Nokia is already planning for the days when its products will include active matrix OLED displays, instead of LED ones.
The Finnish phone giant has not yet released any models with AMOLED screens, but it is requiring any company that supplies it with displays of any kind to have plans to produce AMOLED products in the future, according to DigiTimes. This includes putting Research and Development money into them.
More about AMOLED
OLED (organic light-emitting diode) displays take advantage of the fact that some organic compounds glow when an electrical current is applied to them. This means there is no need of a backlight, as the individual pixels provide their own light. This allows OLED screens to be thinner and lighter than standard LEDs. Colors also tend to be more vivid.
Active-matrix OLEDs (AMOLED) require a thin film transistor backplane to turn each pixel on or off, and can make higher-resolution and larger size displays possible.
More information on OLEDs is available on Wikipedia.