Significant advances in solid-state lighting technology have been made with the appealing use of new hyperfluorescent active layers and their respective OLEDs. Here, the Foster resonance energy transfer (FRET) between a TADF and fluorescent emitter plays a primary role in the device efficiency of blue-, green-, red-as well as whiteemitting HF-OLEDs. In addition, circularly polarized HF-OLEDs using chiral emitters are also possible. In contrast to fluorescent OLEDs, all-hyperfluorescent OLEDs have high color purity (owing to their narrow emission) and significantly enhanced EQEs. for OLED is also a big challenge because it is very difficult to design high triplet energy host materials. In this context, the recent work of the Bryce group should be followed, which provides molecular design directions for obtaining very high triplet energy host materials. Recently , it was observed that phosphine oxide-free hosts perform better in OLEDs and therefore, the design of new phosphine oxide-free hosts and their use in devices should be investigated. Most of the reported MR-TADF emitter exhibits weak TADF emission and therefore, the design of efficient MR-TADF terminal emitters with high kRISC is further required to have efficient HF-OLEDs. Finally, dyads based on covalent/non-covalent emitters could be explored; since they have the capacity to control distance towards an enhanced FRET process.