[go: up one dir, main page]

JPS5682876A - Fluorescent substance and its preparation - Google Patents

Fluorescent substance and its preparation

Info

Publication number
JPS5682876A
JPS5682876A JP16032479A JP16032479A JPS5682876A JP S5682876 A JPS5682876 A JP S5682876A JP 16032479 A JP16032479 A JP 16032479A JP 16032479 A JP16032479 A JP 16032479A JP S5682876 A JPS5682876 A JP S5682876A
Authority
JP
Japan
Prior art keywords
fluorescent substance
gram
earth metal
alkaline earth
activated
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP16032479A
Other languages
Japanese (ja)
Other versions
JPS5649960B2 (en
Inventor
Hiroyuki Kasano
Koichi Megumi
Akira Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16032479A priority Critical patent/JPS5682876A/en
Priority to DE8080304489T priority patent/DE3069191D1/en
Priority to EP80304489A priority patent/EP0030853B1/en
Publication of JPS5682876A publication Critical patent/JPS5682876A/en
Publication of JPS5649960B2 publication Critical patent/JPS5649960B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Luminescent Compositions (AREA)

Abstract

PURPOSE: To obtain a fluorescent substance suitable for a color cathode-ray tube, having improved brightness of green and red emission, by adding a specific amount of phosphorus to an alkaline earth metal sulfide fluorescent substance activated with Eu2+ and Ce3+ in the presence of a halogen element, and heating the mixture.
CONSTITUTION: (D) 100W10,000ppm phosphorus is added to (B) an alkaline earth metal sulfide fluorescent substance, preferably CaS, SrS, BaS, MgS or (Ga. Sr)S, activated with (A) Eu2+, Ce3+ or Eu2+ and Ce3+ in the presence of (C) a halogen element, preferably Cl, Br or I, and the resultant mixture is heated, preferably at 1,000W1,400°C, to give the aimed fluorescent substance. The amounts of the components (A) and (C) are 10-5W10-2 gram-atom and 10-5W10-1 gram- atom per mol the component (B) respectively.
COPYRIGHT: (C)1981,JPO&Japio
JP16032479A 1979-12-12 1979-12-12 Fluorescent substance and its preparation Granted JPS5682876A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP16032479A JPS5682876A (en) 1979-12-12 1979-12-12 Fluorescent substance and its preparation
DE8080304489T DE3069191D1 (en) 1979-12-12 1980-12-12 Phosphor and method of manufacturing the phosphor
EP80304489A EP0030853B1 (en) 1979-12-12 1980-12-12 Phosphor and method of manufacturing the phosphor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16032479A JPS5682876A (en) 1979-12-12 1979-12-12 Fluorescent substance and its preparation

Publications (2)

Publication Number Publication Date
JPS5682876A true JPS5682876A (en) 1981-07-06
JPS5649960B2 JPS5649960B2 (en) 1981-11-26

Family

ID=15712492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16032479A Granted JPS5682876A (en) 1979-12-12 1979-12-12 Fluorescent substance and its preparation

Country Status (1)

Country Link
JP (1) JPS5682876A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61168896A (en) * 1985-01-22 1986-07-30 シャープ株式会社 Manufacturing method of thin film light emitting device
JPS6212093A (en) * 1985-07-09 1987-01-21 シャープ株式会社 Thin film light emitting element
JPS62122096A (en) * 1985-11-21 1987-06-03 シャープ株式会社 thin film light emitting device
US6379584B1 (en) * 1999-03-24 2002-04-30 Sarnoff Corporation Long persistence alkaline earth sulfide phosphors
JP2003064357A (en) * 2001-08-30 2003-03-05 Futaba Corp Fluorescent substance, method for producing fluorescent substance layer and fluorescent display tube
JP2007031549A (en) * 2005-07-26 2007-02-08 National Univ Corp Shizuoka Univ Red phosphor, method for producing red phosphor, and EL element
JP2009055052A (en) * 2001-11-14 2009-03-12 Sarnoff Corp Light emitting device
WO2014021006A1 (en) 2012-07-30 2014-02-06 住友金属鉱山株式会社 Alkaline earth metal silicate phosphor and method for producing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2753723B2 (en) * 1989-02-28 1998-05-20 株式会社小松製作所 Red EL element

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61168896A (en) * 1985-01-22 1986-07-30 シャープ株式会社 Manufacturing method of thin film light emitting device
JPS6212093A (en) * 1985-07-09 1987-01-21 シャープ株式会社 Thin film light emitting element
JPS62122096A (en) * 1985-11-21 1987-06-03 シャープ株式会社 thin film light emitting device
US6379584B1 (en) * 1999-03-24 2002-04-30 Sarnoff Corporation Long persistence alkaline earth sulfide phosphors
JP2003064357A (en) * 2001-08-30 2003-03-05 Futaba Corp Fluorescent substance, method for producing fluorescent substance layer and fluorescent display tube
JP2009055052A (en) * 2001-11-14 2009-03-12 Sarnoff Corp Light emitting device
JP2007031549A (en) * 2005-07-26 2007-02-08 National Univ Corp Shizuoka Univ Red phosphor, method for producing red phosphor, and EL element
WO2014021006A1 (en) 2012-07-30 2014-02-06 住友金属鉱山株式会社 Alkaline earth metal silicate phosphor and method for producing same
US9938459B2 (en) 2012-07-30 2018-04-10 Sumitomo Metal Mining Co., Ltd Alkaline earth metal silicate phosphor and method for producing same

Also Published As

Publication number Publication date
JPS5649960B2 (en) 1981-11-26

Similar Documents

Publication Publication Date Title
JPS5682876A (en) Fluorescent substance and its preparation
GB1177316A (en) Fluorescent Phosphor
JPS528992A (en) Fluorescent substance
JPS53119287A (en) Fluorescent substance
GB1205319A (en) Luminescent materials
JPS5535422A (en) Fluorescent lamp
JPS5224172A (en) Fluorescent substance of cathode-ray tube
JPS56110780A (en) Fluorescent substance
JPS57109888A (en) Fluorescent lamp
JPS56104989A (en) Phosphor
JPS5323175A (en) Fluorescent lamp
JPS5543725A (en) Fluorescent lamp
JPS52144386A (en) Production of blue fluorescent substance
JPS56109280A (en) Calcium halophosphate fluorescent substance
JPS5583132A (en) Blue luminous fluorescent member and color televison braun tube
JPS5670084A (en) Fluorescent substance
JPS5498069A (en) Fluorescent lamp
JPS6454093A (en) Phosphor
JPS5682878A (en) Prparation of fluorescent substance
JPS57174380A (en) Green light-emitting fluorescent film for cathode-ray tube
JPS57125285A (en) Preparation of fluorescent substance
JPS534785A (en) White luminous fluorescent substance and braun tube using that
JPS51116187A (en) A fluorescent substance
JPS57128779A (en) Fluorescent substance
JPS5620083A (en) High-efficient phosphor composition