Display Timing Adjustment for Multi-Aspect Ratio Cloning
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Solution Overview
Problem
Existing information processing apparatuses fail to simultaneously display video/image information appropriately on both internal and external display devices with different aspect ratios, leading to distorted images on external displays.
Innovation Solution
An information processing apparatus with a display condition acquisition section, resolution comparison section, aspect ratio comparison section, and display adjustment section that acquires and compares display conditions, adjusts resolutions, and synchronizes display timings to ensure optimal video/image output on both internal and external displays with different aspect ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video/image information is output to both internal and external display devices with different aspect ratios using the same display conditions, then the internal display device can display the image appropriately, but the external display device displays the image with distortion (vertically-oriented image with laterally extended dot aspect ratio)
Solution Approach 1:
The patent applies local quality by setting different display conditions for different display devices. Specifically, it acquires display condition information (including aspect ratio) for each display device individually, and then adjusts the video signal parameters locally for each device based on its specific characteristics, rather than using a single universal setting for all devices.
Solution Approach 2:
The patent changes display parameters (resolution, refresh rate, and particularly aspect ratio) according to the specific requirements of each display device. By dynamically adjusting these parameters based on the acquired display condition information, the system optimizes image quality for each device while maintaining compatibility across different aspect ratios.
2Adaptability or versatility
If the display conditions are optimized for the external display device, then the external display device can display the image appropriately, but the internal display device cannot display the image appropriately
Solution Approach 1:
The patent segments the display output by creating separate processing paths for the internal and external display devices. It acquires display condition information for each device independently and generates separate video signals optimized for each device's specific requirements, allowing each device to receive appropriately tailored display conditions.
Solution Approach 2:
The patent implements dynamic adjustment of display conditions by continuously monitoring the display device being used and automatically switching between different display condition sets. The system can dynamically change resolution, refresh rate, and aspect ratio parameters based on which display device is active, ensuring optimal performance for the current configuration.
3Ease of operation
If a single video signal is output to multiple display devices with different aspect ratios, then the system can provide clone display function, but the image becomes distorted on devices with mismatched aspect ratios
Solution Approach 1:
The patent implements a smart cloning mechanism where the display conditions from one display device are copied to another, but with automatic adjustment for aspect ratio differences. When clone mode is activated, the system copies the primary display's settings to the secondary display while modifying the aspect ratio parameter to match the secondary display's native characteristics, preventing image distortion.
4Manufacturing precision
If the system acquires and processes display condition information for multiple display devices, then it can optimize display quality for each device, but the system complexity increases
Solution Approach 1:
The patent achieves multi-functionality by creating a universal display condition management system that can handle multiple display devices with different aspect ratios through a single integrated interface. The system acquires display condition information from various sources (EDID, user settings, detection) and applies appropriate adjustments automatically, providing a unified solution that works across different device types without requiring separate processing for each device category.
Data Source
AI summary
According to one embodiment, an information processing apparatus includes an internal display device that displays image information; an output terminal connectable with at least one external display device or more; and a display adjustment section that changes resolutions of the internal display device and the external display device to a display resolution based on comparison between the resolutions of the internal display device and the external display device and further adjust, when an aspect ratio of the internal display device differs from an aspect ratio of the external display device, display timing of the internal display device whose resolution has been changed and display timing of the external display device whose resolution has been changed, based on information about differences among the aspect ratios.