KR930018622A - Manufacturing method of fluorescent film for cathode ray tube - Google Patents

Manufacturing method of fluorescent film for cathode ray tube Download PDF

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Publication number
KR930018622A
KR930018622A KR1019920002442A KR920002442A KR930018622A KR 930018622 A KR930018622 A KR 930018622A KR 1019920002442 A KR1019920002442 A KR 1019920002442A KR 920002442 A KR920002442 A KR 920002442A KR 930018622 A KR930018622 A KR 930018622A
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KR
South Korea
Prior art keywords
phosphor
ray tube
cathode ray
fluorescent film
ball mill
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Application number
KR1019920002442A
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Korean (ko)
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KR940007645B1 (en
Inventor
박만기
Original Assignee
김정배
삼성전관 주식회사
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Priority to KR1019920002442A priority Critical patent/KR940007645B1/en
Publication of KR930018622A publication Critical patent/KR930018622A/en
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Publication of KR940007645B1 publication Critical patent/KR940007645B1/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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Luminescent Compositions (AREA)

Abstract

본 발명은 음극선관용 형광막의 제조방법에 관한 것으로서, 적색 발광 형광체의 분산애게 인듐염과 염기성 수용액을 가하여 형광체 표면에 수산화인듐을 석출시키고 이를 내열성 도가니에 넣어 황화 수소(H2S)가스 분위기하에서 700 내지 950℃온도 범위로 2 내지 8시간 동안 소성하여 황화인듐(In2S3)안료가 부착된 적색 발광 형광체를 제조하는 단계와; 상기 소성물을 순수, 볼 밀과 함께 혼합하여 볼 밀 처리한 후 건조하는 단계와; 상기 건조물을 사용하여 형광체 슬러리를 제조하고 이를 패널 내면에 도포하여 노광 및 현상함으로 적색 형광체 패턴을 형성하는 단계;를 포함하는 음극선관용 형광막의 제조방법이 제공된다.The present invention relates to a method for producing a fluorescent film for cathode ray tube, in which the indium salt and the basic aqueous solution of the red light emitting phosphor are added to precipitate indium hydroxide on the surface of the phosphor and placed in a heat-resistant crucible under a hydrogen sulfide (H 2 S) gas atmosphere. Preparing a red light-emitting phosphor to which an indium sulfide (In 2 S 3 ) pigment is attached by baking for 2 to 8 hours in a temperature range of 950 ° C .; Mixing the calcined product with pure water and a ball mill, followed by drying the ball mill; A method of manufacturing a cathode ray tube fluorescent film is provided, comprising: forming a phosphor slurry using the dried material and applying the same to a panel inner surface to expose and develop a red phosphor pattern.

Description

음극선관용 형광막의 제조방법Manufacturing method of fluorescent film for cathode ray tube

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

제3도는 황화인듐 안료를 부착한 적색 발광 형광체를 본 발명의 실시예 1에 따라 형광막에 채용하여 얻어진 형광막의 200배 확대 사진이다.FIG. 3 is a 200 times magnified photograph of a fluorescent film obtained by employing a red light-emitting phosphor having an indium sulfide pigment applied to the fluorescent film according to Example 1 of the present invention.

제4도는 황화인듐 안료를 부착한 적색 발광 형광체를 본 발명의 실시예2에 따라 형광막에 채용하여 얻어진 200배 확대 사진이다.4 is a 200 times magnified photograph obtained by employing a red light-emitting phosphor having an indium sulfide pigment applied to a fluorescent film according to Example 2 of the present invention.

Claims (5)

적색 발광 형광체의 분산액에 인듐염과 염기성 수용액을 가하여 형광체 표면에 수산화인듐을 석출시키고 이를 내열성 도가니에 넣어 황화 수소(H2S)가스 분위기하에서 700 내지 950℃온도 범위로 2 내지 8시간 동안 소성하여 황화인듐(In2S3) 안료가 부착된 적색 발광 형광체를 제조하는 단계와; 상기 소성물을 순수, 볼 밀과 함께 혼합하여 볼 밀 처리한 후 건조하는 단계와; 상기 건조물을 사용하여 황광체 슬러리를 제조하고 이를 패널 내면에 도포하여 노광 및 현상함으로 적색 형광체 패턴을 형성하는 단계;를 포함하는 음극선관용 형광막의 제조방법.The addition of an indium salt with a basic aqueous solution to the dispersion of the red light-emitting phosphor deposit a hydroxide of indium in the phosphor surface and put into a heat-resistant crucible hydrogen sulfide (H 2 S) calcined at 700 to 950 ℃ temperature range 2 to 8 hours in a gas atmosphere, Preparing a red light emitting phosphor to which an indium sulfide (In 2 S 3 ) pigment is attached; Mixing the calcined product with pure water and a ball mill, followed by drying the ball mill; Preparing a yellow phosphor slurry using the dried material and applying the same to an inner surface of the panel to form a red phosphor pattern by exposure and development. 제1항에 있어서, 상기 염기성 수용액의 pH가 4 내지 7인 것을 특징으로 하는 음극선관용 형광막의 제조방법.The method of claim 1, wherein the pH of the basic aqueous solution is 4 to 7, characterized in that the fluorescent film for cathode ray tube. 제1항에 있어서, 상기 적색 발광 형광체가 유로피움 부활 산황화이트륨 형광체(Y2O2S : Eu), 유로피움 부활산화이트륨 형광체(Y2O3: Eu), 유로피움 부활 산화이트륨 형광체(Y2O3: Eu), 유로피움 부활 바나딘산 이트륨 형광체(YVO4: Eu)중 어느 하나인 것을 특징으로 하는 음극선관용 형광막의 제조방법.The method of claim 1, wherein the red light-emitting phosphor is europium-activated yttrium oxide phosphor (Y 2 O 2 S: Eu), europium-activated yttrium phosphor (Y 2 O 3 : Eu), europium-activated yttrium phosphor ( Y 2 O 3 : Eu), europium-activated yttrium vanadate phosphor (YVO 4 : Eu), any one of the manufacturing method of the fluorescent film for cathode ray tube. 제1항에 있어서, 상기 황화수소(H2S)가스 분위기는, 소성시 2ℓ/min의 속도로 황화수소(H2S) 가스를 주입하여 형성하는 것을 특징으로 하는 음극선관용 형광막의 제조방법.The method of claim 1, wherein the hydrogen sulfide (H 2 S) gas atmosphere is formed by injecting hydrogen sulfide (H 2 S) gas at a rate of 2 L / min during firing. 제1항에 있어서, 상기 볼 밀 처리를 30 내지 50rpm의 속도로 수행하는 것을 특징으로 하는 음극선관용 형광막의 제조방법.The method of claim 1, wherein the ball mill treatment is performed at a speed of 30 to 50 rpm. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920002442A 1992-02-19 1992-02-19 Fluorescent layer manufacturing method of crt KR940007645B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920002442A KR940007645B1 (en) 1992-02-19 1992-02-19 Fluorescent layer manufacturing method of crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920002442A KR940007645B1 (en) 1992-02-19 1992-02-19 Fluorescent layer manufacturing method of crt

Publications (2)

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KR930018622A true KR930018622A (en) 1993-09-22
KR940007645B1 KR940007645B1 (en) 1994-08-22

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