Flexible OLED Displays (FAMOLED)

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It is an overviewed presentation on Flexible OLED Displays........

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Flexible OLED Displays (FAMOLED)

  1. 1. A Technical Seminar on By, Malla Bhargav (09E51A0450) Under the Guidance of, Mrs S.V.Devika, M.Tech, (PhD), MIEEE Associate professor
  2. 2. This technology is mainly aimed at revolutionizing both displays (i.e. TV or Smartphone screens) and lighting. OLED stands for Organic Light Emitting Diode, but since the light-producing technology is lightweight and can be applied to bendable surfaces, the term is often used to reference to flexible displays. The display technology that has been used in these flexible displays is FAMOLED (i.e., Flexible Active Matrix Organic Light Emitting Diode).
  3. 3. An OLED or Organic Light Emitting Diode is a light emitting device based on the principle of electroluminescence of organic crystals. An OLED is a solid-state semiconductor device that is 100 to 500 nanometres thick or about 200 times smaller than a human hair.
  4. 4. There are two types of OLEDs namely  Passive Matrix  Active Matrix
  5. 5. Passive Matrix Active Matrix 1. The organic layer is between cathode & anode run perpendicular Full layers of cathode and anode 2. The intersections form the pixels. Anode over lays a thin film transistor 3. Suitable for 2-3’’ screens (cell phones, PDA, MP3) Suitable for large displays (computer monitors, TVs) 4. Consumes more power, due to the power needed for external circuitry Consumes less power, because TFT array requires less power than external circuitry 5. Easy to produce Faster refresh rates so suitable for video More expensive Brighter and sharper images
  6. 6. Flexibility Ultra-lightweight, thin form Durability Cost-effective processing
  7. 7. Lower cost in the future Light weight & flexible plastic substrates Wider viewing angles & improved brightness Better power efficiency Response time Poor outdoor performance Screen burn-in UV sensitivity Less Lifetime Expensive Manufacturing Susceptible to water
  8. 8. Lighting:  1.Flexible / bendable  2.lighting • 3.Wallpaper lighting • 4.defining new ways to light a space • 5.Transparent lighting doubles as a window • 6.Heads up display. Cell Phones : • 1. Nokia 888 • 2. Samsung Skin…etc
  9. 9. Organic Light Emitting Diodes are evolving as the next generation of light sources. Presently researchers have been going on to develop a 1.5 emitting device. This wavelength is of special interest for telecommunications as it is the low-loss wavelength for optical fiber communications. Organic full-color displays may eventually replace liquid crystal displays for use with lap top and even desktop computers. Researchers are going on this subject and it is sure that OLED will emerge as future solid state light source.

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