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.
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: 1  Locate the small sticker on the front of the tower. ( 2 e.g., VGC-RC210G). 3  On All-In-One desktop computers, the number is located on the right front of the computer. ( 4 e.g., VPC-L137FX).