Organic light-emitting diode and device comprising an organic light-emitting diode
View Patent ↗In at least one embodiment, a light-emitting diode includes a carrier and an organic layer sequence with an active layer. A mirror layer and electrical contact regions are located on a connection side of the carrier. The contact regions are provided for electrically contacting the organic layer sequence. Electrical dummy regions are located on the connection side. The dummy regions are electrically insulated from the contact regions. The mirror layer is present in the dummy regions and in the contact regions. At least two of the dummy regions are arranged in such a way that base areas of these dummy regions cannot be congruently superimposed merely by arbitrary rotation of the carrier relative to a center axis of the carrier perpendicular to the connection side.
1. An organic light-emitting diode, comprising:
a carrier with a connection side;
an organic layer sequence with at least one active layer configured to generate radiation;
a mirror layer on the connection side;
a first electrical contact region and a second electrical contact region on the connection side for electrical contacting of the organic layer sequence; and
a plurality of electrical dummy regions on the connection side, the dummy regions being electrically insulated from the contact regions;
wherein the mirror layer is present both in the dummy regions and in the contact regions;
wherein at least two of the dummy regions are arranged in such a way that base areas of these dummy regions cannot be congruently superimposed by arbitrary rotation of the carrier about a center axis of the carrier perpendicular to the connection side; and
wherein a frame-like interruption in the mirror layer is located in each case between the dummy regions and the contact regions, wherein an average width of the interruption is at most 250 μm.
2. The organic light-emitting diode according to claim 1 , wherein the contact regions and the dummy regions each extend along edges of the carrier on the connection side and are planar.
3. The organic light-emitting diode according to claim 2 , wherein the dummy regions directly adjoin one of the edges and, when viewed in plan view onto the connection side, are each surrounded on three sides by one of the contact regions.
4. The organic light-emitting diode according to claim 2 , wherein precisely one of the contact regions extends along precisely one of the edges and the contact regions and the dummy regions are located at at least two or at precisely two mutually opposing edges.
5. The organic light-emitting diode according to claim 1 , comprising precisely one plane of mirror symmetry perpendicular to the connection side.
6. The organic light-emitting diode according to claim 5 , wherein the plane of mirror symmetry extends parallel or perpendicular to a longitudinal direction of the carrier.
7. The organic light-emitting diode according to claim 5 , wherein the plane of mirror symmetry extends through two mutually opposing corners of the carrier.
8. The organic light-emitting diode according to claim 2 , wherein in each case at least two or more of the dummy regions are located at two or more of the edges.
9. The organic light-emitting diode according to claim 1 , wherein the base area of at least one of the dummy regions amounts to between 10% and 40% inclusive of the area of the adjoining contact region.
10. The organic light-emitting diode according to claim 1 , wherein the diode comprises at least two of the first contact regions and of the second contact regions.
11. The organic light-emitting diode according to claim 10 , wherein the diode comprises precisely two first contact regions and precisely two second contact regions.
12. The organic light-emitting diode according to claim 10 , wherein the first contact regions and the second contact regions each extend along at least two edges of the connection side.
13. The organic light-emitting diode according to claim 1 , wherein the dummy regions and the contact regions are visually indistinguishable with the naked eye, when viewed from a front of the carrier opposite the connection side and/or from the connection side.
14. An apparatus comprising:
an organic light-emitting diode according to claim 1 ; and
a holder that comprises a plurality of electrical contact pins, wherein a contact region of the light-emitting diode is directly connected electrically with a contact pin of the holder.
15. An organic light-emitting diode, comprising:
a carrier with a connection side;
an organic layer sequence with at least one active layer configured to generate radiation;
a mirror layer on the connection side;
a first electrical contact region and a second electrical contact region in each case on the connection side for electrical contacting the organic layer sequence; and
a plurality of electrical dummy regions on the connection side the dummy regions being electrically insulated from the contact regions;
wherein the mirror layer is present both in the dummy regions and in the contact regions;
wherein at least two of the dummy regions are arranged in such a way that base areas of these dummy regions cannot be congruently superimposed merely by arbitrary rotation of the carrier about a center axis of the carrier perpendicular to the connection side;
wherein a frame-like interruption in the mirror layer is located in each case between the dummy regions and the contact regions, an average width of the interruption being at most 250 μm;
wherein the dummy regions and the contact regions are visually indistinguishable with the naked eye, when viewed from a front of the carrier opposite the connection side and/or from the connection side;
wherein the dummy regions are each surrounded on three sides or on four sides by one of the contact regions when seen in top view onto the connection side; and
wherein base areas of the dummy regions amount to between 5% and 10% inclusive of an area of the adjoining contact region.
16. An organic light-emitting diode, comprising:
a carrier with a connection side;
an organic layer sequence with at least one active layer configured to generate radiation;
a mirror layer on the connection side;
a first electrical contact region and a second electrical contact region on the connection side for electrical contacting of the organic layer sequence; and
a plurality of electrical dummy regions on the connection side, the dummy regions being electrically insulated from the contact regions;
wherein the mirror layer is present both in the dummy regions and in the contact regions;
wherein at least two of the dummy regions are arranged in such a way that base areas of these dummy regions cannot be congruently superimposed by arbitrary rotation of the carrier about a center axis of the carrier perpendicular to the connection side;
wherein the organic light-emitting diode comprises precisely one plane of mirror symmetry perpendicular to the connection side; and
wherein the plane of mirror symmetry extends through two mutually opposing corners of the carrier.
17. The organic light-emitting diode according to claim 16 , wherein the contact regions and the dummy regions each extend along edges of the carrier on the connection side and are planar.
18. The organic light-emitting diode according to claim 16 , wherein the base area of at least one of the dummy regions amounts to between 10% and 40% inclusive of the area of the adjoining contact region.
19. The organic light-emitting diode according to claim 16 , wherein the diode comprises precisely two first contact regions and precisely two second contact regions.
20. The organic light-emitting diode according to claim 16 , wherein the dummy regions and the contact regions are visually indistinguishable with the naked eye, when viewed from a front of the carrier opposite the connection side and/or from the connection side.