I wouldn't expect there is any need for a driver update, however there likely may have been several video/graphic card updates. If you want to improve your display, more likely the latter will be of more use if you haven't done that already. As far as color calibration, the monitor driver does not contain a management program per se, however there are 3rd part programs that have their own calibrator if that is needed. Color is fully adjustable however with the on screen menu (OSD).
<ADMIN NOTE: Broken link has been removed from this post by Dell>
Dell Latitude 6430u, w/USB 3.0 dock, Venue 8 Pro Tablet