Every LCD Display has a Resolution type. The Resolution type determines the sharpness and clarity of the image displayed. The different resolution types such as XGA, SXGA, and WXGA, have different minimum and maximum resolution values. The higher the resolution, sharper will be the image on your screen. However, it is important to note that you should only buy LCD Screens with the same resolution type as shipped with the original system. If you don’t know the resolution type of your PC screen, please call the sales queue. They can help you find the right product. We recommend that use the Service Tag look up feature in the Parts For Your Dell tool to choose the correct LCD Display. This feature will allow us to determine the system, screen type, and size requirements and make correct product recommendations. When a LCD is listed to be compatible with a system, it is assured that the interface type and the form factor are compatible.