Organic EL element and organic EL device
View Patent ↗According to one embodiment, an organic EL element has a first electrode on a first substrate, a first carrier transport layer on the first electrode, an emitting layer on the first carrier transport layer, a second carrier transport layer on the emitting layer, a second electrode on the second carrier transport layer, a first heat absorbing layer on the second electrode, the first heat absorbing layer being separated from a center of the second electrode, and a second substrate on the first heat absorbing layer.
1. An organic EL element comprising:
a first electrode on a first substrate;
a first carrier transport layer on the first electrode;
an emitting layer on the first carrier transport layer;
a second carrier transport layer on the emitting layer;
a second electrode on the second carrier transport layer;
a first heat absorbing layer on the second electrode, the first heat absorbing layer being separated from a center of the second electrode; and
a second substrate on the first heat absorbing layer.
2. The element of claim 1 , wherein the first heat absorbing layer is a carbon layer.
3. The element of claim 1 , wherein the first heat absorbing layer is an organic material layer.
4. The element of claim 3 , wherein a material of the organic material layer is identical to at least of one a material of the first carrier transport layer, a material of the emitting layer and a material of the second carrier transport layer.
5. The element of claim 1 further comprising a heat releasing module configured to release heat absorbed by the first heat absorbing layer.
6. The element of claim 5 , wherein the heat releasing module is arranged at an outside of an area sandwiched between the first and the second substrates.
7. The element of claim 1 further comprising a second heat absorbing layer on the second substrate.
8. The element of claim 1 further comprising a second heat absorbing layer between the second electrode and the first heat absorbing layer.
9. The element of claim 8 further comprising a third heat absorbing layer on the second substrate.
10. The element of claim 1 , wherein light emitted by the emitting layer is take from a side of the second substrate to an outside, and
the center of the second electrode is separated from the first heat absorbing layer, and a periphery of the second electrode contacts with the first heat absorbing layer.
11. The element of claim 1 , wherein light emitted by the emitting layer is taken from a side of a first substrate to an outside.
12. An organic EL element comprising:
a first electrode on a first substrate;
a first carrier transport layer on the first electrode;
an emitting layer on the first carrier transport layer;
a second carrier transport layer on the emitting layer;
a second electrode on the second carrier transport layer;
a second substrate on the second electrode, the second substrate being separated from a center of the second electrode, the second substrate comprising a first face facing the second electrode and a second face opposite from the second face; and
a first heat absorbing layer on the second face of the second substrate.
13. The element of claim 12 , wherein the first heat absorbing layer is a carbon layer.
14. The element of claim 12 further comprising a heat releasing module configured to release heat absorbed by the first heat absorbing layer.
15. An organic EL device comprising:
a first substrate;
a first electrode on the first substrate;
a first carrier transport layer on the first electrode;
an emitting layer on the first carrier transport layer;
a second carrier transport layer on the emitting layer;
a second electrode on the second carrier transport layer;
a first heat absorbing layer on the second electrode, the first heat absorbing layer being separated from a center of the second electrode;
a second substrate on the first heat absorbing layer; and
a sealant configured to seal the first substrate and the first heat absorbing layer.
16. The device of claim 15 further comprising a heat releasing module configured to release heat absorbed by the first heat absorbing layer.
17. The device of claim 15 further comprising a second heat absorbing layer on the second substrate.
18. The device of claim 15 further comprising a second heat absorbing layer between the second electrode and the first heat absorbing layer.
19. An organic EL device comprising:
a first substrate;
a first electrode on the first substrate;
a first carrier transport layer on the first electrode;
an emitting layer on the first carrier transport layer;
a second carrier transport layer on the emitting layer;
a second electrode on the second carrier transport layer;
a second substrate on the second electrode, the second substrate being separated from a center of the second electrode, the second substrate comprising a first face facing the second electrode and a second face opposite from the second face; and
a first heat absorbing layer on the second face of the second substrate,
a sealant configured to seal the first substrate and the second substrate.
20. The device of claim 19 further comprising a heat releasing module configured to release heat absorbed by the first heat absorbing layer.