To understand how OLED technology can promise such exciting developments, we need to take a step back and look at how it actually works.
Each OLED display pixel consists of a stack of different thin organic layers sandwiched between an anode and a cathode. When a small electrical field is applied, the OLED starts to emit light. When the electric field is turned off, the OLED stops emitting light, yielding a black pixel. The color emitted by the OLED is defined by the organic materials used and the stack design.
Because the organic material itself is emitting light, OLED displays have no need for a backlight, unlike LCD screens. This means that with OLED you can achieve a true black on the screen.
In mobile screens, the lack of backlight also means OLED consumes less power than LCD, and makes them lighter and thinner too. And in addition, OLEDs can be applied on rigid glass or on flexible substrates like plastic or metal foils, turning virtually every surface into a display or light source.
If this wasn’t enough, OLED TV and other OLED screens also deliver unparalleled color brilliance and high contrast, creating a richer viewing experience.