KR100553140B1 - 봉입된전기발광성인광체및이의제조방법 - Google Patents
봉입된전기발광성인광체및이의제조방법 Download PDFInfo
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- KR100553140B1 KR100553140B1 KR1019910006896A KR910006896A KR100553140B1 KR 100553140 B1 KR100553140 B1 KR 100553140B1 KR 1019910006896 A KR1019910006896 A KR 1019910006896A KR 910006896 A KR910006896 A KR 910006896A KR 100553140 B1 KR100553140 B1 KR 100553140B1
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- Prior art keywords
- phosphor particles
- phosphor
- particles
- brightness
- encapsulated
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/442—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using fluidised bed process
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/917—Electroluminescent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
Claims (8)
- 거의 투명한 연속상의 산화물 피복층내에 본질적으로 완전히 봉입되고 습도-가속된 감쇠에 민감한 전기 발광성 인광체 입자를 포함하며; 상기 봉입된 인광체 입자는 피복되지 않은 인광체 입자의 초기 전기발광 명도와 같거나 그 명도의 약 50% 이상인 초기 전기발광 명도를 가지며, 상대 습도 95% 이상의 환경에서 100 시간 작동시킨 후 보유되는 발광 명도의 백분율이, 작동온도, 전압 및 진동수가 거의 같은 상태에서 100 시간 작동시킨 후 보유되는 고유한 명도의 약 70% 이상인 것을 특징으로 하는 봉입된 전기발광성 인광체 입자.
- 거의 투명한 연속상의 금속 산화물 피복층내에 본질적으로 완전히 봉입되고 습도-가속된 감쇠에 민감한 전기 발광성 인광체 입자를 포함하며; 상기 봉입된 인광체 입자는 피복되지 않은 인광체 입자의 초기 전기발광 명도와 같거나 그 명도의 약 50% 이상인 초기 전기 발광 명도를 갖고, 상기 금속 산화물 피복층은 증기상 금속 산화물 전구체의 가수분해를 통해서 형성되는 것을 특징으로 하는 봉입된 전기발광성 인광체 입자.
- 인광체 입자의 표면에서 해로운 열화학 반응 또는 내부 열 손상의 결과로서 인광체 입자를 실질적으로 열화시키지 않는 온도에서, 증기상 금속 산화물 전구체의 가수분해를 통해서 본질적으로 형성되는 거의 투명한 연속상의 금속 산화물 피복층내에 본질적으로 완전히 봉입된, 황화아연계 전기발광성 인광체 입자를 포함하는 것을 특징으로 하는 봉입된 전기발광성 인광체 입자.
- 봉입된 입자의 각각이습기의 존재하에서 습도-가속된 감쇠를 나타내는 전기발광성 인광체 물질의 인광체 입자; 및산화 알루미늄 피복물 보다 액체 물로부터의 화학적 감쇠에 대한 저항성이 더 크고 상기 인광체 입자를 충분히 봉입하여 상기 인광체 입자에 습도-가속된 감쇠로부터의 실질적인 보호를 제공하는 거의 투명한 다수의 금속 산화물 피복층을 포함하며,상기 피복층은 상기 산화 알루미늄과 하나 이상의 다른 금속 산화물을 포함하는 것을 특징으로 하는 다수의 봉입된 입자.
- 제1 전극, 제1항 내지 제4항 중 어느 한 항의 봉입된 전기발광성 인광체 입자로 로딩된 유전성 매트릭스 층, 및 후면 전극을 순서대로 포함하는 것을 특징으로 하는 전기발광성의 두꺼운 필름 장치.
- 인광체 입자를 거의 투명한 산화물 피복층내에 봉입시키는 방법에 있어서,상기 방법은a) 습도-가속된 감쇠에 민감한 전기발광성 인광체 입자의 교반된 층을 제공하는 단계;b) 상기 층을 인광체 입자를 실질적으로 열화시키지 않는 온도로 가열하는 단계;c) 상기 층을 하나 이상의 증기상 산화물 전구체에 노출시켜, 그 전구체가 실질적으로 가수분해를 통해서 화학적으로 반응하여 상기 입자의 각각의 표면을 본질적으로 완전히 봉입하는 거의 투명한 산화물 피복층을 형성함으로써, 봉입된 인광체 입자를 생성하는 단계; 및d) 상기 봉입된 입자를 냉각시키는 단계를 포함하는 것을 특징으로 하는 방법.
