Touch Panel Map Display with Pressure-Sensitive View Control
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Solution Overview
Problem
The existing map display technologies on navigation devices face challenges in providing an efficient user interface due to the limited screen size, as the operation bar reduces the area for displaying map data, making it difficult for users to obtain necessary information.
Innovation Solution
A map display apparatus with a touch panel that determines the strength of touch to control the display format, scrolling the map when the touch is at or below a certain strength and changing the bird's eye view angle when the touch is stronger, allowing for intuitive adjustment of the map view without requiring a dedicated interface for angle change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an operation bar is displayed on the screen to control map display format, then the map display functionality is improved, but the area for displaying map data becomes smaller
Solution Approach 1:
The patent merges the operation bar functionality with the touch panel by making the touch panel itself sensitive to touch strength. The touch panel both displays map data and receives control inputs through varying touch pressures, eliminating the need for a separate operation bar interface.
Solution Approach 2:
The touch panel is designed to serve multiple functions: it displays map data, detects touch position for scrolling, and detects touch strength for angle control. This multi-functional design eliminates the need for separate dedicated interfaces for different control operations.
2Adaptability or versatility
If the display screen size is limited on mobile devices, then the device portability is improved, but the area for displaying map data is reduced
Solution Approach 1:
The patent applies different response characteristics to different regions of the touch panel based on touch strength thresholds. Light touches (below threshold) trigger scrolling, while strong touches (above threshold) trigger angle changes. This local differentiation of response behavior maximizes the utility of the limited display area.
Solution Approach 2:
The system dynamically adjusts the display format based on real-time touch strength detection. The map display transitions between scrolling mode and angle adjustment mode depending on the detected touch pressure, allowing flexible adaptation to user needs within the constrained display space.
3Ease of operation
If the touch panel responds to all touch inputs uniformly, then the ease of operation is improved, but the ability to distinguish between scrolling and angle adjustment is reduced
Solution Approach 1:
The patent changes the response parameter based on the touch strength parameter. By detecting the pressure magnitude of the touch input and comparing it against a predetermined threshold, the system automatically selects the appropriate action (scrolling vs. angle adjustment). This parameter-based differentiation simplifies the user interface while maintaining clear functional distinction.
Data Source
AI summary
A map display apparatus includes a display that displays a map viewed at a given angle for bird's eye view with respect to the ground; a touch panel that is disposed on the display; a determining unit that determines strength of touch of an object on the touch panel; a display controller that controls a display format of the map displayed on the display, based on a result of determination by the determining unit, where the display controller scrolls the map when the strength of touch is at most a given strength, and changes the angle for bird's eye view when the strength of touch exceeds the given strength.