Organic EL Compound with High Hole Mobility for Low Voltage Operation

The patent modifies the molecular structure of charge transporting materials by introducing specific substituents (fluoroalkyl groups, aryl groups, heteroaryl groups) at defined positions on the core aromatic amine structure. These structural parameter changes optimize the material's electron mobility and HOMO/LUMO energy levels, enabling efficient charge transport at lower driving voltages, which simultaneously reduces power consumption and extends device lifetime.

The patent employs composite molecular structures combining aromatic amine cores with various functional groups (fluoroalkyl, aryl, heteroaryl) to create charge transporting materials with synergistic properties. The aromatic amine core provides high hole mobility while the attached functional groups modulate electron mobility and energy levels, achieving balanced charge transport that reduces operating voltage and improves overall device performance and longevity.

The patent optimizes the HOMO and LUMO energy levels of the charge transporting material through systematic modification of molecular structure. By adjusting these energy parameters, the material achieves better energy level alignment with the light-emitting layer, facilitating efficient electron-hole recombination and enhancing emission efficiency while maintaining low operating voltage for reduced power consumption.

The patent uses the aromatic amine molecular framework as a core structure that successfully copies and transfers charge transport functionality from conventional materials while incorporating improved features. The core structure serves as a template that replicates essential charge transporting behavior while the added functional groups enhance electron mobility and energy level matching, resulting in superior emission efficiency.