OLED in technical language
OLED televisions have an unrivaled image quality. That's mostly because of the perfect black levels. They create a large contrast, which is the most visible aspect of good image quality. The latest model in the LG OLED series, the G6, has a contrast ratio or at least 1.080.000:1. To compare: the best LED TVs have a ratio of 7000:1. Thanks to the large contrast ratio, you can enjoy rich, lifelike colors, and you can see a lot of detail in the darkest parts of the screen. An OLED has perfect image angles, so you'll have the same high image quality from every place in the room.
Displaying fast movements
Another special feature is the way an OLED screen displays motion. The OLED pixels switch within a millisecond. The image is built up so fast, you won't see panel smearing, which is something cheaper LED TV have. You'll see a streak of color after a moving object. A disadvantage of this fast image buildup is the blur due to persistence of vision. A video with a frequency of 50 Hz has images that stop for 20 ms. Every eye movement leads to blurs. OLED TVs solve this by adding image interpolation, also known as adding extra frames to the video.
Myths about OLED
There are a number of myths about OLED televisions. One of them being that they burn in. The LG televisions reset the pixels as soon as a voltage threshold is crossed. As a result, you won't see any unwanted image information. Another myth is that the lifespand of an OLED panel is limited. Due to the decreasing intensity of the smaller, blue pixels, the screen would suffer from loss of color. The OLED televisions by LG don't have this problem. The pixels provide white light, that turns into a color with a filter. The wear is the same for all pixels. LG states their OLED TVs have a lifespan of 30,000 hours. That's 3 hours per day, for 27 years.