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

fYear

2014

fDate

19-22 Oct. 2014

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Compound Semiconductor Integrated Circuit Symposium (CSICs), 2014 IEEE

Conference_Location

La Jolla, CA

Type

conf

DOI

10.1109/CSICS.2014.6978524

Filename

6978524