What is OLED and how does it work?

Do you know what OLED is? Recently you all must have heard about this OLED Display, because this time the manufacturer has used OLED Display in both iPhone X and Samsung Galaxy Note 8. This is not only providing a good look to the phones, but it is also getting very new features phones. Since this OLED display is very valuable, for now it is being used only in high end phones and other Tech Gadgets.

Many of us must have heard about it that this is a new version of LED Organic LED but do you have full knowledge about it. If not, please stay with me and read this article completely, till the end you will get complete information about OLED Display. Then without delay let us know what this OLED Display is and how it is different from other LEDs, so let's start.

The full form of OLED is Organic Light Emitting Diodes. This is flat light emitting technology. The series of organic thin films that are made together are placed together between two conductors in the series. Whenever electric current is passed from within them, it emits bright light. OLEDs are emissive displays that do not require a backlight, with which they are very thin and much more efficient than LCD displays.

OLED Displays are not only thin and efficient but they also provide the best image quality. With this they can also be made transparent, flexible, foldable and rollable, stretchable in future. Therefore, it would not be wrong to call OLED the future of display technology. Very little power is required to run it. OLED is currently used in mobile phones, smartphones and gaming devices.

History of OLED
The first OLED device was developed in 1987 by Ching W. Tang and Steven Van Slyke at Eastman Kodak. Since then, many changes have been brought in OLED technology, it has also been improved many times, so that it provides very effcient light using very little power.

What is OLED Technology
OLED panels are made of organic (carbon based) materials and light emit only when electricity is passed from them. Since OLEDs have a backlight and filters (such as those on LCD displays), they are more efficient, easier to make, and much thinner - they can also be easily flexible and rollable. OLEDs have excellent picture quality - brilliant colors, infinite contrast, fast response rate and wide viewing angles are some of its main features. OLEDs are also used for OLED Lighting where it can be made thin, efficient and without any metals.

Working of OLEDs
The main component of OLED display is OLED emitter - which is an organic (carbon-based) material and it emits light only when electricity is applied in it. The basic structure of an OLED is something in which an emissive layer is sandwiched between a cathode (which injects electrons) and an anode (which removes electrons).

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