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:
May. 28, 2013
Filed:
Oct. 17, 2011
Joseph C. Chen, Waterloo, CA;
Joseph C. Chen, Waterloo, CA;
Research In Motion Limited, Waterloo, Ontario, CA;
Abstract
The disclosure describes a device and method for adjusting a backlight for a display for an electronic device. The method comprises: identifying a highest brightness value for a pixel in an image to be generated on the display; determining a brightness headroom value for the image based on a difference between the highest brightness value and a maximum brightness level for the display; and if the brightness headroom value is determined to be larger than a predetermined threshold, then when an adjusted image based on the image is generated on the display having a brightness based on the brightness headroom, generating an adjusted backlight level for the backlight, the adjusted backlight level being based on a ratio of the highest brightness value to the maximum brightness level.