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Volume 4
Nano Research & Applications
ISSN: 2471-9838
Page 84
&
JOINT EVENT
October 04-05, 2018 Moscow, Russia
2
nd
Edition of International Conference on
26
th
International Conference on
Advanced Nanotechnology
Materials Technology and Manufacturing Innovations
Advanced Nanotechnology 2018
& Materials-Manufacturing 2018
October 04-05, 2018
Heterogeneously integrated micro LEDs for displays and beyond
Zhaojun Liu
Southern University of Science and Technology, China
A
s self-emitting devices without the need of back light units, Micro LEDs are suitable for many applications such
as novel displays. Micro LED displays have the potential to enhance the capabilities of LCDs and OLED displays
with its excellent performance in many different aspects, particularly high LUE, simplicity of optical modules without
back light unit, long life time and excellent visibility under bright day light. Our group has been working on micro-LED
technologies for more than a decade. We have reported the design and fabrication of high pixel per inch (PPI) micro-LED
displays with red, green, blue and UV colors by integrating monolithic LED micro arrays and active matrix substrates
using Flip Chip technology. A CMOS active matrix driving scheme was designed to provide sufficient drive capability
and individual controllability of each LED pixel. The micro LED displays had 400×240 pixels on a single chip with PPI
upto 1700. The emission wavelengths were 630 nm, 535 nm, 445 nm and 380 nm respectively. The red, green and blue
micro LED displays can be used to form a novel full color direct view display. The micro LED displays could be used for
modulated visible light communication systems or for data modulated photo pumped organic semiconductor devices.
liuzj@sustc.edu.cnNano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C5-021