This has become a common display type for mid-range to high-end phones. OLED/AMOLED. OLED & AMOLED utilizes 'organic' LEDs which emits light and in the majority of cases does away with the need for the back-light of an LCD display resulting in a potentially thinner panel.
1 The model number is located on a small label located on the frame around the computer screen. (e.g., VGN-FW550F)  The computer information and compliance label, located on the bottom of the laptop case, indicates the actual model number.
HP Model Number. Compaq Model Number. Once your computer is on and Windows is loaded you may be able to find your model number by right clicking on Computer (or My Computer, depending on your version of Windows) in your start menu and clicking on properties. Your model number may be displayed in the window that opens.