| abstract |
The invention belongs to the technical field of OLED and provides a boron heterocyclic compound having a structure shown in Chemical Formula 1, wherein L 1 and L 2 are independently selected from C6-C30 aryl, C6-C30 fused aryl, C4- C30 heteroaryl, C4-C30 condensed heteroaryl; R 1 and R 2 are mainly independently selected from carbazolyl and its derivative groups, acridine and its derivative groups, diarylamine and its derivative groups. Any of the derivative groups. In the present invention, the boron heterocyclic structure serves not only as an electron acceptor group but also as a linking group. In the compound of the present invention, by inserting a large sterically hindered group on the boron atom of the boron heterocyclic ring, the aggregation of the compound molecules is avoided, and the direct accumulation of the conjugated plane to form a π aggregation or an excimer is avoided, Thus, the luminous efficiency is improved. The present invention also provides a display panel and a display device. |