mole4dR. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), moled, in Geiriadur Prifysgol Cymru On (in Welsh), University of WalesOLED is an emerging technology for thin, efficient and brht displays. There are two types of OLEDs: Passive-Matrix (PMOLED) and Active-Matrix (AMOLED). This article