The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2021
Filed:
Mar. 29, 2021
Applicant:
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Inventors:
Ricky J Johnson, Shellsburg, IA (US);
Blake P Covington, Mount Vernon, IA (US);
Assignee:
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); H05K 7/20 (2006.01); H05B 6/00 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133382 (2013.01); H05K 7/20954 (2013.01); H05B 6/00 (2013.01);
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.