Built on an IPS panel with 4 times the resolution of full HD (UHD 3840 x 2160 resolution), the QD-84 delivers impeccable visual experience from all viewing angles while its built-in speakers satisfy the user?s auditory enjoyment. The DisplayPort 1.2 supports true 4K content at 60Hz refresh rate without any delay messages. With the USB playback function and OPS slot, the 84? display supports cable-less multimedia sharing via IR remote controller. Moreover, the 8 handles at the rear side make the adjustment of the large screen to landscape or portrait easier for applications in the public environment.