Yeah in terms of response time, there's nothing really stopping self-emitting pixel LED technologies like OLED & MicroLED from being able to accurately hit the kiloHz refresh ranges, besides the lack of usefulness.
Although while in the smartphones market 93% of OLED displays or almost 60% of all displays are manufactured by Samsung, when it comes to TV's and monitors, it's LG who holds a near monopoly instead, being the key supplier for companies like Sony & Panasonic, while Samsung has instead pushed QLED(LCD) much harder in the high end TV & monitor space.