IP Library Granted Patent US 11,211,533
Granted Patent B2
US 11,211,533 · App. 16/765,192 · Granted Dec 28, 2021

Optoelectronic component and display device

Inventors: Siegfried Herrmann (Neukirchen, DE); Michael Völkl (Regensburg, DE)
Assignee: OSRAM OLED GmbH
H01L33/58H01L25/0753H01L33/502H01L33/56H01L33/62
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Quick Facts
Patent No.
US 11,211,533
App. No.
16/765,192
Granted
Dec 28, 2021
Kind
B2
Abstract

An optoelectronic component, having an optoelectronic semiconductor chip, includes a substrate, wherein at least two light-emitting sections are arranged laterally next to one another over an upper side of the substrate, the light-emitting sections are separately controllable, the light-emitting sections generate electromagnetic radiation from different spectral ranges, the light-emitting sections are formed by a layer sequence, an active region is formed inside the layer sequence, trenches are formed between the light-emitting sections, and the trenches fully divide the active region so that the light-emitting sections are separated from one another.

Claims (52)

1. An optoelectronic component, having an optoelectronic semiconductor chip, comprising a substrate and a carrier,

wherein at least two light-emitting sections are arranged laterally next to one another over an upper side of the substrate,

the light-emitting sections are separately controllable,

the optoelectronic semiconductor chip is arranged with an end side, formed perpendicularly to the upper side of the substrate, over a mounting surface of the carrier,

a molding material is arranged over the mounting surface of the carrier,

the molding material forms a cavity, and

the optoelectronic semiconductor chip is arranged in the cavity.

2. The optoelectronic component as claimed in claim 1 , wherein the light-emitting sections generate electromagnetic radiation from different spectral ranges.

3. The optoelectronic component as claimed in claim 1 ,

wherein the light-emitting sections are formed by a layer sequence,

an active region is formed inside the layer sequence,

trenches are formed between the light-emitting sections, and

the trenches fully divide the active region so that the light-emitting sections are separated from one another.

4. The optoelectronic component as claimed in claim 3 ,

wherein layers located on one side of the active region of all the light-emitting sections are electrically contacted by a common electrical conductive track, and

the layers located on an opposite side of the active region of different light-emitting sections are electrically contacted by separate electrical conductive tracks.

5. The optoelectronic component as claimed in claim 4 ,

wherein the electrical conductive tracks of different electrical poles are arranged on opposite sides of the active region,

the electrical conductive tracks respectively contacting a light-emitting section are embedded in insulation sections, and

the insulation sections are configured to electrically insulate the separate electrical conductive tracks extending along a plurality of light-emitting sections from one another such that, respectively, only one light-emitting section is electrically contacted by an electrical conductive track.

6. The optoelectronic component as claimed in claim 4 , wherein the electrical conductive tracks are accessible on an end side formed perpendicularly to an upper side of the optoelectronic semiconductor chip.

7. The optoelectronic component as claimed in claim 1 ,

wherein the light-emitting sections are formed by a layer sequence,

an active region is formed inside the layer sequence,

at least one outermost layer facing away from the active region of the layer sequence is a current distribution layer,

the current distribution layer comprises gaps, and

the gaps are formed between the light-emitting sections so that the light-emitting sections are separated from one another.

8. The optoelectronic component as claimed in claim 1 ,

wherein the light-emitting sections are fully separated from one another,

the light-emitting sections are respectively formed by a layer sequence,

active regions are respectively formed within the layer sequences, and

the layer sequences of different light-emitting sections comprise different material systems.

9. The optoelectronic component as claimed in claim 1 , wherein an electrically insulating material is arranged between the light-emitting sections.

10. The optoelectronic component as claimed in claim 1 ,

wherein a wavelength-converting material is arranged on at least one of the at least two light-emitting sections and covers the at least one light-emitting section of the at least two light-emitting sections at least in sections, and

the wavelength-converting material does not cover any other light-emitting section.

11. The optoelectronic component as claimed in claim 10 , wherein the wavelength-converting material fully covers the light-emitting section.

12. The optoelectronic component as claimed in claim 10 , wherein the wavelength-converting material annularly encloses the substrate.

13. The optoelectronic component as claimed in claim 10 , further comprising a further wavelength-converting material,

wherein the further wavelength-converting material at least in sections covers a light-emitting section not covered by the wavelength-converting material, and

the further wavelength-converting material does not cover any other light-emitting section.

14. The optoelectronic component as claimed in claim 10 , wherein the wavelength-converting material extends from the optoelectronic semiconductor chip as far as a molding material.

15. The optoelectronic component as claimed in claim 10 , wherein an encapsulation material is arranged in the cavity, the optoelectronic semiconductor chip, and a further wavelength-converting material is embedded in the encapsulation material.

16. The optoelectronic component as claimed in claim 15 , wherein the encapsulation material comprises embedded particles.

17. The optoelectronic component as claimed in claim 10 ,

wherein at least one light-guiding structure is arranged in the cavity,

the light-guiding structure extends from the region not covered by the wavelength-converting material of the light-emitting section as far as the molding material,

the light-guiding structure is formed running parallel to the end side of the optoelectronic semiconductor chip,

the light-guiding structure annularly encloses the substrate, and

the wavelength-converting material is arranged over the light-guiding structure in relation to the end side.

18. The optoelectronic component as claimed in claim 17 , further comprising a further light-guiding structure, wherein the light-guiding structure and the further light-guiding structure extend starting from different light-emitting sections into the cavity.

19. A display device having an arrangement consisting of a multiplicity of optoelectronic components, wherein the optoelectronic components are configured as claimed in claim 1 .

Assignments (2)
MERGER Recorded Feb 17, 2026
From: OSRAM OLED GMBH
To: AMS-OSRAM INTERNATIONAL GMBH
Reel/Frame 074881/0104 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2021
From: HERRMANN, SIEGFRIED; VÖLKL, MICHAEL
To: OSRAM OLED GMBH
Reel/Frame 055588/0512 →