Display Device Image Rewriting Cost Optimization
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Solution Overview
Problem
Display devices face challenges in efficiently changing images while minimizing power consumption, especially in locations where a stable power source is not available.
Innovation Solution
A display device comprising a display order determiner, a display, and an image rewriter, where the display order determiner determines the sequence of images based on the rewriting cost required by the image rewriter, allowing for efficient image changes with reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display device rewrites the entire image when changing displayed images, then the image change is complete and accurate, but the power consumption increases significantly
Solution Approach 1:
The patent divides the image into multiple regions and identifies only the portions that need to be rewritten when changing displayed images. Instead of rewriting the entire image, the system selectively rewrites only the necessary portions, thereby reducing power consumption while maintaining image change completeness.
Solution Approach 2:
The patent applies partial action by rewriting only the necessary portions of the image rather than the entire image. The display order determiner calculates rewriting costs and determines the optimal display order to minimize the total amount of rewriting required, thus reducing power consumption while achieving the necessary image changes.
2Productivity
If the display device changes images frequently to show multiple advertisements, then the advertising effectiveness improves, but the power consumption increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating the rewriting costs for different image sequences and determining the optimal display order in advance. The display order determiner analyzes the advertisements and pre-determines the sequence that minimizes rewriting costs, allowing the display device to change images efficiently without excessive power consumption.
Solution Approach 2:
The patent applies dynamics by adaptively adjusting the display order based on calculated rewriting costs. The system dynamically determines the optimal sequence of images to minimize rewriting operations, enabling frequent advertisement changes while controlling power consumption through intelligent sequencing rather than fixed patterns.
3Duration of action of stationary object
If the display device uses a stable power source, then the operation duration is unlimited, but the device cannot operate in locations without stable power supply
Solution Approach 1:
The patent applies parameter changes by optimizing the display parameters (image sequence, rewriting timing, and display order) to minimize power consumption. By changing the temporal and sequential parameters of image display, the system extends the operation duration on limited power sources, enabling deployment in locations without stable power supply.
Data Source
AI summary
A display device includes a display order determiner, a display, and an image rewriter. The display order determiner determines a display order of a plurality of images. The display sequentially changes and displays the plurality of images according to the display order determined by the display order determiner. The image rewriter rewrites at least part of the image displayed on the display to change the image displayed on the display to the image in the next display order. Thus, the image displayed on the display is changed to the image in the next display order. The display order determiner determines the display order based on a rewriting cost required by the image rewriter when changing the plurality of images.