US 11,757,068 B2
Lighting module and lighting apparatus having thereof
Sa Rum Han, Seoul (KR); Dong Il Eom, Seoul (KR); and Young Hun Ryu, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Feb. 19, 2021, as Appl. No. 17/180,390.
Application 17/180,390 is a continuation of application No. 16/138,734, filed on Sep. 21, 2018, granted, now 10,957,825.
Claims priority of application No. 10-2017-0123558 (KR), filed on Sep. 25, 2017; and application No. 10-2018-0096012 (KR), filed on Aug. 17, 2018.
Prior Publication US 2021/0175395 A1, Jun. 10, 2021
Int. Cl. H01L 33/50 (2010.01); H01L 33/56 (2010.01); H01L 25/075 (2006.01); G02B 5/02 (2006.01)
CPC H01L 33/502 (2013.01) [G02B 5/0205 (2013.01); H01L 25/0753 (2013.01); H01L 33/56 (2013.01); H01L 33/507 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lighting module comprising:
a substrate;
a plurality of light emitting devices disposed on the substrate and emitting blue light;
a first resin layer disposed on the substrate and sealing the plurality of light emitting devices;
a first diffusion layer disposed directly on the first resin layer and including a phosphor and a diffusing agent; and
a second resin layer disposed directly on the first diffusion layer and including ink particles,
wherein the first resin layer is disposed on upper surfaces and side surfaces of the plurality of light emitting devices,
wherein a content of the phosphor included in the first diffusion layer is in a range of 10 wt % to 23 wt % in resin material of the first diffusion layer, and a content of the diffusing agent is less than 3 wt % in resin material of the first diffusion layer, and
wherein a color of the ink particles corresponds to a color of wavelength-converted light outputted by the phosphor in the first diffusion layer, and the ink particles in the second resin layer block incident light.