Of the many sizes and shapes the best gaming monitors come in, the 34-inch ultra-wide 21:9 screen strikes a good balance between size and player immersion. It’s wider than the 32-inch 16:9 format but not as large as extreme displays like the 52-inch LG I reviewed recently. What makes them even better is QD-OLED technology, and there, Alienware is offering a nice update to last year’s AW3425DW . It’s the AW342 6 DW, and it brings a few new features, like a five-layer tandem OLED for higher light output, V-stripe RGB sub-pixels for sharper rendering, a bump from 240 to 280 Hz, and a new anti-reflective screen coating. It’s still WQHD 3440x1440 pixels, and it still offers Adaptive-Sync, HDR10, and wide gamut color, and adds Dolby Vision to its list of supported content. Let’s take a look.…