Method and device for addressing a matrix screen
A device for addressing a matrix display such as an LCD or plasma display. The addressing device comprises a storage stage (70, 198) for receiving, via a demultiplexing stage (220), a plurality of digital data sequences representing previously digitised video luminance signals, and outputting the video luminance signals to a multiplexing stage (230) designed to select a digital data sequence that corresponds to a given combination of subpixels from the plurality of digital data sequences previously stored in said storage stage (70, 198).
Recent advances in optics, helmet-mounted display (HMD) design, 3D graphics chips, and processes for personal computers have combined to make HMD based virtual reality driving simulators available at low cost. A HMD with a resolution of 1,024 by 768 with a field of view of 50 deg diagonally is now available for about $20,000. A graphics processor that can render large databases at fast frame rates costs only $400. Personal computers can now support multiple processors that run over 1 Gigahertz. The authors discuss visual concerns with a HMD, choosing a HMD for a driving simulator, HMDs compared with fixed displays, consequences of improved frame rates, autonomous vehicles, and the use of a HMD based driving simulator for studying drivers who have cognitive impairments.