Advances of microdisplay and design aspects on high definition OLED microdisplay

微显示器的研究进展及高清有机发光微显示器的设计探讨

时间：2014年5月12日 上午9：30

地点： 延长校区四教203

主讲人：季渊  美国明尼苏达大学博士后

报告摘要：

The first part of this talk will introduce the recent advances of microdisplays. The second part of this talk will introduce the design aspects and applications of OLED microdisplays with high definition resolution. The topic includes:

(1)     The manufacture process: Traditional manufacture process of the OLED microdisplay separates the OLED process and the silicon CMOS process. Our process flow fabricates the pixel pattern in one process, so the manufacture cost will be reduced in a great deal and the product yield will also be increased.

(2)     The scan algorithm: Traditional display usually support up to 256 grayscale levels of the pixel. Our scan algorithm support more than 4096 grayscale levels, which makes a super restore of the display resolution and color.

(3)     The driving circuit: Traditional OLED driving circuits are mainly designed for TFT (Thin Film Transistors) substrates. They are not suitable for microdisplay whose current is only around picoamp (pA)-level currents. We put forward a novel circuit which supports micro pixels and also incorporates an OLED degradation compensation mechanism.

(4)     The system design methodology: This talk will introduce the system design method of the microdisplay, including the silicon chip design and display sub-system design.

(5)     Application: This talk will introduce several popular applications of the OLED microdisplay, including wearable head mounted display and wrist watch.

报告人简介：

Dr. Yuan Ji is currently a post-doctor in University of Minnesota – Twin cities, Minneapolis, USA. He received the Ph.D. degree in control theory and control engineering from Shanghai University in 2012. He once worked as a senior engineer and a project leader in Huawei Tech Co. Ltd from 2005 to 2009. He led a research and developing team working on the baseband processor and the application processor of 3G smart phones. He was one of the founders of the K3 smart phone platform in Huawei. He obtained both of Huawei’s annual personal golden award in 2006 and Huawei’s annual team golden award in 2009. His research interests are in the areas of high performance computer architecture, parallel computing, embedded system-on-chip, digital image processing, CMOS image sensor, organic lighting emitting display, microdisplay, wireless display, digital circuit design, mixed circuit design, artificial neural network, stochastic computing, smart storage and automobile electronics. He is involved in several National Nature Science Foundation projects. He obtained the first-class award of 2013 scientific and technological advancement of Shanghai government. He is the inventor of more than 30 patents.