HD screens are like high-end cell phones: everybody has one and they all look pretty good. Now that we've affordably shrunk 1920 x 1080-pixel screens to the size of a pack of gum, the next phase in digital display technology will be Ultra HD--panels that display four-times the current resolution; double the pixels across and double the pixels up and down.

Standards are in place for such "4K" monitors--so called for a horizontal resolution that approaches 4,000 pixels. They include DisplayPort 1.2, HDMI 2.0 and Thunderbolt 2. Driving the segment of the industry are the fields of digital media production, CAD/CAM, medical imaging, financial and of course gaming. This month's Tech Ten covers two of the handful of Ultra HD products currently available, plus a variety of digital display technologies being offered for various niches.