US 10,321,549 B2 · Display brightness control based on location data

Abstract

The exemplary embodiments herein provide a method for controlling the luminance of an electronic display, including the steps of determining the sunset and sunrise times for the day and determining whether the present time is between sunrise and sunset or between sunset and sunrise. The backlight may be driven at a daytime level if the present time is between sunrise and sunset, while the backlight may be driven at a nighttime level if the present time is between sunset and sunrise. In some embodiments, artificial ambient sensor (AAS) data is used to determine the desired backlight or display luminance. The AAS data may be adjusted for a sunset or sunrise transition time, as well as for an approximate percentage of cloud cover in the sky.

Claims31

Dependent claims

A method for controlling the luminance of an electronic display having a backlight, comprising the steps of:

determining the sunset and sunrise times for the present day;
determining whether the present time is between a sunrise transition period, daytime, a sunset transition period, or nighttime;
driving the backlight based on whether the present time is during the sunrise transition period, daytime, the sunset transition period, or nighttime such that the backlight is driven at a daytime level if the present time is during daytime and the backlight is driven at a nighttime level that is less than the daytime level if the present time is during nighttime;
and
remotely monitoring or adjusting a brightness of the electronic display independent of normal operational input if the present time is during the sunrise transition period or the sunset transition period;
wherein the backlight is adapted to be on for daytime use and nighttime use of the electronic display;
and
wherein the electronic display is directly backlit by the backlight.

5 more elements

A method for controlling the luminance of an electronic display having a backlight, comprising the steps of:

determining the sunset and sunrise times for the present day, including a sunset transition period and a sunrise transition period;
determining if the present time is during the sunrise transition period, daytime, the sunset transition period, or nighttime;
calculating AAS data for sunrise and driving the backlight based on the AAS data if the present time is during the sunrise transition period;
driving the backlight at a daytime level if the present time is daytime,
calculating AAS data for sunset and driving the backlight based on the AAS data if the present time is during the sunset transition period;
driving the backlight at a nighttime level if the present time is nighttime;
and
remotely monitoring or adjusting a brightness of the electronic display independent of normal operational input if the present time is during the sunrise transition period or the sunset transition period;
wherein the electronic display is directly backlit by the backlight;
and
wherein said AAS data, depending on time of day, takes into account:
a desired display brightness level at nighttime;
a desired display brightness level during daytime;
data that approximates ambient light level for a display environment;
the sunrise transition period;
and the sunset transition period.

13 more elements

Dependencies are inferred from the claim text.

Display brightness control based on location data

Life of this patent

Display brightness control based on location data

Life of this patent

Abstract

Claims31