OLED and AMOLED
On an OLED display, every pixel produces its own light. That makes black truly black, because the pixel simply stays off. AMOLED is the type commonly used in smartphones and watches.
What does OLED and AMOLED mean?
An OLED display doesn't need a backlight. Each individual pixel creates its own light and can be switched on and off separately. This gives you very high contrast, vivid colors, and an image that still looks good from the side.
AMOLED stands for “Active Matrix OLED” and describes how the pixels are driven. In everyday use, both terms mean the same thing: a self-emitting display. Manufacturers like to add their own labels to the name, but the technology behind it stays the same.
Because dark pixels don't use any power, a dark theme on an OLED display saves battery. That also makes an always-on display possible.
A general explanation of the term, not from a video. How it plays out on a specific device in everyday use is covered in the reviews below.
