4n electron polynary fused ring compound with remote resonance effect and application thereof

The invention belongs to the field of organic light-emitting materials, and particularly discloses a 4n electron polynary fused ring compound with a remote resonance effect and application thereof, the 4n electron polynary fused ring compound with the remote resonance effect can be used as an efficient light-emitting material, can also be used as an electron-withdrawing acceptor unit, and can be used as an electron-withdrawing acceptor unit. And a donor group is further grafted on the periphery to develop into a TADF material. The material is simple to synthesize, a rigid framework is convenient for reducing the luminous half-peak width (FWHM), and a new strategy is provided for developing a narrow FWHM material. Heteroatoms such as nitrogen atoms, oxygen atoms and sulfur atoms are embedded into the rigid framework, so that the thermal stability and the luminous efficiency are improved. And the spectrum is easy to adjust by regulating and controlling the peripheral hooking groups. An electroluminescent spectr