Disclosed is an ink composition for an organic EL thin film, that is, an ink composition for the formation of an organic EL thin film including an organic EL material, a liquid crystalline compound with a bandgap of 3.5 eV or more, and a solvent having an organic compound. Furthermore, the liquid crystalline compound preferably contains no functional group of -CN, -OH, or -F. Moreover, the liquid crystalline compound preferably has a molecular dipole moment of 4.0 debyes or less.
本发明公开了一种用于有机电致发光薄膜的油墨组合物,即一种用于形成有机电致发光薄膜的油墨组合物,包括有机电致
发光材料、带隙为 3.5 eV 或更高的液晶化合物和具有有机化合物的溶剂。此外,液晶化合物最好不含-CN、-OH或-F官能团。此外,液态结晶化合物的分子偶极矩最好在 4.0 德贝或以下。