What is an OLED display?
An OLED display uses a new technology called OLED (Organic Light Emitting Diodes). OLED screens are brighter, more efficient, thinner and feature better refresh rates and contrast than LCD or Plasma.
OLEDs are made by placing thin films of organic (carbon based) materials between two conductors. When an electrical current is applied, a bright light is emitted. Since the OLED materials emit light, a backlight is not required (unlike LCDs).
OLEDs in mobile phones
Mobile phones that boast OLED screens are rapidly becoming more prevalent, with over 200 million AMOLED screens manufactured last year to benefit the mobile phone industry. Most major company offer least one OLED phone, with Samsung apparently leading the charge with over 10 models of OLED display mobile phones on the market.
Mobile phones that use OLED displays do not seem very different at first glance, and their outer appearance can be hard to tell apart from an LCD display phone. Their quality, however, is immeasurably better. LCD displays cannot compete with the contrast ratios of AMOLED displays, and true black on an OLED screen is indeed unparalleled (as LCDs can not be as dark and often result in a dark gray). Color saturation and efficiency are additional factors in favor of OLEDs.
In the future we’re going to see flexible OLED displays, bendable phones, transparent screens and more exciting design options enabled by OLED technologies.