My freind purchased Dell XPS 15 L502X its specifications the XPS 15(L502X) has a 15.6 inch display. 15"-16". Its provide more than enough space for work-related applications. The downside is that, at 15", you will start sacrificing portability for the larger screen, since laptops in this size range can be cumbersome to carry if you travel frequently.
This laptop’s screen has very good picture quality(1080p) and Dell service & support always good