Novel bistable reflective cholesteric liquid crystal display device for use with night vision goggles

Asad A. Khan; Donald J. Davis; Xiao-Yang Huang; Nick Miller; Chad M. Jones; J. William Doane

doi:10.1117/12.321776

14 September 1998 Novel bistable reflective cholesteric liquid crystal display device for use with night vision goggles

Asad A. Khan, Donald J. Davis, Xiao-Yang Huang, Nick Miller, Chad M. Jones, J. William Doane

Proceedings Volume 3363, Cockpit Displays V: Displays for Defense Applications; (1998) https://doi.org/10.1117/12.321776
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

Bistable reflective cholesteric liquid crystal displays (Ch- LCDs) can be modified for compatibility with various classes of NVGs (Night Vision Goggles). Stacking near-infrared reflecting displays and visible reflecting displays can produce a novel dual use display module. Due to the optical clarity of the visible display in NVIS mode, the two displays are stacked on top of each other without any visual compromise. This module has high reflectivity and contrast in both the visible, and NVIS cases. The display is also bistable, enabling a low power device. This paper describes variations in this configuration including a single cholesteric layer for both viewing conditions. Various methods of contrast optimization, and multiple color capability are also discussed. Military applications of this unique display device for cockpits and handheld devices with night vision requirements are discussed.

Citation Download Citation

Asad A. Khan, Donald J. Davis, Xiao-Yang Huang, Nick Miller, Chad M. Jones, and J. William Doane "Novel bistable reflective cholesteric liquid crystal display device for use with night vision goggles", Proc. SPIE 3363, Cockpit Displays V: Displays for Defense Applications, (14 September 1998); https://doi.org/10.1117/12.321776

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