Method for environmental adaptation of display characteristics based on location
First Claim
1. A method for environmental adaptation of electronic display characteristics, comprising:
- determining sunset and sunrise times for a day;
determining whether a present time is between sunrise and sunset or between sunset and sunrise;
selecting a gamma for the display based on whether the present time is between sunrise and sunset or between sunset and sunrise, wherein said gamma refers to a mathematic exponent in a power function Sγ
that is adapted to transform scaling of gray levels (on a sub-pixel basis) in an image, wherein S represents a normalized value of an image signal; and
driving the display at the selected gamma.
1 Assignment
0 Petitions
Accused Products
Abstract
The exemplary embodiments herein provide a method for environmental adaptation of electronic display characteristics, comprising 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. An exemplary method would then proceed by selecting a gamma for the display based on whether the present time is between sunrise and sunset or between sunset and sunrise, and driving the display at the selected gamma. The gamma can further be selected based on Artificial Ambient Light Sensor (AAS) data, which can be calculated during sunrise and sunset transition times.
-
Citations
20 Claims
-
1. A method for environmental adaptation of electronic display characteristics, comprising:
-
determining sunset and sunrise times for a day; determining whether a present time is between sunrise and sunset or between sunset and sunrise; selecting a gamma for the display based on whether the present time is between sunrise and sunset or between sunset and sunrise, wherein said gamma refers to a mathematic exponent in a power function Sγ
that is adapted to transform scaling of gray levels (on a sub-pixel basis) in an image, wherein S represents a normalized value of an image signal; anddriving the display at the selected gamma. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for environmental adaptation of electronic display characteristics, comprising:
-
determining sunset and sunrise times for a day, including a sunset transition period and a sunrise transition period, determining if a present time is during the sunrise transition, daytime, the sunset transition, or nighttime, calculating artificial ambient sensor data (AAS) for sunrise and selecting a gamma for the display based on the AAS data if the present time is during the sunrise transition period, selecting a gamma for the display for daytime if the present time is daytime, calculating AAS data for sunset and selecting a gamma for the display based on the AAS data if the present time is during the sunset transition period, selecting a gamma for the display for nighttime if the present time is nighttime, and driving the display with the selected gamma; wherein, respectively, said gamma refers to a mathematic exponent in a power function Sγ
that is adapted to transform scaling of gray levels (on a sub-pixel basis) in an image, wherein S represents a normalized value of an image signal. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
-
16. A method for environmental adaptation of electronic display characteristics, comprising:
-
determine location data for the electronic display through a GPS device; and determining sunrise and sunset times for a given day, directing the electronic display to utilize a first gamma setting if a present time is between sunrise and sunset, and directing the electronic display to utilize a second gamma setting if the present time is between sunset and sunrise; wherein said first gamma setting and said second gamma setting, respectively, refer to a mathematic exponent in a power function Sγ
that is adapted to transform scaling of gray levels (on a sub-pixel basis) in an image, wherein S represents a normalized value of an image signal. - View Dependent Claims (17, 18, 19, 20)
-
Specification