Photoresist composition for organic light emitting diode and pixel define layer prepared by using the same

摘要

The present invention relates to a photoresist composition which comprises: a photopolymerization initiator; a photosensitizer; a polyfunctional monomer; a black dye pigment; a dispersant; a binder polymer; and a solvent, wherein the binder polymer has a structure in which an acrylate double bond group or a styrene-based double bond group is bound to a polyimide containing trifluoromethyl group (-CF_3). When using the photoresist composition, the efficiency and service life of an OLED device are increased by reducing the external light reflectance.