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公开(公告)号：KR1020020054200A
公开(公告)日：2002-07-06
申请号：KR1020000083108
申请日：2000-12-27
Applicant: 한국화학연구원
IPC: C09K11/08
CPC classification number: C09K11/7728 , C04B35/50 , C04B35/62655 , C04B35/62675 , Y02B20/181
Abstract: PURPOSE: Provided is a method for producing a red phosphor based on gadolinium oxide which shows excellent luminous brightness in low-speed electronic tube and stable physical property even under high vacuum, and which is suitable for field emission display(FED) excellent in color purity. CONSTITUTION: The method comprises the steps of (i) weighing europium oxide(Eu2O3) as activating agent into gadolinium oxide(Gd2O3) phosphor matrix in a predetermined ratio according to desired composition; (ii) mixing the compounds in the presence of acetone solvent using ball milling or mortar mixer, introducing the mixture into oven and drying the mixture at 100-150 deg.C; and (iii) heat treating the dried mixture at 800-1500 deg.C using electric furnace in high purity alumina boat under reduction atmosphere using 2-30% hydrogen containing mixed gas. The phosphor is represented by formula 1: Gd2O3:Eux(wherein 0.005
Abstract translation: 目的：提供一种生产基于氧化钆的红色荧光体的方法，其在低速电子管中显示出优异的发光亮度，并且即使在高真空下也具有稳定的物理性能，并且适用于色纯度优异的场致发射显示（FED） 。 构成：该方法包括以下步骤：（i）根据所需组成以预定比例将氧化铕（Eu 2 O 3）作为活化剂称量到氧化钆（Gd 2 O 3）荧光体基质中; （ii）使用球磨或砂浆混合器在丙酮溶剂存在下混合化合物，将混合物引入烘箱中并在100-150℃干燥该混合物; 和（iii）使用2-30％含氢混合气体在还原气氛下，使用高纯氧化铝舟皿的电炉在800-1500℃下对干燥的混合物进行热处理。 荧光体由式1表示：Gd 2 O 3：Eux（其中0.005 <= x <= 1.0）。
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公开(公告)号：KR100704492B1
公开(公告)日：2007-04-09
申请号：KR1020050036612
申请日：2005-05-02
Applicant: 한국화학연구원
CPC classification number: H01L33/504 , C09K11/7731 , C09K11/7734 , C09K11/7786 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/48465 , H01L2224/49107 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , H05B33/14 , Y02B20/181 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
Abstract: 본 발명은 형광체를 이용한 백색 발광 다이오드(LED:Light Emitting Diode) 의 제조 방법에 관한 것으로서, 패키징 기판을 이용한 자외선 발광 LED칩에 적색, 청색, 녹색 등 삼색 혼합의 형광 물질을 입힌 뒤, 자외선 발광 LED칩으로부터 발광하는 자색 광이 적색, 청색, 녹색 등 삼파장이 혼합된 형광체면에 투과되도록 함으로써, 백색광이 만들어질 수 있도록 하거나; 또는 청색 발광 LED칩에 녹색 및 적색, 혹은 황색 및 적색 형광 물질을 적층시킨 뒤, LED칩으로부터의 청색광의 투과 및 형광체의 흡수에 의한 발광 현상으로 인하여 백색광이 만들어질 수 있도록 한 형광체를 이용한 백색 발광다이오드의 제조 방법을 제공하고자 한 것이다.
이러한 본 발명의 제조 방법에 의하면, 단일칩을 이용하여 보다 우수한 발광효율을 갖는 백색 발광 다이오드를 제공할 수 있는 장점이 있다.
