pvk pbd irppy was 1 1 0 01 and a thickness of alq3 is 20 nm as described above a device having a mixture film using a phosphorescent material of the present invention has an efficiency of 24 9 cd a at the same luminance condition of 10 cd a while a conventional green light emitting organic polymer el device fabricated by a spin coating has a maximum efficiency of about 10 cd a accordingly transfer characteristics of an organic polymer el device of the present invention are excellent as the efficiency is improved by more than 100 furthermore an edge roughness of the present device after a laser induced thermal imaging was also good and is 5 u03bcm or less poly vinylcarbazole pvk manufactured by sigma aldrich corporation as a matrix of a host substance and 4 4 u2032 n n u2032 dicarbazole biphenyl cbp manufactured by universal display corporation as a low molecular hole transport material were respectively dissolved into xylene in the range of 1 0 to 5 0 wt an organic complex including iridium that is tris 2 phenylpyrridine iridium irppy manufactured by universal display corporation as a phosphorescent dopant was dissolved into dichloroethane dce manufactured by sigma aldrich corporation in a concentration of 0 1 to 1 0 each of the materials was mixed in appropriate weight ratios after completely dissolving the solutions by sufficiently agitating each solution at a temperature of 60 u00b0 c for more than 3 hours in order to control a wetting property and a drying ratio when pouring an ink jet solution an anisole or hexane dichloromethane are added to the mixed solution thereby preparing a solution for an ink.