LUMINESCENT PARTICLE, MATERIALS AND PRODUCTS INCLUDING SAME, AND METHODS

• US 20170066963A1
• Filed: 05/19/2016
• Published: 03/09/2017
• Est. Priority Date: 11/19/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: QD Vision, Inc. (Samsung Electronics Co. Ltd.)
• Inventors: NICK, ROBERT J.
• Granted Patent: US 10,221,354 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C03B 19/102 by blowing a gas onto a stream of molten glass or onto particulate materials, e.g. pulverising
• CPC Class Codes: C03B 19/106 by chemical vapour deposition; by liquid phase reaction
• CPC Class Codes: C03C 14/006 the non-glass component being in the form of microcrystallites, e.g. of optically or electrically active material
• CPC Class Codes: C03C 17/02 with glass C03C17/34, C03C17/44 take precedence
• CPC Class Codes: C03C 3/04 containing silica
• CPC Class Codes: C03C 4/12 for luminescent glass; for fluorescent glass
• CPC Class Codes: C09K 11/02 Use of particular materials as binders, particle coatings or suspension media therefor
• CPC Class Codes: C09K 11/025 non-luminescent particle coatings or suspension media
• CPC Class Codes: C09K 11/08 containing inorganic luminescent materials
• CPC Class Codes: H01L 33/502 Wavelength conversion materials
• CPC Class Codes: H01L 33/56 Materials, e.g. epoxy or silicone resin

Abstract

A luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive materials is disclosed. Preferably the surface comprises a vitrified glass. Methods form making a luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive materials is also disclosed. Compositions and products including a luminescent particle are further disclosed.

Claims

1-5. -5. (canceled)

6. A luminescent particle including a surface comprising glass that surrounds one or more particles of one or more light emissive nanomaterials.

7. A luminescent particle in accordance with claim 6 wherein the luminescent particle comprises one or more particles of one or more light emissive nanomaterials distributed in glass.

8. A luminescent particle in accordance with claim 6 wherein at least one of the light emissive nanomaterials comprises quantum dots.

9. A luminescent particle in accordance with claim 6 wherein at least one of the light emissive nanomaterials comprises a nanophosphor.

10. A luminescent particle in accordance with claim 6 wherein the glass comprises a vitrified metal oxide.

11. A luminescent particle in accordance with claim 6 wherein the glass comprises a vitrified fumed metal oxide.

12. A luminescent particle in accordance with claim 10 wherein the glass is formed by pyrolysis.

13. A luminescent particle in accordance with claim 6 wherein the glass comprises a silica glass.

14. A luminescent particle in accordance with claim 6 wherein the glass is free or substantially free of graphitization by-products.

31. A light emitting device comprising a luminescent particle in accordance with claim 6.

36. A luminescent particle in accordance with claim 6 wherein the particle has a smallest dimension in a range from about 5 nm to about 200 microns.

38. A luminescent particle in accordance with claim 6 wherein the particle includes two or more particles of one or more light emissive nanomaterials.

39. A luminescent particle in accordance with claim 38 wherein the glass coating is free or substantially free of graphitization by-products.

40. A luminescent particle in accordance with claim 6 wherein the coating comprises vitrified glass.

41. A luminescent particle in accordance with claim 6 wherein the particles are encapsulated in a host material and and the glass surrounds the encapsulated particles.

15-28. -28. (canceled)

29. A luminescent material comprising luminescent particles wherein a luminescent particle includes a surface comprising glass that surrounds one or more particles of one or more light emissive nanomaterials.

30. (canceled)

32-35. -35. (canceled)

37. (canceled)

42. (canceled)

43. (canceled)