Nitride semiconductor light-emitting element
US-9318645-B2 · Apr 19, 2016 · US
μ-LED, μ-LED device, display for augmented reality or lighting applications
US12477883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12477883-B2 |
| Application number | US-202217733892-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2022 |
| Priority date | Apr 23, 2019 |
| Publication date | Nov 18, 2025 |
| Grant date | Nov 18, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention relates to 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.
First claim
Opening claim text (preview).
The invention claimed is: 1 . μ-LED module comprising at least one layer stack forming a base module, with a first layer formed on a carrier, an active layer and a second layer, wherein a first contact is formed in or on a surface region of the second layer facing away from the carrier, and a second contact is formed in or on the surface region of the first layer facing away from the carrier, and the first and second contact are spaced apart from one another, wherein the second contact is electrically insulated from the active layer and the second layer by means of a dielectric and is formed to and on the surface region of the second layer facing away from the carrier. 2 . The μ-LED module according to claim 1 , in which a light-emitting surface is formed on a side of the stack of layers facing away from the first and second contact. 3 . The μ-LED module according to claim 1 , characterized in that the μ-LED module comprises a plurality of base modules arranged in a matrix of at least one row and at least one column. 4 . The μ-LED module according to claim 3 , characterized in that the base modules of two adjacent lines are oriented in opposite directions so that contacts of the same polarity, in particular first contacts, are arranged adjacent to each other. 5 . The μ-LED module according to claim 3 , in which a μ-LED adjacent to the μ-LED module is separated by a deep flanking structuring. 6 . The μ-LED module according to claim 5 , in which regions of the active layer which run adjacent to the deep flanking structure have an elevated band structure produced in particular by quantum well intermixing.
Assignees
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Classifications
Package configurations · CPC title
characterised by their shape, e.g. curved or truncated substrates · CPC title
Optical field-shaping means, e.g. lenses · CPC title
having reflecting means, e.g. semiconductor Bragg reflectors · CPC title
Manufacture or treatment · CPC title
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Frequently asked questions
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- What does patent US12477883B2 cover?
- The invention relates to 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.
- Who is the assignee on this patent?
- Osram Opto Semiconductors Gmbh
- What technology area does this patent fall under?
- Primary CPC classification H10H29/142. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 18 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).