Architectures for Smart Displays

Turner Whitted
Microsoft Research

Conventional graphics and video processing concentrate processing into CPU/GPU modules with displays connected as passive recipients of pixel streams. As displays grow larger this model is strained by extreme pixel bandwidth or, in the case of tiled displays, unwieldy collections of video cables. Displays are evolving with the addition of silicon circuitry for auxiliary functions including image decompression. The opportunity exists to greatly expand the functions embedded in displays. Advantages of such smart displays include reduced connection bandwidth, scalability, and a more flexible model of visual computing.

An independent evolution is occurring in the realm of interactive rendering that fits nicely into this model and serves as a template for embedded display processors. We are investigating a merger of these two trends with partitioned rendering that places the final stages of image construction in the display. Portions of this display processor are restricted to a structure that will eventually lend itself to implementation using the same materials and fabrication techniques as the display surface.

Bio:
Turner Whitted is a principal researcher at Microsoft Research investigating algorithms and architectures for computer graphics. Previously he managed MSR's hardware devices and graphics groups.

He was a member of the computer science faculty at the University of North Carolina at Chapel Hill from 1983 until 2001. He co-founded Numerical Design Limited in 1983, served as president and technical director until 1996, and continued to serve as a director until NDL's merger with Emergent Game Technologies in 2005. Prior to that he was a member of the technical staff in Bell Labs' computer systems research laboratory.

He earned BSE and MS degrees from Duke University and a PhD from North Carolina State University, all in electrical engineering. In the past he has served on the editorial boards of IEEE Computer Graphics and Applications and ACM Transactions on Graphics, was papers chair for SIGGRAPH 97, and currently serves on the SIGGRAPH executive committee. He is an ACM Fellow and a member of the National Academy of Engineering.