Display Control Apparatus Adaptive Scaling for Resolution and Viewing Distance
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Solution Overview
Problem
Existing display control systems fail to adaptively adjust image display size based on changes in resolution, viewing distance, and screen size, leading to discomfort for viewers due to significant differences in image quality between high and low-resolution content, especially when viewing distance is short, screen size is large, or viewing duration is long.
Innovation Solution
An image control apparatus that includes a resolution detecting unit, a viewing-distance detecting unit, a screen-size acquiring unit, and a display-size control unit, which work together to dynamically adjust the display size of images based on the amount of resolution change, viewing distance, and screen size, using pre-stored conversion parameters to ensure optimal viewing comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If low-resolution content is enlarged and displayed in a high-resolution display, then the display size can be increased, but the image quality is significantly degraded and becomes blurred
Solution Approach 1:
The patent applies dynamics by making the display size adjustable rather than fixed. The display size is dynamically changed based on the resolution of the input content, allowing the system to adapt between different content resolutions (HD, SD, OverHD) while maintaining optimal image quality. This resolves the contradiction by enabling the display to switch between large size for high-resolution content and appropriate size for low-resolution content, preventing blur while maximizing display utilization.
2Device complexity
If the display size is uniquely determined with respect to the resolution of detected image signals, then the control is simplified, but the display size cannot be adaptively controlled in accordance with the degree of reduction in resolution
Solution Approach 1:
The patent applies parameter changes by introducing multiple display size parameters that can be selected based on content resolution. Instead of a fixed display size, the system changes the display size parameter according to the detected resolution (HD, SD, OverHD). This allows adaptive control while maintaining manageable complexity through predefined resolution categories and corresponding display size settings.
3Manufacturing precision
If low-resolution images are always displayed on a reduced scale, then the image quality degradation is minimized, but the benefit of large-screen displays cannot be sufficiently enjoyed
Solution Approach 1:
The patent resolves this contradiction by making the display size dynamic rather than statically reduced. When high-resolution content (OverHD or HD) is detected, the system displays at full size to maximize the benefit of large-screen displays. When low-resolution content (SD) is detected, the system automatically reduces the display size to prevent visible blur and maintain image quality. This dynamic adjustment ensures both full utilization of large screens for high-res content and quality preservation for low-res content.
4Duration of action of moving object
If high-resolution content is switched to low-resolution content, then the viewing duration can be extended, but discomfort caused by resolution difference is further increased
Solution Approach 1:
The patent applies dynamics by continuously monitoring content resolution and adjusting display size in real-time. When switching from high-resolution to low-resolution content, the system dynamically reduces the display size to compensate for the resolution drop, thereby maintaining comfortable viewing conditions throughout extended viewing periods. This prevents viewer discomfort while allowing longer viewing durations.
Data Source
AI summary
An image control apparatus includes a signal-receiving unit to which image signals are input, a resolution detecting unit configured to detect the resolution of the input image signals, a viewing-distance detecting unit configured to detect a viewing distance between a viewer and a display apparatus, a display-size control unit configured to control a display size of images displayed in the display apparatus, a scaling unit, and an output unit configured to output the images scaled by the scaling unit to the display apparatus. When the resolution of images is changed, the scaling unit scales the image signals in accordance with the amount of change in resolution and the viewing distance, and outputs the signals to the display apparatus.