위한 전자사진식 음극선관의 스크린 제조방법에 있어서 : (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차 코팅 단계; (2) 그 전도막위에 자외선에 감응하는 물질을 함유하는 휘발성 광전도막을 형성시킨 2차코팅 단계; (3) 그 광전도막에 균일한 정전하를 대전시키는 대전단계; 그리고 (4) 그 광전도막의 정전하를 선택적으로 방출시키도록 자외선 광원으로 새도우마스크를 통과시켜 노광하는 노광단계를 포함한다. 솔벤트증기를 쪼여 상기 광전도막의 폴리머를 녹이므로써 부착된 미세분말입자들이 그 광전도막에 고착된다. 또한, 미세분말입자들을 방전전극을 통과하여 분사시키므로써 미세분말입자들이 대전되고 현성된다. 이에 따라, 작업환경이 개선될 뿐만 아니라, 칼라음극선관의 경우 각 형광체마다 현상후 고착시킬 필요가 없어 공정이 감소되며, 복잡한 가열장치와 많은 열에너지소모가 제거되고, 또 파장이 짧고 직진성이 강한 자외선으로 노광하게 되고 형광입자나 빛흡수물질 등을 대전시킬 때 그 대전량을 용이하게 조정할 수 있어 음극선관의 품위를 높일수 있다.Disclosed are a method for producing a screen of a cathode ray tube and a photoconductive film composition used therein, all of which are performed under visible light and including a chemical fixation process. A method for manufacturing an electrophotographic cathode ray tube screen for forming a fluorescent surface on an inner surface of a panel, the method comprising: (1) forming a volatile conductive film on the inner surface of the panel; (2) a secondary coating step of forming a volatile photoconductive film containing a material sensitive to ultraviolet rays on the conductive film; (3) a charging step of charging a uniform electrostatic charge to the photoconductive film; And (4) an exposure step of exposing the shadow mask through an ultraviolet light source so as to selectively release the electrostatic charge of the photoconductive film. The fine powder particles adhered by dissolving the solvent vapor to melt the polymer of the photoconductive film are fixed to the photoconductive film. In addition, the fine powder particles are charged and manifested by spraying the fine powder particles through the discharge electrode. As a result, the working environment is not only improved, but the color cathode ray tube does not need to be fixed after development for each phosphor, thereby reducing the process, eliminating complicated heating devices and a large amount of thermal energy, and short-wavelength and strong ultraviolet light. The amount of charge can be easily adjusted when the fluorescent particles, the light absorbing material, and the like are charged, thereby improving the quality of the cathode ray tube.

Description

음극선관의 스크린제조방법과 이에 사용되는 광전도막도포용액 및 이에 의해 제조된 음극선관Screen manufacturing method of cathode ray tube and photoconductive coating solution used therein and cathode ray tube manufactured thereby

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

제5도 (가)내지 (마)는 본 발명에 따른 건식 전자사진식 스크린 제조방법을 설명하기 위한 개략도, 제6도는 본 발명에 따른 건식 전자사진식 스크린 제조방법에 의해 칼라음극선관을 제조하는 공정도.5 (a) to (e) is a schematic diagram for explaining a dry electrophotographic screen manufacturing method according to the present invention, Figure 6 is a method for manufacturing a color cathode ray tube by a dry electrophotographic screen manufacturing method according to the present invention Process chart.

Claims (12)

