Reduce power consumption in mobile devices through dynamic resolution scaling

A computing device, pixel density technology, applied in the direction of reducing energy consumption, power management, wireless communication, etc., can solve problems such as increased power consumption and no improvement in user viewing experience.

Inactive Publication Date: 2020-01-10
MICROSOFT TECH LICENSING LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, rendering content at display densities that exceed human visual perceptibility results in increased power consumption without any improvement in user viewing experience

Method used

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  • Reduce power consumption in mobile devices through dynamic resolution scaling
  • Reduce power consumption in mobile devices through dynamic resolution scaling
  • Reduce power consumption in mobile devices through dynamic resolution scaling

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Embodiment Construction

[0012] As discussed above, computing devices increasingly have displays that display content at high display resolutions. Displaying content at high pixel display densities requires significant system resources, such as processing power, which in turn results in high system power consumption. However, many of these high pixel display densities exceed human visual perceptibility. As a result, many display devices display content at resolutions that require significant processing power, but do not provide an improved user experience over what lower resolutions can provide.

[0013] This disclosure describes techniques for identifying a pixel density at which content is to be displayed to a user based at least in part on a user's distance from a display. For example, a computing device may use a display density below the maximum display density of the computing device but equal to or above the human visual perceptibility density at that distance (i.e., one above which an average...

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Abstract

The present invention relates to reducing power consumption of mobile devices through dynamic resolution scaling. A computing device may dynamically adjust pixel density based at least in part on a viewing distance between a user of the computing device and a display. In some examples, viewing distance may be determined using low power acoustic (eg, ultrasound) sensing. The pixel density used to display content may be determined using an algorithm based on viewing distance and the user's visual acuity. The content to be displayed on the computing device may be sent to a processor of the computing device for graphics processing. In some examples, the content may be truncated prior to processing (such as by using a hook process) and scaled based on the determined pixel density. By shrinking the pixel density of the content, the amount of system resources required to process the content may be less, which in turn may result in less power consumption of the processor to perform graphics processing operations, thereby extending the battery life of the computing device.

Description

technical field [0001] The present invention relates to the display of mobile devices, and more particularly to reducing the power consumption of mobile devices through dynamic resolution scaling. Background technique [0002] Computing devices increasingly have high-resolution displays that display content at high display densities. However, these high-resolution displays consume a lot of system resources, especially processing power, which in turn leads to high system power consumption. Since battery life is critical to computing devices, especially mobile devices, these high-resolution displays can lead to poor performance by limiting the amount of time a user can interact with their electronic device before the battery needs to be recharged. user experience. Furthermore, in many cases, such high display density displays present pixels at sizes far beyond the visual perceptibility of human vision, even at very close viewing distances. Thus, rendering content at display...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01G06F1/3234G06T3/40
CPCG09G5/363G09G2340/045G09G5/373H04W52/027G09G2360/08G09G2354/00G06F1/3231G06F1/3265Y02D10/00Y02D30/70G09G2340/0407G06F9/54G06F1/32
Inventor 刘云新周虎成
Owner MICROSOFT TECH LICENSING LLC
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