Methods for spatial-based power savings
First Claim
Patent Images
1. A method for reducing power consumed by a liquid crystal display device, the method comprising:
- displaying an active graphics component in a first portion of a display area provided by the liquid crystal display device;
in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion such that the liquid crystal display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and
simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion.
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Abstract
Described herein are systems and methods that reduce power consumption for an electronics device that includes a display. Power conservation systems and methods described herein alter video information in one or more inactive portions of a display area such that the alteration decreases power consumption. The invention finds use with many electronics devices, such as portable computing devices powered from a battery or other limited source of power. Since video output often dominates power consumption for an electronics device, decreasing display power consumption may extends battery longevity for the portable device.
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Citations
21 Claims
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1. A method for reducing power consumed by a liquid crystal display device, the method comprising:
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displaying an active graphics component in a first portion of a display area provided by the liquid crystal display device; in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion such that the liquid crystal display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for reducing power consumed by a liquid crystal display device, the method comprising:
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displaying a graphics component in a first portion of a display area provided by the liquid crystal display device; in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion such that that luminance for the video information in the inactive portion decreases; reducing backlight luminance in the inactive portion for the liquid crystal display device such the liquid crystal display device will consume less power when displaying the altered video information; and simultaneously displaying the graphics component in the first portion and the altered video information in the inactive portion. - View Dependent Claims (15, 16, 17)
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18. A method for reducing power consumed by a liquid crystal display device, the method comprising:
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displaying an active graphics component in a first portion of a display area provided by the liquid crystal display device; in response to user inactivity in an inactive portion of the display area that is outside the first portion, altering video information in the inactive portion such that that luminance for the video information in the inactive portion decreases; reducing backlight luminance in the inactive portion for a backlight included in the liquid crystal display device such the liquid crystal display device will consume less power when displaying the altered video information in the inactive portion than an amount of power that would be required to display the video information without the alteration; and simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion. - View Dependent Claims (19, 20)
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21. A computer readable medium including executable instructions for reducing power consumed by a liquid crystal display device, the executable instructions comprising:
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instructions for displaying an active graphics component in a first portion of a display area provided by the liquid crystal display device; in response to user inactivity in an inactive portion of the display area that is outside the first portion, instructions for altering video information in the inactive portion such that the liquid crystal display device will consume less power when displaying the altered video information than an amount of power that would be required to display the video information without the alteration; and instructions for simultaneously displaying the active graphics component in the first portion and the altered video information in the inactive portion.
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Specification