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What is OLED in Android Watches?

What is OLED in Android Watches?

OLED actually an acronym for organic light-emitting diode (or Organic LED). There are two types of OLED technology:

  1. Passive-Matrix (PMOLED)

The first ever PMOLED watch we are aware of is the Citizen VIRT, that was released in June 2006 This watch had Bluetooth connection, and was able to show caller ID.

  1. Active-Matrix (AMOLED).

Active-Matrix requires electronics to switch each pixel on or off individually, which is better for displaying deep blacks.  Newer generation ones tend to use higher-resolution and more advanced AMOLED displays.

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An OLED display can work without a backlight because it emits visible light. Thus, it can display deep black levels and can be thinner and lighter than a liquid crystal display (LCD). In low ambient light conditions (such as a dark room), an OLED screen can achieve a higher contrast ratio than an LCD, regardless of whether the LCD uses cold cathode fluorescent lamps or an LED backlight.

According to whathifi.com, the first OLED TVs came from Korean manufacturer LG and Samsung. hey hit the shelves in 2013, giving us a tempting glimpse of the picture quality and slimline design the technology promised.

Though OLED type of screen technology that’s been around for a while, Apple’s  only adapt it official only on  iPhone X . This is the first time it’s ever been used in an  as one of the biggest improvements is the introduction of an OLED display.

The Organic LED become the technology of choice for android watch wearables and other applications where power consumption is the key driver. That’s because the crystals in OLED displays produce their own light, which means they don’t need a battery draining backlight to function unlike LCDs.

Organic LED displays can also turn off individual pixels to display true black, which isn’t possible with LCD displays.

Advantages

    1. Lower cost
    2. Lightweight and flexible plastic substrates
    3. Better picture quality
    4. Better power efficiency and thickness
  1. Response time – according to LG, Organic LED response times are up to 1,000 times faster than LCD.

Disadvantages

  1. Lifespan – The biggest technical problem for Organic LED is the limited lifetime of the organic materials
  2. Color balance
  3. Efficiency of blue Organic LED
  4. Water damage
  5. Outdoor performance
  6. Power consumption
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