The full-color Foveon X3 direct image sensor ensures outstanding resolution, richly gradated tones and images with a three-dimensional feel.

ENGADGET: Sigma finally announces price and availability for DP1 Merrill compact

The most compelling remains Pixel Qi -- a hybrid LCD technology that can be switched from a standard, full-color LCD backlit mode to a Kindle-like monochromatic reflective mode viewable in direct sunlight (while consuming 80% less power than standard LCDs).

ENGADGET: The e-Reader story of CES 2010

The HP ZR2740w also features the HP Direct Drive Architecture that transmits the color value from the workstation graphics card directly to the billion-color panel with no alteration in the display.

ENGADGET: HP goes display crazy, unveils eight new models, four IPS panels (hands-on)