Organic Light Emitting Diode (OLED)

Paper Summary:

The paper discusses the development of organic light emitting diodes (OLEDs), one of the major technological breakthroughs since the invention of liquid crystal displays (LCDs) in providing digital lighting and display. The paper examines how these components display brighter colors, produce faster refresh rates, consume less power, and cost less to manufacture. The paper further discusses how OLEDs are being used in consumer electronics such as cellular phones, personal digital organizers (PDAs), and flat-screen televisions. The paper examines how these can be used in virtual reality, heads-up display (HUDs), and in the military. The paper concludes that the technology looks very promising, and may provide us with a cheaper and better alternative to current LCDs and LEDs in displaying bright and crisp digital images.

Table of Contents:
Executive Summary
Introduction to Topic
History / Background
Current Technology/Implementations/Understandings
A. OLED Structure
B. OLED Operation
C. Advantages
D. Disadvantages
Analysis of Existing Knowledge
Summary of Topic
Short Term Outlook
Recommendations and/or Conclusions
Bibliography

From the Paper:

"When electricity is applied to the OLED (around 2 to 10 volts), the electrical current is received by the cathode and gives electrons to the emissive layer. At the same time the anode also receives an electric current and it sucks electrons from the conductive layer. This creates "electron holes" between the emissive and conductive layers, which are then filled up. This is the step which creates light. To create brighter light, it is only necessary to increate the electrical current. To create colors, several OLED layers are used which contain color components for red, green, and blue (Freudenrich, n.d.)."

Sample of Sources Used:

• Aquino, G. (2003, March 6). "Kodak, Kyocera Digicams Face Off". Retrieved Dec. 10, 2005, from http://www.pcworld.com/resource/printable/article/0,aid,109682,00.asp#.
• "ELECTRONIC PAPER: Organic Light Emitting Diodes" (n.d.). Retrieved Dec. 11, 2005, from http://komar.cs.stthomas.edu/qm425/01s/Tollefsrud2.htm.
• Freudenrich, C. (n.d.). "How oleds work". Retrieved Dec. 10, 2005, from http://science.howstuffworks.com/oled.htm.
• "Organic light-emitting diode". (2005, December 1). Wikipedia, The Free Encyclopedia. Retrieved December 10, 2005 from http://en.wikipedia.org/w/index.php?title=Organic_light-emitting_diode&oldid=29800464.
• "What is an oled (organic light emitting diode)?" (n.d.). Retrieved Dec. 11, 2005, from http://www.wisegeek.com/what-is-an-oled.htm.

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