US 12,191,428 B2
Lighting module and lighting device comprising same
Hoon Park, Seoul (KR); Sa Rum Han, Seoul (KR); and Dong Il Eom, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/440,276
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Mar. 18, 2020, PCT No. PCT/KR2020/003693
§ 371(c)(1), (2) Date Sep. 17, 2021,
PCT Pub. No. WO2020/197158, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0032949 (KR), filed on Mar. 22, 2019; and application No. 10-2019-0112123 (KR), filed on Sep. 10, 2019.
Prior Publication US 2022/0158048 A1, May 19, 2022
Int. Cl. H01L 33/58 (2010.01); H01L 25/075 (2006.01); H01L 33/50 (2010.01); H01L 33/52 (2010.01); F21S 43/10 (2018.01)
CPC H01L 33/58 (2013.01) [H01L 25/0753 (2013.01); H01L 33/50 (2013.01); H01L 33/52 (2013.01); F21S 43/10 (2018.01); H01L 2933/0091 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a lighting module emitting a first light and a second light;
a housing disposed to surround side surfaces of the lighting module and coupled to the lighting module; and
a lens disposed on the lighting module to block light of a shorter wavelength among the first light and the second light and to transmit light of a longer wavelength among the first light and the second light,
wherein the lighting module includes:
a substrate;
a plurality of light emitting devices disposed on the substrate and emitting the first light;
a resin layer covering the plurality of light emitting devices and disposed on the substrate; and
a phosphor layer disposed on the resin layer and converting the first light into the second light,
wherein the resin layer seals the plurality of light emitting devices and is in contact with an upper surface and side surfaces of each of the light emitting devices,
wherein the first and second light travel through the phosphor layer a direction of the lens,
wherein the second light transmits through the lens,
wherein the resin layer is disposed between the plurality of light emitting devices and the phosphor layer,
wherein the phosphor layer is disposed to cover all outside side surfaces of the resin layer and an upper surface of the resin layer such that the resin layer is enclosed by the phosphor layer and the substrate,
wherein a content of red phosphor of the phosphor layer is 2% or more and 10% or less with respect to a weight of the phosphor layer,
wherein the housing is disposed on a side surface of the lens, and the lens is coupled to the housing,
wherein the lens is disposed on the phosphor layer,
wherein the lens is a lens of a red color,
wherein the housing has a recess with an open top, a bottom portion disposed under the recess, and a sidewall disposed around the recess,
wherein the substrate, the plurality of light emitting devices, the resin layer, the phosphor layer, and the lens are disposed in the recess of the housing,
wherein the substrate is disposed between the resin layer and the bottom portion of the housing,
wherein side portions of the phosphor layer are disposed between the sidewall of the housing and the resin layer, and
wherein an upper end of the sidewall of the housing are disposed at a higher position than a lower surface of the lens.