An OLED TV uses a different image technology than an LED TV. The pixels illuminate themselves, so it doesn't need a backlight. This makes the TVs thinner and provides a stronger contrast. Each pixel lights up, dims, or turns off completely individually. This makes black truly black, so the details in dark scenes are clearly visible. LG, Samsung, Sony, and Philips have OLED TVs in various sizes. Choose the inch size that best suits your viewing distance.