Optoelectronic lighting device and method

Patent metadata

Field	Value
Publication number	US-12345092-B2
Application number	US-202218284627-A
Country	US
Kind code	B2
Filing date	Mar 30, 2022
Priority date	Mar 30, 2021
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

An optoelectronic lighting device includes a transparent pane, in particular a glass pane, on which a first at least partially transparent intermediate layer is arranged. The optoelectronic lighting device also includes at least one optoelectronic fiber arranged on the first intermediate layer and including at least one electrical line extending in a longitudinal direction and connected to a plurality of optoelectronic semiconductor components. The optoelectronic fiber includes a flexible support substrate on which the at least one electrical line and the plurality of optoelectronic semiconductor components are arranged. The optoelectronic lighting device further includes a second at least partially transparent intermediate layer, the second intermediate layer being arranged on the first intermediate layer and covering the at least one optoelectronic fiber.

First claim

The invention claimed is:

1. An optoelectronic lighting device comprising:
a transparent pane on which a first at least partially transparent intermediate layer is arranged;
at least one optoelectronic fiber arranged on the first intermediate layer and comprising at least one electrical line extending in a longitudinal direction and connected to a plurality of optoelectronic semiconductor components, wherein the optoelectronic fiber comprises a flexible support substrate on which the at least one electrical line and the plurality of optoelectronic semiconductor components are arranged; and
a second at least partially transparent intermediate layer, the second intermediate layer being arranged on the first intermediate layer and covering the at least one optoelectronic fiber.

2. The optoelectronic lighting device according to claim 1 ,
wherein the at least one electrical line is blackened or comprises a substantially transparent material.

3. The optoelectronic lighting device according to claim 1 ,
wherein the optoelectronic fiber comprises a flexible cover layer arranged on the flexible support substrate, and the flexible cover layer embeds the at least one electrical line and the plurality of optoelectronic semiconductor components.

4. The optoelectronic lighting device according to claim 1 ,
wherein the flexible support substrate and/or the flexible cover layer comprises at least one of PVB, EVA, silicone, acrylic, and an epoxy, and wherein optionally the flexible support substrate and the flexible cover layer have the same material.

5. The optoelectronic lighting device according to claim 1 ,
wherein the material of the flexible support substrate and/or the material of the flexible cover layer has a refractive index substantially corresponding to the refractive index of the material of the first and/or the second intermediate layer.

6. The optoelectronic lighting device according to claim 1 ,
wherein the optoelectronic fiber has one of the following cross-sectional shapes as viewed transversely to the longitudinal direction:
rectangular;
square;
round;
oval; and
trapezoidal.

7. The optoelectronic lighting device according to claim 1 ,
wherein a height and/or width or a diameter or radius of a cross-sectional area of the optoelectronic fiber is less than or equal to 200 μm.

8. The optoelectronic lighting device according to claim 1 ,
wherein the optoelectronic fiber has a length of at least 1 m.

9. The optoelectronic lighting device according to claim 1 ,
wherein each of the plurality of optoelectronic semiconductor components is associated with an integrated circuit for driving it, or,
wherein in each case two or more of the plurality of optoelectronic semiconductor components are associated with an integrated circuit for driving them.

10. The optoelectronic lighting device according to claim 1 ,
wherein the plurality of optoelectronic semiconductor components are connected to each other in the form of a parallel circuit.

11. The optoelectronic lighting device according to claim 1 ,
wherein the plurality of optoelectronic semiconductor components are interconnected in the form of a daisy chain circuit.

12. The optoelectronic lighting device according to claim 1 ,
wherein the at least one optoelectronic fiber or the plurality of optoelectronic semiconductor components form a symbol or lettering during operation of the optoelectronic semiconductor components.

13. The optoelectronic lighting device according to claim 1 ,
further comprising a further transparent pane, the first and second intermediate layers being arranged between the two transparent panes.

14. The optoelectronic lighting device according to claim 1 .
wherein a height of at least two intersecting optoelectronic fibers at their intersection point is less than or equal to 300 um.

15. The optoelectronic lighting device according to claim 1 .
wherein when viewed in the longitudinal direction a distance between at least two adjacent optoelectronic semiconductor components is greater than or equal to 1 mm.

16. A method of manufacturing an optoelectronic lighting device comprising the steps:
providing a transparent pane;
applying a first at least partially transparent intermediate layer on the transparent pane;
providing at least one optoelectronic fiber, wherein the at least one optoelectronic fiber comprises at least one electrical line extending in a longitudinal direction and connected to a plurality of optoelectronic semiconductor components and a flexible support substrate;
arranging the at least one optoelectronic fiber on the first intermediate layer; and
applying a second at least partially transparent intermediate layer on the first intermediate layer such that the second intermediate layer covers the first intermediate layer and the at least one optoelectronic fiber.

17. The method according to claim 16 ,
wherein the step of arranging the at least one optoelectronic fiber on the first intermediate layer is performed such that the at least one optoelectronic fiber or the plurality of optoelectronic semiconductor components form a symbol or lettering during operation of the optoelectronic semiconductor components.

18. The method according to claim 16 ,
further comprising an arrangement of a further transparent pane on the second intermediate layer in such a way that the first and the second intermediate layer are arranged between the two transparent panes.

19. The method according to claim 16 ,
further comprising a lamination step in which the transparent pane, the first intermediate layer, the second intermediate layer and optionally another transparent pane are bonded together.

20. The method according to claim 16 ,
wherein the step of providing the at least one optoelectronic fiber comprises a step of providing the flexible support substrate, a step of arranging at least one electrical line along the longitudinal direction on the flexible support substrate, and, a step of electrically connecting a plurality of optoelectronic semiconductor components to the at least one electrical line; and
wherein optionally the step of providing the at least one optoelectronic fiber further comprises a step of arranging a flexible cover layer on the flexible support substrate such that the at least one electrical line and the plurality of optoelectronic semiconductor components are at least partially embedded in the flexible cover layer.

Assignees

• Ams Osram Int Gmbh

Inventors

• Wittmann Sebastian
• Dobner Andreas

Classifications

• H10W90/00

  Package configurations · CPC title

• F21S43/28131

  Structures comprising multiple layers · CPC title

• E06B2009/247

  Electrically powered illumination · CPC title

• F21S43/15

  Strips of light sources · CPC title

• F21S41/285

  Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805 · CPC title