In summary, Jiang et al. have successfully developed a rational anchoring strategy to firstly investigate molecular horizontal dipole ratio for solution processable AIE-TADF emitters. This work not only reports the unprecedented EQE in solution processable non-doped OLEDs and MR OLEDs, but also firstly sheds new light on molecular horizontal orientation for solution-processed TADF emitters. What deserves to be further mentioned is that the peripheral functional group promotes the realization of molecular horizontal orientation from isotropy, opening a new strategy toward easy access to high-performance solution processable organic emitters.