From my experience, if IPS is not mentioned anywhere, then it will have a TN panel screen. Some TN panels are better than others, but you need to wait for a review about that. But since you seem to have access to the laptop, then let your eyes tell you if the screen quality is good enough for you.
For most people it would be the viewing angles that is important. How far back and forward can the screen be tilted before the image starts to fade / shift color? Or simply look bad in your opinion. If color accuracy is important, then you need to use a colorimeter which is both hardware and software. Below is an example.
http://spyder.datacolor.com/display-calibration/