External Display Screen Adaptation for Width Changes
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Solution Overview
Problem
Existing techniques for displaying a screen on an external terminal device can result in poorly visible images due to alterations in the vertical or horizontal width, leading to reduced visibility.
Innovation Solution
An information processing device adjusts screen data based on the external display unit's dimensions, generating and transmitting altered screen data to maintain optimal visibility by accounting for changes in width, using modes like Mirroring and Extension to ensure the screen is not stretched excessively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the external terminal device reconstructs the screen image from transmitted screen data when display dimensions change, then the screen can be displayed on the external display unit, but the screen image becomes stretched and visibility deteriorates
Solution Approach 1:
The patent applies dynamics by making the screen data transmission adaptive to display dimension changes. The information processing device dynamically determines whether to transmit altered screen data based on the magnitude of dimension changes, allowing the system to adapt between maintaining original quality and adapting to new dimensions without static fixed behavior
Solution Approach 2:
The patent changes the parameter of screen data transmission by altering the screen data before transmission when dimension changes occur. The information processing device modifies the screen data parameters (width, height) to match the external display unit's dimensions, thereby resolving the contradiction between adaptability and image quality
2Manufacturing precision
If the information processing device transmits original screen data without alteration, then the screen image quality is maintained, but the screen cannot be properly displayed when display dimensions change
Solution Approach 1:
The system dynamically adjusts its behavior based on display dimension changes. When the external display unit's dimensions differ from the original screen dimensions, the information processing device dynamically switches from transmitting original screen data to transmitting altered screen data, enabling adaptive display while maintaining quality where possible
Solution Approach 2:
The patent modifies screen data parameters (width, height) before transmission when the external display unit's dimensions require adaptation. This parameter change allows the screen to be properly displayed on the external device while minimizing quality degradation through selective alteration
3Area of stationary object
If the screen is stretched to fit the external display unit dimensions, then the display area is maximized, but the screen image visibility deteriorates
Solution Approach 1:
The patent applies partial action by selectively altering only the necessary portions of screen data based on the magnitude of dimension changes. Instead of always altering or never altering, the system performs partial alteration only when needed, balancing display area maximization with visibility preservation
Solution Approach 2:
The information processing device changes screen data parameters (width, height) to match the external display unit's dimensions when necessary. This parameter adjustment allows the screen to fill the display area while maintaining visibility by avoiding excessive stretching through controlled parameter modification
Data Source
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AI summary
[Problem] To prevent even occurrence of an event that requires an alteration in the vertical width and/or the horizontal width of the screen image displayed on the external display unit from reducing the visibility of the screen image displayed on an external display unit. [Solution] An information processing device receives information on a vertical width and a horizontal width of an external display unit, and generates, based on the information, screen data on a screen image to be displayed on the external display unit. When an event requiring an alteration in the vertical width and/or the horizontal width of a screen displayed on an external display unit occurs, the information processing device transmits screen data including: screen data on a first content obtained by altering the screen displayed on the external display unit at that time to a size corresponding to an altered vertical width and an altered horizontal width; and screen data on a second content to an external terminal device. The second content, generated in the external display unit, is displayed in a region due to a difference between a pre-altered vertical width and the corresponding post-altered vertical width displayed on the external display unit, and between a pre-altered horizontal width and the post-altered horizontal width of the external display unit.