Display brightness control based on location data
First Claim
1. 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.
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Accused Products
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.
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Citations
31 Claims
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1. A method for controlling the luminance of an electronic display having a backlight, comprising the steps of:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for controlling the luminance of an electronic display having a backlight, comprising the steps of:
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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. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for controlling the luminance of an electronic display having a backlight, comprising the steps of:
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determining present location data for the electronic display through a GPS device; based on the location data from the GPS device, determining if a present time is during a sunset transition period or a sunrise transition period; driving the luminance of the electronic display based on the location data from the GPS device without using any data from an ambient light sensor; 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. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification