Performance Comparison of Bilayer and Multilayer OLED
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.
ATLAS User’s Manual Device Simulation Software. Silvaco International, Santa Clara, 2014.
Chiu, T. L., Chang, W. F., Wu, C. C., Lin, C. F., Lee, J. Y., Liu, S. W., ... & Lee, J. H. (2013). Tandem Organic Light-Emitting Diode and Organic Photovoltaic Device Inside Polymer Dispersed Liquid Crystal Cell.Journal of Display Technology,9(10), 787-793.
Cho, H., Yun, C., & Yoo, S. (2010). Multilayer transparent electrode for organic light-emitting diodes: tuning its optical characteristics.Optics express,18(4), 3404-3414.
Klauk, H., Zschieschang, U., & Halik, M. (2007). Low-voltage organic thin-film transistors with large transconductance.Journal of Applied Physics,102(7), 074514.
Kumar, B., Kaushik, B. K., & Negi, Y. S. (2014). Organic thin film transistors: structures, models, materials, fabrication, and applications: a review.Polymer Reviews,54(1), 33-111.
Lee, H., Kwak, J., Lim, J., Char, K., Lee, S., & Lee, C. (2011, June). Improvement of efficiency in inverted bottom-emission white OLEDs by doping the hole transport layer. In Device Research Conference (DRC), 2011 69th Annual(pp. 95-96). IEEE.
Lin, C. L., Tsai, T. T., & Chen, Y. C. (2008). A novel voltage-feedback pixel circuit for AMOLED displays.Journal of Display Technology,4(1), 54-60.
Lin, S. C., Cheng, Y. S., Lu, K. D., Wen, H. Y., & Chang,M. Y. (2010, July). High-efficiency tandem white organic light-emitting diode. InOECC 2010 Technical Digest(pp. 532-533). IEEE.
Mittal, P., Negi, Y. S., & Singh, R. K. (2016). A depth analysis for different structures of organic thin film transistors: Modeling of performance limiting issues.Microelectronic Engineering,150, 7-18.
Park, J. (2010). Speedup of dynamic response of organic light-emitting diodes.Journal of Lightwave Technology,28(19), 2873-2880.
Pope, M., Kallmann, H. P., & Magnante, P. (1963). Electroluminescence in organic crystals.The Journal of Chemical Physics,38(8), 2042-2043.
Uttwani, P. K., Villari, B. C., Unni, K. N., Singh, R., & Awasthi, A. (2012). Detection of Physical Defects in Full Color Passive-Matrix OLED Display by Image Driving Techniques.Journal of Display Technology, 8(3), 154-161.