Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Qu Zhang

Jiajia Luo

Kailong Wu

Lin Y Yang

Xianjie Li

Jinchang Huang

Munjae Lee

Xu Wang

Kialong Wu

A thermally activated delayed fluorescent material, preparing method thereof, and an organic electroluminescent device are disclosed. The organic electroluminescent device includes an anode layer, a cathode layer, and a light-emitting layer disposed between the anode layer and the cathode layer. The light-emitting layer includes a thermally activated delayed fluorescent material. A structural formula of the thermally activated delayed fluorescent material is shown in the following structural formula I: and R-Rare electron donor units.

Thermally activated delayed fluorescent material, preparing method thereof, and organic electroluminescent device

The present disclosure relates to the field of organic light-emitting materials, and more particularly, to a blue thermally activated delayed fluorescence material, a synthesis method thereof, and use thereof. The blue thermally activated delayed fluorescence material has a following structural formula:

Blue thermally activated delayed fluorescence material, synthesis method thereof, and use thereof

The present invention provides a hole transport material, a preparation method thereof, and an electroluminescent device. Through ingenious molecular design, a xanthracene structure is combined with different electron-donating groups to synthesize a series of hole transport materials with a suitable highest occupied molecular orbital (HOMO) energy level and a suitable lowest unoccupied molecular orbital (LUMO) energy level, and a series of high-performance display devices can be manufactured using the hole transport materials provided by the present invention.

Hole transport material, preparation method thereof, and electroluminescent device

The present application provides an electroluminescent material, a method for manufacturing an electroluminescent material, and a light emitting device, by employing the strong electron-withdrawing group such as cyano, pyridine, pyrimidine, or s-triazine to enhance the electron-withdrawing property of the fluorenone receptor unit, a captodative electron effect between the electron donor unit and the electron acceptor unit in the molecule is enhanced, so that the intermolecular charge transfer property is enhanced while the red light shifts, thereby further reducing the energy level difference between the single-line energy level and the triplet energy level of the target molecule, to realize a long life span, red light emitted electroluminescent material, a method for manufacturing the electroluminescent material and a light emitting device.

Electroluminescent material, method for manufacturing same, and light emitting device

A thermally activated delayed fluorescent material includes a structural formula (I) as follows: and D1 and D2 are different electron donors. In addition, an organic light emitting diode display device includes an anode, a cathode, and an organic functional layer disposed between the anode and the cathode. The organic functional layer includes a thermally activated delayed fluorescent material, and the thermally activated delayed fluorescent material includes a structural formula (I).

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Wuhan, China

Qu Zhang