US 11,655,415 B2
Nanophosphor-attached inorganic particles and wavelength conversion member
Tamio Ando, Otsu (JP); Tadahito Furuyama, Otsu (JP); and Shunsuke Fujita, Otsu (JP)
Assigned to NIPPON ELECTRIC GLASS CO., LTD., Shiga (JP)
Appl. No. 16/605,510
Filed by NIPPON ELECTRIC GLASS CO., LTD., Otsu (JP)
PCT Filed Jun. 4, 2018, PCT No. PCT/JP2018/021393
§ 371(c)(1), (2) Date Oct. 16, 2019,
PCT Pub. No. WO2018/235580, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. JP2017-119486 (JP), filed on Jun. 19, 2017.
Prior Publication US 2020/0123439 A1, Apr. 23, 2020
Int. Cl. C09K 11/02 (2006.01); C09K 11/62 (2006.01); C09K 11/64 (2006.01); C01F 5/02 (2006.01); C01F 7/02 (2022.01); C01G 9/02 (2006.01); C03C 3/16 (2006.01); C03C 3/247 (2006.01); C03C 14/00 (2006.01); C09K 11/70 (2006.01); C09K 11/74 (2006.01); C09K 11/75 (2006.01); C09K 11/88 (2006.01); H01L 33/50 (2010.01); B82Y 20/00 (2011.01)
CPC C09K 11/025 (2013.01) [C01F 5/02 (2013.01); C01F 7/02 (2013.01); C01G 9/02 (2013.01); C03C 3/16 (2013.01); C03C 3/247 (2013.01); C03C 14/004 (2013.01); C09K 11/62 (2013.01); C09K 11/64 (2013.01); C09K 11/70 (2013.01); C09K 11/7492 (2013.01); C09K 11/75 (2013.01); C09K 11/883 (2013.01); H01L 33/504 (2013.01); B82Y 20/00 (2013.01); C01P 2004/10 (2013.01); C01P 2004/32 (2013.01); C01P 2004/61 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A wavelength conversion member comprising:
nanophosphor-attached inorganic particles dispersed in a glass matrix; wherein
the nanophosphor-attached inorganic particles include:
inorganic particles having an average particle diameter of 1 μm or more, the inorganic particles being ceramic particles of oxides; and
a nanophosphor attached to outermost surfaces of the inorganic particles;
gaps are provided between the inorganic particles and the glass matrix, and the nanophosphor is located in the gaps; and
the inorganic particles are non-porous.