Panel Type
There are many types of panels, each with their own pros and cons.
IPS
IPS, or in-plane-switching, is a type of panel where there is a layer of liquid crystals between two glass surfaces, and the crystals are in parallel to the surfaces in predetermined directions and are rotated by an electric field in order to generate an image, similar to a shutter of a camera. It is the most commonly used panel type, and in laptops, one can see a wide variety of IPS panels, from low-resolution-and-refresh-rate panels used by cheap office laptops, to high-end ones that can be found in expensive gaming and workstation laptops. Most IPS panels found in laptops' monitors have a good contrast ratio, at around 1000-to-1 (1000:1), and when calibrated, they can have a good coverage of color standards like sRGB, DCI-P3 and so on.