Gaze driven display front of screen performance
View Patent ↗An information handling system includes a display, a gaze detector that determines a location on the display that corresponding with where a user is looking at the display, and a processor. The processor receives the location from the gaze detector, determines a non-power-reduced portion of the display that includes the location, determines a power-reduced portion of the display that is exclusive of the non-power-reduced portion, receives data associated with a pixel of an image included in the power-reduced portion, changes the data such that a first power level consumed by the display when displaying the pixel with the changed data is less than a second power level consumed by the display when displaying the pixel with the unchanged data, and sends the changed data to the display.
1. An information handling system comprising:
a display;
a gaze detector that:
determines a first location and a second location on the display, the first and second locations corresponding with where a user is looking at the display;
determines a third location on the display, the third location corresponding with where the user is paying less attention as compared with the first and second locations; and
determines that the third location is between the first and second locations; and
a processor that:
receives the first, second, and third locations from the gaze detector;
designates a first non-power-reduced portion of the display, the first non-power-reduced portion including the first and second locations;
designates a second non-power-reduced portion of the display, the second non-power-reduced portion including the third location, the second non-power-reduced portion being designated in response to determining that the third location is between the first and second locations;
designates a power-reduced portion of the display, the power-reduced portion being exclusive of the first, second, and third locations;
receives first data associated with a first pixel of an image included in the power-reduced portion;
changes the first data such that a first power level consumed by the display when displaying the first pixel with the changed first data is less than a second power level consumed by the display when displaying the first pixel with the first data, wherein a color/brightness/contrast level for the first pixel with the changed first data ([R′,G′,B′]) is given as:
[ R′,G′,B′ ]=[R,G,B ]×R BASE × R LOC ,
where [R,G,B] is a color/brightness/contrast level for the first pixel with the first data, R BASE is a base adjustment factor for the power-reduced portion of the display, and R LOC is a location based adjustment factor for the power-reduced portion of the display; and
sends the changed first data to the display.
2. The information handling system of claim 1 , wherein the processor further:
receives second data associated with a second pixel of the image; and
changes the second data such that a third power level consumed by the display when displaying the second pixel with the changed second data is less than a fourth power level consumed by the display when displaying the second pixel with the second data.
3. The information handling system of claim 2 , wherein the processor further:
determines a first distance between the first pixel and one of the first and second non-power-reduced portion, wherein changing the first data is in response to determining the first distance; and
determines a second distance of the second pixel from one of the first and second non-power-reduced portion, wherein changing the second data is in response to determining the second distance;
wherein a first amount of the change of the first data is greater than a second amount of the change of the second data when the first distance is greater than the second distance.
4. The information handling system of claim 1 , wherein the display comprises an organic light emitting diode type display.
5. The information handling system of claim 4 , wherein in changing the first data the processor further reduces a brightness associated with the first pixel.
6. The information handling system of claim 4 , wherein in changing the first data the processor further reduces a contrast associated with the first pixel.
7. The information handling system of claim 4 , wherein in changing the first data the processor further changes a color balance associated with the first pixel.
8. The information handling system of claim 1 , wherein the display comprises a liquid crystal display type display.
9. The information handling system of claim 8 , wherein in changing the first data the processor further reduces a brightness level of a backlight associated with the liquid crystal display.
10. A method comprising:
receiving, at a processor of an information handling system, a first location, a second location, and a third location from a gaze detector of the information handling system, the first and second locations corresponding with where a user is looking at a display of the information handling system, the third location corresponding with where the user is paying less attention as compared with the first and second locations;
determining that the third location is between the first and second locations;
designating a first non-power-reduced portion of the display, the first non-power-reduced portion including the first and second locations;
designating a second non-power-reduced portion of the display, the second non-power-reduced portion including the third location, the second non-power-reduced portion being designated in response to determining that the third location is between the first and second locations;
designating a power-reduced portion of the display, the power-reduced portion being exclusive of the first, second, and third locations; and
receiving, by the processor, first data associated with a first pixel of an image included in the power-reduced portion;
changing, by the processor, the first data such that a first power level consumed by the display when displaying the first pixel with the changed first data is less than a second power level consumed by the display when displaying the first pixel with the first data, wherein a color/brightness/contrast level for the first pixel with the changed first data ([R′,G′,B′]) is given as:
[ R′,G′,B′ ]=[ R,G,B ]× R BASE × R LOC ,
where [R,G,B] is a color/brightness/contrast level for the first pixel with the first data, R BASE is a base adjustment factor for the power-reduced portion of the display, and R LOC is a location based adjustment factor for the power-reduced portion of the display; and
sending the changed first data to the display.