판넬내면에 형광면을 형성시키기 위한 전자사진식 음극선관의 스크린제조방법에 있어서; (1) 상기 판넬내면에 휘발성전도막을 형성시키는 1차 코팅 단계; (2) 그 전도막위에 자외선에 감응하는 물질을 함유하는 휘발성광전 도막을 형성시키는 2차코팅 단계; (3) 그 광전도막에 균일한 정전하를 대전시키는 대전단계; 그리고 (4) 그 광전도막의 정전하를 선택적으로 방출시키도록 자외선 광원으로 새도우마스크를 통과시켜 노광하는 노광단계를 포함하는 것을 특징으로 하는 전자사진식 음극선관의 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) forming a volatile photoelectric coating film containing a material sensitive to ultraviolet rays on the conductive film; (3) a charging step of charging a uniform electrostatic charge to the photoconductive film; And (4) an exposure step of exposing the shadow mask through an ultraviolet light source so as to selectively discharge the electrostatic charge of the photoconductive film. 제1항에 있어서; (5) 미세분말을 방전전극을 통과시켜 대전시키면서 분사시켜, 상기 노광단계(4)에서 정전하가 선택적으로 방출된 광전도막의 노광부분과 그 나머지 광전도막의 비노광부분중 어느 하나의 영역에 그 대전된 미세분말을 부착시키는 현상단계를 추가로 포함하며; 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 대전단계(3), 노광단계(4) 및 현상단계(5)가 반복적으로 실시되고, 그 후 각 형광체들을 고착시키는 고착단계를 포함하는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.The method of claim 1; (5) The fine powder is sprayed while passing through the discharge electrode and charged, and is applied to any one of the exposed portion of the photoconductive film selectively discharged in the exposure step (4) and the non-exposed portion of the remaining photoconductive film. And a developing step of attaching the charged fine powder; The charging step such that the fine powder in the developing step (5) comprises any one of the first, second and third phosphor powders, and forms a desired arrangement for each of the first, second and third phosphor powders. (3), the exposure step (4) and the developing step (5) are repeatedly carried out, and thereafter, a fixing step of fixing the respective phosphors. 제2항에 있어서, 상기 부착된 제1, 제2 및 제3 형광체의 배열을 분리시키는 매트릭스 패턴을 형성하도록 빛흡수물질분말에 대해 상기 대전 단계(3)와 현상단계(5)가 실시되고, 그 고착단계는 배열된 각 형광체와 매트릭스패턴을 이룬 빛흡수물질을 고착시키는 단계인 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.3. The charging step (3) and the developing step (5) are performed on the light absorbing material powder to form a matrix pattern separating the array of the attached first, second and third phosphors, The fixing step is a step of fixing the light absorbing material forming the matrix pattern with each phosphor arranged, the screen of the electrophotographic cathode ray tube, characterized in that. 제2항 또는 제3항에 있어서, 고착단계가 솔벤트증기를 쪼여 광전도막증의 폴리머가 녹아 미세분말을 고착시키는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.The method of manufacturing a screen of an electrophotographic cathode ray tube according to claim 2 or 3, wherein the fixing step uses solvent vapor to melt the polymer of the photoconductor film to fix the fine powder. 제1항 내지 제3항중 어느 한 항에 있어서, 상기 2차 코팅단계에서 자외선에 감응하는 물질이 비스디메틸 페닐 디페닐 부타트리엔, 트리니트로플루오리논 및 에틸 안크라퀴논중 적어도 한가지 이상인 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.The method of claim 1, wherein the ultraviolet-sensitive material in the second coating step is at least one of bisdimethyl phenyl diphenyl butytriene, trinitrofluorinone and ethyl ankraquinone. Screen production method of electrophotographic cathode ray tube. 제1항 내지 제3항중 어느 한 항에 있어서, 정전하가 1K볼트 이하인 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.The method for producing an electrophotographic cathode ray tube according to any one of claims 1 to 3, wherein the electrostatic charge is 1 K volts or less. 판넬내면에 휘발성 전도막을 형성시키고 그 위에 휘발성 광전도막을 형성시키며, 그 광전도막에 균일한 정전하를 대전시킨 후, 자외선 광원에 의해 선택적으로 그 광전도막의 정전하를 방출시켜서 정전하로 대전된 분말입자를 부착시키는 전자사진식음극선관의 스크린제조에 사용되는 상기 광전도막의 조성이, 미스디메틸 페닐 디페닐 부타트리엔(bisdimethyl phenyl diphenyl butatriene), 트리니트로플루오리논(trinitrofluorenone : TNF) 및 에틸 안트라퀴논(ethyl anthraquinone : EAQ)중 적어도 한가지 이상을 각각 0.01 내지 10중량% 함유하는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조용 광전도막도포용액.A volatile conductive film is formed on the inner surface of the panel, and a volatile photoconductive film is formed thereon. The uniform electrostatic charge is charged on the photoconductive film, and the powder is charged to the electrostatic charge by selectively releasing the electrostatic charge of the photoconductive film by an ultraviolet light source. The composition of the photoconductive film used for screen production of an electrophotographic cathode ray tube to which particles are attached is bisdimethyl phenyl diphenyl butatriene, trinitrofluorenone (TNF) and ethyl anthraquinone. (Ethyl anthraquinone: EAQ) at least one or more, each containing 0.01 to 10% by weight of the photoconductive film coating solution for screen production of an electrophotographic cathode ray tube. 