OLED displays are available in active (AM) or passive (PM) matrix designs. Mostly monochrome PM OLED in various colors and form factors are found in the industrial sector. Technologically, OLEDs (organic light-emitting diodes) are self-illuminating thin film organic compounds made of organic, semiconducting materials and do not require any additional illumination source. The screens are lighter and thiner than conventional LCDs.
Contrast ratios are significantly higher because only the conductive pixels illuminate. Ultra-wide viewing angles allow for uninhibited readability at extreme angles of vision.