11. The method of claim 10 , further comprising:
receiving, by the processor, second data associated with a second pixel of the image; and
changing, by the processor, the second data such that a third power level consumed by the display when displaying the second pixel with the changed second data is less than a fourth power level consumed by the display when displaying the second pixel with the second data.
12. The method of claim 11 , further comprising:
determining a first distance between the first pixel and one of the first and second non-power-reduced portion, wherein changing the first data is in response to determining the first distance; and
determining a second distance of the second pixel from one of the first and second non-power-reduced portion, wherein changing the second data is in response to determining the second distance;
wherein a first amount of the change of the first data is greater than a second amount of the change of the second data when the first distance is greater than the second distance.
13. The method of claim 10 , wherein the display comprises an organic light emitting diode type display.
14. The method of claim 13 , wherein in changing the first data the method further comprises:
reducing a brightness associated with the first pixel.
15. The method of claim 13 , wherein in changing the first data the method further comprises:
reducing a contrast associated with the first pixel.
16. The method of claim 13 , wherein in changing the first data the method further comprises:
changing a color balance associated with the first pixel.
17. The method of claim 10 , wherein the display comprises a liquid crystal display type display.
18. The method of claim 17 , wherein in changing the first data the processor further reduces a brightness level of a backlight associated with the liquid crystal display.
19. A non-transitory computer-readable medium including code for performing a method, the method comprising:
receiving, at a processor of an information handling system, a first location, a second location, and a third location from a gaze detector of the information handling system, the first and second locations corresponding with where a user is looking at a display of the information handling system, the third location corresponding with where the user is paying less attention as compared with the first and second locations;
determining that the third location being between the first and second locations;
designating a first non-power-reduced portion of the display, the first non-power-reduced portion including the first and second locations;
designating a second non-power-reduced portion of the display, the second non-power-reduced portion including the third location, the second non-power-reduced portion being designated in response to determining that the third location is between the first and second locations;
designating a power-reduced portion of the display, the power-reduced portion being exclusive of the first, second, and third locations;
receiving, by the processor, first data associated with a first pixel of an image included in the power-reduced portion;
changing, by the processor, the first data such that a first power level consumed by the display when displaying the first pixel with the changed first data is less than a second power level consumed by the display when displaying the first pixel with the first data, wherein a color/brightness/contrast level for the first pixel with the changed first data ([R′,G′,B′]) is given as:
[ R′,G′,B′ ]=[ R,G,B ]×R BASE × R LOC ,
where [R,G,B] is a color/brightness/contrast level for the first pixel with the first data, R BASE is a base adjustment factor for the power-reduced portion of the display, and R LOC is a location based adjustment factor for the power-reduced portion of the display; and
sending the changed first data to the display.
20. The computer-readable medium of claim 19 , the method further comprising:
receiving, by the processor, second data associated with a second pixel of the image;
changing, by the processor, the second data such that a third power level consumed by the display when displaying the second pixel with the changed second data is less than a fourth power level consumed by the display when displaying the second pixel with the second data;
determining a first distance between the first pixel and one of the first and second non-power-reduced portion, wherein changing the first data is in response to determining the first distance; and
determining a second distance of the second pixel from one of the first and second non-power-reduced portion, wherein changing the second data is in response to determining the second distance;
wherein a first amount of the change of the first data is greater than a second amount of the change of the second data when the first distance is greater than the second distance.