US 11,747,673 B2
White light emitting device and display device using the same
Jong Pil Jeon, Goyang-si (KR); Jong-hoi Kim, Suwon-si (KR); Kye Hoon Lee, Yongin-si (KR); Dae-hee Lee, Hwaseong-si (KR); Byoung-jin Cho, Anyang-si (KR); and Suk-ju Choi, Jeonju-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jan. 5, 2023, as Appl. No. 18/150,654.
Application 18/150,654 is a continuation of application No. 17/365,701, filed on Jul. 1, 2021, granted, now 11,579,485.
Application 17/365,701 is a continuation of application No. 16/723,520, filed on Dec. 20, 2019, granted, now 11,112,648, issued on Sep. 7, 2021.
Application 16/723,520 is a continuation of application No. 14/958,453, filed on Dec. 3, 2015, granted, now 10,545,375, issued on Jan. 28, 2020.
Claims priority of application No. 10-2014-0171973 (KR), filed on Dec. 3, 2014; and application No. 10-2015-0092852 (KR), filed on Jun. 30, 2015.
Prior Publication US 2023/0146908 A1, May 11, 2023
Int. Cl. G02F 1/13357 (2006.01); F21K 9/64 (2016.01); F21Y 115/10 (2016.01); G02F 1/1335 (2006.01)
CPC G02F 1/133603 (2013.01) [F21K 9/64 (2016.08); G02F 1/133606 (2013.01); G02F 1/133609 (2013.01); F21Y 2115/10 (2016.08); G02F 1/133614 (2021.01); H01L 2224/1403 (2013.01); H01L 2224/16225 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A light emitting device comprising:
a board;
a reflective sheet disposed on the board;
a plurality of light sources disposed on the board, each light source of the plurality of light sources including a light emitting diode configured to emit blue light; and
a plurality of phosphor members provided on the reflective sheet to surround the light emitting diode of each light source of the plurality of light sources, each of the plurality of phosphor members configured to convert at least part of blue light being incident on the plurality of phosphor members to light of a color different from blue,
wherein the plurality of light sources comprise a first light source, a second light source adjacent to the first light source in a row direction, and a third light source adjacent to the second light source in a column direction;
wherein the plurality of phosphor members comprise a plurality of first phosphor members provided on the reflective sheet to surround the first light source, a plurality of second phosphor members provided on the reflective sheet to surround the second light source and a plurality of third phosphor members provided on the reflective sheet to surround the third light source, and
wherein a number of the plurality of first phosphor members is the same as a number of the plurality of second phosphor members, and the number of the plurality of first phosphor members is greater than a number of the plurality of third phosphor members.