Invention Grant
- Patent Title: Planar lighting device
- Patent Title (中): 平面照明装置
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Application No.: US14992764Application Date: 2016-01-11
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Publication No.: US09551899B2Publication Date: 2017-01-24
- Inventor: Yongjin Kim , Munheon Hong , Chilkeun Park , Sangcheon Kim , Mangeun Kim
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2013-0007294 20130123
- Main IPC: F21V1/00
- IPC: F21V1/00 ; G02F1/1335 ; F21V11/16 ; F21V7/00 ; F21Y105/00 ; G02F1/1333 ; F21V8/00

Abstract:
A lighting device including a circuit substrate; a plurality of light sources disposed on the circuit substrate; a reflection layer disposed on the circuit substrate, the reflection layer comprising a plurality of openings where respective light sources are located; a plurality of light regulating patterns disposed at an edge of the reflection layer and at an inclination with respect to the reflection layer, wherein corresponding light regulating patterns are disposed closer to the edge of the reflection layer at first areas aligned with the respective light sources than light regulating patterns at second areas between the first areas; and an optical sheet disposed on the light sources.
Public/Granted literature
- US20160124266A1 PLANAR LIGHTING DEVICE Public/Granted day:2016-05-05
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