Dynamic Frame Rate Control for Display Power Optimization
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Solution Overview
Problem
Existing techniques for determining frame rates in electronic devices are inefficient in dynamically adjusting power consumption based on display data changes, leading to suboptimal power management.
Innovation Solution
A method and apparatus that compare display data at a reference time with data after a specific period, identifying changed portions and edge components to dynamically adjust the frame rate, either increasing, maintaining, or decreasing it based on the analysis of these changes across specific areas of the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the frame rate is decreased to reduce power consumption, then power consumption is reduced, but the display quality and responsiveness deteriorate
Solution Approach 1:
The patent applies dynamics by making the frame rate adjustable rather than fixed. The display device dynamically changes the frame rate based on the degree of change detected in display data. When changes are minimal, the frame rate is lowered to save power; when changes are significant, the frame rate is increased to maintain display quality. This dynamic adjustment resolves the contradiction between power consumption and display quality.
Solution Approach 2:
The patent changes the frame rate parameter based on the degree of change in display data. By monitoring changes in display content and adjusting the frame rate parameter accordingly, the system optimizes power consumption while maintaining adequate display quality. The frame rate parameter is modified from a constant value to a variable that adapts to content changes.
2Reliability
If the frame rate is constantly maintained at high level, then display quality is improved, but power consumption increases
Solution Approach 1:
The patent changes the frame rate parameter from a constant high value to a variable that adapts to content changes. By monitoring the degree of change in display data and adjusting the frame rate parameter accordingly, the system maintains high display quality only when necessary while reducing power consumption during static or minimally changing content.
Solution Approach 2:
The patent implements periodic detection of display data changes to determine appropriate frame rate adjustments. Instead of continuously maintaining high frame rate, the system periodically assesses content changes and adjusts frame rate accordingly, reducing power consumption while maintaining display quality when needed.
3Use of energy by moving object
If the frame rate is dynamically adjusted, then power consumption is optimized, but the complexity of the control system increases
Solution Approach 1:
The patent segments the display screen into multiple regions and independently determines the degree of change for each region. This segmentation allows the system to apply different frame rates to different regions based on their individual change characteristics, optimizing power consumption while managing control complexity through localized processing.
Solution Approach 2:
The patent applies local quality by allowing different frame rates for different regions of the display based on local content changes. Regions with significant changes maintain higher frame rates for quality, while regions with minimal changes use lower frame rates to save power. This local differentiation optimizes overall power consumption without requiring complex global control.
4Use of energy by moving object
If the frame rate is decreased during idle periods, then power consumption is reduced, but the responsiveness to user input deteriorates
Solution Approach 1:
The patent applies dynamics by making the frame rate responsive to detected changes in display data, including user input events. When user input is detected causing display changes, the system dynamically increases the frame rate to maintain responsiveness. During idle periods with no changes, the frame rate is lowered to save power, thus resolving the contradiction between power consumption and responsiveness.
Data Source
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AI summary
Various embodiments relate to an apparatus and a method for determining a frame rate in an electronic device. The method for determining a frame rate in an electronic device, according to one embodiment, comprises the steps of: comparing 1st display data to be displayed at a reference time and 2nd display data to be displayed after the reference time; and determining a frame rate based on the comparison result. The method for determining a frame rate in an electronic device can be implemented through various embodiments.