Title :
1700 Pixels Per Inch (PPI) Passive-Matrix Micro-LED Display Powered by ASIC
Author :
Wing Cheung Chong ; Wai Keung Cho ; Zhao Jun Liu ; Chu Hong Wang ; Kei May Lau
Author_Institution :
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China
Abstract :
We report the first 1700 pixels per inch (PPI) passive-matrix blue light-emitting diodes on silicon (LEDoS) micro-displays. By flip-chip bonding a micro-LED array onto an ASIC display driver, we successfully fabricated a 0.19-inch display with a resolution of 256 x 192, the highest ever reported in LED-based micro-display. In addition, the LEDoS micro-display can deliver brightness as high as 1300 mcd/m2 and render images in 6-bit grayscale. The remarkable performance suggests the tremendous potential of LEDoS micro-displays for portable display applications which require high performance, small size and low power consumption.
Keywords :
LED displays; application specific integrated circuits; driver circuits; elemental semiconductors; flip-chip devices; low-power electronics; microdisplays; silicon; ASIC display driver; LEDoS; Si; flip-chip bonding; grayscale; image rendering; light emitting diodes on silicon; low power consumption; microLED array; passive-matrix microLED display; Application specific integrated circuits; Arrays; Bonding; Flip-chip devices; Indium; Light emitting diodes; Silicon;
Conference_Titel :
Compound Semiconductor Integrated Circuit Symposium (CSICs), 2014 IEEE
Conference_Location :
La Jolla, CA
DOI :
10.1109/CSICS.2014.6978524
