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:
Sep. 01, 2020
Filed:
Mar. 30, 2018
Applicant:
Facebook Technologies, Llc, Menlo Park, CA (US);
Inventor:
Gareth John Valentine, York, GB;
Assignee:
Facebook Technologies, LLC, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); H05B 45/10 (2020.01); H03M 1/82 (2006.01); H03K 7/08 (2006.01); H05B 45/37 (2020.01);
U.S. Cl.
CPC ...
H05B 45/10 (2020.01); G09G 3/32 (2013.01); H03K 7/08 (2013.01); H03M 1/822 (2013.01); H05B 45/37 (2020.01); G09G 2310/027 (2013.01); G09G 2320/064 (2013.01);
Abstract
Embodiments relate to a light-emitting-diode (LED) cell that includes a LED and a controller. The controller receives a brightness data signal and generates a driving signal corresponding to the brightness data signal. The controller includes a comparator that receives the brightness data signal and a control waveform signal. The controller is coupled to a switched current source that generates a driving current based on the driving signal.