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:
Oct. 10, 2017
Filed:
May. 29, 2013
Applicant:
Nec Display Solutions, Ltd., Tokyo, JP;
Inventor:
Katsuyuki Matsui, Tokyo, JP;
Assignee:
NEC DISPLAY SOLUTIONS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G09G 3/34 (2006.01); H05B 33/08 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3406 (2013.01); G09G 3/32 (2013.01); G09G 3/36 (2013.01); H05B 33/0845 (2013.01); G09G 2320/064 (2013.01);
Abstract
A display device includes a drive control unit that changes a frequency of a drive signal based on a brightness of a light source of a backlight when a duty ratio of the drive signal is in a first range or is in a third range, the drive signal being a pulse signal for driving the light source. The drive control unit fixes the frequency of the drive signal to a predetermined frequency when the duty ratio of the drive signal is in a second range.
Matsui, Katsuyuki. (2017). Display device for varying the driving frequency of a backlight and driving method thereof (U.S. Patent No. 9786231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9786231
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile