KR970017870A - Method of forming lacquer film in manufacturing electrophotographic screen of cathode ray tube - Google Patents

Method of forming lacquer film in manufacturing electrophotographic screen of cathode ray tube Download PDF

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Publication number
KR970017870A
KR970017870A KR1019950033477A KR19950033477A KR970017870A KR 970017870 A KR970017870 A KR 970017870A KR 1019950033477 A KR1019950033477 A KR 1019950033477A KR 19950033477 A KR19950033477 A KR 19950033477A KR 970017870 A KR970017870 A KR 970017870A
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KR
South Korea
Prior art keywords
film
forming
ray tube
cathode ray
shielding film
Prior art date
Application number
KR1019950033477A
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Korean (ko)
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KR100202870B1 (en
Inventor
윤상열
Original Assignee
엄길용
오리온전기 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 엄길용, 오리온전기 주식회사 filed Critical 엄길용
Priority to KR1019950033477A priority Critical patent/KR100202870B1/en
Publication of KR970017870A publication Critical patent/KR970017870A/en
Application granted granted Critical
Publication of KR100202870B1 publication Critical patent/KR100202870B1/en

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Classifications

    • 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
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2329/00—Electron emission display panels, e.g. field emission display panels
    • H01J2329/18—Luminescent screens
    • H01J2329/28—Luminescent screens with protective, conductive or reflective 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

본 발명은 음극선관의 전자사진식 스크린 제조에 있어 라커막 형성방법에 관한 것이다.The present invention relates to a method for forming a lacquer film in the production of an electrophotographic screen of a cathode ray tube.

본 발명은 판넬 내면에 형광면을 형성시키기 위한 음극선관의 스크린 제조방법에 있어서, (1) 빛 흡수층 및 형광체 스트라이프의 고착단계를 거친 후 : (2) 이들을 다시 +전하로 대전시키는 대전단계 : (3) 상기 대전된 표면에 실리카(silica) 성분으로 도포하는 차폐막 형성단계 : (4) 상기 차폐막의 표면에 수증기를 분무하는 수증기 처리 단계 : 그리고 (5) 이후 라커막을 형성시키는 단계를 포함한다.In the method of manufacturing a cathode ray tube screen for forming a fluorescent surface on the inner surface of the panel, (1) after the fixing step of the light absorbing layer and the phosphor stripe: (2) the charging step of charging them to + charge again: (3 A shielding film forming step of applying a silica component to the charged surface: (4) water vapor treatment step of spraying water vapor on the surface of the shielding film; and (5) thereafter forming a lacquer film.

본 발명에서는 광전도막과 라커막 사이에 차폐막을 형성시킴으로써, 라커막에 사용된 톨루엔 등의 용매가 원천적으로 광도전막과 반응할 수 없게 되므로, 종래와 같은 핀홀(pin hole) 현상이 발생하지 않게 되고, 이로 인하여 최종제품인 음극선관의 스크린의 품위를 향상시킬 수 있는 등의 효과가 있다.In the present invention, since a shielding film is formed between the photoconductive film and the lacquer film, a solvent such as toluene used in the lacquer film is not able to react with the photoconductive film at the source, so that a pinhole phenomenon as described above is not generated. Therefore, there is an effect such as to improve the quality of the screen of the cathode ray tube of the final product.

Description

음극선관의 전자사진식 스크린 제조에 있어 라커막 형성방법Method of forming lacquer film in manufacturing electrophotographic screen of cathode ray tube

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제6도는 본 발명에 의한 건식전자사진식 스크린 제조공정을 개략적으로 도시한 공정도,6 is a process diagram schematically showing a dry electrophotographic screen manufacturing process according to the present invention;

제7도는 본 발명의 방법에 의해 제조된 스크린 부분의 확대단면도이다.7 is an enlarged cross-sectional view of a screen portion produced by the method of the present invention.

Claims (4)

판넬내면에 형광면을 형성시키기 위한 음극선관의 스크린 제조방법에 있어서, (1) 빛 흡수층 및 형광체의 고착단계를 거친 후 (2) 이들을 다시 +전하로 대전시키는 대전단계 : (3) 상기 대전된 표면에 실리카(silica)성분으로 도포하는 차폐막 형성단계 : (4) 상기 차폐막의 표면에 수증기를 분무하는 수증기 처리단계 : 그리고 (5) 이후 라커막을 형성시키는 단계를 포함하는 것을 특징으로 하는 전자사진식 스크린제조에 있어 라커막의 형성방법.In the method of manufacturing a cathode ray tube screen to form a fluorescent surface on the inner surface of the panel, (1) after the fixing step of the light absorbing layer and the phosphor (2) the charging step of charging them back to + charge: (3) the charged surface Shielding film forming step of applying a silica component to: (4) water vapor treatment step of spraying water vapor on the surface of the shielding film: and (5) after the electrophotographic screen comprising the step of forming a lacquer film Formation method of lacquer film in manufacture. 제1항에 있어서, 라커막 형성단계 (5)를 거친 이후, 알루미늄막을 형성하고 베이킹시키는 후처리 단계를 포함하는 것을 특징으로 하는 전자사진식 스크린제조에 있어 라커막의 형성방법.The method of claim 1, further comprising a post-treatment step of forming and baking an aluminum film after the lacquer film forming step (5). 제1항 또는 제2항에 있어서, 차폐막 형성단계 (3)는 정전기적 인력에 의하여 수행되는 것을 특징으로 하는 전자사진식 스크린제조에 있어 라커막의 형성방법.The method of claim 1 or 2, wherein the shielding film forming step (3) is performed by electrostatic attraction. 제3항에 있어서, 차폐막 형성단계 (3)에서 차폐막의 두께는 0.5 내지 0.2㎛인 것을 특징으로 하는 전자사진식 스크린제조에 있어 라커막의 형성방법.4. A method for forming a rocker film according to claim 3, wherein the thickness of the shielding film in the shielding film forming step (3) is 0.5 to 0.2 mu m. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950033477A 1995-09-30 1995-09-30 Processing method of lacquer membrane in electrophotographic screen manufacture of crt KR100202870B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950033477A KR100202870B1 (en) 1995-09-30 1995-09-30 Processing method of lacquer membrane in electrophotographic screen manufacture of crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950033477A KR100202870B1 (en) 1995-09-30 1995-09-30 Processing method of lacquer membrane in electrophotographic screen manufacture of crt

Publications (2)

Publication Number Publication Date
KR970017870A true KR970017870A (en) 1997-04-30
KR100202870B1 KR100202870B1 (en) 1999-06-15

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KR1019950033477A KR100202870B1 (en) 1995-09-30 1995-09-30 Processing method of lacquer membrane in electrophotographic screen manufacture of crt

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Publication number Publication date
KR100202870B1 (en) 1999-06-15

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