제7항에 있어서, 고분자바인더(binder)로서 1-30중량%의 폴리스티렌(polystyrene)과, 나머지는 톨루엔(toluene), 크실렌(xylene) 또는 이들의 혼합물로 구성되는 것을 특징으로 하는 전자사진식 음극선관의 스크린 제조용 광전도막 도포용액.8. An electrophotographic cathode according to claim 7, characterized in that it is composed of 1-30% by weight of polystyrene as a polymer binder and the remainder of toluene, xylene or a mixture thereof. Photoconductive coating solution for screen production of tubes. 판넬의 내면에 코팅된 휘발성전도막위에 자외선에 감응하는 물질을 함유하는 휘발성광전도막을 형성시키고, 그 광전도막에 균일한 정전하를 대전시킨 후, 그 광전도막을 자외선광원으로부터 자외선을 새도우마스크를 통과시켜 선택적으로 노광하고, 그 노광된 부분에 방전전극에 의해 대전된 제1형광체를 부착시켜며, 제2 및 제3 형광체에 대해서도 각각 소망의 배열로 상기 대전단계, 노광단계 및 부착단계를 반복하고 나서 그 형광체들을 솔벤트증기를 쪼여 고착시켜 형성된 형광면을 지니는 것을 특징으로하는 음극선관.A volatile photoconductive film containing a material sensitive to ultraviolet rays is formed on the volatile conductive film coated on the inner surface of the panel, and the photoconductive film is charged with a uniform electrostatic charge. Pass through and selectively expose the exposed portions, attaching the first phosphor charged by the discharge electrode to the exposed portion, and repeating the above charging, exposing and attaching steps in a desired arrangement for the second and third phosphors, respectively. And a fluorescent surface formed by attaching the phosphors to the phosphor vapor by splicing the phosphor. 판넬내면에 휘발성전도막과 그 전도막위에 휘발성 광전도막을 형성하고, 그 광전도막에 정전하를 대전시킨 후 그 광전도막의 선택된 영역들로부터 정전하를 방출시키고 그 선택된 영역과 선택되지 않은 영역의 어느 한 영역에 대전된 미세분말입자들을 부착시키는 단계들을 포함하는 전자사진식 음극선관의 스크린제조방법에 있어서, 미세분말입자들을 방전전극을 통과하여 분사시키므로써 미세분말 입자들이 대전되는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.A volatile conductive film and a volatile photoconductive film are formed on the inner surface of the panel, and the electrostatic charge is charged on the photoconductive film, and then the electrostatic charge is discharged from selected areas of the photoconductive film, An electrophotographic cathode ray tube screen manufacturing method comprising the steps of attaching charged fine powder particles to a region, wherein the fine powder particles are charged by spraying the fine powder particles through a discharge electrode. Screen manufacturing method of electrophotographic cathode ray tube. 판넬내면에 휘발성전도막과 그 전도막위에 폴리머를 포함하는 휘발성광전도막을 형성하고, 그 광전도막에 정전하를 대전시킨 후 그 광전도막의 선택된 영역들로부터 정전하를 방출시키고 그 선택된 영역과 선택되지 않은 영역의 어느 한 영역에 대전된 미세분말입자들을 부착시키며, 그 광전도막에 부착된 미세분말입자들을 그 광전도막에 고착시키는 단계들을 포함하는 전자사진식 음극선관의 스크린 제조방법에 있어서, 솔벤트증기를 쪼여 상기 광전도막의 폴리머를 녹이므로써 부착된 미세분말입자들이 그 광전도막에 고착되는 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.A volatile photoconductive film containing a polymer is formed on the inner surface of the panel, and a volatile photoconductive film containing a polymer is formed on the panel. A method of manufacturing a screen for an electrophotographic cathode ray tube, comprising the steps of attaching charged fine powder particles to a region of a non-region, and fixing the fine powder particles attached to the photoconductive film to the photoconductive film. A method for producing an electrophotographic cathode ray tube, characterized in that the fine powder particles attached by dissolving the polymer of the photoconductive film by steaming are fixed to the photoconductive film. 제11항에 있어서, 솔벤트가 아세톤 또는 메틸 이소부틸 케톤인 것을 특징으로 하는 전자사진식 음극선관의 스크린제조방법.12. The method for producing an electrophotographic cathode ray tube according to claim 11, wherein the solvent is acetone or methyl isobutyl ketone. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019950010420A 1995-04-29 1995-04-29 Screen manufacturing method of cathode ray tube and photoconductive coating solution used therein and cathode ray tube manufactured thereby KR960039086A (en)

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KR1019960013252A KR970071910A (en) 1995-04-29 1996-04-27 A method of manufacturing a dry electrophotographic screen of a cathode ray tube and a cathode ray tube

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980068817A (en) * 1997-02-24 1998-10-26 안기훈 Method of forming thin film for panel of cathode ray tube
KR19990012590A (en) * 1997-07-30 1999-02-25 안기훈 Panel manufacturing method for cathode ray tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980068817A (en) * 1997-02-24 1998-10-26 안기훈 Method of forming thin film for panel of cathode ray tube
KR19990012590A (en) * 1997-07-30 1999-02-25 안기훈 Panel manufacturing method for cathode ray tube

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