TRIPLET-TRIPLET ANNIHILATION UP-CONVERSATION FOR DISPLAY AND LIGHTING APPLICATIONS

摘要

Novel devices comprising a layer including compounds that are capable of triplet triplet annihilation up conversation (TTA-UC) and techniques for operating the same are provided. In particular, the up-conversation layer absorbs light emitted by the OLED device and emits up-converted light with shorter wavelength in response. These devices and techniques may be used to provide improved lifetime for blue emitting devices.

主权项

1. A method of operating a device, comprising:
driving a first organic light emitting device to generate light; absorbing the light in a first triplet-triplet annihilation up-conversation layer; shortening the wavelength of the light using triplet-triplet annihilation up-conversation; and emitting the light having a shortened wavelength.