| abstract |
The present invention provides an organic compound, an organic light-emitting display panel and applications thereof. The organic compound has the structure shown in formula I. The nitrogen atom of the pyrimidine in the acceptor of the present invention forms an intramolecular hydrogen bond with the hydrogen atom in the donor, adjusts the torsion angle between D-A, obtains suitable HOMO and LUMO distribution, improves the strength of the oscillator, and at the same time enhances the rigidity of the molecule, which is beneficial to The non-radiative transition of the molecule is inhibited; the para-position substitution in the organic compound provided by the present invention makes the carbonyl group, pyrimidine and donor group in the molecule linearly arranged, and the horizontal orientation degree of the molecule is improved, which is beneficial to improve the optical coupling efficiency and improve the device. efficiency. |