US 9,809,744 B2
Fluoride phosphor composite, method of manufacturing fluoride phosphor composite, white light emitting apparatus, display apparatus, lighting device, and electronic device
Ji Ho You, Seoul (KR); In Hyung Lee, Hanam-si (KR); Tae Hoon Kim, Suwon-si (KR); Jong Won Park, Seoul (KR); Chul Soo Yoon, Suwon-si (KR); and Chi Woo Lee, Cheonan-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Samsung-ro, Yeongtong-gu, Suwon-si Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Dec. 9, 2015, as Appl. No. 14/963,268.
Claims priority of application No. 10-2014-0175659 (KR), filed on Dec. 9, 2014.
Prior Publication US 2016/0160122 A1, Jun. 9, 2016
Int. Cl. B32B 5/16 (2006.01); C09K 11/57 (2006.01); C09K 11/61 (2006.01); C09K 11/02 (2006.01)
CPC C09K 11/617 (2013.01) [C09K 11/025 (2013.01); C09K 11/57 (2013.01); C09K 11/61 (2013.01); Y02B 20/181 (2013.01)] 20 Claims
OG exemplary drawing
1. A fluoride phosphor composite comprising:
a fluoride phosphor core particle expressed by an empirical formula of AxMFy:Mn4+,
wherein, in the empirical formula, A is at least one selected from the group consisting of Li, Na, K, Rb, and Cs, M is at least one selected from the group consisting of Si, Ti, Zr, Hf, Ge, and Sn, a composition ratio (x) of A satisfies 2≤x≤3, a composition ratio (y) of F satisfies 4≤y≤7,
the fluoride phosphor core particle is coated with a Mn-free fluoride coating, and the Mn-free fluoride coating has a thickness less than or equal to 35% of the size of the fluoride phosphor composite,
wherein the Mn-free fluoride coating includes a fluoride expressed by an empirical formula of AxMFy.