Stackable luminescent device integrating blue light emitting diode with red organic light emitting diode
Su Kang1, 2, Li Jing1, 2, †, Ge Chang1, 2, Lu Xing-Dong1, 2, Li Zhi-Cong1, 2, Wang Guo-Hong1, 2, Li Jin-Min1, 2
       

Direct view image (left) and equivalent circuit diagram of integrated LED–OLED device (right).