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:
Apr. 21, 2020
Filed:
Jul. 23, 2019
Applicant:
William Dunn, Alpharetta, GA (US);
Inventor:
William Dunn, Alpharetta, GA (US);
Assignee:
American Panel Corporation, Alpharetta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G02F 1/1335 (2006.01); F21V 8/00 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3426 (2013.01); G02B 6/0068 (2013.01); G02B 6/0073 (2013.01); G02F 1/133603 (2013.01); G02B 6/0061 (2013.01); G09G 3/3406 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/08 (2013.01); G09G 2360/16 (2013.01);
Abstract
A first and second plurality of lighting elements are each configured to produce a desired overall luminance output for a backlight when illuminated at full power. If a measured luminance output is greater than a threshold, a controller supplies a non-zero power level less than full power to the first and second plurality of lighting elements. If the measured luminance output is less than the threshold, the controller increases the power supplied to only one of the first and second plurality of lighting elements, up to full power, to return the measured luminance output to at least said threshold.