Optimisation of Microcavity based organic light emitting diode for flat panel display
Speaker: Jesse Chan, ITEE
When: 2003-09-16 11:00:00
Venue: 78-420
Host: Dr Aleksander Rakic
Abstract:As technology advances, mobile electronic devices such as laptop
computers, cellular phones or digital cameras have emerged as a
necessity in ones everyday life. This has boosted the demand for
light and reliable flat panel displays that come along with those
devices. Since early ninety's, liquid crystal display (LCD) has
became the dominant source of display due to its distinct properties
in size and reliability. However, LCD as a mature technology does
have its limitations and this has prompted engineers in search for a
better and reliable alternatives.
Organic light emitting diodes (OLEDs) are attracting increasing
attention for applications in display devices due to their high
brightness and wide viewing angle. However, major obstacles such as
luminance efficiency, light extraction efficiency and long term
stability still exist in the technology awaiting
solutions. Recently, microcavity structures have been employed on
existing OLED device to alter electroluminescent (EL)
characteristics of organic material and enhancements in light
emission spectrum and extraction efficiency have been observed.
While there has been significant progress in this area over recent
years, comprehensive device simulation and design studies have been
scarce. This project aims to develop a set of design guidelines that
will optimise the performance of microcavity based OLED in aspects
including emission intensity, directivity and light extraction
efficiency.
This seminar will begin by examining current LCD technology and its
limitations, followed by the literature review of the OLED
technology. The major obstacles of OLED will be outlined and project
aim will be determined. The research methodology detailing how the
problem should be approached will be addressed. The results obtained
up to date will be presented and the contribution of the thesis will
be emphasized. Finally, the remaining research tasks will be
identified and concluded with nominal completion dates.
Biography:(biography unavailable)
Type: PhD confirmation seminar
Contact:Dr Aleksander Rakic, seminar host (rakic@itee.uq.edu.au)
or Guido Governatori (ITEE seminar co-ordinator)
(guido@itee.uq.edu.au)