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oled ppt

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hey guyz this is the presentation iv made in my last year of engineering and got very nice feedbacks. my topic was oled(organic light emitting diodes).. iv given all its highlited informations with pictures

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oled ppt

  1. 1. O.L.E.D (Organic Light Emitting Diode) Presented by: Harsh Veer Singh Nirwan 8 th -sem ECE ☺ ☺
  2. 2. What is an OLED ? <ul><li>OLED - O rganic L ight E mitting D iode </li></ul><ul><li>An OLED is a light emitting diode (LED) which emissive electroluminescent layer is composed of a film of organic compounds. </li></ul>
  3. 3. HISTORY <ul><ul><li>First developed in the early 1950s in France. </li></ul></ul><ul><ul><li>1960s-AC-driven electroluminescent cells using doped anthracene was developed. </li></ul></ul><ul><ul><li>In 1987 Chin Tang and Van Slyke introduced the first light emitting diodes from thin organic layers.  </li></ul></ul><ul><ul><li>In1990 electroluminescence in polymers was discovered.  </li></ul></ul>
  4. 4. ARCHITECTURE OF OLED <ul><li>SUBSTRATE. </li></ul><ul><li>ANODE </li></ul><ul><li>ORGANIC LAYER: </li></ul><ul><li>1-Conductive layer </li></ul><ul><li>2-Emmisive layer </li></ul><ul><li>CATHODE. </li></ul>
  5. 5. TYPES OF OLED <ul><li>Passive OLEDs </li></ul><ul><ul><li>The organic layer is between cathode & anode run perpendicular. </li></ul></ul><ul><ul><li>The intersections </li></ul></ul><ul><ul><li>form the pixels. </li></ul></ul><ul><ul><li>Easy to make. </li></ul></ul><ul><ul><li>Use more power. </li></ul></ul><ul><ul><li>Best for small screens. </li></ul></ul>
  6. 6. <ul><li>Active OLEDs </li></ul><ul><ul><li>Full layers of cathode and anode. </li></ul></ul><ul><ul><li>Anode over lays a thin film transistor (TFT). </li></ul></ul><ul><ul><li>Requires less power. </li></ul></ul><ul><ul><li>Higher refresh rates. </li></ul></ul><ul><ul><li>Suitable for large screens </li></ul></ul>
  7. 7. APPLICATION OF OLED <ul><ul><li>Televisions </li></ul></ul><ul><ul><ul><li>SONY </li></ul></ul></ul><ul><ul><ul><li>LG transparent TV </li></ul></ul></ul><ul><ul><li>Cell Phone screens </li></ul></ul><ul><ul><li>Wrist Watch </li></ul></ul><ul><ul><li>Computer Screens </li></ul></ul><ul><ul><ul><li>Laptops </li></ul></ul></ul><ul><ul><ul><li>Desktops </li></ul></ul></ul><ul><ul><li>Bendable Devices </li></ul></ul><ul><ul><li>Portable Device displays </li></ul></ul><ul><ul><ul><li>Philips Go Gear MP3 Player </li></ul></ul></ul>
  8. 8. ADVANTAGES <ul><ul><li>Faster response time than LCDs </li></ul></ul><ul><ul><li>Consume significantly less energy </li></ul></ul><ul><ul><li>Can be transparent when off </li></ul></ul><ul><ul><li>Flexible and Conformal Displays </li></ul></ul><ul><ul><li>Thinner display-No backlight required </li></ul></ul><ul><ul><li>Better contrast ratio </li></ul></ul><ul><ul><li>Safer for the environment </li></ul></ul><ul><ul><li>Wider viewing angles ; up to 170 degrees </li></ul></ul><ul><ul><li>OLEDs refresh almost 1,000 times faster then LCDs </li></ul></ul><ul><ul><li>Low cost materials and fabrication method </li></ul></ul><ul><ul><li>Less Expensive than LCD due to lesser components </li></ul></ul><ul><ul><li>Can be made using plastic screens; LCDs require glass backing </li></ul></ul>
  9. 9. DISADVANTAGES <ul><ul><li>OLED seems to be the perfect technology for all types of displays, but it also has some problems: </li></ul></ul><ul><ul><li>Lifetime  - While red and green OLED films have longer lifetimes (46,000 to 230,000 hours), blue organics currently have much shorter lifetimes (up to around 14,000 hours) </li></ul></ul><ul><ul><li>Manufacturing  - Currently, manufacturing is more expensive than LCDs </li></ul></ul><ul><ul><li>Water  - Water can easily damage OLEDs </li></ul></ul><ul><ul><li>OLED screens are even worse than LCD in direct sunlight </li></ul></ul><ul><ul><li>Overall luminance degradation </li></ul></ul><ul><ul><li>Limited market availability </li></ul></ul>
