Dynamic Magnification Adjustment for Touch Display Navigation
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Solution Overview
Problem
Conventional techniques for canceling enlarged displays can result in large changes to the display range, making it difficult for users to locate desired portions, especially when the original magnification is high, and require time-consuming scrolling without changing magnification, especially when moving in oblique directions.
Innovation Solution
An electronic apparatus with a control unit that adjusts the display magnification and range position in response to user operations, reducing magnification and changing the display range direction when the user moves the designated position within an edge region, allowing for easier navigation to desired areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display magnification is reduced significantly when canceling enlarged display, then the display range changes to show more content, but the user may lose sight of the desired portion to which the designated position is wished to be moved
Solution Approach 1:
The patent applies dynamics by making the display magnification adjustable and changeable in real-time based on user interaction. Instead of a fixed magnification level, the system dynamically transitions between different magnification states (first magnification, second magnification, and intermediate magnifications) allowing the display range to adapt flexibly to user needs while maintaining context awareness.
Solution Approach 2:
The patent changes the magnification parameter gradually from the second magnification to the first magnification through multiple intermediate steps. This parameter change approach allows the display range to expand progressively rather than abruptly, enabling users to track the desired portion while gradually seeing more context, thus resolving the contradiction between showing more content and maintaining user orientation.
2Loss of information
If the display magnification is not changed when scrolling, then the user can maintain the current view, but it takes time to move the display range to the desired portion when the display magnification is large
Solution Approach 1:
The system dynamically adjusts magnification during navigation operations. When the user indicates interest in a region (through touch or other input), the magnification changes from the second to the first magnification, enabling faster navigation to the desired portion while maintaining view continuity through smooth transitions.
Solution Approach 2:
The patent performs preliminary magnification adjustment before the user completes the navigation action. By detecting user intent (such as touching near the desired portion) and preemptively changing the magnification, the system prepares the display state in advance, reducing the overall time required for the user to reach the desired portion.
3Measurement precision
If the display magnification is large, then detailed portions can be viewed clearly, but it takes time and effort to correct the movement direction when moving the designated position or display range in an oblique direction
Solution Approach 1:
The system dynamically switches between high magnification (for detailed viewing) and low magnification (for easier navigation). When the user needs to correct movement direction, the magnification is temporarily reduced to the first magnification, providing a broader view that makes directional correction more intuitive and easier, then can return to second magnification once positioning is complete.
Solution Approach 2:
The patent changes the magnification parameter in response to user interaction patterns. When oblique or corrective movements are detected, the system adjusts the magnification parameter to facilitate easier directional control, then restores the original magnification parameter when precise viewing is needed again, making the operation easier without permanently sacrificing detail visibility.
Data Source
AI summary
An electronic apparatus includes: a receiving unit configured to be receivable a user operation of designating a position on a display target displayed on a display and moving the designated position; and a control unit, wherein in a case where the display target is displayed at a second magnification that is higher than a first magnification at which an entire display target is displayed, the control unit performs, in response to a movement of the designated position within an edge region of a display range of the display target caused by the user operation, control to change a position of the display range in a direction corresponding to the designated position and to lower a display magnification of the display target to a magnification higher than the first magnification and lower than the second magnification.