公开(公告)号：KR100336973B1

公开(公告)日：2002-05-17

申请号：KR1019990038203

申请日：1999-09-08

Applicant: 한국화학연구원

Inventor： 박희동 ,  류호진 ,  박정규

IPC: C09K11/08

CPC classification number: C09K11/7703

Abstract: 본발명은저전압용티탄산스트론튬계적색형광체및 이의제조방법에관한것으로서, 더욱상세하게는티탄산스트론튬(SrTiO)을모체로하는적색형광체에있어활성제로염화프라세오디움을첨가하고, 공부활제로수산화알루미늄과산화갈륨을첨가함으로써, 저속전자선에서발광휘도와색순도가우수하고고진공에서도안정한물성을가지며, 특히저전압전자선여기에의해구동하는전계방출디스플레이(Field Emission Displays, FEDs)에적합하도록고휘도를갖는다음화학식 1로표시되는저전압용티탄산스트론튬계적색형광체및 이의제조방법에관한것이다. 상기화학식 1에서 : 0.0005≤a≤0.01, 0

公开(公告)号：KR1020010026774A

公开(公告)日：2001-04-06

申请号：KR1019990038203

申请日：1999-09-08

Applicant: 한국화학연구원

Inventor： 박희동 ,  류호진 ,  박정규

IPC: C09K11/08

CPC classification number: C09K11/7703

Abstract: PURPOSE: A red fluorescent body of strontium titanic acid(SrTiO3) used for low-voltage condition is provided which has an excellent color purity, stability even under the high vacuum pressure, and in particular high luminescence so as to be suitably used in a field emission displays(FEDs), by comprising praseodymium chloride as an activator and aluminium hydroxide or gallium oxide as a co-activator in a red fluorescent body having a strontium titanic acid as a parent body. CONSTITUTION: A red fluorescent body of strontium titanic acid is produced by: adding praseodymium chloride as an activator and aluminium hydroxide(Al(OH)3) or gallium oxide(Ga2O3) as a co-activator to strontium titanic acid, which comprises strontium carbonate and titanium dioxide as a fluorescent material; mixing and drying them well; and sintering the resulted mixture at 1000-1400 deg.C and grinding it. Thus produced fluorescent body having high luminescence is suitably used for a field emission displays operated by excitation with low voltage electric rays.

Abstract translation: 目的：提供用于低电压条件的锶钛酸锶（SrTiO3）的红色荧光体，即使在高真空压力下也具有优异的色纯度，稳定性，特别是高发光度，以适用于现场 发光显示器（FED），其包含氯化镨作为活化剂，氢氧化铝或氧化镓作为共活化剂，在具有钛酸锶作为母体的红色荧光体中。 构成：钛酸锶的红色荧光体通过以下方式制备：将氯化镨作为活化剂和氢氧化铝（Al（OH）3）或氧化镓（Ga 2 O 3）作为助催化剂加入到钛酸锶中，钛酸锶包括碳酸锶 和二氧化钛作为荧光材料; 混合并干燥好; 并将所得混合物在1000-1400℃下烧结并研磨。 因此，具有高发光性的荧光体适合用于通过低压电光激发而进行的场发射显示。

公开(公告)号：KR1020000025940A

公开(公告)日：2000-05-06

申请号：KR1019980043244

申请日：1998-10-15

Applicant: 한국화학연구원

Inventor： 박희동 ,  류호진 ,  박정규

IPC: C09K11/77 ,  C09K11/08

CPC classification number: C09K11/7769 ,  C04B35/50 ,  C04B35/62655 ,  C04B35/64 ,  C04B2235/3232 ,  Y02B20/181

Abstract: PURPOSE: A red color phosphor prepared by adding aluminum hydroxide and praseodymium to lanthanum titanate is provided which has a high luminance and excellent color purity at a low velocity electron tube and stable physical properties under high vacuum. CONSTITUTION: A lanthanum titanate red color fluorescent body of the formula;La2TixOy:aPr,bAl is prepared by mixing as a matrix lanthanum titanate with praseodymium(Pr) and aluminum hydroxide(Al) in a molar ration of Pr/Al of 0.001 : 0.02-0.03 : 0.23, drying and calcining at 1,100-1,500°C. In formula, x is greater than or equal 2 less than or equal 3, y is greater than or equal 7 less than or equal 9,a is greater than or equal 0.0005 less than or equal 0.0004, b is greater than 0 less than 0.3. The phosphor has a high luminance suitable to a field emission display(FED) under excitation with low velocity electron beam having an acceleration voltage as low as 1KV or less.

Abstract translation: 目的：提供通过向钛酸镧中加入氢氧化铝和镨制备的红色荧光粉，其在低速电子管下具有高亮度和优异的色纯度，在高真空下具有稳定的物理性能。 构成：钛酸镧红色荧光体，其配方为La2TixOy：aPr，bAl，通过混合为镧（Pr）和氢氧化铝（Al）的镧钛酸镧与Pr / Al摩尔比为0.001：0.02 -0.03：0.23，干燥并在1100-1,500℃下煅烧。 在式中，x大于或等于2小于或等于3，y大于或等于7小于或等于9，a大于或等于0.0005小于或等于0.0004，b大于0小于0.3 。 在具有低至1KV或更低的加速电压的低速电子束的激发下，荧光体具有适合于场发射显示（FED）的高亮度。