  10. 10. FUTURE USES FOR OLED <ul><ul><li>Manufacturers focusing on finding a cheap way to produce. </li></ul></ul><ul><ul><li>&quot; Roll-to-Roll &quot; Manufacturing. </li></ul></ul><ul><ul><li>Increasing efficiency of blue luminance. </li></ul></ul><ul><ul><li>  </li></ul></ul><ul><ul><li>Boosting overall lifespan </li></ul></ul>
  11. 11. FUTURE USES FOR OLED <ul><ul><li>Data glass </li></ul></ul><ul><ul><li>GPS system  </li></ul></ul><ul><ul><li>OLED – in future cars </li></ul></ul><ul><ul><li>Curved OLED displays, placed on non-flat surfaces </li></ul></ul><ul><ul><li>And many more we cannot even imagine today </li></ul></ul><ul><li>Scroll Laptop </li></ul><ul><ul><li>Nokia concept OLED Laptop </li></ul></ul>
  12. 13. THANK YOU FOR YOUR PATIENCE ☺ ☺
  13. 14. <ul><li>Electroluminescence  (EL) is an optical phenomenon and electrical phenomenon in which a material emits light in response to an electric current passed through it, or to a strong electric field </li></ul>
  14. 15. <ul><li>A  pixel (or picture element) is the smallest item of information in an image </li></ul>
  15. 16. A  thin-film transistor  ( TFT ) is a special kind of field-effect transistor made by depositing thin films of a semiconductor active layer.
  16. 17. The  refresh rate  is the number of times in a second that display hardware draws the data it is being given
  17. 18. SONY XEL-1 <ul><li>The SONY XEL-1 released in December 2007 for customers in Japan. 200,000 Yen -- or about $1,700 U.S (Rs 8L+) </li></ul><ul><ul><li>Released XEL-1 in February 2009.(Worldwide)  </li></ul></ul><ul><ul><li>$2500 USD(Rs 12L+) </li></ul></ul><ul><ul><li>First OLED TV sold in sold in America. . </li></ul></ul><ul><ul><li>11'' screen, 3mm thin </li></ul></ul><ul><ul><li>Weighs approximately 1.9 kg </li></ul></ul><ul><ul><li>Wide 178 degree viewing angle </li></ul></ul><ul><ul><li>1,000,000:1 Contrast ratio </li></ul></ul>The Sony . 11-inch XEL-1 OLED TV TVs almost as thin as a credit card
  18. 19. L.G Flexible OLED LG Display 19-inch OLED Samsung's 40-inch OLED TV
  19. 20. ROLL TO ROLL PRINTING <ul><li>The flexible OLED element capable of being produced using </li></ul><ul><li> roll-to-roll printing technology. </li></ul><ul><li>The ROLLED project under European researchers coordinated </li></ul><ul><li>by VTT. </li></ul>
  20. 21. FAST RESPONSE TIME OLED LCD Fast response time means full motion graphics can be displayed
  21. 22. CONSTANT CONTRAST RATIO <ul><li>Wide viewing angle . </li></ul>
  22. 23. SONY PSP2 CONCEPT <ul><li>Oled rollable display . </li></ul>A flexible OLED display that can be rolled around the main electronics core but, when charged, automatically stiffens with minimal bezel surround.
  23. 24. BENDABLE OLED DISPLAY Organic Light Emitting Diode (OLED) technology is threatening the Liquid Crystal Display, or LCD, standard because of its flexibility, low power consumption and versatility.
  24. 25. OLED DATA GLASS <ul><li>Developed by Students at the Fraunhofer Institute in Germany </li></ul><ul><li>A pair of interactive data eyeglasses that can project an image </li></ul><ul><li>onto the retina from an organic light-emitting diode (OLED) micro- </li></ul><ul><li>display, making the image appear as if it's a meter in front of the wearer. </li></ul><ul><li>Similar headwear only throws up a static image, </li></ul><ul><li>Just the movement of the eyeball, to scroll through information. </li></ul>
  25. 26. IN DIRECT SUNLIGHT Nokia N00 OLED Display Apple iPHONE LCD Display
  26. 28. WRIST WATCH

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