The computer monitor battle has been constantly moving from one arena to another. First, it was TN against IPS, then LCD versus OLED. It became a war of megapixel numbers before it became a debate between flat and curved. Now Samsung is bringing that history to the present battleground: input connections. At CES 2018, the consumer electronics giant will be showing off its new, ultrawide CJ791, which it touts is the first monitor to combine QLED, not OLED, display technology, smooth curves, and, most importantly, Thunderbolt 3 connectivity.