Microsoft Assigned Patent for Infrared Vision with Liquid Crystal Display Device
(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service
ALEXANDRIA, Va., March 2 -- Microsoft, Redmond, Wash., has been assigned a patent (8,384,694) developed by Karlton Powell, Lake Stevens, Wash., Zhiqiang Liu, Kirkland, Wash., and Prafulla Masalkar, Issaquah, Wash., for an "infrared vision with liquid crystal display device."
The abstract of the patent published by the U.S. Patent and Trademark Office states: "Various embodiments related to infrared vision for a liquid crystal display (LCD) device are disclosed herein. For example, one disclosed embodiment provides a display system, comprising an LCD device and a display backlight configured to illuminate the LCD device by directing visible light toward an interior surface of the LCD device. The display system further comprises a wavelength-selective reflector disposed between the display backlight and the LCD device and having a smooth surface facing the interior surface of the LCD device, where the wavelength-selective reflector has a wavelength-selective coating configured to cause incident visible light from the display backlight to be transmitted through the wavelength-selective reflector to the LCD device, and cause incident infrared light reflected from an object on or near an exterior surface of the LCD device to be reflected off of the wavelength-selective reflector and directed to an infrared vision subsystem."
The patent application was filed on Nov. 17, 2009 (12/620,483). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8,384,694.PN.&OS=PN/8,384,694&RS=PN/8,384,694
Written by Kusum Sangma; edited by Anand Kumar.
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