- 인광체 입자를 거의 투명한 산화물 피복층내에 봉입시키는 방법에 있어서,상기 방법은a) 인광체 입자의 교반된 층을 제공하는 단계;b) 상기 층을 약 25℃ 내지 약 170℃ 의 온도로 가열하는 단계;c) 상기 층을 하나 이상의 증기상 산화물 전구체에 노출시켜, 그 전구체가 가수분해 및 축합을 통해서 화학적으로 반응하여 상기 입자의 각각의 표면을 본질적으로 완전히 봉입하는 거의 투명한 산화물 피복층을 형성함으로써, 봉입된 인광체 입자를 생성하는 단계; 및d) 상기 봉입된 입자를 냉각시키는 단계를 포함하는 것을 특징으로 하는 방법.
- 인광체 입자를 봉입시키는 방법에 있어서, 상기 방법은각각이 수분의 존재하에서 습도-가속된 감쇠를 나타내는 인광체 입자의 층을 제공하는 단계;증기상 산화 알루미늄 전구체 및 하나 이상의 다른 증기상 금속 산화물 전구체로 이루어지는 적어도 두 개의 전구체를 제공하는 단계; 및상기 층을 전구체에 노출시켜서, 전구체들이 화학적으로 반응하고 산화 알루미늄과 하나 이상의 다른 금속 산화물로 이루어지는 다수의 금속 산화물 피복물로 각 인광체 입자를 봉입하는 단계로 이루어지고,여기서 피복물은 거의 투명하고, 주로 산화알루미늄으로 구성되는 피복물 보다 액체 물로부터의 화학적 감쇠에 더 저항성이 크고, 인광체 입자에 습도-가속된 감쇠로부터 실질적인 보호를 제공하도록 충분히 봉입하는 것을 특징으로 하는 방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/514,440 US5156885A (en) | 1990-04-25 | 1990-04-25 | Method for encapsulating electroluminescent phosphor particles |
US514,440 | 1990-04-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910018517A KR910018517A (ko) | 1991-11-30 |
KR100553140B1 true KR100553140B1 (ko) | 2006-06-16 |
Family
ID=24047144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910006896A KR100553140B1 (ko) | 1990-04-25 | 1991-04-24 | 봉입된전기발광성인광체및이의제조방법 |
Country Status (6)
Country | Link |
---|---|
US (3) | US5156885A (ko) |
EP (1) | EP0455401B2 (ko) |
JP (1) | JP2756044B2 (ko) |
KR (1) | KR100553140B1 (ko) |
CA (1) | CA2035294C (ko) |
DE (1) | DE69120864T3 (ko) |
Cited By (1)
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KR101274042B1 (ko) | 2006-12-19 | 2013-06-12 | 서울반도체 주식회사 | 형광체, 이의 제조 방법 및 발광 다이오드 |
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- 1991-01-30 CA CA002035294A patent/CA2035294C/en not_active Expired - Lifetime
- 1991-04-23 DE DE69120864T patent/DE69120864T3/de not_active Expired - Lifetime
- 1991-04-23 EP EP91303636A patent/EP0455401B2/en not_active Expired - Lifetime
- 1991-04-24 KR KR1019910006896A patent/KR100553140B1/ko not_active IP Right Cessation
- 1991-04-24 JP JP3094179A patent/JP2756044B2/ja not_active Expired - Lifetime
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KR101274042B1 (ko) | 2006-12-19 | 2013-06-12 | 서울반도체 주식회사 | 형광체, 이의 제조 방법 및 발광 다이오드 |
Also Published As
Publication number | Publication date |
---|---|
DE69120864T2 (de) | 1997-02-06 |
US5418062A (en) | 1995-05-23 |
KR910018517A (ko) | 1991-11-30 |
CA2035294A1 (en) | 1991-10-26 |
EP0455401B2 (en) | 2002-10-30 |
US5439705A (en) | 1995-08-08 |
DE69120864T3 (de) | 2003-07-10 |
EP0455401B1 (en) | 1996-07-17 |
JP2756044B2 (ja) | 1998-05-25 |
CA2035294C (en) | 2003-05-20 |
EP0455401A2 (en) | 1991-11-06 |
EP0455401A3 (en) | 1992-03-18 |
JPH04230996A (ja) | 1992-08-19 |
US5156885A (en) | 1992-10-20 |
DE69120864D1 (de) | 1996-08-22 |
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