Image Display Power Saving via Zone Frame Rate Control
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Solution Overview
Problem
Existing display technologies face limitations in substantially reducing power consumption, especially as display sizes increase and resolutions become higher, necessitating a more effective method to conserve energy.
Innovation Solution
An image display apparatus and method that enters a power saving mode by cutting off power to unnecessary components and outputting stored second image data to the screen, using a controller to manage the display of second image data and adjust settings such as frame rate and backlight usage, allowing for reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If display size increases and resolution becomes higher, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent segments the display area into multiple zones with different frame rates (e.g., 60Hz for important areas, 30Hz or lower for less important areas). This allows high resolution and quality to be maintained in critical regions while reducing power consumption in less critical regions, thus resolving the contradiction between image quality and power consumption.
Solution Approach 2:
The patent dynamically adjusts the frame rate of different display zones based on their importance and content characteristics. By making the frame rate adjustable and adaptive rather than uniform, the system can optimize the balance between image quality (maintaining high frame rates where needed) and power consumption (reducing frame rates where acceptable), thereby resolving the technical contradiction.
2Use of energy by moving object
If frame rate is reduced to save power, then power consumption is reduced, but image quality deteriorates
Solution Approach 1:
The patent applies different frame rates to different local zones of the display based on their importance. Critical areas maintain high frame rates (e.g., 60Hz) to preserve image quality, while non-critical areas use lower frame rates to reduce power consumption. This local differentiation resolves the contradiction by ensuring image quality is maintained where necessary while achieving power savings overall.
Solution Approach 2:
The system dynamically adjusts frame rates based on zone importance and content type, rather than applying a static uniform frame rate. This dynamic adaptation allows the system to maintain high image quality in important areas while reducing power consumption in less important areas, effectively resolving the contradiction between these two parameters.
3Use of energy by moving object
If power is cut off to reduce consumption, then power consumption is reduced, but display functionality is lost
Solution Approach 1:
The patent segments the display into multiple zones that can operate independently with different power levels. Instead of cutting power to the entire display, only specific zones can be reduced or turned off based on their importance, allowing the system to reduce power consumption while maintaining essential display functionality in critical areas.
Solution Approach 2:
The system dynamically controls power distribution to different display zones based on their importance and usage patterns. Rather than a binary on/off state for the entire display, power is adaptively allocated to maintain functionality where needed while reducing consumption where acceptable, resolving the contradiction between power savings and functionality.
Data Source
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AI summary
Provided herein is an image display apparatus including a receiver configured to receive first image data; a signal processor configured to process the received first image data; an outputter configured to output the processed first image data; a storage configured to store second image data; and a controller configured to cut off power supplied to at least one component from among components of the image display apparatus and to control the outputter to output the stored second image data to an area of a screen, in response to the image display apparatus entering a power saving mode.