You are confusing a LCD's aspect ratio with resolution. A letterbox or wide screen format will have a smaller number for vertical pixels than an old 4:3 screen. That does not necessarily change the resolution of the displayed image. That will depend more on the image's own aspect ratio.
What you apparently want is a business laptop with a vertical number of pixels in excess of 1000. To really find that, you need to specify what size screen you are willing to tote around.
A good option to meet your criterion would be the Lenovo W510 with a 15.6-in LCD at 1920x1080 pixels. There is a dock port as well.