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This paper describes friction properties between a touchscreen display and the human finger. The friction measurements were made on a custom device that incorporates a 3-dimensional force plate. Friction properties are found to be dependent on surface structure, surface materials, the finger's hydration level, and the speed of the finger across the surface.

Properly designed touch screens are bringing previously unattainable levels of intuitive human-computer interactions for managing aircraft information. Human-factor issues, such as the visual appearance of the display in high ambient sunlight conditions, avoidance of accidental activation, and resistance to the deposition of fingerprints, are all influenced by the touch screen construction and integration with the active matrix liquid crystal display (AMLCD). This paper describes a touch screen display designed with Human-Machine-Interface (HMI) features required for flight deck applications.

The back-lit Active Matrix-Liquid Crystal Display(AM-LCD) is enjoying increasing popularity as the technology of choice for multi-function displays in next generation air and ground vehicle crew-stations. As the developers of this technology continue to hurdle the present cost and process limitations, it is anticipated that the AM-LCD method will lend itself effectively to all conventional direct view applications. Further, the AM-LCD process does offer a potential growth path toward the panoramic crew stations, possessing large-area, high density (projection mode) and autostereoscopic attributes.It is therefore probable that an all AM-LCD crew-station will become an accepted norm for a broad range of applications within the foreseeable future.In concurrent developments we are experiencing a rapid growth in the pilotage/operations ofmilitary vehicles utilizing night vision aids. The harmonization ofAM-LCD Information Systems with such Night Vision Equipment (NVE) in an optimal fashion poses an interesting challenge for the equipment developer, crew-station designer and ultimately the end-user.Wearenowat thedemonstration phase ofthe firstgeneration ofintegratedAM-LCDINVE systems, which allow all interested parties to appreciate the subtle interplays existing between the two technologies.To further facilitate this optimization process the paper seeks to: -Summarize the basic precepts of the back-lit AM-LCD pertinent to NVE operation -

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