The i1 Display is a color calibration device used to ensure accurate color representation on monitors, projectors, and other display devices. The i1 Display typically refers to hardware products from X-Rite, such as the i1Display Pro or previous versions like the i1 Display 2, which help calibrate and profile displays for color-critical work (such as graphic design, photography, video editing, etc.).

The Windows driver for the i1 Display device is software that allows your computer's operating system to interface with the i1 Display hardware. This driver is usually bundled with a software package that includes tools for color calibration and profiling.