Organic light-emitting device
The invention relates to an organic light-emitting component which has an organic functional layer stack ( 3 ) having at least one light-emitting layer, which is designed to generate light during operation of the component, a transparent first electrode ( 2 ) and a transparent second electrode ( 4 ), which are designed to inject charge carriers into the organic functional layer stack ( 3 ) during operation, and a heat distribution layer ( 9 ), which is applied over the electrodes ( 2, 4 ) and the organic functional layer stack ( 3 ) and which has at least one plastic layer ( 10 ) and a highly heat conductive layer ( 11 ), wherein the heat distribution layer ( 9 ) has at least one transparent sub-region ( 91 ) and at least one non-transparent sub-region ( 92 ).
1. Organic light-emitting device, comprising
an organic functional layer stack with at least one light-emitting layer, which is configured to generate light when the device is in operation,
a transparent first electrode and a transparent second electrode, which are configured to inject charge carriers into the organic functional layer stack when in operation, and
a heat distribution layer, which is applied over the electrodes and the organic functional layer stack and which comprises at least one plastics layer and one highly thermally conductive layer, wherein the heat distribution layer comprises at least one transparent sub-region and at least one non-transparent sub-region.
2. Device according to claim 1 , wherein the highly thermally conductive layer is formed by a metal layer.
3. Device according to claim 1 , wherein the plastics layer and the highly thermally conductive layer are arranged at least in part laterally next to one another in the heat distribution layer.
4. Device according to claim 1 , wherein the heat distribution layer is transparent in an edge region and/or in a central region.
5. Device according to claim 1 , wherein the highly thermally conductive layer is non-transparent and the plastics layer is transparent.
6. Device according to claim 1 , wherein the highly thermally conductive layer comprises a clearance in the at least one transparent sub-region.
7. Device according to claim 1 , wherein the highly thermally conductive layer is free of the plastics layer on at least one main surface.
8. Device according to claim 1 , wherein the highly thermally conductive layer is free of the plastics layer on both main surfaces.
9. Device according to claim 1 , wherein the highly thermally conductive layer is covered on at least one main surface by the plastics layer.
10. Device according to claim 1 , wherein the plastics layer completely encloses the highly thermally conductive layer.
11. Device according to claim 1 , wherein a transparent encapsulation arrangement is arranged over the electrodes and the functional layer stack, to which encapsulation arrangement the heat distribution layer is applied.
12. Device according to claim 11 , wherein the heat distribution layer is applied with a transparent bonding layer to the encapsulation arrangement and the bonding layer is in direct contact with the encapsulation arrangement and the heat distribution layer.
13. Device according to claim 11 , wherein the encapsulation arrangement takes the form of a thin-film encapsulation.
14. Device according to claim 1 , wherein the heat distribution layer comprises a transparent barrier layer on at least one main surface.
15. Device according to claim 14 , wherein the barrier layer is applied at least directly to the plastics layer.
16. Device according to claim 14 , wherein the barrier layer completely covers the at least one main surface.
17. Device according to claim 14 , wherein the barrier layer is arranged on the side of the heat distribution layer facing the organic functional layer stack.
18. Device according to claim 14 , wherein the barrier layer comprises at least one oxide, nitride or oxynitride.
19. Device according to claim 1 , wherein the heat distribution layer extends at least in part as far as the edge of the organic light-emitting device.
20. Device according to claim 1 , wherein the plastics film contains carbon particles.