IP Library › Granted Patent US 12,040,317
Granted Patent B2
US 12,040,317 · App. 17/541,761 · Granted Jul 16, 2024

Optoelectronic device

Inventors: Michael Brandl (Mintraching, DE); Andreas Dobner (Wenzenbach, DE); Matthias Goldbach (Pentling, DE); Sebastian Wittmann (Regenstauf, DE); Uli Hiller (Bad Abbach, DE); Markus Klein (Tegernheim, DE); Thomas Schwarz (Regensburg, DE); Andreas Waldschik (Wolmirstedt OT Elbeu, DE); Michael Wittmann (Alteglofsheim, DE); Matthias Bruckschloegl (Regensburg, DE); Stefan Groetsch (Bad Abbach, DE); Rainer Huber (Bad Abbach, DE); Peter Brick (Regensburg, DE); Ludwig Hofbauer (Regenstauf, DE)
Assignee: OSRAM Opto Semiconductors GmbH
H01L25/0756H01L33/46H01L33/62H01L33/641H04W72/20H04W72/51B60J3/00B60K35/00B60K35/60B60K2370/785B62J50/22
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Quick Facts
Patent No.
US 12,040,317
App. No.
17/541,761
Granted
Jul 16, 2024
Kind
B2
Abstract

An optoelectronic device comprises a plurality of optoelectronic light sources being arranged on a first layer, in particular an intermediate layer being arranged between a cover layer and a carrier layer. The first layer comprises or consists of an at least partially transparent material and each optoelectronic light source of the plurality of optoelectronic light sources comprises an individual light converter for converting light emitted by the associated light source into converted light. The light converter of each optoelectronic light source is arranged on the first layer and/or the associated optoelectronic light source.

Claims (21)

1. An optoelectronic device comprising:

a plurality of optoelectronic light sources being arranged on a first layer, in particular an intermediate layer being arranged between a cover layer and a carrier layer;

wherein the first layer comprises or consists of an at least partially transparent material;

wherein each optoelectronic light source of the plurality of optoelectronic light sources comprises an individual light converter for converting light emitted by the associated light source into converted light; and

wherein the light converter of each optoelectronic light source is arranged on the first layer and/or the associated optoelectronic light source.

2. The optoelectronic device according to claim 1 , wherein each of the optoelectronic light sources is a small LED with edge lengths of less than 200 μm, in particular in the range from 150 μm to 40 μm.

3. The optoelectronic device according to claim 1 , wherein the light converters of different light sources are separated from each other.

4. The optoelectronic device according to claim 1 ,

wherein the optoelectronic light sources are distributed over a first surface area of the first layer; and

wherein the first surface area is larger, in particular by a factor of at least approximately 30, than the sum of the cross sectional areas of the optoelectronic light sources.

5. The optoelectronic device according to claim 1 , wherein each light converter comprises conversion particles with a diameter of at least approximately 1 μm to 30 μm.

6. The optoelectronic device according to claim 1 , wherein each light converter comprises a droplet form covering the associated optoelectronic light source.

7. The optoelectronic device according to claim 1 , wherein each light converter is arranged between the first layer and the associated optoelectronic light source.

8. The optoelectronic device according to claim 7 , wherein each light converter comprises an adhesive being configured to fix the associated optoelectronic light source to the first substrate.

9. The optoelectronic device according to claim 1 , wherein each light converter is arranged on the first layer, opposite to the associated optoelectronic light source, and faces a light emitting surface of the associated optoelectronic light source.

10. The optoelectronic device according to claim 1 , wherein a light-blocker extends in a circumferential direction around each light converter.

11. The optoelectronic device according to claim 1 , wherein each light converter is formed as platelet being arranged, particularly glued, on the first layer and faces a light emitting surface of the associated optoelectronic light source.

12. The optoelectronic device according to claim 11 , wherein each platelet comprises conversion particles arranged within a matrix material comprising silicone, glass, or polysiloxane.

13. The optoelectronic device according to claim 1 , wherein each light converter and the associated optoelectronic light source is embedded into the first layer.

14. The optoelectronic device according to claim 1 , wherein the optoelectronic device further comprises a set of light sources without a light converter.

15. The optoelectronic device according to claim 1 , wherein the light converters include at least a first set of light converters and a second set of light converters, and the second set of light converters is configured to convert light to a different wavelength than the first set of light converters.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2022
From: BRANDL, MICHAEL; DOBNER, ANDREAS; GOLDBACH, MATTHIAS; WITTMANN, SEBASTIAN; HILLER, ULI; KLEIN, MARKUS; SCHWARZ, THOMAS; WALDSCHIK, ANDREAS; WITTMANN, MICHAEL; BRUCKSCHLOEGL, MATTHIAS; GROETSCH, STEFAN; HUBER, RAINER; BRICK, PETER; HOFBAUER, LUDWIG
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 059373/0297 →
Priority Claims (12)
DE 10 2019 133 451.9 · Dec 6, 2019 · national
DK PA202070103 · Feb 21, 2020 · national
DE 10 2020 114 478.4 · May 29, 2020 · national
DE 10 2020 114 482.2 · May 29, 2020 · national
DE 10 2020 114 483.0 · May 29, 2020 · national
DE 10 2020 114 670.1 · Jun 2, 2020 · national
DE 10 2020 116 479.3 · Jun 23, 2020 · national
DE 10 2020 117 104.8 · Jun 29, 2020 · national
DE 10 2020 125 429.6 · Sep 29, 2020 · national
DE 10 2020 125 433.4 · Sep 29, 2020 · national
DE 10 2020 127 194.8 · Oct 15, 2020 · national
DE 10 2020 127 204.9 · Oct 15, 2020 · national
Continuity (2)
Continuation 17615446
Related Publication 20220167334A1 · May 26, 2022
Cited By (4)
US 12,298,528 US 12,300,674 US 12,330,499 US 12,388,058