Beijing Summer Sprout Technology Co. Ltd.

Junfei Wang

Chi Yuen Raymond Kwong

Chuanjun Xia

Qiang Wang

Le Wang

Han Zhang

Yang Wang

Feng Li

Gang Yang

Jianfei Yao

Zhen Wang

Qi Zhang

Hongbo Li

Wei Cai

Cuifang Zhang

Zhihong Dai

Nannan Lu

Ming Sang

Menglan Xie

Provided is an organic electroluminescent device. The electroluminescent device includes an anode, a cathode and an organic layer disposed between the anode and the cathode, where the organic layer includes a first compound having a structure of H-L-Eand a second compound having a structure of H-L-E. The electroluminescent device containing a novel material combination has a low driving voltage, high device efficiency and a significantly improved device lifetime, which greatly improves the overall performance of the device. Further provided are an electronic equipment including the preceding electroluminescent device and use of the electroluminescent device in an electronic element module, a display apparatus or a lighting apparatus.

Organic electroluminescent device

Provided is an electroluminescent device. The electroluminescent device includes an anode, a cathode and an organic layer disposed between the anode and the cathode, where the organic layer includes at least a first compound having a structure of H-L-E and a second compound having a general formula of M(L)(L)(L). The novel material combination consisting of the first compound and the second compound can enable the electroluminescent device to obtain a lower voltage, higher efficiency and an ultra-long lifetime and can provide better device performance. Further provided are a display assembly and a compound combination.

Electroluminescent device

Provided is an organic electroluminescent device. The organic electroluminescent device has a first metal complex containing a ligand with a structure of Formula 1 and a first compound with a structure of Formula 2. Compared with the related art, a combination of such two compounds can significantly improve performance of the organic electroluminescent device, such as external quantum efficiency, power efficiency and current efficiency of the device. Further provided are an electronic apparatus including the organic electroluminescent device and a compound composition containing the first metal complex and the first compound.

Provided are an electroluminescent material and device. The electroluminescent material is a compound having an indole- and pyrrole-fused azamacrocycle structure segment which is connected to quinazoline having a substitution on a specific ring, quinoxaline having a substitution on a specific ring, or a similar structure thereof, and can be used as the host material in the electroluminescent device. These novel compounds can obtain a lower driving voltage, effectively improve device efficiency, greatly prolong device lifetime, and provide better device performance. Further provided are an electroluminescent device and a compound formulation.

Electroluminescent materials and devices

Provided are an organic electroluminescent material and device. The organic electroluminescent material is a compound having a structure of Formula 1. Those novel compounds are applicable to electroluminescent devices and can provide better device performance, such as an increased device lifetime. Further provided are an organic electroluminescent device containing the compound and a compound composition containing the compound.

Organic electroluminescent material and device thereof

Provided are an organic electroluminescent material and device. The organic electroluminescent material is a compound having a structure of Formula 1. Those novel compounds are applicable to electroluminescent devices and can provide better device performance, such as an increase in device lifetime. Further provided are an electroluminescent device containing the compound and a compound composition containing the compound.

Disclosed are an electroluminescent material and device. The compound is a compound formed by connecting an indole- and pyrrole-fused azamacrocycle to triazine or a similar structure thereof at a specific position and is used as the host material of the electroluminescent device. These novel compounds have significantly reduced evaporation temperature and better thermal stability, can effectively reduce energy consumption, which more facilitates the device manufacturing process, and in addition, can also effectively improve device efficiency and reduce device drive voltage, which can provide better device performance. Further disclosed are an electroluminescent device, a compound formulation, and a display assembly.

Electroluminescent material and device

Provided are an organic electroluminescent material and a device comprising the same. The organic electroluminescent material is a novel compound having a parent core structure formed by fusing indole and pyrrole with an azamacrocycle and bonded with benzoquinazoline or benzoquinoxaline and similar structures thereof. The organic electroluminescent material may be used as a host material in an electroluminescent device. The novel compound can provide better device performance in the electroluminescent device. Further provided are an electroluminescent device and a compound formulation.

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Beijing, China

Junfei Wang