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.
Specifically, model numbers and laptop model names. While I can usually find a Model Number on the bottom of the laptop, the model name is always indicated, and seems to be rather fast and loose when comparing the two. I'm typing this on an old XPS M140 I keep around, with a model number of PP19L.