백색 발광다이오드, 적색, 청색, 녹색, 형광체 물질, 자외선 발광 LED칩, 청색 발광 LED칩-
公开(公告)号：KR1020060134728A
公开(公告)日：2006-12-28
申请号：KR1020050054642
申请日：2005-06-23
Applicant: 한국화학연구원
Abstract: Provided are a novel strontium magnesium silicate-based blue phosphor which is excellent in color purity, can be heat treated at a low temperature and is applied to UV LED, and its preparation method. The strontium magnesium silicate-based blue phosphor is represented by (3-x-y)SrOÀxA_(a,b)OÀMgOÀSi2O8:Eu_y^2+, wherein A is Ba, Ca or their mixture; 0
Abstract translation: 提供了一种新颖的硅酸锶硅酸盐基蓝色荧光体，其色纯度优异，可以在低温下进行热处理并应用于UV LED及其制备方法。 锶硅酸镁基蓝色荧光体由（3-x-y）SrO-xA（a，b）O-MgOSiSiO8：Eu_y ^ 2 +表示，其中A是Ba，Ca或它们的混合物; 0 <= X <1; 0.005
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公开(公告)号：KR100655915B1
公开(公告)日：2006-12-11
申请号：KR1020050041312
申请日：2005-05-17
Applicant: 한국화학연구원
IPC: C09K11/84
Abstract: 본 발명은 알칼리 토금속 티오갈레이트계 형광체의 제조 방법에 관한 것으로, 더욱 상세하게는 알칼리 토금속, 갈륨 및 활성제 금속을 일정 성분비로 혼합하여 제조된 혼합 금속 수용액과 황화물 침전제를 특정의 pH하에서 공침하여 티오갈레이트계 형광체 전구체를 제조하고, 상기에서 제조된 티오갈레이트계 형광체 전구체를 질소와 수소의 혼합 가스 분위기 하에서 열처리하는 신규 공정의 도입으로, 종래에 비해 낮은 온도에서 열처리가 가능하여 온도 저하를 위한 융제 사용 및 독성 성분의 사용이 배제된 조건에서 우수한 발광성을 갖는 알칼리 토금속 티오갈레이트계 형광체의 제조 방법에 관한 것이다.
티오갈레이트, 알칼리 토금속, 형광체-
公开(公告)号：KR1020060114488A
公开(公告)日：2006-11-07
申请号：KR1020050036612
申请日：2005-05-02
Applicant: 한국화학연구원
CPC classification number: H01L33/504 , C09K11/7731 , C09K11/7734 , C09K11/7786 , H01L2224/45144 , H01L2224/48091 , H01L2224/48247 , H01L2224/48257 , H01L2224/48465 , H01L2224/49107 , H01L2224/73265 , H01L2224/8592 , H01L2924/181 , H05B33/14 , Y02B20/181 , H01L2924/00014 , H01L2924/00 , H01L2924/00012
Abstract: A method for manufacturing a white light emitting diode using a phosphor is provided to improve light emitting efficiency in one chip by using phosphors of two or more colors laminated on an LED. An LED comprises an LED chip(10) adhered to a mounting plated of a lead frame(60) through an Ag paste(20), an Au wire(40) for connecting the lead frame to each electrode of the LED chip, and a transparent resin for protecting the LED chip and the Au wire. The LED chip includes an ultra violet LED chip and a blue LED chip. A three color(Red, Blue, and Green) mixed phosphor is applied on the ultra violet LED chip to generate a white light. Green and red phosphors, or yellow and red phosphors are laminated on the blue LED chip to generate the white light.
Abstract translation: 提供一种使用荧光体制造白色发光二极管的方法，通过使用层叠在LED上的两种或更多种颜色的荧光体来提高一个芯片的发光效率。 LED包括通过Ag膏（20）粘附到引线框架（60）的安装电镀的LED芯片（10），用于将引线框架连接到LED芯片的每个电极的Au线（40），以及 透明树脂，用于保护LED芯片和Au线。 LED芯片包括紫外LED芯片和蓝色LED芯片。 在紫外LED芯片上施加三色（红，蓝，绿）混合荧光粉以产生白光。 绿色和红色荧光体，或黄色和红色磷光体层压在蓝色LED芯片上以产生白光。
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Patent Agency Ranking
公开(公告)号：KR1020060034055A
公开(公告)日：2006-04-21
申请号：KR1020040083187
申请日：2004-10-18
Applicant: 엘지이노텍 주식회사 , 한국화학연구원
CPC classification number: C09K11/7734 , H01L33/502 , H01L2224/48247 , H01L2224/48257 , H01L2224/49107 , H01L2224/8592 , H01L2924/181 , H05B33/14 , Y02B20/181 , H01L2924/00012
Abstract: 본 발명은 400 ~ 480nm영역에 발광 스펙트럼의 주피크를 가진 화합물 반도체에서 발생되는 광에 의하여 여기되어 500 ~ 600nm 영역에 주피크를 갖는 Sr
4-ｘ Mg
ｙ Ba
ｚ Si
2 O
8 :Eu
2+
ｘ (0＜ｘ＜1, 0 ≤ｙ≤1, 0 ≤ｚ≤1)의 화학식을 갖는 발광소자의 몰드 물질에 포함되는 것을 특징으로 하는 형광체 및 상기 형광체를 이용한 발광소자에 관한 것이다.
