A study on the electric and optical characteristics of green OLED applied index matching film

We applied index matching film to improve the luminance of green OLED. The structures of index matching films are Glass/TiO2/SiO2/ITO and SiO2/TiO2/ Glass/ITO and designed with Macleod simulator. The OLED luminance of Glass/TiO
₂
/SiO
₂
/ITO and SiO
₂
/TiO
₂
/Glass/ITO was 15, 400 cd/m and 13, 000 cd/m
²
, respectively. The luminance of each device was increased 5~6 times compared to the device without applying index matching film.