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What is an AMOLED display?
In an AMOLED display, there are small light-emitting diodes (LED) that are shrunken down and arranged into clusters to create individual pixels. These pixels can reproduce white light and various colors as well. OLED is simply an organic thin layer of material that is put between two conductors in each LED. It emits light when a current is applied to them.
Where AMOLED differs is that it is an Active Matrix system, wherein a thin film transistor and a capacitor are attached to each LED. This allows for faster and more precise control of each pixel in the display, thus allowing it to control more portions of the screen and dim individual pixels to provide a more color-accurate image.
This is the reason why AMOLED produces a deeper black, as it can completely turn off individual pixels leading to a higher contrast ratio. The AMOLED screen generally tends to be thinner and lighter than an LCD. However, most AMOLED displays suffer from burn-in over time where static images or patterns are displayed for an extended period of time.
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Atreya Raghavan
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