OLED display: All you need to know

by August 5, 2019 0 comments

Whether you in the market to buy a smartphone or a TV or a notebook, you all must have heard a term OLED while going through the specifications. So, what exactly is OLED display? Well, for the uninitiated, OLED represents a display technology OLED displays that are not only thin and power-efficient – but also provide one of the best image quality. OLED displays can come in the form of transparent, flexible, foldable and even rollable – something we have seen recently in the news.

Here is how OLED technology works.

In layman terms, OLED is a light-emitting diode wherein an emissive electroluminescent layer is composed of thin-film organic compound that emits light in response to an electric current. In OLED technology, a layer of carbon-based organic material is sandwiched between the two conducting sheets viz an anode and a cathode. When an electric pulse is applied between the two conducting sheets, an electro-luminescent light is produced directly from the organic material sandwiched between. OLED displays can either use passive-matrix (PMOLED) or active-matrix techniques.

The Active-matrix OLEDs (AMOLED) utilize a thin-film transistor backplane to be able to switch each individual pixel on or off, and allows for higher resolution and large display sizes. An OLED display works without a backlight; thus, it can show strong black levels and is thinner and lighter than a liquid crystal display (LCD). In low light conditions such as a dark room, an OLED screen can achieve a higher contrast ratio than an LCD. Since it does not require any light to produce black, OLED’s are better compared to LCD, are brighter and produce vibrant colors and have wider viewing angles. OLEDs also have a faster response time than LCDs.

Advantages of OLED display

Better image quality that leads to improved contrast and brightness ratios, wide viewing angles, a wide color range and offers faster refresh rates.

They are energy efficient.

OLED displays are durable and can work in wider temperature ranges

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