Light-emitting diode arrangement

1. A light-emitting diode arrangement, comprising:

a first substrate with a first light-emitting diode which is arranged on the first substrate such that light emitted by it radiates in a main emission direction of the light-emitting diode arrangement; and

a second substrate with a second light-emitting diode which is arranged on the second substrate such that light emitted by it radiates in the main emission direction of the light-emitting diode arrangement; wherein the at least one first light emitting diode emits light in a direction that passes through the second substrate;

wherein the second substrate is arranged above the first substrate, such that the second substrate at least partly covers the first substrate.

2. The light-emitting diode arrangement of claim 1 ,

wherein the second substrate comprises a light-transmissive material.

3. The light-emitting diode arrangement of claim 1 ,

wherein the first light-emitting diode has a reflective element in the region of an arrangement area with respect to the first substrate.

4. The light-emitting diode arrangement of claim 1 ,

wherein the first light-emitting diode has a higher thermal loading than the second light-emitting diode.

5. The light-emitting diode arrangement of claim 1 ,

wherein the first substrate has a thermal conductivity that is equal to or higher than the thermal conductivity of the second substrate.

6. The light-emitting diode arrangement of claim 1 ,

wherein the first substrate has a reflective surface.

7. The light-emitting diode arrangement of claim 1 ,

wherein the first substrate has a first cutout and the first light-emitting diode is arranged in the first cutout.

8. The light-emitting diode arrangement of claim 1 ,

wherein the first substrate has a first cutout and a second cutout and a respective light-emitting diode is arranged in the cutouts.

9. The light-emitting diode arrangement of claim 8 ,

wherein the first cutout and the second cutout are at least partly filled with converter material.

10. The light-emitting diode arrangement of claim 1 ,

wherein the first substrate and the second substrate are spaced apart from one another by a spacer.

11. The light-emitting diode arrangement of claim 10 ,

wherein the spacer has a reflective surface.

12. The light-emitting diode arrangement of claim 10 ,

wherein the spacer has a thermal conductivity of at least 20 [W/Km].

13. The light-emitting diode arrangement of claim 1 ,

wherein a first group of light-emitting diodes and a second group of light-emitting diodes are arranged on the first substrate and a third group of light-emitting diodes is arranged on the second substrate.

14. The light-emitting diode arrangement of claim 13 ,

wherein during operation the first group of light-emitting diodes emits red light, the second group of light-emitting diodes emits green light and the third group of light-emitting diodes emits blue-white light.

15. The light-emitting diode arrangement of claim 1 , wherein the first substrate comprises two or more cutouts wherein each cutout comprises the first light-emitting diode.

16. The light-emitting diode arrangement of claim 15 , wherein the second substrate is arranged over the two or more cutouts.

17. The light-emitting diode arrangement of claim 1 , wherein at least one first light emitting diode is arranged between the first substrate and the second substrate.

18. The light-emitting diode arrangement of claim 1 , wherein the second substrate comprises a transparent material.

19. The light-emitting diode arrangement of claim 1 , wherein the second light-emitting diode is configured as a volume emitting light-emitting diode.