본 발명에 의하면 보다 낮은 색온도 및 높은 연색성지수를 갖는 백색 발광 다이오드를 제공할 수 있으며, 또한 본 발명에 따른 실리케이트계 형광체에 포함되는 활성제의 농도를 변화시킴으로써 발광 휘도 감소 없이 발광 주피크를 변화시킴으로써 색좌표 및 색온도, 연색성 지수의 제어를 가능하게 한다.
형광체, 발광소자, 백색 발광다이오드-
公开(公告)号：KR1020030064099A
公开(公告)日：2003-07-31
申请号：KR1020020004542
申请日：2002-01-25
Applicant: 한국화학연구원
IPC: C09K11/74
CPC classification number: C09K11/7709 , C09K11/7708 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A YRO4-based (R is As, Nb, P, V) blue fluorescent substance for a plasma display panel and its preparation method are provided, wherein the blue fluorescent substance has an excellent luminance efficiency at VUV and a good color purity and the luminance intensity of blue fluorescent substance can be controlled according to the composition of an activator and the composition. CONSTITUTION: The YRO4-based blue fluorescent substance is represented by Y(NbmP1-m-nVn)O4, wherein 0.02
Abstract translation: 目的：提供一种用于等离子体显示面板的YRO4基（R为As，Nb，P，V）蓝色荧光物质及其制备方法，其中蓝色荧光物质在VUV下具有优异的发光效率和良好的色纯度， 可以根据活化剂的组成和组成控制蓝色荧光物质的亮度强度。 构成：基于YRO4的蓝色荧光物质由Y（NbmP1-m-nVn）O4表示，其中0.02
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公开(公告)号：KR100369709B1
公开(公告)日：2003-01-29
申请号：KR1020000083108
申请日：2000-12-27
Applicant: 한국화학연구원
IPC: C09K11/08
Abstract: PURPOSE: Provided is a method for producing a red phosphor based on gadolinium oxide which shows excellent luminous brightness in low-speed electronic tube and stable physical property even under high vacuum, and which is suitable for field emission display(FED) excellent in color purity. CONSTITUTION: The method comprises the steps of (i) weighing europium oxide(Eu2O3) as activating agent into gadolinium oxide(Gd2O3) phosphor matrix in a predetermined ratio according to desired composition; (ii) mixing the compounds in the presence of acetone solvent using ball milling or mortar mixer, introducing the mixture into oven and drying the mixture at 100-150 deg.C; and (iii) heat treating the dried mixture at 800-1500 deg.C using electric furnace in high purity alumina boat under reduction atmosphere using 2-30% hydrogen containing mixed gas. The phosphor is represented by formula 1: Gd2O3:Eux(wherein 0.005
Abstract translation: 目的：提供一种基于氧化钆的红色荧光体的制造方法，其在低速电子管中显示优异的发光亮度，并且即使在高真空下也具有稳定的物理性质，并且适用于颜色纯度优异的场发射显示器（FED） 。 构成：该方法包括以下步骤：（i）根据所需组成，将氧化铕（Eu 2 O 3）作为活化剂称重入氧化钆（Gd 2 O 3）荧光体基质中; （ii）使用球磨或砂浆混合器在丙酮溶剂存在下混合化合物，将混合物引入烘箱并在100-150℃干燥混合物; （iii）在800-1500℃下，使用电炉在高纯氧化铝舟中在还原气氛下使用2-30％含氢混合气体对干燥混合物进行热处理。 该荧光体由式1表示：Gd 2 O 3：Eux（其中0.005≤x≤1.0）。
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公开(公告)号：KR1020060131524A
公开(公告)日：2006-12-20
申请号：KR1020050052031
申请日：2005-06-16
Applicant: 한국화학연구원
IPC: C09K11/71
Abstract: Provided is a method for preparing red phosphor based on sulfide of alkali earth metal having improved luminous property at the condition excluding solvent and noxious ingredient for decreasing a temperature, in which heating is achieved at lower temperature than conventional method. The method comprises the steps of (1) dispersing an acid solution containing 0.5-0.9999 mole of alkali earth metal precursor and 0.0001-0.5 mole of europium precursor dissolved therein, into distilled water to prepare an aqueous solution of metal mixture, (2) adding an aqueous solution of sulfate and sulfide of metal of period 3 in elements periodic table to the aqueous solution of metal mixture, adjusting a pH of the solution to 5-10, and filtrating and drying the solution to prepare a precursor of phosphor based on sulfide alkali earth metal sulfide, and (3) heating the precursor at 600-1000 deg.C at the atmosphere of mixture of nitrogen and hydrogen gases.
