David J. Tupman has served as a Director of Pixelworks since April 2014 and as a consultant to Pixelworks since July 2012. Mr. Tupman is currently the CEO of Details Lab Inc., an advisory firm focusing on scaling organizations for high-growth, technology development and new product introduction. From 2001 to 2011, Mr. Tupman rose from manager to Vice President of hardware engineering at Apple, Inc., where he led the hardware engineering and technology teams for multiple mobile devices, including the iPhone and iPod devices. Prior to Apple, Mr. Tupman worked at Psion Computers in London, England from 1995 to 2001 as a hardware-engineering manager where he developed a number of PDAs including the Psion Series 5MX and the Revo. From 1988 to 1995, Mr. Tupman was a Principal Design Engineer at Schlumberger in Farnborough, England where he developed low power, high precision sensors for the gas, fuel and aerospace industries. Mr. Tupman holds a Bachelors in Electronics Engineering from University of Salford, England. Mr. Tupman is named as an inventor on more than 30 US patents.