OLED Displays
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OLED (Organic Light Emitting Diodes) is an advanced display technology utilizing organic materials to emit light without requiring a backlight, making them thinner and more efficient than LCDs. There are two main types: PMOLED, used in smaller devices, and AMOLED, which offers higher efficiency and resolution for larger screens like smartphones and TVs, with Samsung and LG being the leading manufacturers. The potential applications of OLED technology include flexible, foldable, rollable, and transparent displays, indicating a promising future in display innovation.
OLED Displays
- 2. • OLED (Organic Light Emitting Diodes) is a flat light emitting technology, made by placing a series of organic thin films between two conductors. When electrical current is applied, a bright light is emitted. OLEDs are emissive display that do not require a backlight and so are thinner and more efficient than LCD displays (which do require a white backlight). • OLED displays are not just thin and efficient - they provide the best image quality ever and they can also be made transparent , flexible, foldable and even roll able and stretchable in the future. OLEDs represent the future of display technology! • OLEDs are organic because they are made from carbon and hydrogen. There's no connection to organic food or farming 2
- 3. • OLED panels are made from organic materials that emit light when electricity is applied through them. Since OLEDs do not require a backlight and filters (like LCD displays do), they are more efficient, simpler to make, and much thinner - and in fact can be made flexible and even roll able. • The main component in an OLED display is the OLED emitter - an organic (carbon- based) material that emits light when electricity is applied. The basic structure of an OLED is an emissive layer sandwiched between a cathode (which injects electrons) and an anode (which removes electrons). 3
- 4. 4 • These terms relate to the driving method of the OLED display. A PMOLED (Passive- Matrix OLED) is limited in size and resolution (usually maximum resolution is around 128x128), but is cheaper and easier to make compared to an AMOLED (which uses an Active-Matrix). An AMOLED uses an active- matrix TFT array and storage capacitors. While these displays are more efficient and can be made large, they are also more complicated to make. • PMOLED displays are used in small devices or secondary displays while AMOLEDs are used in smartphones, tablets and TVs. Here's more information about the difference between PMOLED and AMOLED.
- 5. 5 • The leading AMOLED producer today is Samsung, who's making over 400 million displays a year, mostly smartphone-sized AMOLEDs (flexible and rigid). LG Display is the world's leading (and only) OLED TV panel maker, and LG is also starting now to produce small-sized flexible OLEDs. • OLED Opens Up the possibility to create - Foldable Displays - Rollable Displays - Stretchable Displays - Transparent OLEDs embedded in windows etc. - And many more we cannot even imagine today…
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