Use the organic film doping and black cathode can improve the performance of the OLED oled module

The Canadian doctoral studies suggest that, The OLED instability mainly due to the aging spots from the organic layer. Precisely because of the aging of the spots, so that the quantum efficiency of the EL devices is reduced, resulting in electroluminescent brightness gradually decreases, and shorten the life of the device, to limit the field of application of the device.graphic lcd display module
To solve this problem, Dr. organic film doped with a combination of black cathode method, and effectively improve the performance of the OLED. Experimental results show that, to TPD: rubrene as a dopant incorporated into the hole-transporting layer may be extended device life; increase the CuPc buffer layer of cushioning material, prolong the life of the device; increased use of NPB: of AlQ3 mixed material of HTM / ETM mixed layer may extend the life of the device.
Xerox Corporation using a black cathode of the OLED structure of natural light reflectance reduces the performance of the device is improved. Based on the cathode of the organic metal mixed layer, it is possible to improve the contrast, reduce the growth of dark spots.COG LCD Module