Adaptive Display Partial Update for Power Saving
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Solution Overview
Problem
Conventional display partial update methods fail to perform content adjustment without causing blocking artifacts and do not achieve power saving due to the need to update entire image frames.
Innovation Solution
An adaptive display partial update scheme that determines whether partial or full updates are necessary based on differences in image frame properties, allowing for selective partial-frame processing to avoid blocking artifacts and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If display full update is performed to update the entire image frame, then content adjustment can be performed without blocking artifacts, but power consumption increases due to processing all pixels
Solution Approach 1:
The patent divides the image frame into multiple regions (first region and second region) based on content characteristics. The processor selectively applies different processing strategies to different regions: full update for regions requiring content adjustment and partial update for regions that can maintain previous values, thereby reducing overall power consumption while maintaining image quality where needed.
Solution Approach 2:
Instead of performing full update on the entire image frame, the patent applies partial update only to specific regions where it is sufficient. The processor determines that certain pixels or regions can retain their previous values without full reprocessing, thus performing less than complete action to achieve the same visual result with reduced power consumption.
2Use of energy by moving object
If display partial update is performed to update only changed pixels, then power consumption is reduced, but blocking artifacts appear and content adjustment cannot be performed
Solution Approach 1:
The patent segments the image processing task by identifying different region types (first region with certain characteristics and second region with other characteristics). For the first region, full update is performed to avoid blocking artifacts and enable content adjustment. For the second region, partial update is sufficient. This segmentation allows the system to achieve both power saving and image quality by applying the appropriate processing level to each segment.
Solution Approach 2:
The patent applies different processing qualities to different regions of the image frame. The first region receives full update processing to ensure high quality and avoid artifacts, while the second region receives partial update processing. This local differentiation of processing quality allows the system to maintain overall image quality while reducing power consumption in regions where full processing is not necessary.
3Reliability
If the entire image frame is updated, then no blocking artifacts occur, but processing time and computational complexity increase
Solution Approach 1:
The patent segments the image frame into multiple regions based on content characteristics and processes each region differently. This segmentation reduces the overall processing complexity by identifying regions that do not require full update processing, thereby decreasing the number of pixels that need to be processed while maintaining image quality in critical regions.
Solution Approach 2:
The patent applies partial update processing to regions where full update is not necessary, reducing the total number of processing operations required. By performing only the necessary amount of processing (partial rather than full) on certain regions, the system reduces computational complexity and processing time while maintaining sufficient image quality through selective full update on other regions.
Data Source
AI summary
Methods and apparatuses pertaining to adaptive display partial update may involve determining whether partial update for an image frame is allowed and, responsive to a determination that the partial update for the image frame is allowed, determining whether the partial update is applicable to the image frame. Responsive to a determination that the partial update is applicable to the image frame, whether or not at least a difference between one or more properties of the image frame and one or more properties of a previous image frame exceeds a threshold may be determined. A partial-frame processing may be performed to partially update the image frame responsive to a determination that the difference does not exceed the threshold.