Performance Comparison of Bilayer and Multilayer OLED

  • Akanksha Uniyal Department of Electronics and Communication, School of Engineering and Technology, Graphic Era University, Dehradun-248002, India
  • Poornima Mittal Department of Electronics and Communication, Schoolof Engineering and Technology, Graphic Era University, Dehradun-248002, India
Keywords: Active Matrix Light EmittingDisplay (AMOLED), Organic Light Emitting Diode (OLED), Hole Transport Layer (HTL), Electron Transport Layer (ETL), Emissive Layer (EML)


Active Matrix organic light emitting displays are emerging as the display of the future due to their active contribution towards the flat panel display technology. Organic light emitting displays have all the features due to which it dominates the flat panel display technology.The AMOLED displays have various features like low cost, low power consumption, high brightness, wide view angle, good color contrast and its ability to be fabricated on a flexible substrate. The display is basically an array of independently controllable pixels. Therefore, the number of pixel depends on the dimension as well as on the resolution for the required application. This paper defines the types of OLED on the basis of its mode of operation (Active matrix and Passive matrix). Different characteristics and parameters of individual OLED structure are extracted and compared to show their structure dependent behavior. Undoubtedly a higher performance is achieved for multilayer OLED structure with respect to the bilayer due to a significant increase in the carrier recombination rate.


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