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oled_ppt_8088060923 oled_ppt_8088060923 Presentation Transcript

  • under the guidance of Mrs. Shobha p cdept of ece, AIT BANGALORE Presented by Hemant Kumar Sharma ( 1AT08EC043)
  • What is an OLED? OLED - Organic Light Emitting Diode An OLED is an electronic device made by placing aseries of organic thin films between two conductors. Whenelectrical current is applied, a bright light is emitted..
  • Architecture of OLEDs
  • How OLEDs Emit Light *The battery or power supply of the device containing the OLED applies a voltage across the OLED. *An electrical current flows from the cathode to the anode through the organic layers.(an electrical current is a flow of electrons) *At the boundary between the emissive and the conductive layers, electrons find electron holes. *The OLED emits light
  • Types of OLEDs Passive-matrix oled Active-matrix oled Transparent oled Top-emitting oled Flexible oled
  • Passive-Matrix
  • Active-Matrix
  • Transparent
  • Top-Emitting
  • Flexible
  • Applications of OLEDs• Televisions• Cell Phone screens• Wrist Watch• Computer Screens• Digital Camera• Portable Device displays
  • Advantages of OLEDs Thinner, lighter and more flexible Brighter Consume much less power Large field of view Faster response Less Expensive Better contrast ratio
  • Disadvantages of OLEDs OLED seems to be the perfect technology for all types of displays, but it also has some problems:• Lifetime• Manufacturing• Water
  • Future Uses for OLED GPS system OLED – in future cars Curved OLED displays, placed on non-flat surfaces And many more we cannot even imagine todayScroll Laptop • Nokia concept OLED Laptop
  • References• http://impnerd.com/the-history-and-future-of-oled• http://en.wikipedia.org/wiki/Organic_light-emitting_diode• http://www.oled-research.com/oleds/oleds-history.html• http://www.voidspace.org.uk/technology/top_ten_phone_techs.sht ml#keep-your-eye-on-flexible-displays-coming-soon• http://www.pocket- lint.com/news/news.phtml/23150/24174/samsung-say-oled-not- ready.phtml• http://www.cepro.com/article/study_future_bright_for_oled_lighti ng_market/• http://www.technologyreview.com/energy/21116/page1/• http://optics.org/cws/article/industry/37032• http://jalopnik.com/5154953/samsung-transparent-oled-display- pitched-as-automotive-hud
  • Thank You