INK COMPOSITION FOR OLED PACKAGING AND APPLICATION THEREOF

Provided are an ink composition comprising a POSS structure and an application thereof. The ink composition comprises the following components in percentage by weight: 20-40% of a monomer containing the POSS structure, 50-70% of a photocuring monomer, 1-10% of a photoinitiator; and the monomer containing the POSS structure contains a repeating unit as shown in general formula (R-SiO1.5)n, wherein at least one R group is selected from a structure having acryloyloxy or methacryloyloxy. By introducing the POSS structure into the ink composition for OLED packaging, the ink composition has a better packaging effect, and an organic packaging layer prepared from the ink has extremely low water vapor permeability and oxygen permeability, thereby being capable of effectively prolonging the service life of an OLED device. In addition, the ink composition can effectively reduce the preparation cost and the process difficulty of an OLED packaging film by means of the rationalization of a component proportion. L'invention