Lighting device and vehicle lamp comprising same

Patent metadata

Field	Value
Publication number	US-12228262-B2
Application number	US-202218691558-A
Country	US
Kind code	B2
Filing date	Sep 16, 2022
Priority date	Sep 16, 2021
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

The lighting device disclosed at an embodiment includes a substrate; a plurality of light sources arranged on the substrate; a resin layer scaling the plurality of light sources; a reflective member disposed between the resin layer and the substrate; and an antenna pattern disposed in a first region between the reflective member and the substrate.

First claim

The invention claimed is:

1. A lighting device comprising:
a substrate;
a plurality of light sources arranged on the substrate;
a resin layer sealing the plurality of light sources and emitting surface light through an upper surface or side surface;
a reflective member disposed between the resin layer and the substrate; and
an antenna pattern disposed in a first region between the reflective member and the substrate,
wherein the reflective member has a concave recess where the antenna pattern is disposed and
wherein a maximum length of the antenna pattern is smaller than an interval between the plurality of light sources, and
wherein a width of the other side of the antenna pattern is smaller than a width of one side of the antenna pattern.

2. The lighting device of claim 1 ,
wherein the first region is disposed between two adjacent light sources or on one side of one light source.

3. The lighting device of claim 1 , comprising:
a driving module disposed on one side of the substrate and having a light source driver for driving the light source and a near filed communication portion connected to the antenna pattern.

4. The lighting device of claim 3 ,
wherein the driving module is attached to a lower surface of the substrate or connected to a connector of the substrate with a signal cable.

5. The lighting device of claim 1 , comprising:
an optical member on the resin layer and a light blocking portion disposed on each of the plurality of light sources,
wherein the light blocking portion overlaps the antenna pattern in a vertical direction.

6. The lighting device of claim 1 , comprising:
a reflective layer on the resin layer,
wherein light emitted from the plurality of light sources is extracted through one side of the resin layer,
wherein the antenna pattern is disposed on an emission side of at least one of the plurality of light sources.

7. The lighting device of any- claim 1 ,
wherein a thickness of the antenna pattern is thinner than a thickness of the reflective member,
wherein the reflective member covers an entire surface of the antenna pattern.

8. A lighting device comprising:
a substrate;
a plurality of light sources arranged on the substrate;
a resin layer sealing the plurality of light sources;
a reflective member disposed between the resin layer and the substrate; and
an antenna pattern disposed in a first region between the reflective member and the substrate,
wherein the antenna pattern is formed as a partial pattern of a wiring layer disposed on the substrate, and
wherein a thickness of the antenna pattern is the same as a thickness of the wiring layer,
wherein the reflective member has a concave recess where the antenna pattern is disposed and
wherein a maximum length of the antenna pattern is smaller than an interval between the plurality of light sources, and
wherein a width of the other side of the antenna pattern is smaller than a width of one side of the antenna pattern.

9. The lighting device of claim 8 ,
wherein the antenna pattern is disposed on an emission side of at least one of the plurality of light sources.

10. The lighting device of claim 8 ,
wherein the other side of the antenna pattern is disposed adjacent to the emission side of at least one of the plurality of light sources.

11. The lighting device of claim 8 , comprising:
a driving module disposed on one side of the substrate and including a light source driver for driving the light source and a near filed communication portion connected to the antenna pattern,
wherein the driving module is attached to a lower surface of the substrate or connected to a connector of the substrate with a signal cable.

12. The lighting device of claim 11 , comprising:
an optical member on the resin layer and a plurality of light blocking portions disposed on each of the plurality of light sources,
wherein at least one of the plurality of light blocking portions overlaps the antenna pattern in a vertical direction.

13. The lighting device of claim 11 , comprising:
a reflective layer on the resin layer,
wherein light emitted from the plurality of light sources is extracted through one side of the resin layer.

14. A vehicle lamp comprising:
a lamp having at least one of a tail light, a turn signal light, a reversing light, a brake light, and a daytime running light,
wherein the lamp has a lighting device according to claim 1 .

15. The lighting device of claim 8 ,
wherein the thickness of the antenna pattern is thinner than a thickness of the reflective member,
wherein the reflective member covers an entire surface of the antenna pattern.

Assignees

• Lg Innotek Co Ltd

Inventors

• Ko Kwang Hyun
• Park Moo Ryong
• Jung Woo Kil
• Ham So Yeon

Classifications

• H05K2201/2054

  Light-reflecting surface, e.g. conductors, substrates, coatings, dielectrics · CPC title

• H05K1/0274

  Optical details, e.g. printed circuits comprising integral optical means (H05K1/0269 takes precedence; coupling light guides with opto-electronic components G02B6/42) · CPC title

• H05K1/181

  associated with surface mounted components · CPC title

• H05K1/165

  incorporating printed inductors · CPC title

• H05K2201/10106

  Light emitting diode [LED] · CPC title