公开(公告)号：US11757068B2

公开(公告)日：2023-09-12

申请号：US17180390

申请日：2021-02-19

Applicant: LG INNOTEK CO., LTD.

Inventor： Sa Rum Han ,  Dong Il Eom ,  Young Hun Ryu

IPC: H01L33/50 ,  H01L33/56 ,  H01L25/075 ,  G02B5/02

CPC classification number: H01L33/502 ,  G02B5/0205 ,  H01L25/0753 ,  H01L33/56 ,  H01L33/507

Abstract: A lighting module according to an embodiment of the invention includes: a substrate; a plurality of light emitting devices disposed in N rows (N is an integer of 1 or more) on the substrate; a first resin layer covering the plurality of light emitting devices; a first diffusion layer disposed on the first resin layer and diffusing light emitted from the first resin layer; and a second diffusion layer disposed on the first diffusion layer and diffusing light emitted from the first diffusion layer, wherein the first diffusion layer includes a diffusing agent, and the second diffusion layer includes at least one of a phosphor and ink particles.

公开(公告)号：US11359786B2

公开(公告)日：2022-06-14

申请号：US17422231

申请日：2020-01-23

Applicant: LG INNOTEK CO., LTD.

Inventor： Hoon Park ,  Sa Rum Han ,  Jung Ju Lee

IPC: G02B6/00 ,  F21S41/176 ,  F21S41/25 ,  F21S41/20

Abstract: A lighting device disclosed in an embodiment of the invention includes a plurality of light sources disposed on a substrate; a resin layer disposed on the substrate and the plurality of light sources; a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer, wherein the ink layer has a first ink layer and a second ink layer having a height greater than that of the first ink layer with respect to the upper surfaces of the phosphor layer, and it possible to provide a three-dimensional image of the surface.

公开(公告)号：US10563840B2

公开(公告)日：2020-02-18

申请号：US16540572

申请日：2019-08-14

Applicant: LG INNOTEK CO., LTD.

Inventor： Dong Hyun Lee ,  Seong Jin Kim ,  Young Jae Choi ,  Sa Rum Han

IPC: F21V7/00 ,  F21V11/16 ,  F21V5/00 ,  F21Y115/10 ,  F21Y103/10

Abstract: An embodiment of the present invention relates to a lighting device comprising: a light source unit comprising a plurality of light emitting elements; a conversion unit for converting light emitted from the light source unit; a reflection unit for reflecting light which has passed through the conversion unit; and a half mirror member, which is disposed on the top of the reflection unit, for transmitting a portion of incident light and reflecting a portion of the incident light. The conversion unit includes an optical pattern for selectively transmitting light emitted from the light source unit, the light source unit is disposed on a periphery portion of the reflection unit, and the height of the center portion of the reflection unit is greater than the height of the periphery portion thereof.