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:
Jan. 22, 2019
Filed:
Dec. 01, 2015
Amazon Technologies, Inc., Seattle, WA (US);
Suchit Shreyas Shah, San Jose, CA (US);
Joseph Patrick Jones, Seattle, WA (US);
Timothy Daniel Leehane, San Jose, CA (US);
Martin Steven Rauchwerk, San Jose, CA (US);
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
A computing device executes a 'night mode' for optimizing the device display's light emission for night-time use. The device stores a dimming filter and/or a color filter to achieve a desired brightness and color temperature of the display. The dimming filter is used to set a display backlight level and to 'dim' the display data itself via alpha blending of the screen image with a grey mask. The computing device can blend the image with the grey mask in order to dim the display below system minimums. The color filter is alpha blended with each pixel in the image to reduce the luminance of blue light until the luminance is lower than that of another color of the emitted light. The proper dimming and color filters may be selected according to a desired screen brightness obtained from user input and/or from ambient light sensor data.