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.:

US 8421741 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Sep. 11, 2009
Applicants:

Chihao Xu, Saarbruecken, DE;

Andreas Karrenbauer, St. Wendel, DE;

Mark Albrecht, Saarbruecken, DE;

Inventors:

Chihao Xu, Saarbruecken, DE;

Andreas Karrenbauer, St. Wendel, DE;

Mark Albrecht, Saarbruecken, DE;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and system for displaying an image on a liquid crystal display (LCD) that may reduce power consumption. The method and system can include calculating a luminance for pixels in an image in a LCD based upon a light spread function and brightness values of light emitting diodes (LEDs). The method and system can also include changing a brightness of an LED based upon a consideration of the gray value of the pixels and the distance of the pixels from a dominant LED. The method and system can further set the brightness of the LED units to a brightness substantially greater than or equal to a gray value of each pixel of the image.


Find Patent Forward Citations

Xu, Chihao. (2013). Method, system and apparatus for power saving backlight (U.S. Patent No. 8421741). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8421741

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…