Μ-led, µ-led device, display and method for the same
AssigneeOSRAM Opto Semiconductors GmbH
InventorsPeter BRICK, Jean-Jacques DROLET, Hubert HALBRITTER, Laura KREINER, Thomas SCHWARZ, Julia STOLZ
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Abstract
Disclosed are various aspects of a μ-LED or a μ-LED array for augmented reality or lighting applications, in particular in the automotive field. The μ-LED is characterized by particularly small dimensions in the range of a few μm.
Claims25
A converter element for an optoelectronic component, comprising:
- at least one structured semiconductor layer arranged over an active region configured to emit radiation;
- and
- a converter material arranged in some areas of the structured semiconductor layer, which, when excited by said radiation, emits a converted radiation into an emission region,
- wherein the structured semiconductor layer and the converter material are arranged and configured in such a way that the radiation is emitted as a directed beam of rays into the emission region.
A light-shaping structure for an optoelectronic device comprising at least one structured semicondutor layer with a converter material which, when excited by an incident excitation radiation, emits a converted radiation into an emission region, wherein the structured semiconductor layer comprises a structure at least in some areas in which the converter material is arranged at least in sections and which is configured in such a way that the radiation is emitted as a directed beam of rays into the emission region.
An arrangement comprising:
- a μ-LED arrangement for generating a pixel of a display, comprising:
- a flat carrier substrate;
- at least three μ-LEDs, which are arranged on a mounting side of the carrier substrate, wherein the at least three μ-LEDs are adapted to emit light of different color transverse to a carrier substrate plane in a direction away from the carrier substrate;
- a flat reflector element spatially arranged on the assembly side relative to the at least three μ-LEDs and configured to reflect light emitted by the at least three μ-LEDs in the direction of the carrier substrate;
- wherein the flat carrier substrate is at least partially transparent so that light reflected from the flat reflector element propagates through the flat carrier substrate and emerges at a display side of the flat carrier substrate opposite the mounting side;
- and
- wherein a photonic structure is incorporated in or on the flat carrier substrate, with first and second regions with different refractive indexes, whereas converter material forms one of the first and second regions and is configured in such a way that the radiation is emitted as a directed beam of rays.
Dependencies are inferred from the claim text.