Ji Huaxia, technical director at Yunnan North OLiGHTEK Opto-Electronic Technology Co, shows an OLED (Organic Light Emitting Diode) micro display, in Kunming, Southwest China's Yunnan province, May 9, 2013. Ji, who has a doctorate from the University of Birmingham, has been engaged in OLED micro display research in China since 2006. The display is applied to eye-book, a wearable computer product developed by the company that sold 15,000 sets in 2012. Ji said the company is trying to improve the technology and increase capacity to make the product cheaper and as popular as cellphones. [Photo/Xinhua]
