An active matrix OLED apparatus comprises a plurality of pixels each including a layer of three sub-pixel anodes, a transparent cathode layer, and a layer of three sub-pixel OLED emitters disposed between the layer of three sub-pixel anodes and the cathode layer. Each of the plurality of pixels further includes a quantum dot semiconductor nanocrystal layer disposed above the transparent cathode layer, the quantum dot layer comprising a first quantum dot sub-pixel layer having a photoluminescent emission in a first red color wavelength range substantially between 780 to 622 nm, wherein the first quantum dot sub-pixel layer being disposed over one of the three sub-pixel OLED emitters having a light emission wavelength in the first red color wavelength range. The OLED apparatus further includes a controller configured to independently address each of the three sub-pixel OLED emitters via the transparent cathode layer and each of the three sub-pixel anodes.