Abstract translation: 本发明提供一种制备基于硫酸盐的碱土金属硫化物的方法，其在除了溶剂和有害成分之外的条件下具有改善的发光性能，用于降低温度，其中在比常规方法更低的温度下实现加热。 该方法包括以下步骤：（1）将含有0.5-0.9999摩尔碱土金属前体和0.0001-0.5摩尔溶解在其中的铕前体的酸溶液分散到蒸馏水中以制备金属混合物的水溶液，（2）加入 元素周期表中周期3的金属硫酸盐和硫化物水溶液与金属混合物的水溶液，将溶液的pH调节至5-10，并过滤并干燥溶液以制备基于硫化物的磷光体前体 碱土金属硫化物，和（3）在氮气和氢气混合气氛下在600-1000℃加热前体。
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公开(公告)号：KR1020060131523A
公开(公告)日：2006-12-20
申请号：KR1020050052030
申请日：2005-06-16
Applicant: 한국화학연구원
IPC: C09K11/71
Abstract: Provided is a method for preparing a red phosphor based sulfide of alkali earth metal by coprecipitation and pH control, which does not use a separate flux for decreasing a temperature, and uses a mixture of hydrogen and nitrogen in place of noxious gases such as H2S or CS2, and thus is expected to have environmentally and economically excellences. The method comprises the steps of (i) dissolving 0.5-0.9999 mole of precursor of alkali earth metal and 0.0001-0.5 mole of europium precursor into acid to obtain an acidic solution, dispersing the acidic solution into C1-C5 alcohol, and adjusting a pH of the solution to 3-5 to prepare a mixed metal solution, (ii) introducing an aqueous solution of sulfate and sulfide of period 3 metal having pH 8-10 to the mixed metal solution, to adjust a pH to 6-8, and then filtrating and drying the solution to prepare a precursor of phosphor based on alkali earth metal sulfide, and (iii) heating the precursor of phosphor at 600-1000 deg.C at the atmosphere of mixture of nitrogen and hydrogen gases.
Abstract translation: 本发明提供了一种通过共沉淀和pH控制制备红色荧光体的碱土金属硫化物的方法，其不使用单独的助熔剂来降低温度，并且使用氢和氮的混合物代替有害气体如H 2 S或 CS2，因此预期在环境和经济上都是优秀的。 该方法包括以下步骤：（i）将0.5-0.9999摩尔碱土金属前体和0.0001-0.5摩尔铕前体溶解在酸中，得到酸性溶液，将酸性溶液分散在C1-C5醇中，并调节pH 的溶液至3-5以制备混合金属溶液，（ii）将pH8-10的第3期金属的硫酸盐和硫化物水溶液引入混合金属溶液中，将pH调节至6-8， 然后过滤并干燥溶液以制备基于碱土金属硫化物的荧光体前体，和（iii）在氮和氢气混合气氛下在600-1000摄氏度加热磷光体前体。
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