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. 09, 2014
Filed:
Oct. 07, 2008
Display apparatus, quantity-of-light adjusting method for display apparatus and electronic equipment
Applicants:
Hiroaki Ichikawa, Kanagawa, JP;
Kenichi Kikuchi, Kanagawa, JP;
Kimio Hatajiri, Kanagawa, JP;
Inventors:
Assignee:
Sony Corporation, , JP;
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0869 (2013.01); G09G 2320/041 (2013.01); G09G 2320/0666 (2013.01); G09G 2320/064 (2013.01); G09G 2360/145 (2013.01);
Abstract
A display apparatus includes display means for displaying an image, a light source that irradiates light to the display means, and control means for controlling the quantity of light of the light source with pulse width modulation. The control means controls the quantity of light of the light source based on the ratio of the light-on period with pulse width modulation to the light-off period when the light source is turned off.
Ichikawa, Hiroaki. (2014). Display apparatus, quantity-of-light adjusting method for display apparatus and electronic equipment (U.S. Patent No. 8830157). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8830157
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile