Organic light-emitting display panel and display device
The present invention provides an organic light-emitting display panel, comprising: a substrate; a light-emitting unit provided on the substrate; and a package structure covering the light-emitting unit. The organic light-emitting display panel further comprises a thermally conductive structure, and the thermally conductive structure is at a side of the light-emitting unit far away from the substrate. Correspondingly, the present invention further provides a display device. The thermally conductive structure provided by the present invention can rapidly dissipate the heat generated by the light-emitting unit, so that the organic light-emitting display panel has an improved performance and the display device has an extended service life.
1. An organic light-emitting display panel, comprising:
a substrate;
a light-emitting unit provided on the substrate; and
a package structure covering the light-emitting unit;
wherein the organic light-emitting display panel further comprises a thermally conductive structure, and the thermally conductive structure is at a side of the light-emitting unit distal to the substrate; and
wherein the package structure comprises a package adhesive layer, and the thermally conductive structure comprises a thermally conductive particle provided in the package adhesive layer.
2. The organic light-emitting display panel according to claim 1 , wherein the thermally conductive particle has a diameter ranging from 1 μm to 3 μm.
3. The organic light-emitting display panel according to claim 1 , wherein the thermally conductive particle has a thermal conductivity ranging from 100 W/mK to 8,000 W/mK.
4. The organic light-emitting display panel according to claim 1 , wherein a material of the thermally conductive particle comprises any one or more of silver, copper, gold, aluminum, diamond, graphite, graphene, and carbon nanotube.
5. The organic light-emitting display panel according to claim 1 , wherein the thermally conductive structure comprises a thermally conductive layer provided between the light-emitting unit and the package structure.
6. The organic light-emitting display panel according to claim 5 , wherein the thermally conductive layer has a thickness ranging from 1 μm to 100 μm.
7. The organic light-emitting display panel according to claim 5 , wherein the thermally conductive layer has a thermal conductivity ranging from 100 W/mK to 8,000 W/mK.
8. The organic light-emitting display panel according to claim 5 , wherein a material of the thermally conductive layer comprises any one or more of silver, copper, gold, aluminum, diamond, graphite, graphene, and carbon nanotube.
9. The organic light-emitting display panel according to claim 1 , wherein the package structure further comprises a cover plate provided at a side of the package adhesive layer distal to the substrate, the organic light-emitting display panel further comprises a heat dissipation structure provided at a side of the cover plate distal to the substrate, and an outer surface of the heat dissipation structure has a larger area than that of a surface of the cover plate on which the heat dissipation structure is provided.
10. The organic light-emitting display panel according to claim 5 , further comprising a heat dissipation structure provided at a side of the package structure distal to the substrate, wherein an outer surface of the heat dissipation structure has a larger area than that of a surface of the package structure on which the heat dissipation structure is provided.
11. The organic light-emitting display panel according to claim 9 , wherein the heat dissipation structure comprises a heat sink and a plurality of fins which are provided on the heat sink and have an interval therebetween, and the heat sink is provided on the package structure.
12. The organic light-emitting display panel according to claim 11 , wherein each of the plurality of fins has a diameter ranging from 1 mm to 5 mm and a height ranging from 1 mm to 15 mm, and two adjacent ones of the plurality of fins have an interval ranging from 2 mm to 5 mm therebetween.
13. The organic light-emitting display panel according to claim 11 , wherein the plurality of fins and the heat sink are integrally formed.
14. The organic light-emitting display panel according to claim 1 , wherein a water absorption particle is provided in the package adhesive layer.
15. The organic light-emitting display panel according to claim 14 , wherein a material of the water absorption particle comprises calcium oxide.
16. The organic light-emitting display panel according to claim 14 , wherein the package adhesive layer comprises an inorganic film and an organic film which are provided sequentially on the light-emitting unit, a material of the inorganic film comprises any one or more of silicon nitride, silicon oxide, and silicon oxynitride, a material of the organic film comprises resin, and the thermally conductive particle and the water absorption particle are provided in the organic film.
17. A display device, comprising the organic light-emitting display panel according to claim 1 .
18. The organic light-emitting display panel according to claim 1 , wherein the thermally conductive structure comprises a thermally conductive layer provided between the light-emitting unit and the package structure.
19. The organic light-emitting display panel according to claim 10 , wherein the heat dissipation structure comprises a heat sink and a plurality of fins which are provided on the heat sink and have an interval therebetween, and the heat sink is provided on the package structure.