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.
Desktop Computers. Desktop computer model numbers begin with the letters PCV, VGC, VPC or SVJ, and are located on a small label on the front of the main computer unit (case or tower). Note: The model number listed on the gray sticker on the back of the computer will not give you the correct information. You can also access the model number using Method 2 or 3 below. Method 1: Locate the small sticker on the front of the tower.