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US Patent 11181765 System and method to heat LCDs using UV LEDs

Patent 11181765 was granted and assigned to Rockwell Collins on November, 2021 by the United States Patent and Trademark Office.

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Patent abstract

An inexpensive system for maintaining an LCD display above an operative temperature includes ultraviolet (UV) light-emitting diodes (LEDs) incorporated into a backlight structure. The UV LEDs operate in a frequency range sufficiently removed from the visible band to not interfere with the user. A temperature sensor continuously or periodically monitors the temperature of the LCD and activates the UV LEDs to maintain the LCD in a predetermined temperature range for a desired response time.

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