Multi-Scaler Display System for Power-Efficient Content Scaling
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Solution Overview
Problem
Existing display devices face inefficiencies in power consumption and resource usage due to the need to scale contents to match the output resolution of the device from the beginning and transmit them, which is resource-intensive and power-inefficient.
Innovation Solution
A display device system utilizing multiple scalers, where a first scaler down-scales or up-scales contents based on characteristic information and power state, and a second scaler further adjusts the scaling to optimize image quality and reduce data rate by determining a second scaling magnification based on the output resolution, thereby reducing power consumption and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If contents are scaled to match the output resolution of the display device from the beginning and transmitted, then the display quality is ensured, but power consumption and resource usage increase
Solution Approach 1:
The scaling process is divided into two separate stages performed by different scalers: a first scaler performs initial scaling (down-scaling or up-scaling) based on content characteristics and power state, and a second scaler performs final scaling to match the display resolution. This segmentation allows the system to optimize power consumption while maintaining display quality by distributing scaling tasks across multiple components with different functions.
2Manufacturing precision
If contents are scaled to match the output resolution of the display device from the beginning, then the display quality is ensured, but resource usage increases
Solution Approach 1:
The scaling functionality is segmented into two independent scalers with distinct roles. The first scaler handles preliminary scaling operations based on content characteristics and system power state, reducing the workload for subsequent processing. The second scaler then performs the final scaling to match display resolution. This segmentation reduces overall resource usage by avoiding redundant scaling operations while ensuring display quality is maintained.
Solution Approach 2:
The system dynamically adjusts the scaling strategy by detecting power state and content characteristics to determine whether the first scaler should perform down-scaling or up-scaling. This dynamic adaptation allows the system to optimize resource usage based on real-time conditions while still achieving the required display quality through the coordinated action of both scalers.
3Device complexity
If a single scaler is used to scale contents to display resolution, then device complexity is reduced, but power consumption and resource usage increase
Solution Approach 1:
Rather than using a single scaler that must handle all scaling scenarios, the system segments the scaling function into two specialized scalers. The first scaler handles content-specific scaling based on detected characteristics and power state, while the second scaler handles the final display-matching scaling. This segmentation, while increasing component count, actually reduces overall system complexity by allowing each scaler to be optimized for its specific function, leading to more efficient power consumption.
4Use of energy by moving object
If contents are down-scaled first and then up-scaled to display resolution, then power consumption is reduced, but image quality may deteriorate
Solution Approach 1:
The system performs preliminary scaling actions by the first scaler based on content characteristics and power state before the final scaling operation. When down-scaling is performed first, the system is prepared to compensate for potential quality loss through the second scaler's up-scaling operation, which uses edge detection and sharpness improvement algorithms to restore image quality. This preliminary action approach allows power consumption to be reduced while maintaining image quality through carefully orchestrated multi-stage processing.
Data Source
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AI summary
A display device is provided. The display device includes: an image processor image-processing contents and scaling the contents at a first scaling magnification; a controller determining a second scaling magnification on the basis of a resolution of the contents scaled at the first scaling magnification and an output resolution of the display device; and a display scaling the contents scaled at the first scaling magnification depending on the second scaling magnification and displaying the contents scaled depending on the second scaling magnification.