IP Library › Granted Patent US 11,658,274
Granted Patent B2
US 11,658,274 · App. 17/252,203 · Granted May 23, 2023

Component

Inventors: Thomas Feichtinger (Graz, AT); Stefan Sax (Graz, AT)
Assignee: TDK ELECTRONICS AG
H01L33/60H01L25/0753H01L2933/0058H01L2933/0083
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Quick Facts
Patent No.
US 11,658,274
App. No.
17/252,203
Granted
May 23, 2023
Kind
B2
Abstract

A component is disclosed. In an embodiment the component includes a light-emitting element and a structured layer having an optical functionality, wherein the structured layer is arranged on the light-emitting element.

Claims (40)

1. A component comprising:

a light-emitting element;

a structured layer having an optical functionality, wherein the structured layer is arranged on the light-emitting element;

a carrier substrate on which the light-emitting element is arranged;

at least one further light-emitting element arranged on the carrier substrate; and

an intermediate layer arranged between the light-emitting element and the further light-emitting element,

wherein a top side of the intermediate layer facing away from the carrier substrate has a depression shaped such that light coupled from the light-emitting elements into the intermediate layer is reflected in a direction of the carrier substrate, and

wherein the intermediate layer does not cover an upper side of the light-emitting element facing to the structured layer and an upper side of the further light-emitting element facing to the structured layer.

2. The component according to claim 1 ,

wherein the structured layer is configured to collimate, diverge and/or expand light emitted by the light-emitting element, and/or

wherein the structured layer forms a Fresnel lens.

3. The component according to claim 1 , wherein the structured layer comprises a first region having a first optical functionality and a second region having a second optical functionality, and wherein the second optical functionality differs from the first optical functionality.

4. The component according to claim 3 ,

wherein the first optical functionality is collimation, diverging and/or expanding, and

wherein the second optical functionality is collimation, diverging and/or expanding.

5. The component according to claim 3 ,

wherein the first region is arranged directly above the light-emitting element, and

wherein the second region is arranged laterally with respect to the light-emitting element and does not cover the light-emitting element.

6. The component according to claim 1 , wherein the structured layer comprises a plurality of partial layers differing from one another in their physical properties and/or their chemical properties and/or their functional properties.

7. The component according to claim 1 , wherein the structured layer envelopes the light-emitting element.

8. The component according to claim 1 , wherein a layer thickness of the structured layer is between 1 μm and 1000 μm, inclusive.

9. The component according to claim 1 , further comprising a light conversion layer arranged between the structured layer and the light-emitting element.

10. The component according to claim 1 , further comprising at least one optical component arranged on a top side of the structured layer facing away from the light-emitting element.

11. The component according to claim 1 , wherein the intermediate layer is configured to absorb, reflect, scatter or convert light from the light-emitting elements into the intermediate layer.

12. The component according to claim 1 ,

wherein the intermediate layer is covered by the structured layer, and

wherein, on a top side of the structured layer facing away from the intermediate layer, an additional light conversion layer is arranged above the intermediate layer.

13. The component according to claim 1 , further comprising a partition wall arranged between the light-emitting element and the further light-emitting element.

14. The component according to claim 13 , wherein the partition wall forms an angle of between 10° and 80°, inclusive, with a surface of the carrier substrate.

15. The component according to claim 13 , wherein the partition wall is covered with a reflective layer.

16. The component according to claim 1 , wherein the intermediate layer comprises an optically transparent filler.

17. The component according to claim 1 , wherein the light-emitting element is an arrangement of a plurality of light-emitting areas.

18. The component according to claim 17 ,

wherein the structured layer covers the arrangement of the plurality of light-emitting areas,

wherein the structured layer comprises a first region having a first optical functionality and a second region having a second optical functionality,

wherein the second optical functionality differs from the first optical functionality, and

wherein the first region covers a first area from the arrangement of the plurality of light-emitting areas and the second region covers a second area from the arrangement of the plurality of light-emitting areas.

19. The component according to claim 17 , wherein at least two of the areas from the arrangement of the plurality of light-emitting areas differ from one another in terms of their size.

20. The component according to claim 3 , wherein the first region and the second region are arranged directly above the light-emitting element.

21. The component according to claim 1 , wherein the structured layer is a Fresnel lens.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2022
From: FEICHTINGER, THOMAS; SAX, STEFAN
To: TDK ELECTRONICS AG
Reel/Frame 059131/0924 →
Priority Claims (1)
DE 10 2018 115 342.2 · Jun 26, 2018 · national
Continuity (1)
Related Publication 20210217939A1 · Jul 15, 2021