White Paper

Dual Redundant Display in Bubble Canopy Applications

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www.mrcy.com INNOVATION THAT MATTERS ® Corporate Headquarters 50 Minuteman Road • Andover, MA 01810 USA (978) 967-1401 • (866) 627-6951 • Fax (978) 256-3599 The Mercury Systems logo and the following are trademarks or registered trademarks of Mercury Systems, Inc.: Mercury Systems, Innovation That Matters,EchoCore. Other marks used herein may be trademarks or registered trademarks of their respective holders. Mercury believes this information is accurate as of its publication date and is not responsible for any inadvertent errors. The information contained herein is subject to change without notice. Copyright © 2020 Mercury Systems, Inc. EXPID 14776 8028.00E-0120-wp-canopy Figure 12. ELDIM plot of uncontrolled light output from the display Conclusions Many cockpit applications require the use of specially developed AMLCDs to meet both video architecture and optical requirements unique to those particular aircraft. Mercury has developed numerous custom AMLCDs to meet these requirements. However, with the increase in availability of high resolution, wide format AMLCDs, there are applications that can begin with a COTS AMLCD and use our technologies to meet the cockpit demands. A key characteristic of applicability is redundancy. Mercury's relationship with LG Display allows full control of the interface between the AMLCD glass and interface to the end item LRU. Control of this interface has allowed our engineers to develop dual redundancy in a straightforward video architecture. While all commercial AMLCDs strive for wide angle viewing, the bubble canopy demands that the light from the display elements be steered within a very distinct and defined viewing cone to minimize reflections of primary and secondary light off of the canopy. This issue has been solved with the development of secondary optics that extinguish light outside of the specified viewing eye box. Figure 9. Headbox Specification Figure 10. Normalized Transmission of typical canopy reflection controlled approach Figure 11. ELDIM plot of controlled light output from the display

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