Functionality confirmed. No dead pixels. Slight scratch on the bottom left of the liquid tablet (see photo 6). One white core is used. I purchased this after being recommended by an acquaintance and used it a few times, but I'm selling it because it's become a sub-monitor. This is a used item, so please refrain from purchasing if you are sensitive to such things. Price negotiation is possible, but only to a small extent. Feel free to contact me.