Eizo new HDR reference monitor is the first to have built in calibration sensors. The first generation was made up of designs using modulated LED backlights, and those are likely to remain a staple of mid-market offerings for some time to come. The second was probably high-output OLED, although that was always a tricky and thoroughbred technology and achieved prominence barely before it essentially succumbed to practical problems.
So, the dual-layer LCD technology that finally hit retail in the last year or so is probably the third try for HDR, and with any luck something we will see in more general use soon. The company announcement for the Color Edge PROMINENCE CG3146 only mentions that it has an 'LCD panel' capable of 1000-nit HDR pictures. But we might reasonably suspect that it….