A:Answer Like most, if not all other TVs, the LG CX 48 inch Class 4K Smart OLED TV w/ AI ThinQ® (48.2'' Diag), Model # OLED48CXPUB can be used as a computer monitor by connecting your PC/Laptop to any of its four HDMI ports. For it to display proper Chroma 4:4:4, which is important for reading text, it must be on 'PC' mode. However, 4:4:4 doesn't work on 1080p @ 120Hz.. If using it as a computer monitor, you will need to avoid displaying static content frequently and for long periods...^IFV