Organic light-emitting device and display device
A technology of organic light-emitting devices and light-emitting layers, applied in organic semiconductor devices, electric solid-state devices, semiconductor devices, etc., can solve the problems of low efficiency and stability of organic light-emitting devices, unbalanced carrier transport, etc., and achieve enhanced excitons. Utilization, ensuring full utilization, preventing energy loss
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Embodiment 1
[0039] Embodiment 1 provides an organic light emitting device, please refer to figure 1 , figure 1 Shown is a schematic structural diagram of the organic light emitting device 100 provided in this embodiment. The organic light emitting film device 100 includes a hole injection layer 10, a hole transport layer 20, an electron blocking layer 30, a first exciton confinement layer 40, a light emitting layer 50, a second exciton confinement layer 60, an electron transport layer 80 and an electron injection Layer 90.
[0040] Wherein, the hole transport layer 20 is arranged on the hole injection layer 10; the electron blocking layer 30 is arranged on the hole transport layer 20; the first exciton confining layer 40 is arranged on the electron blocking layer 30; the light emitting layer 50 is arranged on the second The first exciton confinement layer 40 ; the second exciton confinement layer 60 is disposed on the light emitting layer 50 ; the electron transport layer 80 is disposed...
Embodiment 2
[0051] The organic light-emitting device in this embodiment is also provided with a donor light-emitting layer 510 and an acceptor light-emitting layer 520, which are roughly the same as the corresponding structure in Example 1. For the same structure, refer to the corresponding description in Example 1. I won't repeat them here. The main difference between the two is that no electron blocking layer is provided in the organic light emitting device 100, the acceptor light emitting layer 520 uses a thermally activated delay material, the donor light emitting layer 510 does not use a thermally activated delay material, and the donor light emitting layer 510 uses Electron blocking material, the organic light emitting device 100 further includes a hole blocking layer 70 , and the hole blocking layer 70 is disposed between the electron transport layer 80 and the second exciton confinement layer 60 .
[0052] see figure 2 , figure 2 A schematic structural diagram of the organic l...
Embodiment 3
[0054] The organic light-emitting film layer in this embodiment is also provided with a donor light-emitting layer 510 and an acceptor light-emitting layer 520, which are roughly the same as the corresponding structure in Example 1. For the same structure, refer to the corresponding description in Example 1. , which will not be repeated here. The main difference between the two is that both the acceptor light-emitting layer 520 and the donor light-emitting layer 510 use thermally activated retardation materials, and the organic light-emitting device 100 also includes a hole blocking layer 70, which is arranged on the electron transport layer. 80 and the second exciton confinement layer 60.
[0055] see image 3 , image 3 A schematic structural diagram of the organic light emitting device 100 provided in this embodiment.
[0056] At this time, the ratio of the thermally activated delay material used in the donor light-emitting layer 510 to the thermally activated delay mate...
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Abstract
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