White-Based Power Savings for Display Devices
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Solution Overview
Problem
Current power conservation techniques for electronics devices, such as laptops and smartphones, are inefficient as they uniformly shut down or modify all video output, leading to increased power consumption when reactivating displays, resulting in minimal power savings.
Innovation Solution
The method involves separating video information into white and non-white components, altering the white video information to reduce power consumption by adjusting RGB values, and displaying the altered white information alongside non-white information, utilizing human visual processing mechanisms to maintain usability while conserving power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If uniform power conservation techniques are used to shut down or modify all video output, then power consumption is reduced, but the ability to see graphics items and use the computing device is impeded
Solution Approach 1:
The patent segments video information into white and non-white components, applying different processing to each segment. White video information is altered to reduce power consumption, while non-white information remains unchanged to maintain visibility and usability of graphics items.
Solution Approach 2:
The patent applies local quality by selectively altering only the white portions of video output while leaving other portions unchanged. This creates different visual qualities in different regions of the display, with altered white areas consuming less power and unaltered areas maintaining full visibility for interactive elements.
2Ease of operation
If the entire display is reactivated at full power in response to user input, then the ability to use the computing device is restored, but little power is saved
Solution Approach 1:
The patent performs preliminary action by pre-altering white video information to a lower power state before user interaction is needed. When the device is activated, the display is already in a power-reduced state, eliminating the need to reactivate at full power and thus saving significant energy while maintaining immediate usability.
Solution Approach 2:
The patent introduces dynamics by creating a new operational state between full power and complete shutdown. The display operates in an altered white state during active use, dynamically adjusting power consumption based on the type of video information being displayed, rather than switching between only two extreme states.
3Use of energy by moving object
If white video information is altered to reduce power consumption, then power savings are achieved during continuous usage, but the visual appearance of the display is changed
Solution Approach 1:
The patent applies color changes by altering the white video information to different shades or intensities that consume less power. The white portions are transformed into altered white with modified color properties, achieving power savings while maintaining sufficient visual appearance for usability.
Data Source
AI summary
Described herein are power conservation techniques that reduce power consumption for an electronics device including a display. The techniques divide video information for display into white and non-white video information. The white video information is altered such that the alteration decreases the amount of power required to display the white video information. The altered white video information and non-white video information are then visually output together. White-based power conservation as described herein may be performed while a person uses the electronics device, which reduces power consumption continually during usage.